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:
Feb. 03, 2026
Filed:
Mar. 03, 2023
Komatsu Ltd., Tokyo, JP;
Masato Kageyama, Tokyo, JP;
Shouta Seto, Tokyo, JP;
KOMATSU LTD., Tokyo, JP;
Abstract
An oil filter includes: a conductive valve body disposed in a passage provided in a space of a filter case; a conductive valve shaft supported by the valve body via an insulator; a conductive valve disc movably supported by the valve shaft and closing the passage by contacting with the valve body; a valve elastic member generating an elastic force to bring the valve disc into contact with the valve body; a conductive movable member, connected to the valve body, contacting with the valve disc in a state where the valve disc contacts with the valve body and separating from the valve disc after the valve disc separates from the valve body; and a controller supplying current to the valve disc via the valve shaft to determine whether the passage is closed based on an energization state across the valve disc and the valve body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile