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Akinobu Maeyama
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Variable valve system for internal combustion engine and its drivin...
Patent number
8,082,895
Issue date
Dec 27, 2011
Hitachi, Ltd.
Yoshihiko Yamada
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Oil pressure control apparatus for an internal combustion engine
Patent number
7,281,506
Issue date
Oct 16, 2007
Hitachi, Ltd.
Akinobu Maeyama
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Valve timing control system and method of producing valve timing co...
Patent number
6,910,451
Issue date
Jun 28, 2005
Hitachi, Ltd.
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Oil pressure control apparatus for an internal combustion engine
Patent number
6,848,404
Issue date
Feb 1, 2005
Unisia Jecs Corporation
Akinobu Maeyama
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Oil pressure control apparatus for an internal combustion engine
Patent number
6,622,673
Issue date
Sep 23, 2003
Unisia Jecs Corporation
Akinobu Maeyama
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Valve timing control system and method of producing valve timing co...
Patent number
6,474,280
Issue date
Nov 5, 2002
Unisia Jecs Corporation
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Oil pressure control apparatus for an internal combustion engine
Patent number
6,382,148
Issue date
May 7, 2002
Unisia Jecs Corporation
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Valve timing control device of internal combustion engine
Patent number
6,314,929
Issue date
Nov 13, 2001
Unisia Jecs Corporation
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
VARIABLE VALVE SYSTEM FOR INTERNAL COMBUSTION ENGINE AND ITS DRIVIN...
Publication number
20090159026
Publication date
Jun 25, 2009
Hitachi, Ltd.
Yoshihiko YAMADA
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
OIL PRESSURE CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE
Publication number
20070295413
Publication date
Dec 27, 2007
Hitachi, Ltd.
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Oil pressure control apparatus for an internal combustion engine
Publication number
20050103191
Publication date
May 19, 2005
UNISIA JECS CORPORATION
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Oil pressure control apparatus for an internal combustion engine
Publication number
20040055551
Publication date
Mar 25, 2004
UNISIA JECS CORPORATION
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Valve timing control system and method of producing valve timing co...
Publication number
20030019451
Publication date
Jan 30, 2003
UNISIA JECS CORPORATION
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Oil pressure control apparatus for an internal combustion engine
Publication number
20020026914
Publication date
Mar 7, 2002
UNISIA JECS CORPORATION
Akinobu Maeyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Valve timing control system and method of producing valve timing co...
Publication number
20020026915
Publication date
Mar 7, 2002
UNISIA JECS CORPORATION
Akinobu Maeyama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES