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. 17, 2007
Filed:
Oct. 27, 2004
Shinji Misaki, Tokyo, JP;
Makoto Umekawa, Hyogo, JP;
Keishi Fujii, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A switching device includes a light emitting unitfor applying light to an operational buttonhaving a side that is supported by a hingeso that the operational button can shake is arranged in the vicinity of the hinge, and a light diffusion prism memberfor diffusively reflecting the light emitted out of the light emitting unittoward the operational button. As a result, a downsizing of the whole of the switching device can be achieved, and the switching device is suitable for providing uniform brightness over the whole surface of the operational button without any unevenness of the brightness of the operational button.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile