P

Inventor

YAMAZAKI KAZUYOSHI

JP51 patents
⚠️ This page may combine multiple inventors who share the name “YAMAZAKI KAZUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAZAKI KAZUYOSHI

14 patents
US8295145B2Oct 23, 2012

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI2 citations62
US8295144B2Oct 23, 2012

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI2 citations62
US8223613B2Jul 17, 2012

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI2 citations62
US8547815B2Oct 1, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations51
US8254237B2Aug 28, 2012

Diffraction grating, optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations51
US8737180B2May 27, 2014

Optical pickup device and optical disc apparatus for recording and reproducing information on and from optical disc including plurality of recording layers

YAMAZAKI KAZUYOSHI0 citations41
US8605559B2Dec 10, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8565059B2Oct 22, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8542560B2Sep 24, 2013

Diffraction grating and optical pickup device

YAMAZAKI KAZUYOSHI0 citations41
US8531930B2Sep 10, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8520486B2Aug 27, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8509040B2Aug 13, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8488425B2Jul 16, 2013

Optical pickup device and optical disc apparatus

YAMAZAKI KAZUYOSHI0 citations41
US8094542B2Jan 10, 2012

Optical pickup device, optical disc device, and diffraction grating

YAMAZAKI KAZUYOSHI0 citations41

HITACHI MEDIA ELECTRON KK

11 patents
US8040780B2Oct 18, 2011

Optical pickup device and optical disc apparatus

HITACHI MEDIA ELECTRON KK7 citations83
US8737184B2May 27, 2014

Holographic optical pickup device, optical information recording and reproducing device, and method of recording and reproducing optical information

HITACHI MEDIA ELECTRON KK5 citations73
US7567495B2Jul 28, 2009

Optical pickup apparatus and optical disc apparatus using same

HITACHI MEDIA ELECTRON KK5 citations73
US7948841B2May 24, 2011

Diffraction grating, optical pickup device and optical disc apparatus

HITACHI MEDIA ELECTRON KK0 citations52
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
US8830810B2Sep 9, 2014

Holographic optical pickup device, optical information recording and reproducing device, and method of recording and reproducing optical information

HITACHI MEDIA ELECTRON KK0 citations42
US8937855B2Jan 20, 2015

Holographic optical pickup device, optical information recording and reproducing device, and method of reproducing optical information, having angular variable element arrangements for changing a light angle

HITACHI MEDIA ELECTRON KK0 citations41
US8804474B2Aug 12, 2014

Optical information recording/reproducing apparatus

HITACHI MEDIA ELECTRON KK0 citations41
US8036091B2Oct 11, 2011

Optical pick-up and optical information recording and reproducing apparatus

HITACHI MEDIA ELECTRON KK0 citations37

TOKYO ELECTRON LTD

7 patents

HITACHI-LG DATA STORAGE INC

4 patents

HITACHI LTD

4 patents

HITACHI CONSUMER ELECTRONICS

3 patents

MAXELL LTD

2 patents

MOMENTIVE PERFORMANCE MAT INC

1 patent

HITACHI ASTEMO LTD

1 patent

HITACHI AUTOMOTIVE SYSTEMS LTD

1 patent

HITACHI LG DATA STORAGE INC

1 patent

OHNISHI KUNIKAZU

1 patent

Showing the top 50 of 51 patents by PatentIndex Score.