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. 01, 1986
Filed:
Jun. 25, 1984
Applicant:
Inventor:
James G Larsen, Milpitas, CA (US);
Assignees:
Ricoh Systems, Inc., San Jose, CA (US);
Ricoh Co. Ltd., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; G01D / ; G01N / ;
U.S. Cl.
CPC ...
346-11 ; 3461 / ; 73 29 ;
Abstract
A method is provided for maintaining the viscosity of a consumable water-containing ink supply at a constant value by measuring water vapor content of the vapor in equilibrium with the ink supply and adding a sufficient amount of water to restore the water vapor content to a predetermined value. The method has particular application for controlling the viscosity of ink used in jet ink printers.
Larsen, James. (1986). Viscosity control of ink-jet inks (U.S. Patent No. 4580143). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4580143
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile