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. 20, 2018
Filed:
Oct. 10, 2014
Applicant:
Konica Minolta, Inc., Chiyoda-ku, JP;
Inventors:
So Yano, Ibaraki, JP;
Satoshi Masuda, Neyagawa, JP;
Makoto Obayashi, Toyokawa, JP;
Masayuki Iijima, Okazaki, JP;
Yoshikazu Watanabe, Toyohashi, JP;
Assignee:
Konica Minolta, Inc., Chiyoda-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 5/00 (2006.01); G01K 7/00 (2006.01); G03G 15/043 (2006.01); G06K 15/02 (2006.01); G06K 15/12 (2006.01); G01K 7/01 (2006.01); G01K 7/42 (2006.01);
U.S. Cl.
CPC ...
G03G 15/043 (2013.01); G01K 7/01 (2013.01); G01K 7/42 (2013.01); G06K 15/027 (2013.01); G06K 15/1247 (2013.01);
Abstract
An optical writing device having; a plurality of light-emitting points; a photodiode configured to output a signal which represents a quantity of incident light from a predetermined light-emitting point selected from the plurality of light-emitting points; and a calculation section for calculating a temperature of the photodiode based on a magnitude of a photodiode dark current included in the signal output from the photodiode while the predetermined light-emitting point is OFF.