Tsuyoshi Onuma

Person

Kitasouma-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 7,348,077
- Issue date Mar 25, 2008
- Hitachi Maxwell Ltd
- Enji Fujita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for producing the same, and magne...
- Patent number 6,994,923
- Issue date Feb 7, 2006
- Hitachi Maxell, Ltd.
- Tetsunori Koda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium with magnetic marks, recording and rep...
- Patent number 6,970,400
- Issue date Nov 29, 2005
- Hitachi Maxell, Ltd.
- Kouichirou Wakabayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for producing the same, and magne...
- Patent number 6,846,582
- Issue date Jan 25, 2005
- Hitachi Maxell, Ltd.
- Tsuyoshi Onuma
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for producing the same, and magne...
- Patent number 6,815,098
- Issue date Nov 9, 2004
- Hitachi Maxell, Ltd.
- Satoshi Matsunuma
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for producing the same, and magne...
- Patent number 6,602,621
- Issue date Aug 5, 2003
- Hitachi Maxell, Ltd.
- Satoshi Matsunuma
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
ELECTROLYTIC COPPER FOIL AND METHOD FOR PRODUCING SAME
- Publication number 20220112618
- Publication date Apr 14, 2022
- NIPPON DENKAI, LTD.
- Toshio KAWASAKI
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Information-recording medium
- Publication number 20080260985
- Publication date Oct 23, 2008
- Hitachi Maxell, Ltd.
- Hiroshi Shirai
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20050048321
- Publication date Mar 3, 2005
- Hitachi Maxell, Ltd.
- Enji Fujita
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method for producing magnetic recording...
- Publication number 20040241500
- Publication date Dec 2, 2004
- Akira Yano
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic storage apparatus using the...
- Publication number 20040121190
- Publication date Jun 24, 2004
- Hitachi Maxell, Ltd.
- Tsuyoshi Onuma
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method for producing the same, and magne...
- Publication number 20030235714
- Publication date Dec 25, 2003
- Hitachi Maxell, Ltd.
- Tetsunori Koda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method for producing the same, and magne...
- Publication number 20030162057
- Publication date Aug 28, 2003
- Hitachi Maxell, Ltd.
- Satoshi Matsunuma
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method of manufacture thereof, and magne...
- Publication number 20030157373
- Publication date Aug 21, 2003
- Fumiyoshi Kirino
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Magnetic recording medium, method for producing the same, and magne...
- Publication number 20030104252
- Publication date Jun 5, 2003
- Hitachi Maxell, Ltd.
- Tsuyoshi Onuma
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, method for prodcing the same, and magnet...
- Publication number 20020122959
- Publication date Sep 5, 2002
- Hitachi Maxell, Ltd.
- Satoshi Matsunuma
- G11 - INFORMATION STORAGE

Tsuyoshi Onuma

Person

Patents Grantslast 30 patents

Magnetic recording medium and magnetic recording apparatus

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

Information recording medium with magnetic marks, recording and rep...

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

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

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

Patents Applicationslast 30 patents

ELECTROLYTIC COPPER FOIL AND METHOD FOR PRODUCING SAME

Information-recording medium

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium, method for producing magnetic recording...

Magnetic recording medium and magnetic storage apparatus using the...

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

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

Magnetic recording medium, method of manufacture thereof, and magne...

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

Magnetic recording medium, method for prodcing the same, and magnet...