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.:

US 6765632 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 20, 2004

Filed:

Aug. 06, 2002
Applicant:
Inventor:

Akihisa Nishioka, Iwata-gun, JP;

Assignee:

Minebea Co., Ltd., Nagano, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ;
U.S. Cl.
CPC ...
G02F 1/1335 ;
Abstract

A cover made of a light-transmissible material and adapted to cover a top surface of a light reflection pattern and an outside surface of a housing is attached on a frame-like plate, that is a part of a casing of a display product such as a cellular phone. Even if the frame-like plate is detached during or after the spread illuminating apparatus is mounted on the product, dusts or foreign materials are prevented from getting stuck to the light reflection pattern, or getting in the gap between the light conductive plate and the housing, or other component members are prevented from damaging the top surface of the light reflection pattern or the outside surface of the housing. These preventions or protections can be ensured by only one single cover, thereby simplifying the configuration of the apparatus.


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Nishioka, Akihisa. (2004). Spread illuminating apparatus with protection cover (U.S. Patent No. 6765632). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6765632

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