Osamu Tohya

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Himeji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process of shaping a vessel having a multilayered wall structure
- Patent number 5,683,645
- Issue date Nov 4, 1997
- Idemitsu Petrochemical Company Limited
- Masahiro Akamatsu
- B32 - LAYERED PRODUCTS
Information Patent Grant
Multilayered structural body
- Patent number 5,352,536
- Issue date Oct 4, 1994
- Idemitsu Petrochemical Co., Ltd.
- Masahiro Akamatsu
- B32 - LAYERED PRODUCTS