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:
Jun. 01, 2010
Filed:
Sep. 18, 2008
Applicants:
Nobumasa Abe, Nagano, JP;
Ken Ikuma, Nagano, JP;
Inventors:
Nobumasa Abe, Nagano, JP;
Ken Ikuma, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A first container is operable to accommodate a liquid toner, and provided with a window. A reflector is disposed in the first container. A light emitter is operable to emit light to the reflector through the window and the liquid toner. A light receiver is operable to receive the light reflected by the reflector through the liquid toner and the window. A detector is operable to detect a concentration of the liquid toner based on the light received by the light receiver.