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.

Date of Patent:
Oct. 16, 2001

Filed:

Aug. 22, 2000
Applicant:
Inventors:

Hisashi Yokoyama, Tokyo, JP;

Satoshi Kawamura, Tokyo, JP;

Sotsuo Miyoshi, Tokyo, JP;

Toshihiko Miyake, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 2/507 ; H02P 8/00 ;
U.S. Cl.
CPC ...
F02M 2/507 ; H02P 8/00 ;
Abstract

When a valve lift control signal is received from a control unit,two coils from amongst the coils,in a step motor,are excited and an aperture of a valve,is regulated. When the aperture regulation of the valve,is completed and a fixed period of time elapses, the excitation mode of the step motor,is switched from 2-phase to 1-phase.


Find Patent Forward Citations

Yokoyama, Hisashi. (2001). Valve device and valve control method (U.S. Patent No. 6302090). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6302090

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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