Hiroharu Sakai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical disc drive
- Patent number 8,665,681
- Issue date Mar 4, 2014
- Hitachi-LG Data Storage, Inc.
- Akira Kitayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and control method of optical disc
- Patent number 8,605,563
- Issue date Dec 10, 2013
- Hitachi-LG Data Storage, Inc.
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and tracking servo control circuit therefor
- Patent number 8,406,100
- Issue date Mar 26, 2013
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc drive and method of controlling laser light power in o...
- Patent number 8,335,142
- Issue date Dec 18, 2012
- Hitachi-LG Data Storage, Inc.
- Hajime Nishimura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc drive and method of controlling power of laser light i...
- Patent number 8,270,276
- Issue date Sep 18, 2012
- Hitachi-LG Data Storage, Inc.
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and disc identification method
- Patent number 8,259,548
- Issue date Sep 4, 2012
- Hitachi-LG Data Storage, Inc.
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and playing method of optical disc
- Patent number 8,243,576
- Issue date Aug 14, 2012
- Hitachi-LG Data Storage, Inc.
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc drive and method of controlling the same
- Patent number 8,189,447
- Issue date May 29, 2012
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and data reproduction method for the same
- Patent number 8,165,006
- Issue date Apr 24, 2012
- Hitachi-LG Data Storage, Inc.
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc recording/reproducing apparatus and focus-servo method...
- Patent number 7,944,785
- Issue date May 17, 2011
- Hitachi-LG Data Storage, Inc.
- Toru Kawashima
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus method for compensating recording power for...
- Patent number 7,733,748
- Issue date Jun 8, 2010
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Write power determining method and write power control method for o...
- Patent number 7,298,679
- Issue date Nov 20, 2007
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk recording/reproducing apparatus with reduced resume time
- Patent number 7,206,269
- Issue date Apr 17, 2007
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk read/write apparatus and writing method
- Patent number 7,102,975
- Issue date Sep 5, 2006
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DISC DRIVE AND METHOD OF CONTROLLING LASER LIGHT POWER IN O...
- Publication number 20120008477
- Publication date Jan 12, 2012
- Hajime NISHIMURA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DRIVE AND METHOD OF CONTROLLING POWER OF LASER LIGHT I...
- Publication number 20120008478
- Publication date Jan 12, 2012
- Shuichi Minamiguchi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DEVICE AND TRACKING SERVO CONTROL CIRCUIT THEREFOR
- Publication number 20110216638
- Publication date Sep 8, 2011
- Hiroharu SAKAI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME
- Publication number 20110205872
- Publication date Aug 25, 2011
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME
- Publication number 20110205871
- Publication date Aug 25, 2011
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DEVICE AND CONTROL METHOD OF OPTICAL DISC
- Publication number 20110161994
- Publication date Jun 30, 2011
- Shuichi MINAMIGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DEVICE AND DATA REPRODUCTION METHOD FOR THE SAME
- Publication number 20110158063
- Publication date Jun 30, 2011
- Shuichi MINAMIGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DEVICE AND DISC IDENTIFICATION METHOD
- Publication number 20110158074
- Publication date Jun 30, 2011
- Shuichi MINAMIGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC DEVICE AND PLAYING METHOD OF OPTICAL DISC
- Publication number 20110158068
- Publication date Jun 30, 2011
- Shuichi MINAMIGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
Optical Disc Apparatus and Method for Discriminating Optical Disc
- Publication number 20090201775
- Publication date Aug 13, 2009
- Hitachi-LG Data Storage, Inc.
- Hideaki TANAKA
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc drive
- Publication number 20090103406
- Publication date Apr 23, 2009
- Hitachi-LG Data Storage, Inc.
- Akira Kitayama
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISK APPARATUS AND METHOD FOR COMPENSATING RECORDING POWER...
- Publication number 20080112286
- Publication date May 15, 2008
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc recording/reproducing apparatus and a focus-servo meth...
- Publication number 20070121443
- Publication date May 31, 2007
- Toru Kawashima
- G11 - INFORMATION STORAGE
Information Patent Application
Write power determining method and write power control method for o...
- Publication number 20050094512
- Publication date May 5, 2005
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk read/write apparatus and writing method
- Publication number 20040145977
- Publication date Jul 29, 2004
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recording/reproducing apparatus and optical disk recor...
- Publication number 20040141435
- Publication date Jul 22, 2004
- Hitachi-LG Data Storge, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE

Hiroharu Sakai

Person

Patents Grantslast 30 patents

Optical disc drive

Optical disc device and control method of optical disc

Optical disc device and tracking servo control circuit therefor

Optical disc drive and method of controlling laser light power in o...

Optical disc drive and method of controlling power of laser light i...

Optical disc device and disc identification method

Optical disc device and playing method of optical disc

Optical disc drive and method of controlling the same

Optical disc device and data reproduction method for the same

Optical disc recording/reproducing apparatus and focus-servo method...

Optical disk apparatus method for compensating recording power for...

Write power determining method and write power control method for o...

Optical disk recording/reproducing apparatus with reduced resume time

Optical disk read/write apparatus and writing method

Patents Applicationslast 30 patents

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING LASER LIGHT POWER IN O...

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING POWER OF LASER LIGHT I...

OPTICAL DISC DEVICE AND TRACKING SERVO CONTROL CIRCUIT THEREFOR

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME

OPTICAL DISC DRIVE AND METHOD OF CONTROLLING THE SAME

OPTICAL DISC DEVICE AND CONTROL METHOD OF OPTICAL DISC

OPTICAL DISC DEVICE AND DATA REPRODUCTION METHOD FOR THE SAME

OPTICAL DISC DEVICE AND DISC IDENTIFICATION METHOD

OPTICAL DISC DEVICE AND PLAYING METHOD OF OPTICAL DISC

Optical Disc Apparatus and Method for Discriminating Optical Disc

Optical disc drive

OPTICAL DISK APPARATUS AND METHOD FOR COMPENSATING RECORDING POWER...

Optical disc recording/reproducing apparatus and a focus-servo meth...

Write power determining method and write power control method for o...

Optical disk read/write apparatus and writing method

Optical disk recording/reproducing apparatus and optical disk recor...