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. 29, 1988
Filed:
Oct. 15, 1985
Applicant:
Inventor:
Yukihiro Ageishi, Kawasaki, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; G01D / ; B23K / ;
U.S. Cl.
CPC ...
2915 / ; 346 75 ; 3461 / ; 2191171 ;
Abstract
An ink jet head includes a metallic nozzle member and a metallic ink chamber member which are bonded to each other by Joule effect with a thin metallic layer interposed therebetween. The metallic layer is deposited on a mirror-finished surface of the ink chamber member to make contact with a mirror-finished surface of the nozzle member in the event of bonding.