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. 26, 1996
Filed:
Mar. 21, 1995
Applicant:
Inventors:
Sotsuo Miyoshi, Hyogo, JP;
Hidetoshi Okada, Hyogo, JP;
Hajime Kako, Hyogo, JP;
Hirofumi Ohuchi, Hyogo, JP;
Satoshi Kawamura, Hyogo, JP;
Toshihiko Miyake, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F16K / ;
U.S. Cl.
CPC ...
123571 ; 25112911 ; 318600 ;
Abstract
A flow quantity valve controller includes a unit for positioning so that a phase of a stepper motor becomes a predetermined phase when a motor shaft making a linear move with rotation of the stepper motor is pulled most into the stepper motor side. When the motor shaft is pulled most into the stepper motor side, a flow quantity valve controller changes a stepper motor drive signal to a drive signal corresponding to a predetermined phase.