Inventor

OSHIDA HIROYUKI

JP36 patents

⚠️ This page may combine multiple inventors who share the name “OSHIDA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OSHIDA HIROYUKI

NIPPON TELEGRAPH & TELEPHONE

Phase measurement method and signal processing device

Distributed vibration measuring device and method

Optical pulse reflectometry and optical pulse reflectometer

Optical pulse testing method and optical pulse testing device

Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method

Optical pulse reflectometer and optical pulse reflectometry

Optical fiber testing method and optical fiber testing device

Optical fiber evaluation method and optical fiber evaluation apparatus

Light intensity distribution measurement method and light intensity distribution measurement device

Optical pulse testing device and optical pulse testing method

Optical fiber test method and optical fiber test device

Brillouin optical sensing device and optical sensing method

Point cloud analysis device, method, and program

Water immersion detection device and water immersion detection method for detecting inundation of optical fiber

Several mode fiber test method and several mode fiber test device

Inundation detection system and inundation detection method

Aerial optical fiber cable inspection method, aerial optical fiber cable inspection device, and program

Test method and test device for mode field diameter

Measuring device and measuring method using tape core wire

Structure detection apparatus, structure detection method, and structure detection processing program

Fiber optic test methods, fiber optic test equipment, and programs

Information processing equipment, information processing methods, and programs

Permittivity measuring device and thickness measuring device

Phase measuring method and signal processing device

Vibration detection method with improved signal processing

Backscattering optical amplification device, optical pulse testing device, backscattering optical amplification method and optical pulse testing method

Phase measurement method, signal processing device, and program

Device for measuring optical frequency reflection and measurement method thereof

Power coupling coefficient measuring method and power coupling coefficient measuring device

Optical pulse test method and optical pulse test equipment

Optical fiber route search method, optical fiber route search device and program

Manhole position specification method and manhole position specification system

Point cloud analysis device, estimation device, point cloud analysis method, and program

Detection device, detection method and detection program for linear structure

NTT INC

Distributed acoustic sensing device and method

Vibration detection device and vibration detection method