Masao Ushio

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Toyonaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tungsten electrode material
- Patent number 5,512,240
- Issue date Apr 30, 1996
- Toho Kinzoku Co., Ltd.
- Fukuhisa Matusda
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Discharge electrode material composed of yttrium and rhenium or rut...
- Patent number 4,882,519
- Issue date Nov 21, 1989
- Toho Kinzoku Co., Ltd.
- Yoshinori Maeno
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR