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. 09, 2003
Filed:
Feb. 08, 2002
Kouki Takahashi, Kawasaki, JP;
Kouji Ishikawa, Kawasaki, JP;
Kiyokazu Moriizumi, Kawasaki, JP;
Kiyoshi Wada, Kawasaki, JP;
Katsumi Harada, Shinagawa, JP;
Junichi Maruyama, Shinagawa, JP;
Yasuo Yatsuda, Shinagawa, JP;
Kazutoshi Hayashi, Shinagawa, JP;
Toshiaki Tanaka, Hachioji, JP;
Other;
Abstract
A key switch includes a switch provided on a base, a key top for operating the switch, and a link mechanism supported on the base and supporting the key top on its upper side, a shape of the link mechanism being changed when the key top is depressed. A movable plate is provided on the base, in stacked relationship; such that the movable plate is moved when the key top is depressed so as to change the shape of the link mechanism to a flat shape. An auxiliary link mechanism has a first part supported on the moveable plate and, in turn, by the base and a second part supporting the key top.