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:
Jun. 21, 2005
Filed:
Apr. 27, 2004
Tsuyoshi Narusawa, Fukushima-ken, JP;
Kazuhiro Yakoyama, Fukushima-ken, JP;
Takayuki Ito, Fukushima-ken, JP;
Sadayuki Yaginuma, Fukushima-ken, JP;
Tsuyoshi Narusawa, Fukushima-ken, JP;
Kazuhiro Yakoyama, Fukushima-ken, JP;
Takayuki Ito, Fukushima-ken, JP;
Sadayuki Yaginuma, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A key-switch device includes a key-top having retainers formed on the back surface of the key-top, first and second levers disposed under the key-top, each lever including a base-end part and a pair of arms opposing each other and extending from both ends of the base-end part, the first and second levers being connected together rotatably about the substantial center of the pair of arms as an intersecting point, a lever-holding plate capable of retaining each lower end of the first and second levers, and an actuator member attached to and spanned between both the base-end parts of the first and second levers. Further, the actuator member has a concave slide-retainer-receiving part with the open top, and the base-end part of the second lever is slidably retained in the slide-retainer-receiving part.