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. 29, 2001
Filed:
Jun. 24, 1997
Kenji Hasegawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The heat-generator supporting member of the present invention for an ink-jet head comprises a support comprising a metal, a heat-generating resistance layer for generating thermal energy to be utilized in ink discharge by supply of electric current, an electrode layer electrically connected to the heat-generating resistance layer, a heat-accumulating layer provided under and in direct contact with the heat-generating resistance layer, and a protective layer formed by surface modification of the heat-generating resistance layer and the electrode layer, wherein the heat accumulating layer comprises a plurality of layers comprising a lower layer formed from a silicon oxide film prepared by no-bias sputtering and an upper layer formed from a silicon nitride film or from a silicon oxide film prepared by bias sputtering.