Akihiko Okamoto

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Information processing method for achieving optimization of recordi...
- Patent number 6,967,913
- Issue date Nov 22, 2005
- Ricoh Company, Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc cartridge which protects a disc therein from ambient l...
- Patent number 6,898,797
- Issue date May 24, 2005
- Ricoh Company, Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Information processor, information processing method and informatio...
- Patent number 6,877,075
- Issue date Apr 5, 2005
- Ricoh Company, Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information memory medium and display recording method usin...
- Patent number 6,660,452
- Issue date Dec 9, 2003
- Ricoh Company, Ltd.
- Hiroko Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data storage medium capable of reversibly displaying inform...
- Patent number 6,329,035
- Issue date Dec 11, 2001
- Ricoh Company, Ltd.
- Hiroko Iwasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk apparatus including an inner cover and an outer cover with lat...
- Patent number 6,198,712
- Issue date Mar 6, 2001
- Ricoh Company Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording and reproducing apparatus
- Patent number 6,137,760
- Issue date Oct 24, 2000
- Ricoh Co., Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive unit having improved shutter mechanism
- Patent number 5,912,870
- Issue date Jun 15, 1999
- Ricoh Company, Ltd.
- Tetsuo Kanno
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Disk drive unit having improved shutter mechanism
- Patent number 5,787,063
- Issue date Jul 28, 1998
- Richoh Company, Ltd.
- Tetsuo Kanno
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical disk drive unit
- Patent number 5,351,228
- Issue date Sep 27, 1994
- Ricoh Company Ltd.
- Tetsuo Kanno
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk drive unit with a sealing type bearing member
- Patent number 5,301,179
- Issue date Apr 5, 1994
- Ricoh Company, Ltd.
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device with dual-mode drive mechanism
- Patent number 5,070,494
- Issue date Dec 3, 1991
- Ricoh Company, Ltd.
- Masami Emoto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Optical disc device
- Publication number 20050270928
- Publication date Dec 8, 2005
- Hiroki Sugahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Optical disk recording method, information processing method, optic...
- Publication number 20020191506
- Publication date Dec 19, 2002
- Akihiko Okamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information memory medium and display recording method usin...
- Publication number 20020142236
- Publication date Oct 3, 2002
- Hiroko Iwasaki
- G11 - INFORMATION STORAGE

Akihiko Okamoto

Person

Patents Grantslast 30 patents

Information processing method for achieving optimization of recordi...

Optical disc cartridge which protects a disc therein from ambient l...

Information processor, information processing method and informatio...

Optical information memory medium and display recording method usin...

Optical data storage medium capable of reversibly displaying inform...

Disk apparatus including an inner cover and an outer cover with lat...

Information recording and reproducing apparatus

Disk drive unit having improved shutter mechanism

Disk drive unit having improved shutter mechanism

Optical disk drive unit

Optical disk drive unit with a sealing type bearing member

Optical pickup device with dual-mode drive mechanism

Patents Applicationslast 30 patents

Optical disc device

Optical disk recording method, information processing method, optic...

Optical information memory medium and display recording method usin...