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. 16, 2014
Filed:
Jun. 16, 2009
Applicants:
Shigeru Yamada, Gunma, JP;
Yasushi Takagi, Gunma, JP;
Inventors:
Shigeru Yamada, Gunma, JP;
Yasushi Takagi, Gunma, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 13/50 (2006.01); H01H 13/83 (2006.01); H01H 3/12 (2006.01);
U.S. Cl.
CPC ...
H01H 13/83 (2013.01); H01H 2219/06 (2013.01); H01H 2219/056 (2013.01); H01H 2219/062 (2013.01); H01H 3/125 (2013.01);
Abstract
A key switch structure capable of reducing the height of a key switch, reducing the number of components, and reducing manufacturing costs. The key switch structure includes: a key top; first and second linking mechanisms and adapted to support the key top; a membrane sheet having a contact point portion; a back plate disposed below the membrane sheet and having a function to guide light; and an LED sheet having an LED as a light emitting element disposed thereon, wherein the LED is disposed to be adjacent to the back plate.