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:
Apr. 24, 2001
Filed:
Jan. 28, 1997
Junichi Suetsugu, Niigata, JP;
Kazuo Shima, Niigata, JP;
Yoshihiro Hagiwara, Niigata, JP;
Ryosuke Uematsu, Niigata, JP;
Hitoshi Minemoto, Niigata, JP;
Toru Yakushiji, Niigata, JP;
Tadashi Mizoguchi, Niigata, JP;
Hitoshi Takemoto, Niigata, JP;
NEC Corporation, Tokyo, JP;
Abstract
An electrostatic ink jet printing head comprises printing electrodes formed on the base film of a substrate. The printing electrodes have insulating coating films which coat the printing electrodes, respectively. Each of the printing electrodes has a main electrode portion formed on the base film and a protruding electrode portion which protrudes from the base film. A covering member covers the main electrode portion. The covering member has an internal surface defining, in cooperation with the main electrode portions and the base film, a ink receiving space which receives ink containing toner particles.