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:
Jun. 08, 1993
Filed:
Oct. 29, 1992
Applicant:
Inventors:
Yasumitsu Yokoyama, Kakuda, JP;
Mitsuo Sato, Miyagi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
1011284 ; 346 / ; 400120 ;
Abstract
A thermal plate making apparatus including a thermal head having a plurality of heating elements arranged in a line. Each element has a shape having substantially four corners. And a protruding portion for enhancing heat generation is formed at each of at least two diagonal corners of the element.