Akira Ishikawa

Person

Tochigi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic tape
- Patent number 7,276,302
- Issue date Oct 2, 2007
- Quantum Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic tape
- Patent number 7,255,908
- Issue date Aug 14, 2007
- Quantum Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium comprising a mixed magnetic region having...
- Patent number 6,063,489
- Issue date May 16, 2000
- Kao Corporation
- Hideyuki Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,814,394
- Issue date Sep 29, 1998
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,795,642
- Issue date Aug 18, 1998
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,792,570
- Issue date Aug 11, 1998
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,789,063
- Issue date Aug 4, 1998
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a magnetic layer which includes ma...
- Patent number 5,718,978
- Issue date Feb 17, 1998
- Kao Corporation
- Kazutaka Yamashita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium with magnetic powder in lower magnetic la...
- Patent number 5,705,268
- Issue date Jan 6, 1998
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a substrate containing magnetic po...
- Patent number 5,629,075
- Issue date May 13, 1997
- Kao Corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium with a back coat layer of nitrocellulose...
- Patent number 5,069,963
- Issue date Dec 3, 1991
- Kao Corporation
- Hidetoshi Yanai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,741,959
- Issue date May 3, 1988
- Kao Corporation
- Chiaki Abe
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic tape
- Publication number 20040258960
- Publication date Dec 23, 2004
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic tape
- Publication number 20040258961
- Publication date Dec 23, 2004
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic tape
- Publication number 20030194582
- Publication date Oct 16, 2003
- Quantum Corporation, a California corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic tape
- Publication number 20030124385
- Publication date Jul 3, 2003
- Quantum Corporation, a California corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic tape
- Publication number 20030054203
- Publication date Mar 20, 2003
- Quantum Corporation, a California corporation
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic tape
- Publication number 20020041981
- Publication date Apr 11, 2002
- Akira Ishikawa
- G11 - INFORMATION STORAGE

Akira Ishikawa

Person

Patents Grantslast 30 patents

Magnetic tape

Magnetic tape

Magnetic recording medium comprising a mixed magnetic region having...

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium having a magnetic layer which includes ma...

Magnetic recording medium with magnetic powder in lower magnetic la...

Magnetic recording medium having a substrate containing magnetic po...

Magnetic recording medium with a back coat layer of nitrocellulose...

Magnetic recording medium

Patents Applicationslast 30 patents

Magnetic tape

Magnetic tape

Magnetic tape

Magnetic tape

Magnetic tape

Magnetic tape