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. 20, 1989
Filed:
Jul. 23, 1987
Akira Sasaki, Hitachi, JP;
Yoshihito Takahashi, Hitachi, JP;
Akiyoshi Hakoyama, Hitachi, JP;
Katsumasa Mikami, Ibaraki, JP;
Masafumi Suzaki, Hitachi, JP;
Takeo Honma, Hitachi, JP;
Tsuyoshi Yasutomi, Kokubu, JP;
Ryoichi Shiraishi, Kokubu, JP;
Yasuo Nishiguchi, Kyoto, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The face pressure distribution shape of the graze portion of the thermal head is made to be consistent with the temperature distribution shape of the graze portion of the thermal head. The temperature distribution shape of the graze portion of the thermal head is made to be consistent with the face pressure distribution shape of the graze portion of the thermal head. The graze portion of the thermal head is formed projectingly in two steps, and the heating resistor element of the thermal head is provided on the top portion of the graze portion of the thermal head. A thermal transfer printer having no ink void and no ink transfer unevenness can be obtained.