Inventor
KAWAMURA TOMOTO
JP44 patents
⚠️ This page may combine multiple inventors who share the name “KAWAMURA TOMOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI MEDIA ELECTRON KK
11 patentsUS7706220B2Apr 27, 2010
Photodetector, diffraction grating, optical pickup and optical disc apparatus
HITACHI MEDIA ELECTRON KK6 citations74
US7567495B2Jul 28, 2009
Optical pickup apparatus and optical disc apparatus using same
HITACHI MEDIA ELECTRON KK5 citations73
US7948858B2May 24, 2011
Optical information processing apparatus, optical pick-up device and optical recording disc system
HITACHI MEDIA ELECTRON KK4 citations59
US7502303B2Mar 10, 2009
Optical information processing apparatus, optical pick-up device and optical recording disc system
HITACHI MEDIA ELECTRON KK3 citations59
US7936658B2May 3, 2011
Photodetector, diffraction grating, optical pickup and optical disc apparatus
HITACHI MEDIA ELECTRON KK0 citations52
US8014258B2Sep 6, 2011
Optical pickup having radially arranged lenses in a low profile construction
HITACHI MEDIA ELECTRON KK0 citations51
US7978587B2Jul 12, 2011
Optical pickup apparatus and optical disc apparatus with a single beam system
HITACHI MEDIA ELECTRON KK0 citations51
US7940630B2May 10, 2011
Optical pick up apparatus with a single beam system and having a diffraction grating
HITACHI MEDIA ELECTRON KK0 citations51
US7885166B2Feb 8, 2011
Optical pick up apparatus with a single beam system and having a diffraction grating
HITACHI MEDIA ELECTRON KK0 citations51
US7733760B2Jun 8, 2010
Optical pickup having radially arranged lenses in a low profile construction
HITACHI MEDIA ELECTRON KK0 citations51
US7876659B2Jan 25, 2011
Optical pickup and optical drive
HITACHI MEDIA ELECTRON KK0 citations39
HITACHI LTD
7 patentsUS7327661B2Feb 5, 2008
Optical pickup and optical information recording apparatus using the same
HITACHI LTD14 citations92
US7590043B2Sep 15, 2009
Optical pickup and optical information recording apparatus using the same
HITACHI LTD2 citations63
US10413187B2Sep 17, 2019
Optical scanning device, imaging device, and TOF type analyzer
HITACHI LTD0 citations52
US7911915B2Mar 22, 2011
Optical pickup and optical information recording apparatus using the same
HITACHI LTD0 citations52
US7724626B2May 25, 2010
Optical pickup and optical information recording apparatus using the same
HITACHI LTD0 citations52
US7697394B2Apr 13, 2010
Optical pickup and optical information recording apparatus using the same
HITACHI LTD0 citations52
US7697393B2Apr 13, 2010
Optical pickup and optical information recording apparatus using the same
HITACHI LTD0 citations52
HITACHI LG DATA STORAGE INC
6 patentsUS11143872B2Oct 12, 2021
Waveguide and video image display device
HITACHI LG DATA STORAGE INC2 citations73
US10078236B2Sep 18, 2018
Dimmer and video display device using the same
HITACHI LG DATA STORAGE INC5 citations73
US9927613B2Mar 27, 2018
Image display apparatus and head mounted display
HITACHI LG DATA STORAGE INC2 citations73
US11543648B2Jan 3, 2023
Virtual image projection device
HITACHI LG DATA STORAGE INC0 citations62
US11493759B2Nov 8, 2022
Hologram light guide plate with plurality of layers and head mount display using hologram light guide plate
HITACHI LG DATA STORAGE INC0 citations49
US10466490B2Nov 5, 2019
Video projection device and head mounted display using the same
HITACHI LG DATA STORAGE INC0 citations41
KAWAMURA TOMOTO
6 patentsUS8169880B2May 1, 2012
Optical pickup having radially arranged lenses in a low profile construction
KAWAMURA TOMOTO1 citations61
US8498190B2Jul 30, 2013
Optical head using beam dividing element
KAWAMURA TOMOTO0 citations50
US8593928B2Nov 26, 2013
Optical head and optical drive device
KAWAMURA TOMOTO1 citations49
US8144565B2Mar 27, 2012
Optical head and apparatus using the same
KAWAMURA TOMOTO0 citations40
US8537651B2Sep 17, 2013
Optical disc device
KAWAMURA TOMOTO0 citations39
US8243575B2Aug 14, 2012
Optical head
KAWAMURA TOMOTO0 citations39
HITACHI HIGH TECH CORP
4 patentsUS11754493B2Sep 12, 2023
Broadband light source device and biochemical analyzing device
HITACHI HIGH TECH CORP0 citations62
US11906420B2Feb 20, 2024
Light source and biochemical analyzer
HITACHI HIGH TECH CORP0 citations61
US11971346B2Apr 30, 2024
Biological sample detection device
HITACHI HIGH TECH CORP0 citations46
US12196673B2Jan 14, 2025
Defect inspection apparatus and defect inspection method
HITACHI HIGH TECH CORP0 citations44
MAXELL LTD
3 patentsUS10365490B2Jul 30, 2019
Head-mounted display, head-up display and picture displaying method
MAXELL LTD4 citations73
US11880909B2Jan 23, 2024
AR display apparatus and AR display method
MAXELL LTD1 citations62
US10445577B2Oct 15, 2019
Information display method and information display terminal
MAXELL LTD0 citations41