Nobuo Akahira

Person

Otokoyama Kanaburi, Yawata-shi, Kyoto, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Code conversion method and apparatus, code recording medium, code r...
- Patent number RE39771
- Issue date Aug 14, 2007
- Matsushita Electric Industrial Co., Ltd.
- Yoshiharu Kobayashi
- 341 - Coded data generation or conversion
Information Patent Grant
Multi-layer optical information recording medium with pits or grooves
- Patent number 7,136,349
- Issue date Nov 14, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Recording/reproducing apparatus with optical path correction system
- Patent number 7,123,570
- Issue date Oct 17, 2006
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium manfacturing method therefor,...
- Patent number 7,116,631
- Issue date Oct 3, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical information recording medium and optical information record...
- Patent number 7,095,705
- Issue date Aug 22, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording/reproducing apparatus for optical information recording m...
- Patent number 7,075,870
- Issue date Jul 11, 2006
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Akiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-layer optical information recording medium with pits or grooves
- Patent number 7,038,999
- Issue date May 2, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
Information Patent Grant
Optical information recording medium and optical information record...
- Patent number 6,975,579
- Issue date Dec 13, 2005
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium with plural information layers
- Patent number 6,771,587
- Issue date Aug 3, 2004
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Recording and reproducing method for optical information recording...
- Patent number 6,744,724
- Issue date Jun 1, 2004
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and reproducing method of optical information recording m...
- Patent number 6,707,776
- Issue date Mar 16, 2004
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording and reproducing system with overwrite...
- Patent number 6,697,313
- Issue date Feb 24, 2004
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording and reproducing system with overwrite...
- Patent number 6,683,739
- Issue date Jan 27, 2004
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium and optical information record...
- Patent number 6,667,937
- Issue date Dec 23, 2003
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium having dual recording layers
- Patent number 6,611,491
- Issue date Aug 26, 2003
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Recording and reproducing method for optical information recording...
- Patent number 6,587,420
- Issue date Jul 1, 2003
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium and optical information record...
- Patent number 6,532,209
- Issue date Mar 11, 2003
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording and reproducing system with overwrite...
- Patent number 6,487,151
- Issue date Nov 26, 2002
- Matsushita Electric Industrial Co. Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium comprising a first layer havin...
- Patent number 6,456,584
- Issue date Sep 24, 2002
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording medium, manufacturing method therefor...
- Patent number 6,434,095
- Issue date Aug 13, 2002
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
OPTICAL INFORMATION RECORDING MEDIUM HAVING CONVEX AND CONCAVE PORT...
- Patent number 6,411,592
- Issue date Jun 25, 2002
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording and reproducing apparatus for multipl...
- Patent number 6,226,239
- Issue date May 1, 2001
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording disk and method for manufacturing the same
- Patent number 6,146,734
- Issue date Nov 14, 2000
- Matsushita Electric Industrial Co.
- Eiji Ohno
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Optical information recording disk and method for manufacturing the...
- Patent number 6,033,535
- Issue date Mar 7, 2000
- Matsushita Electric Industrial Co., Ltd.
- Eiji Ohno
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Optical disk with stop-pulse generating means in a guide groove
- Patent number 6,031,814
- Issue date Feb 29, 2000
- Matsushita Electric Industrial Co., Ltd.
- Ken'ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing optical information recording medium
- Patent number 6,027,594
- Issue date Feb 22, 2000
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Data storage apparatus
- Patent number 5,956,308
- Issue date Sep 21, 1999
- Matsushita Electric Industrial Co., Ltd.
- Nobuo Akahira
- G11 - INFORMATION STORAGE
Information Patent Grant
Code conversion method and apparatus, code recording medium, code r...
- Patent number 5,898,394
- Issue date Apr 27, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yoshiharu Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of measuring a film thickness of multilayer thin film
- Patent number 5,883,720
- Issue date Mar 16, 1999
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Akiyama
- G01 - MEASURING TESTING
Information Patent Grant
Optical information recording medium and optical information record...
- Patent number 5,811,217
- Issue date Sep 22, 1998
- Matsushita Electric Industrial Co., Ltd.
- Nobuo Akahira
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Disk Cartridge
- Publication number 20070291413
- Publication date Dec 20, 2007
- Matsushita Electric Industrial Co., Ltd.
- Hiroya Kondou
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium manufacturing method therefor,...
- Publication number 20060140075
- Publication date Jun 29, 2006
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical information recording medium and optical information record...
- Publication number 20050163036
- Publication date Jul 28, 2005
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Application
Recording medium, information recording apparatus, information reco...
- Publication number 20050141862
- Publication date Jun 30, 2005
- PIONEER CORPORATION
- Takao Sawabe
- G11 - INFORMATION STORAGE
Information Patent Application
Recording/reproducing apparatus for optical information recording m...
- Publication number 20050135218
- Publication date Jun 23, 2005
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Akiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Recording/reproducing apparatus for optical information recording m...
- Publication number 20050094532
- Publication date May 5, 2005
- Matsushita Electric Industrial Co., Ltd.
- Tetsuya Akiyama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium manufacturing method therefor,...
- Publication number 20040223445
- Publication date Nov 11, 2004
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical information recording medium and optical information record...
- Publication number 20040090885
- Publication date May 13, 2004
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium, manufacturing method therefor...
- Publication number 20030206504
- Publication date Nov 6, 2003
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Recording and reproducing method for optical information recording...
- Publication number 20030198176
- Publication date Oct 23, 2003
- Matsushita Electric Industrial Co., Ltd.
- Ken?apos;Ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording and reproducing system with overwrite...
- Publication number 20030123365
- Publication date Jul 3, 2003
- Matsushita Electric Industrial Co., Ltd.
- Ken?apos;ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Application
Recording and reproducing method of optical information recording m...
- Publication number 20030107968
- Publication date Jun 12, 2003
- Matsushita Electric Industrial Co., Ltd.
- Ken?apos;ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium and optical information record...
- Publication number 20030099169
- Publication date May 29, 2003
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording and reproducing system with overwrite...
- Publication number 20030063541
- Publication date Apr 3, 2003
- Matsushita Electric Industrial Co., Ltd.
- Ken?apos;ichi Nagata
- G11 - INFORMATION STORAGE
Information Patent Application
Optical information recording medium and reproducing apparatus with...
- Publication number 20020150032
- Publication date Oct 17, 2002
- Matsushita Electric Industrial Co., Ltd.
- Kenichi Nishiuchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical information recording medium and optical information record...
- Publication number 20020114236
- Publication date Aug 22, 2002
- Kenichi Nishiuchi
- G11 - INFORMATION STORAGE

Nobuo Akahira

Person

Patents Grantslast 30 patents

Code conversion method and apparatus, code recording medium, code r...

Multi-layer optical information recording medium with pits or grooves

Recording/reproducing apparatus with optical path correction system

Optical information recording medium manfacturing method therefor,...

Optical information recording medium and optical information record...

Recording/reproducing apparatus for optical information recording m...

Multi-layer optical information recording medium with pits or grooves

Optical information recording medium and optical information record...

Optical information recording medium with plural information layers

Recording and reproducing method for optical information recording...

Recording and reproducing method of optical information recording m...

Optical information recording and reproducing system with overwrite...

Optical information recording and reproducing system with overwrite...

Optical information recording medium and optical information record...

Optical recording medium having dual recording layers

Recording and reproducing method for optical information recording...

Optical information recording medium and optical information record...

Optical information recording and reproducing system with overwrite...

Optical information recording medium comprising a first layer havin...

Optical information recording medium, manufacturing method therefor...

OPTICAL INFORMATION RECORDING MEDIUM HAVING CONVEX AND CONCAVE PORT...

Optical information recording and reproducing apparatus for multipl...

Optical recording disk and method for manufacturing the same

Optical information recording disk and method for manufacturing the...

Optical disk with stop-pulse generating means in a guide groove

Method of manufacturing optical information recording medium

Data storage apparatus

Code conversion method and apparatus, code recording medium, code r...

Method of measuring a film thickness of multilayer thin film

Optical information recording medium and optical information record...

Patents Applicationslast 30 patents

Disk Cartridge

Optical information recording medium manufacturing method therefor,...

Optical information recording medium and optical information record...

Recording medium, information recording apparatus, information reco...

Recording/reproducing apparatus for optical information recording m...

Recording/reproducing apparatus for optical information recording m...

Optical information recording medium manufacturing method therefor,...

Optical information recording medium and optical information record...

Optical information recording medium, manufacturing method therefor...

Recording and reproducing method for optical information recording...

Optical information recording and reproducing system with overwrite...

Recording and reproducing method of optical information recording m...

Optical information recording medium and optical information record...

Optical information recording and reproducing system with overwrite...

Optical information recording medium and reproducing apparatus with...

Optical information recording medium and optical information record...