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:
Mar. 28, 1995
Filed:
Mar. 04, 1994
Applicant:
Inventors:
Kiyofumi Koike, Suwa, JP;
Minoru Tanaka, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
40012426 ; 40012432 ;
Abstract
Disclosed are a magnetic circuit component of an impact dot head and a molding method thereof by which the number of parts is reduced, and an excellent magnetic efficiency is exhibited. At least one member among a plurality of members constituting a magnetic circuit component (e.g., a core block 1) of a printing head is injection-molded after kneading a binder with metallic powder of a magnetic substance. The single member is sintered by joining it to another molded member after effecting de-binder processing, thus manufacturing the component.