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:
Jan. 07, 1992
Filed:
Jul. 25, 1990
Toshiro Shimodaira, Shiojiri, JP;
Yuki Nakamura, Ina, JP;
Toshihiro Kobayashi, Nagano, JP;
Kingo Chino, Nagano, JP;
Takafumi Kuwazawa, Chino, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
A recording head for electrostatic recording comprises an electrode substrate formed by bonding together by a bonding agent a pair of substantially planar sub-substrates of an electrical insulating material, each of which is formed on its one surface with a plurality of elongate, equally-spaced and parallel recording electrodes electrically insulated from each other and aligned in a row, so that the electrodes on one of the sub-substrates are located, respectively, opposite to the spaces between adjacent electrodes on the other sub-substrate. In the recording head, the electrode row on each of the sub-substrates has a high degree of linearity, and the dimension in the widthwise direction of the electrode substrate defined by the distance between the electrode row on one of the sub-substrates and that on the other sub-substrate is maintained uniform over the whole longitudinal direction of the electrode substrate. A method of making such a recording head is also disclosed.