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:
Jul. 05, 1977
Filed:
Sep. 15, 1975
Applicant:
Inventors:
Tatsuyuki Tomioka, Hirakata, JA;
Noboru Yukami, Kawanishi, JA;
Yoshi Hamaguchi, Hirakata, JA;
Kiyoharu Yamashita, Hirakata, JA;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219216 ; 346 / ;
Abstract
A thermal printing head of the planar type which comprises a silicon substrate, a plurality of heat-generating elements provided in the silicon substrate and a heat-insulation layer of silicon dioxide which is provided around each heat-generating element. The heat-insulation layer of silicon dioxide has an excellent heat-insulation characteristic, so that heat which is generated from the heat-generating elements is prevented from flowing to neighboring heat-generating elements whereby distinct patterns can be printed on a thermosensitive paper.