Hiromu Chiba

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lapping tool and method for manufacturing the same
- Patent number 8,092,560
- Issue date Jan 10, 2012
- Hitachi, Ltd.
- Hiroshi Inaba
- B24 - GRINDING POLISHING
Information Patent Grant
Method of manufacturing magnetic head
- Patent number 6,881,124
- Issue date Apr 19, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Toshio Takahashi
- B24 - GRINDING POLISHING
Information Patent Grant
Magnetic head and magnetic head manufacturing method
- Patent number 6,690,544
- Issue date Feb 10, 2004
- Hitachi, Ltd.
- Atsuko Okawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head with base coat and small pole-tip recess
- Patent number 6,687,089
- Issue date Feb 3, 2004
- Hitachi Ltd.
- Hiromu Chiba
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic head manufacturing method
- Patent number 6,504,680
- Issue date Jan 7, 2003
- Hitachi, Ltd.
- Atsuko Okawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic head manufacturing method
- Patent number 6,278,582
- Issue date Aug 21, 2001
- Hiatchi, Ltd.
- Atsuko Okawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Lapping tool and method for manufacturing the same
- Publication number 20070122548
- Publication date May 31, 2007
- Hiroshi Inaba
- B24 - GRINDING POLISHING
Information Patent Application
Magnetic head and magnetic head manufacturing method
- Publication number 20030090840
- Publication date May 15, 2003
- Atsuko Okawa
- G11 - INFORMATION STORAGE
Information Patent Application
Lapping apparatus, magnetic head and method of manufacturing the same
- Publication number 20020126421
- Publication date Sep 12, 2002
- Hitachi, Ltd
- Toshio Takahashi
- B24 - GRINDING POLISHING
Information Patent Application
Thin film magnetic head
- Publication number 20020105758
- Publication date Aug 8, 2002
- Hitachi, Ltd
- Hiromu Chiba
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head and magnetic head manufacturing method
- Publication number 20020027746
- Publication date Mar 7, 2002
- Atsuko Okawa
- G11 - INFORMATION STORAGE