P

Inventor

NOMURA MASARU

JP43 patents
⚠️ This page may combine multiple inventors who share the name “NOMURA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHARP KK

28 patents
US7050383B2May 23, 2006

Optical recording medium recorded with information in depth direction, and method and apparatus of reproduction therefrom

SHARP KK20 citations93
US6014354AJan 11, 2000

Tracking control device for optical pickup

SHARP KK26 citations93
US5301174AApr 5, 1994

Optical disk recording and reproducing apparatus

SHARP KK24 citations93
US5001732AMar 19, 1991

Track counter for optical disk

SHARP KK22 citations93
US6760299B1Jul 6, 2004

Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction

SHARP KK19 citations92
US6438098B1Aug 20, 2002

Optical recording medium, media tracking method and recording/reproducing apparatus

SHARP KK43 citations92
US6298024B1Oct 2, 2001

Device for identifying optical disc type based on density of radial information tracks thereon

SHARP KK27 citations92
US5872439AFeb 16, 1999

Motor control device

SHARP KK24 citations92
US5818651AOct 6, 1998

Motor control device for information recording and reproducing apparatus

SHARP KK24 citations92
US5642340AJun 24, 1997

Device for controlling focus of an optical disk apparatus

SHARP KK34 citations92
US5581521ADec 3, 1996

Device for controlling the motor of a recording and reproducing apparatus

SHARP KK33 citations91
US4849953AJul 18, 1989

Tracking circuit for an optical information recording and reproducing apparatus

SHARP KK21 citations82
US7072251B2Jul 4, 2006

Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction

SHARP KK6 citations74
US5335214AAug 2, 1994

Optical recording track access driving apparatus

SHARP KK14 citations74
US5311490AMay 10, 1994

Access controlling device for use in an optical disk drive

SHARP KK16 citations74
US5101386AMar 31, 1992

Track jumping apparatus for an optical disk pickup

SHARP KK19 citations74
US5084848AJan 28, 1992

Feedback control apparatus in an optical recording and reproducing device

SHARP KK10 citations74
US4782476ANov 1, 1988

Objective lens-driving unit

SHARP KK8 citations74
US9698710B2Jul 4, 2017

Solar energy utilization system

SHARP KK2 citations72
US9660513B2May 23, 2017

Switching device

SHARP KK4 citations72
US9088170B2Jul 21, 2015

Electric power conversion apparatus, power storage system and power storage method

SHARP KK5 citations72
US5553040ASep 3, 1996

Offset compensation apparatus for tracking error signal of optical recording reproduction apparatus

SHARP KK11 citations71
US7113460B2Sep 26, 2006

Optical disk having pits of different depths formed therein, optical disk reproducing apparatus for reproducing the optical disk, and method of tracking the optical disk

SHARP KK3 citations63
US5107472AApr 21, 1992

Track access and laser beam alignment system for an optical recording and reproduction apparatus

SHARP KK4 citations63
US4864125ASep 5, 1989

Extra magnetic field positioning apparatus

SHARP KK3 citations61
US7580329B2Aug 25, 2009

Optical recording medium recorded with information in depth direction, and method and apparatus of reproduction therefrom

SHARP KK1 citations52
US9998019B2Jun 12, 2018

DC-DC converter, and solar power controller and mobile body using same

SHARP KK0 citations42
US9793793B2Oct 17, 2017

Power factor correction circuit and power supply device

SHARP KK0 citations41

NOMURA MASARU

4 patents

KOMIYA KENJI

3 patents

SONY CORP

2 patents

YOSHIMINE TAKASHI

1 patent

FUJITSU LTD

1 patent

SHIOMI TAKESHI

1 patent

IWATA HIROSHI

1 patent

NIDEC CORP

1 patent

KIMOTO KENJI

1 patent