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last 30 patents
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Patent Grant
Auto-tensioner
Patent number
6,471,611
Issue date
Oct 29, 2002
Aisin Seiki Kabushiki Kaisha
Koji Hotta
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Valve gear device
Patent number
5,488,934
Issue date
Feb 6, 1996
Aisin Seiki Kabushiki Kaisha
Eiji Shirai
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Variable valve timing system in an engine having two cam-shafts
Patent number
5,275,138
Issue date
Jan 4, 1994
Aisin Seiki Kabushiki Kaisha
Koji Hotta
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Variable valve timing system in an engine having a rotating cam-shaft
Patent number
5,090,365
Issue date
Feb 25, 1992
Aisin Seiki Kabushiki Kaisha
Koji Hotta
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Variable valve timing system in an engine having a rotating cam-shaft
Patent number
5,080,052
Issue date
Jan 14, 1992
Aisin Seiki Kabushiki Kaisha
Koji Hotta
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES