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.

Date of Patent:
Mar. 14, 2000

Filed:

Feb. 24, 1998
Applicant:
Inventors:

Hiroshi Yoshikawa, Tokyo, JP;

Tsutomu Takahashi, Tokyo, JP;

Tamotsu Koike, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H01H / ;
U.S. Cl.
CPC ...
362 23 ; 362 24 ; 362 84 ; 362 85 ; 362260 ; 200310 ; 200311 ; 200313 ; 200314 ; 40542 ;
Abstract

A resinous member with a character visually arranged therein, including a resinous body, a character formed by a laser beam machining on a surface of the body, and a light transmittable coating arranged on the surface of the body for covering at least the character. The light transmittable coating is provided with a generally uniform thickness to form a roughened outer surface substantially corresponding to a machined surface of the character. The light transmittable coating may be formed through a spray coating process. The resinous member may be used as a key top member of a key in a keyboard of an electronic machine. The key top member comprises a resinous body, a character arranged on a surface of the body, and optical means arranged in association with the character for highlighting the character in an optical manner using an external light. The optical means may comprise a phosphorescent or fluorescent member.


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