Kazutomi Oka

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for production of hollowed rack bars
- Patent number 6,494,073
- Issue date Dec 17, 2002
- Neturen Co., Ltd.
- Kazutomi Oka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for production of hollowed rack bars
- Publication number 20010006000
- Publication date Jul 5, 2001
- Kazutomi Oka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...