Takabumi Marukawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of chemical mechanical texturing
- Patent number 6,755,722
- Issue date Jun 29, 2004
- Nihon Microcoating Co., Ltd.
- Yuji Horie
- B24 - GRINDING POLISHING
Information Patent Grant
Method of processing surface of glass substrate for magnetic disk a...
- Patent number 6,491,572
- Issue date Dec 10, 2002
- Nihon Microcoating Co., Ltd.
- Yuji Horie
- B24 - GRINDING POLISHING
Information Patent Grant
Method of chemical mechanical texturing
- Patent number 6,315,638
- Issue date Nov 13, 2001
- Nihon Micro Coating Co., Ltd.
- Takabumi Marukawa
- B24 - GRINDING POLISHING
Information Patent Grant
Method of mirror-finishing a glass substrate
- Patent number 6,287,175
- Issue date Sep 11, 2001
- Nihon Micro Coating Co., Ltd.
- Takabumi Marukawa
- B24 - GRINDING POLISHING