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:
Jan. 14, 1997
Filed:
May. 10, 1995
Noboru Tsushima, Takizawa-mura, JP;
Toshiya Endoh, Takizawa-mura, JP;
Satoru Sasaki, Morioka, JP;
Ken Yamamura, Morioka, JP;
Takashi Shirakawa, Takizawa-mura, JP;
Toshifumi Nakatani, Morioka, JP;
Akinori Takahashi, Tamayama-mura, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A thermal head including a temperature keeping layer disposed on a substrate, a plurality of heat generating elements formed on the temperature keeping layer, a plurality of individual electrodes connected to the corresponding heat generating elements, a common electrode connected to the heat generating elements, respectively. Each heat generating element includes a heat generating portion formed between one of the individual electrodes and the common electrode. Each of the individual electrodes and the common electrode have a dual layered structure including a lower electrode and an upper electrode, the lower electrode being formed between the temperature keeping layer and one of the heat generating elements, and the upper electrode being formed above the heat generating element.