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:
Nov. 23, 1999
Filed:
Dec. 30, 1997
Makoto Kikuchi, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A light radiating device of a heatsensitive perforating device includes a casing having an opened lower surface arranged at a perforating plane of a heatsensitive stencil sheet; a light emitting device arranged within the casing, the light emitting means having a bulb portion, a base portion and a contact; an electrode connected to a power supply for energizing the light emitting device, said electrode contacting with the contact of the light emitting device; lower side reflection mirrors contacting with the perforating plane of the heatsensitive stencil sheet; upper side reflection mirrors continuous with the lower side reflection mirrors in a predetermined angle; an upper reflection mirror arranged continuous with the upper side reflection mirrors and in parallel with the perforating plane of the heatsensitive stencil sheet; a holding device for holding the light emitting device in such a manner that a line passing straight through the contact, the center of the base portion and the center of the lower surface of the bulb portion of the light emitting device is perpendicular to the perforating plane of the heatsensitive stencil sheet.