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:
Jul. 04, 1989
Filed:
Mar. 10, 1988
Applicant:
Inventors:
Katsumi Nakagawa, Kawasaki, JP;
Soichiro Kawakami, Sagamihara, JP;
Ihachiro Gofuku, Hiratsuka, JP;
Katsunori Hatanaka, Yokohama, JP;
Masaki Fukaya, Isehara, JP;
Toshiyuki Komatsu, Yamato, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2502 / ; 357 30 ;
Abstract
A photoconductive type sensor which comprises a photoconductive layer having a photosensing region. A pair of main electrodes are provided which are disposed on the photosensing region of the photoconductive layer. The sensor also comprises a gate electrode for applying a bias voltage to the photosensing region. The gate electrode provides a bias of one polarity so as to suppress the generation of a channel in the photosensing region.