Naoto Ogasawara

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Patents Grantslast 30 patents

Information Patent Grant
Surface-hardened titanium material, surface hardening method of tit...
- Patent number 6,270,914
- Issue date Aug 7, 2001
- Citizen Watch Co., Ltd.
- Naoto Ogasawara
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of manufacturing molded copper-chromium family metal alloy a...
- Patent number 5,689,796
- Issue date Nov 18, 1997
- Citizen Watch Co., Ltd.
- Takao Kasai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing precision metal part by powder molding wherei...
- Patent number 5,283,031
- Issue date Feb 1, 1994
- Citizen Watch Co., Ltd.
- Naoto Ogasawara
- B22 - CASTING POWDER METALLURGY