Research Results / Technical Information

	Classification	Registration number	Title of invention
251	Patent right	4517044	INSTALLATION STRUCTURE OF LINING PC SLAB AND ITS PC SLAB
251	Patent right	4486585	GROUNDWATER DRAINING METHOD
251	Patent right	4476093	POROUS CONCRETE FREEZE-THAW TEST METHOD
251	Patent right	4465459	PINSTALLATION STRUCTURE OF LINING PC SLAB AND ITS PC SLAB
251	Patent right	4447223	PARTIAL DUST COLLECTOR
250	Patent right	4446945	WALL SURFACE TYPE GROUND WATER DISCHARGE METHOD AND COLLECTION UNIT USED THEREFOR
249	Patent right	4424536	HEAVY DUTY CORROSION-PROOF LAMINATED COAT, STEEL MEMBER WITH HEAVY DUTY CORROSION-PROOF LAMINATED COAT, AND METHOD FOR FORMING HEAVY DUTY CORROSION-PROOF LAMINATED COAT
248	Patent right	4421627	HEATING-TYPE GROUND WATER RESISTIVITY LOGGING METHOD, DETECTOR FOR HEATING-TYPE GROUND WATER RESISTIVITY LOGGING, AND MEASURING INSTRUMENT FOR HEATING-TYPE GROUND WATER RESISTIVITY LOGGING
247	Patent right	4415081	MOUNTING STRUCTURE AND ASSEMBLING METHOD FOR OUTER WALL PANEL
246	Patent right	4412648	SOIL EROSION PREVENTION METHOD
245	Patent right	4411418	METHOD AND EQUIPMENT FOR TRANSPORTING SEDIMENT ACCUMULATED ON BOTTOM OF WATER
244	Patent right	4378337	GAS-LIQUID DISSOLVING APPARATUS
243	Patent right	4364816	CONSTRUCTION METHOD OF BANK SECTION AND THE BANK SECTION
242	Patent right	4324699	ANTICORROSIVE TREATMENT CONSTRUCTION METHOD OF CONCRETE SKELETON SURFACE, ANTICORROSIVE TREATMENT STRUCTURE AND ANTICORROSIVE PANEL
241	Patent right	4316512	POROUS ELASTIC PAVING MATERIAL
240	Patent right	4313078	AIR CURTAIN FORMING METHOD AND AIR CURTAIN DEVICE
239	Patent right	4310502	REINFORCED STRUCTURE OF BEARING STRATUM UNDER EMBANKMENT
238	Patent right	4279192	PRESTRESSED CONCRETE STRUCTURE FOR LINING WORK, AND ITS FABRICATION METHOD
237	Patent right	4279005	ASPHALT BINDER AND PAVING ASPHALT MIXTURE
236	Patent right	4264721	METHOD AND APPARATUS FOR TESTING NOISE REDUCTION PERFORMANCE OF DRAINAGE PAVEMENT
235	Patent right	4252982	BRIDGE AND CONSTRUCTION METHOD OF BRIDGE
234	Patent right	4231908	CLEANING SYSTEM OF DUST-CONTAINING SPACE AND CLEANING METHOD OF DUST-CONTAINING SPACE
233	Patent right	4224604	TUNNEL WIDENING APPARATUS
232	Patent right	4217203	CONSTRUCTION METHOD OF STRUCTURE, STRUCTURE AND ELEVATOR
231	Patent right	4214477	SIGNAL-REPRODUCTION METHOD, PROGRAM FOR SIGNAL REPRODUCTION, RECORDING MEDIUM, SIGNAL REPRODUCTION DEVICE, AND RECEIVING STATION EQUIPPED WITH THEM, AND RECEIVING SYSTE
230	Patent right	4204046	BRIDGE STRUCTURE
229	Patent right	4203403	BRIDGE STRUCTURE
228	Patent right	4193991	AGGREGATE FOR PAVEMENT FOR COPING WITH AIR POLLUTION
227	Patent right	4165651	METHOD AND DEVICE FOR SAMPLING CONCRETE TEST PIECE
226	Patent right	4144702	CONSTRUCTION METHOD FOR ENLARGED TUNNEL
225	Patent right	4131424	IMPROVING OF GROUND
224	Patent right	4127551	CONCRETE STRUCTURE REPAIRING METHOD AND CONCRETE STRUCTURE
223	Patent right	4111275	POSITION DETECTION METHOD, POSITION DETECTION SYSTEM, MEASURING CAR AND POSITION DETECTION DEVIC
222	Patent right	4097643	METHOD OF INCREASING STRENGTH OF LANDSLIDE PREVENTIVE PILE
221	Patent right	4093944	TRACTION-TYPE MULTI-CHANNEL SURFACE WAVE SURVEY SYSTEM
220	Patent right	4054848	MANUFACTURE OF FLUIDIZATION TREATED SOIL
219	Patent right	4045337	TREATMENT METHOD FOR ORGANIC WASTE AND TREATMENT EQUIPMENT THEREFOR
218	Patent right	4005387	BAR ARRANGEMENT AND ANCHORAGE METHOD AND ANCHORAGE USED FOR THE SAME METHOD
217	Patent right	3996818	WORK CARRIAGE FOR TUNNEL WIDENING WORK
216	Patent right	3987936	CLOGGING PREVENTION APPARATUS FOR WATER COLLECTING PIPE FOR GROUND WATER REMOVAL FACILITY
215	Patent right	3985966	COATED FILM-PEELING AGENT OF STEEL STRUCTURAL MATERIAL AND METHOD THEREOF
214	Patent right	3972062	METHOD FOR CAPTURING/EXTRACTING ENDOCRINE DISRUPTING CHEMICAL SUBSTANCE IN WATER SAMPLE CONTAINING SUSPENDED SUBSTANCE AND SOLID PHASE EXTRACTION COLUMN USED THEREIN
213	Patent right	3958153	TIMBERING CONNECTION STRUCTURE AND METHOD IN WIDENING TUNNEL
212	Patent right	3952287	COLLECTING METHOD AND RECOVERING OF ENERGY FROM COMBUSTIBLES
211	Patent right	3944725	PROTECTOR APPARATUS AND METHOD OF DISCHARGING MUCK ON PROTECTOR APPARATUS
210	Patent right	3935485	PERFORATED PLATE FOR PREVENTING BLOCKAGE OF SURFACE WATER DRAINAGE PATH
209	Patent right	3922636	PROTECTOR WITH WORK SCAFFOLDING
208	Patent right	3903186	LANDSLIDE METER USING FBG OPTICAL FIBER SENSOR
207	Patent right	3898999	CONSTRUCTION METHOD FOR ENLARGING TUNNEL CROSS SECTION AND PROTECTIVE STRUCTURE FOR GENERAL VEHICLE WITHIN TUNNEL
206	Patent right	3896474	PAVEMENT STRUCTURE FOR VIBRATION REDUCTION AND CONSTRUCTION METHOD FOR PAVEMENT
205	Patent right	3887687	STRUCTURE OF UNDERGROUND WALL
204	Patent right	3878713	GROUND IMPROVING MATERIAL AND GROUND IMPROVING METHOD USING THE SAME
203	Patent right	3870276	RESERVING METHOD FOR DIGESTION GAS
202	Patent right	3865727	THRUST CONSTRUCTION METHOD
201	Patent right	3862023	APPARATUS FOR MEASURING SURFACE LAYER SHEARING STRENGTH OF VISCOUS GROUND AND MEASURING METHOD THEREFOR

	Classification	Registration number	Title of invention
200	Patent right	3860784	VENTILATOR AND VENTILATION METHOD FOR CONSTRUCTION WORK FOR EXPANDING WIDTH OF EXISTING TUNNEL
199	Patent right	3858019	THRUST CONSTRUCTION METHOD
198	Patent right	3856301	EXTENSION METHOD OF EXISTING TUNNEL MAKING USE OF MOBILE WORKING PLATFORM
197	Patent right	3849986	GAS-LIQUID DISSOLVING APPARATUS
196	Patent right	3834623	DEHYDRATION AND DRYING METHOD FOR SLURRY
195	Patent right	3829225	CONTROL METHOD FOR FINISHED FORM OF PAVEMENT
194	Patent right	3824988	OSCILLATION DAMPING TYPE ASPHALT PAVEMENT
193	Patent right	3820302	GROUND IMPROVEMENT METHOD
192	Patent right	3820301	GROUND IMPROVING METHOD AND GROUND IMPROVING MATERIAL TO BE USED THEREFOR
191	Patent right	3813662	VEGETATIONAL BAGGING DEHYDRATION BAG
190	Patent right	3807619	METHOD FOR SEALING POLLUTED SOIL, AND BAG FOR SEALING POLLUTED SOIL
189	Patent right	3806227	METHOD FOR PREVENTING ELUTION OF ALKALI IN CONSTRUCTION OF IMPROVED SOIL BANKING
188	Patent right	3796524	WIDENING METHOD OF TUNNEL, TUNNEL AND SIMPLE PROTECTOR
187	Patent right	3789100	METHOD OF CONSTRUCTING WIDENING TUNNEL
186	Patent right	3783024	SYSTEM AND METHOD FOR TREATING SLUDGE
185	Patent right	3769673	CONSTRUCTION METHOD OF CONCRETE STRUCTURE
184	Patent right	3762945	OPEN CHANNEL FLOW RATE OBSERVATION METHOD USING NONCONTACT TYPE CURRENT METER, AND ITS DEVICE
183	Patent right	3759778	METHOD OF RETAINING BANKING COMPRESSING MIXED LIGHT WEIGHT SOIL
182	Patent right	3757237	CONNECTING DEVICE OF STRUCTURE
181	Patent right	3755058	BUCKLING INHIBITING METHOD AND STRUCTURE OF MAIN STEEL MEMBER IN CONCRETE CONSTRUCTION
180	Patent right	3755037	CLOGGING PREVENTION APPARATUS FOR WATER COLLECTING PIPE FOR GROUND WATER REMOVAL FACILITY
179	Patent right	3742417	CONSTRUCTION METHOD OF IMPROVED COLUMN BODY
178	Patent right	3742240	CONNECTABLE PACKED DEWATERING SACK
177	Patent right	3741219	SIMPLE SELECTION METHOD FOR SEPARATION MEMBRANE MODULE AND SIMPLE SELECTION APPARATUS
176	Patent right	3741218	PURIFICATION TREATMENT APPARATUS OF WASTEWATER CONTAINING DIOXINS AND PURIFICATION TREATMENT METHOD
175	Patent right	3728512	METHOD FOR REMOVING DIOXINS
174	Patent right	3723851	ELECTRO-CHEMICAL GROUND FORMATION METHOD
173	Patent right	3718203	SOIL EROSION PREVENTIVE METHOD
172	Patent right	3716346	WIDENING METHOD OF EXISTING TUNNEL AND DEMOLITION METHOD OF THE EXISTING TUNNEL
171	Patent right	3713556	EQUIPMENT FOR TUNNEL WIDENING WORK
170	Patent right	3713539	DETECTION DEVICE OF SLOPE DEFORMATION
169	Patent right	3706878	EXTENSION METHOD OF EXISTING TUNNEL
168	Patent right	3702345	OVERFLOW SPILLWAY
167	Patent right	3699708	WATER LEAKAGE POSITION DETECTING SYSTEM
166	Patent right	3697055	BRIDGE
165	Patent right	3694744	BIOGAS RESOURCES RECOVERING METHOD
164	Patent right	3682551	METHOD FOR SOIL IMPROVEMENT
163	Patent right	3665834	DEVICE AND METHOD FOR ADJUSTED MUDDY WATER TREATMENT
162	Patent right	3665833	BACKFILLING TECHNIQUE FOR BURYING DITCH
161	Patent right	3665821	HIGH-DENSITY THREE-DIMENSIONAL REFLECTION METHOD SEISMIC EXPLORATION SYSTEM
160	Patent right	3664921	CROSS CABLE SYSTEM OF SUSPENSION BRIDGE
159	Patent right	3663544	BRIDGE
158	Patent right	3663433	AGGREGATE FOR MEASURE PAVEMENT FOR AIR POLLUTION AND PAVEMENT STRUCTURE USING THE SAME AND FORMING METHOD THEREFOR
157	Patent right	3660939	PORTABLE TYPE FLUIDIZING TREATING DEVICE OF SOIL AND SAND FOR BACKFILLING
156	Patent right	3659638	PRESTRESS INTRODUCTION METHOD TO STRUT
155	Patent right	3653550	MEASURING DEVICE OF EXPANSION AND CONTRACTION OF GROUND
154	Patent right	3653549	OPTICAL FIBER SENSOR FOR INVESTIGATION OF LANDSLIDE BEHAVIOR
153	Patent right	3653548	THERMOELECTRIC ELEMENT SNOW MELTING SYSTEM AND THERMOELECTRIC ELEMENT POWER GENERATION SYSTEM
152	Patent right	3641468	MULTIPOINT DISPLACEMENT MEASURING SYSTEM
151	Patent right	3620805	MECHANICAL HANGING DEVICE OF SCAFFOLD

	Classification	Registration number	Title of invention
150	Patent right	3618418	STEEL PIPE SHEET PILE WALL AND EXECUTION METHOD THEREOF
149	Patent right	3613591	METHOD AND APPARATUS FOR MEASURING SHEAR STRENGTH IN SOIL
148	Patent right	3605618	METHOD FOR FILLING UNDERGROUND CAVITY
147	Patent right	3598342	METHOD OF ENCLOSING UNDERGROUND CONTAMINANT BY CUTOFF WALL
146	Patent right	3588632	ASPHALT PAVEMENT WITH WATER PERMEABILITY AND WATER HOLDING PROPERTY
145	Patent right	3541960	THREE DIMENSIONAL POSITION AUTOMATIC CONTROL METHOD OF CONSTRUCTION EQUIPMENT
144	Patent right	3557537	SCATTERING METHOD FOR FIBER
143	Patent right	3534503	REINFORCING METHOD OF STEEL BRIDGE PIER
142	Patent right	3524889	SYSTEM FOR GRASPING POSITION AND ACTION OF WILD ORGANISM
141	Patent right	3522415	REINFORCING STRUCTURE OF STEEL PIPE COLUMN
140	Patent right	3521232	SLURRY GRAVITATIONALLY CONCENTRATING APPARATUS
139	Patent right	3520297	VIBRATION CONTROL METHOD AND DEVICE OF PARALLEL CABLES
138	Patent right	3516043	RUBBLE STONE FISH PASS BLOCK AND RUBBLE STONE FISH PASS
137	Patent right	3516034	BACKFILLING METHOD FOR UNDERGROUND SPACE
136	Patent right	3493413	CONFINEMENT TREATMENT METHOD FOR HAZARDOUS MATERIAL
135	Patent right	3467536	VIBRATION CONTROL METHOD OF PARALLEL CABLE IN DIAGONAL TENSION BRIDGE AND DEVICE
134	Patent right	3463074	CONSTRUCTION METHOD OF TOWER STRUCTURE AND CONSTRUCTION THEREOF
133	Patent right	3461600	EXPLOSIVE LOADING METHOD AND EXPLOSIVE LOADING DEVICE
132	Patent right	3455305	VIBRATION DAMPING DEVICE OF BRIDGE BEAM
131	Patent right	3448629	ASEISMATIC REINFORCING METHOD FOR FOUNDATION OF EXISTING STRUCTURE
130	Patent right	3433225	METHOD FOR PROBING CRACK IN ROCK-BED
129	Patent right	3424012	JOINT CONSTRUCTION OF STEEL IN STRUCTURE
128	Patent right	3378907	BLASTING FUSE PULLING DEVICE
127	Patent right	3378906	EXPLOSIVE LOADING DEVICE
126	Patent right	3378905	CONTINUOUS EXPLOSIVE FEED DEVICE
125	Patent right	3373776	BASE ISOLATION AND WATER ISOLATION WORK METHOD AT JOINTING PORTION OF VERTICAL SHAFT AND BASE ISOLATION AND WATER ISOLATION CONSTRUCTION
124	Patent right	3368325	INSTALLATION METHOD OF WATER-PRESSURE GAGE FOR MEASUREMENT OF PORE WATER PRESSURE AT INSIDE OF GROUND
123	Patent right	3364636	CONSTRUCTION METHOD FOR LANDSLIDE PREVENTIVE MEASURE BY PREVENTING STORMWATER FROM INFILTRATION
122	Patent right	3357319	REINFORCING METHOD OF BANK BODY AND REINFORCING STRUCTURE OF THE BANK BODY
121	Patent right	3345338	BASE ISOLATION CONSTRUCTION WORK METHOD AND VIBRATION ISOLATION CONSTRUCTION NEAR ARRIVAL VERTICAL SHAFT FOR SHIELD TUNNEL
120	Patent right	3330026	STRUCTURE OF FILLING MOUTH OF BAG FOR BAGGING AND DEWATERING
119	Patent right	3321606	GRAVITATIONAL CONCENTRATION METHOD FOR SLURRY
118	Patent right	3318589	METHOD FOR INVESTIGATING CURED CONCRETE
117	Patent right	3316668	METHOD FOR CONSTRUCTING BASE ISOLATION NEAR VERTICAL SHAFT WHICH SHIELD TUNNEL REACHES
116	Patent right	3312851	METHOD FOR PREVENTING FLOWING-AWAY OF BASE ISOLATOR IN SHIELD TUNNEL
115	Patent right	3229972	PREPARATION METHOD AND DEVICE FOR SHORT FIBER MIXED EARTH AND SAND
114	Patent right	3148815	PACKING AND DEHYDRATING METHOD OF HIGH MOISTURE RATIO VISCOUS EARTH
113	Patent right	3138722	MIXING METHOD AND DEVICE OF SOIL AND SHORT FIBER
112	Patent right	3128506	SUPPORTING STRUCTURE OF GIRDERS OF BRIDGE
111	Patent right	3118531	METHOD FOR OPENING SHORT FIBER BUNDLE AND DEVICE THEREFOR
110	Patent right	3068923	PRELINING TYPE TUNNEL EXCAVATING METHOD AND DEVICE THEREOF
109	Patent right	3050758	DAMPER USED FOR BRIDGE AND STRUCTURE EXCEPT BRIDGE
108	Patent right	3046973	MIXING METHOD AND DEVICE OF DISENTANGLED SHORT FIBER WITH SOIL
107	Patent right	3032831	NOXIOUS SUBSTANCE DETECTOR
106	Patent right	3007908	DEHYDRATION BAG FOR BAGGING DEHYDRATION OF HIGH MOISTURE-CONTENT CALY
105	Patent right	2987023	STEEL SHEET-PILE WITH DECORATIVE BOARD
104	Patent right	2967195	LARGE DISPLACEMENT ABSORPTION SYSTEM
103	Patent right	2967182	TREATMENT OF BOTTOM MUD LAYER IN WATER BASIN
102	Patent right	2961150	FLOOR-SLAB WATERPROOF STRUCTURE AND EXECUTION METHOD
101	Patent right	2952348	CONTROL METHOD FOR GROUT BY GROUT MONITORING SHEATH

	Classification	Registration number	Title of invention
100	Patent right	2952301	ANAEROBIC DIGESTION OF SLUDGE
99	Patent right	2952113	TUNNEL EXCAVATING MACHINE
98	Patent right	2942759	CONTAMINATION REDUCING EQUIPMENT AND CONTAMINATION DIFFUSION PREVENTING METHOD APPLICABLE TO FLOWING WATER AREA
97	Patent right	2942758	SLUDGE SEPARATION-PROMOTED REACTOR AND PURIFICATION PLANT
96	Patent right	2942757	WATER PURIFYING METHOD USING WETLAND IN COMBINATION
95	Patent right	2936067	SLUDGE TREATING METHOD UTILIZING DRY-BEACH WETLAND
94	Patent right	2902739	UPPER PART COPING CONSTRUCTION WORK IN STEEL SHEET-PILE WALL
93	Patent right	2893030	SPECIFIC WEIGHT MEASURING APPARATUS FOR FLUID MATTER
92	Patent right	2883289	METHOD AND APPARATUS FOR MEASURING WATER CONTENT OF AGGREGATE AT BATCHER PLANT
91	Patent right	2881168	METHOD, DEVICE AND SYSTEM FOR DETECTING CHANGE IN SLANT FACE
90	Patent right	2873333	GROUTING CONSTRUCTION
89	Patent right	2867333	WEATHERING DEGREE DISCRIMINATING METHOD FOR BEDROCK
88	Patent right	2860368	SHIELD EXCAVATOR AND SHIELD WORK METHOD USING SAME
87	Patent right	2858380	EXPANSION AND CONTRACTION DEVICE FOR BRIDGE
86	Patent right	2855297	EXECUTION METHOD OF SPLIT TYPE VERTICAL ELLIPTICAL TYPE SHIELD TUNNEL
85	Patent right	2852568	TUNNEL EXCAVATION ENGINEERING MELTHOD IN WATER CONTAINING GROUND FOUNDATION
84	Patent right	2847180	MEASURING METHOD FOR LANDSLIDE DISPLACEMENT
83	Patent right	2843166	SEPARATE TYPE SHIELD EXCAVATOR
82	Patent right	2821528	SHIELD EXCAVATOR
81	Patent right	2819472	METHOD AND APPARATUS FOR MEASURING SHAPE OF WALL SURFACE OF BURIED PIPE
80	Patent right	2819438	MANUFACTURE OF LIGHT-WEIGHT BANKING FOR SOFT GROUND
79	Patent right	2819315	ANAEROBIC FLUIDIZED BED DIGESTING METHOD
78	Patent right	2807843	PLANT COATING TYPE STEEL SHEET PILE REVETMENT
77	Patent right	2805657	CONSTRUCTION OF STEEL SHEET PILE REVETMENT
76	Patent right	2788000	JOINT METHOD OF PRECAST CONCRETE FORM
75	Patent right	2785062	HORIZONTALLY LONG AND ROUGHLY ELLIPTIC SHIELD TUNNEL WITH INTERNAL COLUMN
74	Patent right	2759263	METHOD OF TREATING GROUND IN LAYING PLACE OF DEHYDRATING BAG, AND PROTECTING THE BAG
73	Patent right	2756112	MANUFACTURE OF REGULATING MUD TYPE FLUIDIZING-PROCESSED SOIL AND ITS DEVICE
72	Patent right	2755772	METHOD FOR CONNECTING SHIELD TUNNEL TO STRUCTURE OR SHIELD TUNNELS EACH OTHER, AND DEVICE THEREFOR
71	Patent right	2751038	DRAIN MATERIAL FOR PREVENTING METHOD OF LIQUEFACTION OF GROUND CAUSED BY EARTHQUAKE
70	Patent right	2750361	SEPARATION TYPE SHELD EXCAVATOR
69	Patent right	2746834	VIBRATION CONTROLLER FOR BRIDGE BODY
68	Patent right	2742971	STRUCTURE OF KNOCK-OFF DEVICE FOR ROAD BRIDGE
67	Patent right	2742970	STRUCTURE OF KNOCK-OFF DEVICE FOR ROAD BRIDGE
66	Patent right	2739095	FOUNDATION IMPROVEMENT FOR DRIVING TUNNEL
65	Patent right	2729623	ANAEROBIC DIGESTION METHOD WITH FLUIDIZED BED
64	Patent right	2728363	INJECTION METHOD OF GROUT AND DEVICE THEREFOR
63	Patent right	2714911	JOINT STRUCTURE OF SHIELD-SEGMENT
62	Patent right	2700411	SHIELDING METHOD
61	Patent right	2691044	MULTIPLE SHIELD TUNNELING MACHINE
60	Patent right	2681033	IN-GROUND SLIT WATER SEALING WALL WORK METHOD
59	Patent right	2676013	GROUND IMPROVING METHOD FOR TUNNEL EXCAVATION
58	Patent right	2676012	CONSTRUCTION METHOD FOR TUNNEL
57	Patent right	2676011	GROUND IMPROVING METHOD FOR TUNNEL EXCAVATION
56	Patent right	2668188	APPARATUS AND METHOD FOR MEASURING SUBTERRANEAN-WATER PRESSURE IN GROUND
55	Patent right	2663172	CLOSTRIDIUM BIFERMENTANS
54	Patent right	2662687	CLOSTRIDIUM BIFERMENTANS
53	Patent right	2655737	FILLER FOR HOLE
52	Patent right	2636176	METHOD AND APPARATUS FOR TESTING CONSISTENCY OF CONCRETE
51	Patent right	2615397	VARIABLE DAMPER DEVICE FOR BRIDGE

	Classification	Registration number	Title of invention
50	Patent right	2611919	EXCITING FORCE CONTROLLING DEVICE OF VIBRATION ROLLER
49	Patent right	2611835	ANAEROBIC DIGESTION
48	Patent right	2611021	GROUND IMPROVING MACHINE FOR SLOPE FACE WORK
47	Patent right	2602052	DEVICE FOR DETECTING DEGREE OF SOIL COMPACTION
46	Patent right	2594171	MEASUREMENT OF VOID WATER PRESSURE IN GROUND BY FORMATION OF SEAL LAYER ON WATER-STOP LAYER
45	Patent right	2592696	MACHINE AND METHOD FOR CONSTRUCTING UNDERGROUND WALL
44	Patent right	2584585	INSTALLATION METHOD FOR SPRING WATER PRESSURE MEASURING PIPE IN GROUND
43	Patent right	2573880	MEASURING OF GAP WATER PRESSURE IN THE GROUND AND ITS DEVICE
42	Patent right	2568115	GRATING WALL FOR PREVENTING GROUND FROM LIQUIDIZING
41	Patent right	2559978	MIXED LIGHTWEIGHT EARTH
40	Patent right	2546747	METHOD FOR DETECTING DEVELOPMENT OF CRACK OF STEEL BRIDGE STRUCTURE USING AE METHOD
39	Patent right	2545745	DAMPING METHOD OF STRUCTURE
38	Patent right	2537591	SOIL AND SAND CARRYING-OUT DEVICE FOR PNEUMATIC CAISSON
37	Patent right	2535302	METHOD FOR DEHYDRATING BAGGED CLAY
36	Patent right	2528735	PRECISE THREE-DIMENSIONAL-POSITION DETECTING METHOD FOR PIPELINE
35	Patent right	2124657	PRELINING STRUCTURE OF TUNNEL AND FORMING METHOD THEREOF
34	Patent right	2120899	BANKING METHOD USING CLAY PACKED IN BAG
33	Patent right	2118490	METHOD AND DEVICE FOR DETECTING TOXIC MATERIAL IN WATER
32	Patent right	2108460	SOIL AND SAND CARRYING-OUT DEVICE FOR PNEUMATIC CAISSON
31	Patent right	2096035	MULTIPLE PACKER TYPE MEASURING METHOD FOR UNDERGROUND WATER PRESSURE
30	Patent right	2076550	TUNNEL EXCAVATING METHOD AND PRELINING CONSTRUCTION DEVICE
29	Patent right	2076549	PRELINING DEVICE FOR TUNNEL
28	Patent right	2076548	SLOT DRILLING DEVICE
27	Patent right	2066452	METHOD AND DEVICE FOR MEASURING DEGREE OF HARDENING OF GROUND BY USING ELECTROMAGNETIC WAVE
26	Patent right	2066451	METHOD FOR MEASURING DRY DENSITY OF EARTH BY ELECTROMAGNETIC WAVE
25	Patent right	2062390	LANDSLIDE MEASUREMENT METHOD AND DEVICE THEREOF
24	Patent right	2051676	POISON DETECTING APPARATUS AND WATER-QUALITY MONITORING SYSTEM USING THIS APPARATUS
23	Patent right	2050300	LEADING CYLINDER FOR SMALL APERTURE CONDUIT LINE EXCAVATOR AND SMALL APERTURE CONDUIT PROPELLING CONSTRUCTION IN USING IT
22	Patent right	2044421	TUNNEL PART SPREAD SHIELD METHOD AND DEVICE THEREOF AND GUIDE SEGMENT PIECE RELATED THERETO
21	Patent right	2043736	VIBRATION-ISOLATING BEARING FOR BRIDGE
20	Patent right	2042919	MEASUREMENT OF VOID WATER PRESSURE IN GROUND BY CONCURRENT FORMATION OF MULTISTAGE SEAL LAYER
19	Patent right	2040798	POROUS CERAMIC CARRIER FOR FIXING MICROORGANISM
18	Patent right	2040418	GUTTER PIPE CONSTRUCTED IN SOFT GROUND
17	Patent right	2038814	MULTIPLE SHIELD TUNNELING MACHINE
16	Patent right	2030914	MEASURING OF GAP WATER PRESSURE IN THE GROUND
15	Patent right	2030785	METHOD AND DEVICE FOR CONSTRUCTING BRANCH AND CONNECTION PART OF SHIELD TUNNEL AND ITS SEGMENT
14	Patent right	2028455	DRAINAGE REINFORCEMENT PILE
13	Patent right	2022445	METHOD FOR EFFICIENTLY TRANSPORTING, STORING AND INCINERATING ORGANIC SLUDGE
12	Patent right	2017695	DEVICE FOR CARRYING OUT EARTH AND SAND FOR USE WITH PNEUMATIC CAISSON
11	Patent right	2014941	MEASURING METHOD FOR PORE WATER PRESSURE IN GROUND BY FORMATION OF SPECIAL SEALANT LAYER
10	Patent right	1988093	SHIELD BACK-FILLING DEVICE AND METHOD
9	Patent right	1952466	METHOD AND APPARATUS FOR CONTROLLING PERFORMANCE OF BULLDOZER
8	Patent right	1930164	GROUND IMPROVEMENT WORK FOR PREVENTING LIQUEFACTION
7	Patent right	1928094	METHOD FOR DETECTING LANDSLIDE SURFACE
6	Patent right	1913893	REINFORCING PILE FOR DRAINAGE
5	Patent right	1908876	ANAEROBIC METHANE FERMENTATION METHOD
4	Patent right	1874084	SLOPE SURFACE REINFORCING EARTH CONSTRUCTION USING BAND-SHAPED STIFFENER
3	Patent right	1789999	PLACING OF DRAINAGE REINFORCING PILE
2	Patent right	1780644	ANAEROBIC DIGESTION OF SLUDGE
1	Patent right	1780643	ANAEROBIC DIGESTION OF SLUDGE

	Classification	Registration number	Title of invention
1	Design	1248231	Concrete body corrosion prevention plates

	Classification	Registration number	Title of invention
4	Trademark registration	5075876	ALiCC
3	Trademark registration	4995314	The International Centre for Water Hazard and Risk Management logo (Images only)
2	Trademark registration	4995313	The International Centre for Water Hazard and Risk Management logo (ICHARM)
1	Trademark registration	4935138	Aqua Restoration Research Center logo