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:
May. 13, 1980
Filed:
Aug. 17, 1978
Mitsuo Nakatani, Yokohama, JP;
Takashi Kuroki, Yokohama, JP;
Toshiaki Syozi, Kanagawa, JP;
Yoshiyuki Horibe, Hitachi, JP;
Hitachi, Ltd., , JP;
Abstract
Glass including 10-60% by weight of at least one metal oxide selected from the group consisting of Al.sub.2 O.sub.3, MgO, ZrO.sub.2, BeO and TiO.sub.2 is formed, as a heat-insulator, on a substrate. Plural pairs of electrodes, each laterally facing to the other, are formed on the glass, heating resistors are formed between the electrodes of each pair, and the electrodes and the resistors are covered by a protective layer formed of glass including 10-40% by weight of at least one metal oxide selected from the group consisting of Al.sub.2 O.sub.3 and BeO to complete a thick-film thermal printing head.