Masaaki Matsumaru

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical disc medium having a system information recording area of l...
- Patent number 7,355,957
- Issue date Apr 8, 2008
- NEC Corporation
- Yutaka Yamanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk, disk device and track center detection method
- Patent number 6,987,714
- Issue date Jan 17, 2006
- Kabushiki Kaisha Toshiba
- Kazuo Watabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium, information recording apparatus, and...
- Patent number 6,741,546
- Issue date May 25, 2004
- Kabushiki Kaisha Toshiba
- Kazuo Watabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk and method of manufacturing the same
- Patent number 6,026,072
- Issue date Feb 15, 2000
- Kabushiki Kaisha Toshiba
- Kozo Taira
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk having a format condition information drive
- Patent number 5,959,962
- Issue date Sep 28, 1999
- Kabushiki Kaisha Toshiba
- Masaaki Matsumaru
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk and optical information reproducing apparatus
- Patent number 5,809,003
- Issue date Sep 15, 1998
- Kabushiki Kaisha Toshiba
- Kozo Taira
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for recording information on a primary optical disk to ma...
- Patent number 5,740,138
- Issue date Apr 14, 1998
- Kabushiki Kaisha Toshiba
- Isao Hoshino
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MASTER RECORDING APPARATUS, MASTER RECORDING METHOD, MASTER FOR STA...
- Publication number 20090268580
- Publication date Oct 29, 2009
- Kabushiki Kaisha Toshiba
- Keiichiro YUSU
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
MASTER RECORDING APPARATUS AND MASTER RECORDING METHOD
- Publication number 20090196148
- Publication date Aug 6, 2009
- Kabushiki Kaisha Toshiba
- Keiichiro YUSU
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC, OPTICAL DISC REPRODUCING APPARATUS AND OPTICAL DISC R...
- Publication number 20080159117
- Publication date Jul 3, 2008
- Kabushiki Kaisha Toshiba
- Ryosuke YAMAMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
INFORMATION RECORDING MEDIUM AND DISC APPARATUS
- Publication number 20080013440
- Publication date Jan 17, 2008
- Ryosuke YAMAMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
INFORMATION RECORDING MEDIUM AND DISC APPARATUS
- Publication number 20080002561
- Publication date Jan 3, 2008
- Masaaki MATSUMARU
- G11 - INFORMATION STORAGE
Information Patent Application
INFORMATION RECORDING MEDIUM AND DISC APPARATUS
- Publication number 20080002563
- Publication date Jan 3, 2008
- Ryosuke YAMAMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk and optical disk device
- Publication number 20070217319
- Publication date Sep 20, 2007
- Noritake Oomachi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk and optical disk apparatus
- Publication number 20070217321
- Publication date Sep 20, 2007
- Noritake Oomachi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc medium having a system information recording area of l...
- Publication number 20040257955
- Publication date Dec 23, 2004
- Yutaka Yamanaka
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium, information recording/reproducing met...
- Publication number 20040196746
- Publication date Oct 7, 2004
- Akihito Ogawa
- G11 - INFORMATION STORAGE
Information Patent Application
Disk, disk device and track center detection method
- Publication number 20020154584
- Publication date Oct 24, 2002
- Kazuo Watabe
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium, information recording apparatus, and...
- Publication number 20020114228
- Publication date Aug 22, 2002
- Kazuo Watabe
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc on which pre-pits are recorded
- Publication number 20010030927
- Publication date Oct 18, 2001
- KABUSHIKI KAISHA TOSHIBA
- Masaaki Matsumaru
- G11 - INFORMATION STORAGE

Masaaki Matsumaru

Person

Patents Grantslast 30 patents

Optical disc medium having a system information recording area of l...

Disk, disk device and track center detection method

Information recording medium, information recording apparatus, and...

Optical disk and method of manufacturing the same

Optical disk having a format condition information drive

Optical disk and optical information reproducing apparatus

Apparatus for recording information on a primary optical disk to ma...

Patents Applicationslast 30 patents

MASTER RECORDING APPARATUS, MASTER RECORDING METHOD, MASTER FOR STA...

MASTER RECORDING APPARATUS AND MASTER RECORDING METHOD

OPTICAL DISC, OPTICAL DISC REPRODUCING APPARATUS AND OPTICAL DISC R...

INFORMATION RECORDING MEDIUM AND DISC APPARATUS

INFORMATION RECORDING MEDIUM AND DISC APPARATUS

INFORMATION RECORDING MEDIUM AND DISC APPARATUS

Optical disk and optical disk device

Optical disk and optical disk apparatus

Optical disc medium having a system information recording area of l...

Information recording medium, information recording/reproducing met...

Disk, disk device and track center detection method

Information recording medium, information recording apparatus, and...

Optical disc on which pre-pits are recorded