Akira Ishikawa

Person

Kodaira, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Perpendicular magnetic recording media and magnetic storage
- Patent number 7,138,195
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage device
- Patent number 7,115,329
- Issue date Oct 3, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 7,056,604
- Issue date Jun 6, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium and magnetic storage appara...
- Patent number 6,881,504
- Issue date Apr 19, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media and magnetic storage apparat...
- Patent number 6,759,148
- Issue date Jul 6, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Longitudinal magnetic recording media
- Patent number 6,706,426
- Issue date Mar 16, 2004
- Hitachi, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method of fabricating magnetic recording...
- Patent number 6,692,843
- Issue date Feb 17, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording system including magnetic recording medium havin...
- Patent number 6,671,116
- Issue date Dec 30, 2003
- Hitachi, Ltd.
- Fumiko Akagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium and magnetic storage appara...
- Patent number 6,638,648
- Issue date Oct 28, 2003
- Hitachi, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording system using such...
- Patent number 6,605,374
- Issue date Aug 12, 2003
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,596,420
- Issue date Jul 22, 2003
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage
- Patent number 6,544,672
- Issue date Apr 8, 2003
- Hitachi, Ltd.
- Masaaki Futamoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Magnetic recording media and magnetic storage apparatus
- Patent number 6,511,761
- Issue date Jan 28, 2003
- Hitachi, Ltd.
- Kiwamu Tanahashi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Magnetic recording system including magnetic recording medium havin...
- Patent number 6,456,448
- Issue date Sep 24, 2002
- Hitachi, Ltd.
- Fumiko Akagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,403,240
- Issue date Jun 11, 2002
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording system using such...
- Patent number 6,403,242
- Issue date Jun 11, 2002
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage device using the same
- Patent number 6,251,532
- Issue date Jun 26, 2001
- Hitachi, Ltd.
- Masaaki Futamoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Magnetic recording medium, method of fabricating magnetic recording...
- Patent number 6,197,367
- Issue date Mar 6, 2001
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate for a magnetic recording medium, the magnetic recording m...
- Patent number 6,096,445
- Issue date Aug 1, 2000
- Hitachi, Ltd.
- Masatomo Terakado
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording system using such...
- Patent number 6,080,476
- Issue date Jun 27, 2000
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, process for producing the same and magne...
- Patent number 5,815,343
- Issue date Sep 29, 1998
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording system using the same
- Patent number 5,759,681
- Issue date Jun 2, 1998
- Hitachi, Ltd.
- Yuzuru Hosoe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for its production, and system fo...
- Patent number 5,605,733
- Issue date Feb 25, 1997
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Radiation sensitive materials
- Patent number 5,061,599
- Issue date Oct 29, 1991
- Hitachi, Ltd.
- Tetsuichi Kudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Material for micro optical component and optical component using th...
- Patent number 5,035,478
- Issue date Jul 30, 1991
- Hitachi, Ltd.
- Akira Ishikawa
- G02 - OPTICS
Information Patent Grant
Solid electrolyte
- Patent number 4,699,851
- Issue date Oct 13, 1987
- Hitachi, Ltd.
- Tetsuichi Kudo
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Heteropoly acid containing carbon as hetero atom
- Patent number 4,634,585
- Issue date Jan 6, 1987
- Hitachi, Ltd.
- Tetsuichi Kudo
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Perpendicular magnetic recording media and magnetic storage
- Publication number 20040197607
- Publication date Oct 7, 2004
- Hitachi, Ltd
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and magnetic storage appara...
- Publication number 20040043258
- Publication date Mar 4, 2004
- Hitachi, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording media and magnetic recording system using the same
- Publication number 20030211364
- Publication date Nov 13, 2003
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording system using such...
- Publication number 20020168547
- Publication date Nov 14, 2002
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording media and magnetic recording system using the same
- Publication number 20020150796
- Publication date Oct 17, 2002
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic storage device using the same
- Publication number 20020146592
- Publication date Oct 10, 2002
- Masaaki Futamoto
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Magnetic recording system including magnetic recording medium havin...
- Publication number 20020089771
- Publication date Jul 11, 2002
- Fumiko Akagi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and magnetic storage appara...
- Publication number 20020058161
- Publication date May 16, 2002
- Hitachi, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording media and magnetic storage apparat...
- Publication number 20020048693
- Publication date Apr 25, 2002
- Kiwamu Tanahashi
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20020018920
- Publication date Feb 14, 2002
- Hitachi, Ltd
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method of fabricating magnetic recording...
- Publication number 20010008716
- Publication date Jul 19, 2001
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE

Akira Ishikawa

Person

Patents Grantslast 30 patents

Perpendicular magnetic recording media and magnetic storage

Magnetic recording medium and magnetic storage device

Magnetic recording media and magnetic recording system using the same

Perpendicular magnetic recording medium and magnetic storage appara...

Perpendicular magnetic recording media and magnetic storage apparat...

Longitudinal magnetic recording media

Magnetic recording medium, method of fabricating magnetic recording...

Magnetic recording system including magnetic recording medium havin...

Perpendicular magnetic recording medium and magnetic storage appara...

Magnetic recording medium and magnetic recording system using such...

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic storage

Magnetic recording media and magnetic storage apparatus

Magnetic recording system including magnetic recording medium havin...

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic recording system using such...

Magnetic recording medium and magnetic storage device using the same

Magnetic recording medium, method of fabricating magnetic recording...

Substrate for a magnetic recording medium, the magnetic recording m...

Magnetic recording medium and magnetic recording system using such...

Magnetic recording medium, process for producing the same and magne...

Magnetic recording medium and magnetic recording system using the same

Magnetic recording medium, method for its production, and system fo...

Radiation sensitive materials

Material for micro optical component and optical component using th...

Solid electrolyte

Heteropoly acid containing carbon as hetero atom

Patents Applicationslast 30 patents

Perpendicular magnetic recording media and magnetic storage

Perpendicular magnetic recording medium and magnetic storage appara...

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic recording system using such...

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic storage device using the same

Magnetic recording system including magnetic recording medium havin...

Perpendicular magnetic recording medium and magnetic storage appara...

Perpendicular magnetic recording media and magnetic storage apparat...

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium, method of fabricating magnetic recording...