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:
May. 24, 2016
Filed:
Dec. 19, 2014
Hiroshi Andoh, Ibaraki, JP;
Hideharu Miki, Ibaraki, JP;
Genichiro Kawamichi, Ibaraki, JP;
Shigeru Morinaga, Kanagawa, JP;
Kohji Tokuyama, Ibaraki, JP;
Toshihide Inaba, Tokyo, JP;
Mitsuyuki Karasawa, Ibaraki, JP;
Takeo Shirato, Ibaraki, JP;
Hiroshi Andoh, Ibaraki, JP;
Hideharu Miki, Ibaraki, JP;
Genichiro Kawamichi, Ibaraki, JP;
Shigeru Morinaga, Kanagawa, JP;
Kohji Tokuyama, Ibaraki, JP;
Toshihide Inaba, Tokyo, JP;
Mitsuyuki Karasawa, Ibaraki, JP;
Takeo Shirato, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A device for detecting a state of a liquid droplet discharged from each of nozzles placed in one or more rows, includes a light emitting element to emit a light beam to the liquid droplet from a nozzle in question, and a pair of light receiving elements disposed on both sides of a beam diameter of the light beam via an optical axis to receive scattered light occurring from the liquid droplet for detecting a state of the discharged liquid droplet on the basis of the scattered light. Either of the pair of the light receiving elements is selected for receiving the scattered light from the liquid droplet discharged from the nozzle according to a positional relation between the nozzle and the pair of light receiving elements.