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:
Sep. 06, 1994
Filed:
Jan. 11, 1993
Applicant:
Inventors:
Tsutomu Sawa, Fujisawa, JP;
Hiroyuki Takenoshita, Yokohama, JP;
Kohei Shibata, Isehara, JP;
Hirohide Komatsu, Machida, JP;
Assignees:
International Business Machines Corporation, Armonk, NY (US);
K.R.D. Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
40012432 ; 101 9305 ;
Abstract
A head wire for use in a high-speed impact dot matrix printer head, having an elongated body, made of a high speed steel wire material or titanium alloy wire material. One end of the body is connectable to an armature of the printed head and a second end on an ink ribbon for printing characters on a paper material. The second end has a coating formed around its periphery and consists of a ceramic hard titanium compound or an aluminum oxide.