Masakazu Nakamura

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Miyagi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oxide film forming method
- Patent number 6,949,478
- Issue date Sep 27, 2005
- Tadahiro Ohmi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Oxide film forming method
- Patent number 6,146,135
- Issue date Nov 14, 2000
- Ohmi; Tadahiro
- Jinzo Watanabe
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method and apparatus for forming an oxide passivation film on a weld
- Patent number 5,667,133
- Issue date Sep 16, 1997
- Ohmi; Tadahiro
- Tadahiro Ohmi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Superhigh purity fluid supply pipe system and method of installing...
- Patent number 5,545,868
- Issue date Aug 13, 1996
- Ohmi; Tadahiro
- Tadahiro Ohmi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding system for superhigh purity fluid supply pipe system
- Patent number 5,539,171
- Issue date Jul 23, 1996
- Tadahiro OHMI
- Tadahiro Ohmi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Oxide film forming method
- Publication number 20050206018
- Publication date Sep 22, 2005
- Tadahiro Ohmi
- C30 - CRYSTAL GROWTH
Information Patent Application
Oxide film forming method
- Publication number 20030073278
- Publication date Apr 17, 2003
- Tadahiro Ohmi
- C30 - CRYSTAL GROWTH