Masayuki Kurihara

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Submerged laser beam irradiation equipment
- Patent number 5,938,954
- Issue date Aug 17, 1999
- Hitachi, Ltd.
- Tsutomu Onuma
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Metal member quality improving method by spot welding
- Patent number 5,494,539
- Issue date Feb 27, 1996
- Hitachi, Ltd.
- Hiroshi Tsujimura
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR