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:
Apr. 10, 2018
Filed:
Oct. 22, 2014
Applicant:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Inventor:
Shigeru Yamada, Tokyo, JP;
Assignee:
JIANGSU TRANSIMAGE TECHNOLOGY CO., LTD., Gaoyou, Jiangsu Province, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 13/14 (2006.01); H01H 3/12 (2006.01);
U.S. Cl.
CPC ...
H01H 3/125 (2013.01); H01H 2219/03 (2013.01); H01H 2219/062 (2013.01); H01H 2221/07 (2013.01);
Abstract
To provide a key switch structure where the outline of a key top becomes well-defined. A reflection sheet is adhered on top of a membrane sheet, so that light reflected by a back surface of a key top is reflected by the reflection sheet and emitted toward the outer side of the outer periphery of the key top. Because of this, the outer side of the key top is lighted up and the outline of the key top becomes well-defined.