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Naoya Ishihara
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Kanagawa, JP
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Patents Grants
last 30 patents
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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
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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 Applications
last 30 patents
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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