Naoya Ishihara

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow poppet valve
- Patent number 9,611,953
- Issue date Apr 4, 2017
- Nittan Valve Co., Ltd.
- Osamu Tsuneishi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Phase varying device for engine
- Patent number 8,505,508
- Issue date Aug 13, 2013
- Nittan Valve Co., Ltd.
- Michihiro Kameda
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Phase varying apparatus for engine
- Patent number 7,992,531
- Issue date Aug 9, 2011
- Nittan Value Co., Ltd.
- Koichi Homma
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW POPPET VALVE
- Publication number 20150354727
- Publication date Dec 10, 2015
- NITTAN VALVE CO., LTD.
- Osamu TSUNEISHI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PHASE VARYING DEVICE FOR ENGINE
- Publication number 20120073532
- Publication date Mar 29, 2012
- NITTAN VALVE CO., LTD.
- Michihiro Kameda
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
PHASE VARYING APPARATUS FOR ENGINE
- Publication number 20100000481
- Publication date Jan 7, 2010
- NITTAN VALVE CO., LTD.
- Koichi Homma
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES