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. 04, 1980
Filed:
Jan. 15, 1979
Applicant:
Inventors:
Nobuyoshi Taguchi, Higashiosaka, JP;
Koji Matsuo, Nara, JP;
Hiromu Takahashi, Hirakata, JP;
Fujio Oda, Ashiya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219216 ; 219543 ; 338309 ;
Abstract
A thin-film thermal head comprises a thin-film heat-generating resistor made of an alloy of Si and a high melting point metal such as Ta, Mo, Ti, W or Zr. Joule heat generated by supplying a pulse current to the thin-film heat-generating resistor is utilized to develop a color on a heat-sensitive recording paper for printing characters and pictures. Resistance against thermal shock of the thin-film heat-generating resistor is improved, thereby attaining a stable lifetime of the thermal head.