Seigo Hagiwara

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Kawanishi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Arc welding and arc plasma cutting machines having improved DC high...
- Patent number 5,852,278
- Issue date Dec 22, 1998
- Matsushita Electric Industrial Co., Ltd.
- Yoshiaki Tanaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
ARC welding machine and plasma cutting machine
- Patent number 5,773,792
- Issue date Jun 30, 1998
- Matsushita Electric Industrial Co., Ltd.
- Seigo Hagiwara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Arc welding machine and plasma cutting machine
- Patent number 5,582,751
- Issue date Dec 10, 1996
- Matsushita Electric Industrial Co., Ltd.
- Seigo Hagiwara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Arc welding machine and method
- Patent number 5,283,419
- Issue date Feb 1, 1994
- Matsushita Electric Industrial Co., Ltd.
- Seigo Hagiwara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR