Eiji Ohbayashi

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Kuwana, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for forming coil springs
- Patent number 4,893,491
- Issue date Jan 16, 1990
- Asahi-Seiki Manufacturing Co., Ltd.
- Yozo Ohdai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of and an apparatus for forming tension springs with German...
- Patent number 4,680,950
- Issue date Jul 21, 1987
- Asahi-Seiki Manufacturing Co., Ltd.
- Yozo Ohdai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...