Hiroshi Takumi

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Neyagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spring manufacturing machine equipped with two motors
- Patent number 4,503,694
- Issue date Mar 12, 1985
- Shinko Kikaikogyo Kabushiki Kaisha
- Hiroshi Takumi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for raising hooks of semi-finished spring products
- Patent number 4,485,851
- Issue date Dec 4, 1984
- Shinko Machinery Co., Ltd.
- Hiroshi Takumi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...