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:
Jan. 06, 2004
Filed:
Aug. 18, 2000
Applicant:
Inventors:
Kazumi Kawano, Fukuoka, JP;
Hiroshi Harada, Fukuoka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/00 ;
U.S. Cl.
CPC ...
H04M 1/00 ;
Abstract
The exit light from the illuminating part illuminates each key button as a spot light. Hence, leak of light to the surrounding is prevented. As a result, the visual recognition is extremely improved, and easy-to-read type data can be displayed. A telephone terminal device includes a circuit board, and a plurality of key buttons disposed at the upper side of the circuit board. The circuit board has a through-hole, and the through-hole is positioned immediately beneath at least one key button of the plurality of key buttons, and each key button is illuminated by the light passing the through-hole.