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. 03, 1990
Filed:
Sep. 16, 1988
Applicant:
Inventor:
Yoshihiro Torisawa, Shizuoka, JP;
Assignee:
Tokyo Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400124 ; 400174 ; 101 9305 ; 3461 / ;
Abstract
A dot printer wherein a film of magnetic ink is formed in a slit shaped between a pair of magnetic poles, and needles piercing through the ink film thus formed are driven to deposit the magnetic ink on a recording paper so as to print dots thereon. The tips of the needles in an undriven state are positioned in the ink film proximately to one surface thereof adjacent to the recording paper, so that an adequate amount of the magnetic ink is deposited on the paper to eventually attain clear printing.
Torisawa, Yoshihiro. (1990). Dot printer (U.S. Patent No. 4913568). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4913568
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile