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.

Date of Patent:
Jul. 29, 2008

Filed:

Oct. 06, 2006
Applicants:

Yu Yonezawa, Yokohama, JP;

Naoyuki Mishima, Yokohama, JP;

Tadashi Nakatani, Kawasaki, JP;

Anh Tuan Nguyen, Kawasaki, JP;

Satoshi Ueda, Kawasaki, JP;

Inventors:

Yu Yonezawa, Yokohama, JP;

Naoyuki Mishima, Yokohama, JP;

Tadashi Nakatani, Kawasaki, JP;

Anh Tuan Nguyen, Kawasaki, JP;

Satoshi Ueda, Kawasaki, JP;

Assignees:

Fujitsu Media Devices Limited, Yokohama, JP;

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switch includes a first member, one end of which being secured to a substrate, multiple first beam portions respectively having multiple first contact portions, one ends of the multiple beam portions being secured to the first member, multiple contact switch portions connected in parallel, the multiple first contact portions and multiple second contact portions being in a contact state or in a non-contact state in the multiple contact switch portions, and resistors arranged respectively between the multiple contact switch portions and a common connection point to which the multiple contact switch portions are coupled. When at least one of the multiple switch portions is in a contact state, one of the resistors corresponding to the at least one of the multiple switch portions in a contact state has a resistance value greater than another one of the resistors corresponding to at least one of the multiple contact switch portions that is in a non-contact state.


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