Ken Nakamura

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Yasugi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Section steel wire of oil ring
- Patent number 5,411,609
- Issue date May 2, 1995
- Hitachi Metals, Ltd.
- Takao Karoake
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Two-piece oil ring for use in internal combustion engine, steel wir...
- Patent number 5,304,262
- Issue date Apr 19, 1994
- Hitachi Metals, Ltd.
- Takao Karaoke
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR