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Isao Hirokawa
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Hamamatsu-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Heat exchange tube
Patent number
8,418,753
Issue date
Apr 16, 2013
Yutaka Giken Co., Ltd.
Isao Hirokawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Valve device for silencer
Patent number
7,066,296
Issue date
Jun 27, 2006
Honda Giken Kogyo Kabushiki Kaisha
Masayuki Uegane
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Exhaust system in internal combustion engine
Patent number
5,712,454
Issue date
Jan 27, 1998
Honda Giken Kogyo Kabushiki Kaisha
Hidenori Ozawa
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
HEAT EXCHANGE TUBE
Publication number
20100224349
Publication date
Sep 9, 2010
YUTAKA GIKEN CO., LTD.
Isao Hirokawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Valve device for silencer
Publication number
20040065503
Publication date
Apr 8, 2004
HONDA GIKEN KOGYO KABUSHIKI KAISHA
Masayuki Uegane
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES