List of patents

Borehole core sampling device equipped with core bottom end cutting mechanism

Borehole core sampling device equipped with core rotation prevention mechanism

Hydraulic fracturing test equipment

Sampling method by HQCS-MS

Soil sampling system and its sampling method

Method of extracting cores from bedrock

Method of geological excavation and surveying

Borehole fixation device

Seismic observation wells, methods of installing seismometers in seismic observation wells

Methods of installing seismometers in seismic observation wells

Drive-in type water level observation device

Ground surface deformation measurement method using synthetic aperture radar

Non-powered displacement detection sensor using piezoelectric element "Bolt-type strain detector"

Non-powered displacement detection sensor using piezoelectric element "Limit-type displacement detector"

Method of evaluating collapse risk for unstable rock mass

Radioactivity measuring device and radioactivity measuring method

Geotechnical surveying equipment, tools for geotechnical surveying equipment, and methods using them

Method for shallow landslide detection and surface inclinometer used for the method

Method for rock crushing management and sensors used for the method

[Offshore microtremor array] Method of position measurement for microtremor sensors installed in the offshore area

Method of system synchronization for vehicle-mounted ground penetrating radar measurement devices

Minesweeping magnetic field detector and minesweeper

Elastic wave tomography method between wells using surface seismic sources

Exploration system (noise elimination method in airborne electromagnetic survey method)

Trailing multi-channel surface wave survey equipment

Geological exploration equipment

Seafloor exploration device and seafloor exploration method

Distributed exploration system for obtaining underground electrical characteristics and distributed exploration method using the system

Efficient resistivity measurement method by multi-point simultaneous electric current supply system using pseudo-noise signal as energization waveform

Hybrid surface wave exploration method and hybrid surface wave exploration system

Exploration method of underwater ground

Geological exploration method

Seafloor tremor probe

Coherent noise identification method and buried pipe location detection method

In-situ remediation method for contaminated soil

Permeability test method and equipment using a two-chamber syringe pump

Triaxial test equipment (smart triaxial)

Complex permittivity measuring device and complex permittivity measuring method

Permittivity estimation device and permittivity estimation method (2018)

Permittivity estimation device and permittivity estimation method (2020)

Evaluation method and evaluation device for equivalent sampling signal

Liquefaction potential sounding piezo drive cone (PDC)

iPDC with improved Nd value accuracy (intelligent PDC)

Dynamic weight sounding (DWS method)

Ground anchor tension non-destructive measurement method by vibration method

Tree diagnosis image generation device and tree diagnosis image generation method

Tree diagnostic device and tree diagnostic method

Display system for driving lane information data

Operation control system, operation control method and operation control program

Monitoring method and monitoring system for landslide disaster