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:
Jan. 30, 2007
Filed:
Jun. 02, 2004
Takaomi Shirase, Nagano-ken, JP;
Yoshiyuki Takamatsu, Nagano-ken, JP;
Masaya Shigeta, Nagano-ken, JP;
Takaomi Shirase, Nagano-ken, JP;
Yoshiyuki Takamatsu, Nagano-ken, JP;
Masaya Shigeta, Nagano-ken, JP;
Nissin Kogyo Co., Ltd., Nagano-Ken, JP;
Abstract
An electromagnetic valve comprising has a valve seat, a valve element movable relative to the valve seat so as to open or close a hydraulic fluid passage interposed therebetween and a plunger movable together with the valve element relative to the valve seat, wherein the valve element includes a sealing portion having an arc-shaped vertical cross section that contacts with the valve seat and an expanding diameter portion having a diameter gradually increasing in a direction from the sealing portion toward the plunger.