Inventor
ICHIKAWA TADASHI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYODA CHUO KENKYUSHO KK
8 patentsUS5587785ADec 24, 1996
Laser doppler velocimeter
TOYODA CHUO KENKYUSHO KK109 citations98
US5907426AMay 25, 1999
Stabilizing device for optical modulator
TOYODA CHUO KENKYUSHO KK41 citations92
US5278499AJan 11, 1994
Fiberoptic apparatus for measuring electromagnetic field intensity with an electro-optic sensor
TOYODA CHUO KENKYUSHO KK39 citations92
US5210407AMay 11, 1993
Electric field intensity detecting device having a condenser-type antenna and a light modulator
TOYODA CHUO KENKYUSHO KK34 citations92
US5969341AOct 19, 1999
Optical integrated voltage sensor for optically measuring the magnitude of a voltage
TOYODA CHUO KENKYUSHO KK19 citations84
US6268585B1Jul 31, 2001
Method of forming groove by laser
TOYODA CHUO KENKYUSHO KK13 citations74
US5227715AJul 13, 1993
Apparatus for measuring electromagnetic field intensity using dual polarized light beams
TOYODA CHUO KENKYUSHO KK20 citations74
US5627920AMay 6, 1997
Optical-optical modulators
TOYODA CHUO KENKYUSHO KK8 citations73
TOYOTA CHUO KENKYUSHO KK
5 patentsUS9817121B2Nov 14, 2017
Radar apparatus and method of determining sign of velocity
TOYOTA CHUO KENKYUSHO KK29 citations94
US9939577B2Apr 10, 2018
Diffraction structure, diffraction grating, diffraction grating array, optical phased array, optical modulator, optical filter, laser source
TOYOTA CHUO KENKYUSHO KK34 citations93
US10209603B2Feb 19, 2019
Switching optical antenna, switching optical antenna array, and optical scanning device
TOYOTA CHUO KENKYUSHO KK2 citations73
US10739457B1Aug 11, 2020
Laser radar, and light receiving method of laser radar
TOYOTA CHUO KENKYUSHO KK1 citations62
US6973234B2Dec 6, 2005
Optical circuit for condensing laser beams, and light source device
TOYOTA CHUO KENKYUSHO KK6 citations61