The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2004
Filed:
May. 23, 2002
Applicant:
Inventors:
Haruhiro Iwaki, Atsugi, JP;
Satoru Watanabe, Atsugi, JP;
Assignee:
Unisia Jecs Corporation, Atsugi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 ;
U.S. Cl.
CPC ...
F01L 1/34 ;
Abstract
In an apparatus for, controlling a variable valve timing mechanism that variably controls valve timing of an engine by changing a rotation phase of a camshaft relative to a crankshaft due to friction braking of an electromagnetic brake, the rotation phase is controlled while limiting a change rate of the rotation phase.