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:
Nov. 13, 2012
Filed:
Dec. 22, 2010
Applicant:
Tomohiko Shimoda, Ibaraki-ken, JP;
Inventor:
Tomohiko Shimoda, Ibaraki-ken, JP;
Assignee:
Riso Kagaku Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
Abstract
Streams of ink being returned by a circulation pump from a lower tank through an upstream flow path block to an upper tank have viscosities higher than viscosities of streams of ink being supplied from the upper tank through a downstream flow path block to an inkjet head, there being a difference in flow rate of ink developed with attendant differences in viscosity between the upstream flow path block and the downstream flow path block, while being reduced by differences between heating efficiencies in the upstream flow path block and heating efficiencies in the downstream flow path block.