P

Inventor

IMAGAWA SEIJI

JP10 patents
⚠️ This page may combine multiple inventors who share the name “IMAGAWA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IMAGAWA SEIJI

4 patents
US8223602B2Jul 17, 2012

Optical disc drive

IMAGAWA SEIJI1 citations47
US8547809B2Oct 1, 2013

Optical disk device

IMAGAWA SEIJI0 citations38
US8634281B2Jan 21, 2014

Optical disc device

IMAGAWA SEIJI0 citations36
US8559285B2Oct 15, 2013

Optical disc apparatus

IMAGAWA SEIJI0 citations36

HITACHI LTD

3 patents
US6657666B1Dec 2, 2003

Method and apparatus for recording image information

HITACHI LTD39 citations92
US7933175B2Apr 26, 2011

Optical disk drive

HITACHI LTD2 citations60
US12361592B2Jul 15, 2025

Ranging sensor calibration system and ranging sensor calibration method

HITACHI LTD0 citations49

MAXELL LTD

2 patents
US10613826B2Apr 7, 2020

Head-mounted display system and operating method for head-mounted display device

MAXELL LTD2 citations70
US10877298B2Dec 29, 2020

Head-mounted display device

MAXELL LTD1 citations59

KATAOKA TAKEYOSHI

1 patent
US8325574B2Dec 4, 2012

Optical disc device

KATAOKA TAKEYOSHI0 citations32