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. 04, 2014
Filed:
Feb. 15, 2011
Applicants:
Yukihiro Saga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Inventors:
Yukihiro Saga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Assignee:
SII Printek Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/195 (2006.01); B41J 29/393 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure damper includes a main body portion having a recessed portion with an opening and a communication hole that opens to an inner surface of the recessed portion and communicates to an external region. A flexible thin film closes the opening of the main body portion for reducing pressure fluctuations of fluid in the recessed portion. A detecting portion is engaged with the main body portion for detecting electromotive force generated by electromagnetic induction to thereby detect a relative positional change between the flexible thin film and the main body portion.