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:
Sep. 23, 2008
Filed:
Apr. 25, 2002
Applicants:
Yuji Ohishi, Kanagawa, JP;
Hikaru Morita, Kanagawa, JP;
Chiharu Nakazawa, Kawasaki, JP;
Daisuke Hiwatashi, Kanagawa, JP;
Inventors:
Yuji Ohishi, Kanagawa, JP;
Hikaru Morita, Kanagawa, JP;
Chiharu Nakazawa, Kawasaki, JP;
Daisuke Hiwatashi, Kanagawa, JP;
Assignee:
Hitachi, Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vehicular brake fluid pressure control unit includes a base block of aluminum material having a cylinder bore containing a piston and a return spring, and a cover member fixed to the base block to cover an open end of the cylinder bore. The cover member is formed with a vent hole opening into an atmospheric chamber in the cover member, and made of aluminum. material.