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. 21, 2019
Filed:
Jun. 21, 2016
Katsuhiko Aisu, Hyogo, JP;
Yasukazu Nakatani, Hyogo, JP;
Kazuhiro Yoneda, Osaka, JP;
Takaaki Negoro, Osaka, JP;
Yoshinori Ueda, Hyogo, JP;
Katsuyuki Sakurano, Hyogo, JP;
Katsuhiko Aisu, Hyogo, JP;
Yasukazu Nakatani, Hyogo, JP;
Kazuhiro Yoneda, Osaka, JP;
Takaaki Negoro, Osaka, JP;
Yoshinori Ueda, Hyogo, JP;
Katsuyuki Sakurano, Hyogo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A photoelectric conversion device includes a photoelectric conversion unit which includes a phototransistor having a collector region, an emitter region, and a base region to generate an output current according to an intensity of incident light to the phototransistor, and a base potential setting unit which is configured to set up a base potential of the phototransistor so that the output current from the photoelectric conversion unit is equal to a predetermined current value.