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. 12, 2001
Filed:
Jul. 19, 1999
Makoto Kashiwaya, Kanagawa, JP;
Junji Nakada, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The thermal head fabrication method provides a thermal head having a lower protective layer composed of at least one sub-layer on heat generators and electrodes, an intermediate protective layer composed of at least one sub-layer on the lower protective layer and an upper protective layer composed of at least one sub-layer with carbon as a main component on the intermediate protective layer. At least one of surfaces of the lower and intermediate protective layers is cleaned by ion irradiation processing, by polishing with a lapping tape or an adhesive tape, or by heating processing in vacuum before forming a higher protective layer. This allows the thermal head to have excellent adhesion between any individual layers and sufficient durability to ensure that the thermal recording of high-quality images is consistently performed over an extended period of time.