Haruhiko Yamaguchi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for testing characteristics of thin-film magne...
- Patent number 8,138,754
- Issue date Mar 20, 2012
- TDK Corporation
- Akio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium producing method, and optical recording me...
- Patent number 7,625,506
- Issue date Dec 1, 2009
- TDK Corporation
- Mamoru Usami
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording medium-manufacturing apparatus
- Patent number 7,270,527
- Issue date Sep 18, 2007
- TDK Corporation
- Junichi Ide
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium-manufacturing apparatus
- Patent number 7,096,770
- Issue date Aug 29, 2006
- TDK Corporation
- Junichi Ide
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium-manufacturing apparatus
- Patent number 7,047,859
- Issue date May 23, 2006
- TDK Corporation
- Junichi Ide
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR TESTING CHARACTERISTICS OF THIN-FILM MAGNE...
- Publication number 20090284857
- Publication date Nov 19, 2009
- TDK Corporation
- Akio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium producing method, and optical recording me...
- Publication number 20060177534
- Publication date Aug 10, 2006
- Mamoru Usami
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Optical recording medium-manufacturing apparatus
- Publication number 20040168559
- Publication date Sep 2, 2004
- TDK Corporation
- Junichi Ide
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Cut-forming machine and optical recording medium-manufacturing appa...
- Publication number 20040149115
- Publication date Aug 5, 2004
- TDK Corporation
- Junichi Ide
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Optical recording medium-manufacturing apparatus
- Publication number 20040149096
- Publication date Aug 5, 2004
- TDK Corporation
- Junichi Ide
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
Optical recording medium-manufacturing apparatus
- Publication number 20040149111
- Publication date Aug 5, 2004
- TDK Corporation
- Junichi Ide
- G11 - INFORMATION STORAGE