Naoki Hiramatsu

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Nishio, KR

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Patents Grantslast 30 patents

Information Patent Grant
Variable valve mechanism of internal combustion engine
- Patent number 9,556,762
- Issue date Jan 31, 2017
- Otics Corporation
- Masatoshi Sugiura
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES