Yuji Sekiguchi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vortex gasket with composition for high-temperature and high-pressu...
- Patent number 4,629,199
- Issue date Dec 16, 1986
- Nichias Corporation
- Tsutomu Yamamoto
- B32 - LAYERED PRODUCTS
Information Patent Grant
Gasket and method for high-temperature and high pressure application
- Patent number 4,477,094
- Issue date Oct 16, 1984
- Nichias Corporation
- Tsutomu Yamamoto
- B32 - LAYERED PRODUCTS