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. 08, 1993
Filed:
Jan. 31, 1990
Tadaaki Hirai, Koganei, JP;
Hirofumi Ogawa, Hachioji, JP;
Kenji Sameshima, Hachioji, JP;
Yukio Takasaki, Mobara, JP;
Takaaki Unnai, Mobara, JP;
Junichi Yamazaki, Kawasaki, JP;
Misao Kubota, Kawasaki, JP;
Kenkichi Tanioka, Tokyo, JP;
Eikyu Hiruma, Komae, JP;
Hitachi, Ltd., Tokyo, JP;
Nippon Hoso Kyokai, Tokyo, JP;
Abstract
An image pick-up apparatus is disclosed which includes a target portion having a photoconductive film on a substrate and a target electrode and reads video information converted into an electric signal in the photoconductive film by an electron beam. An insulating region is provided for the target portion such that carrier generated in an ineffective scanned region (a target region corresponding to an area not scanned by the electron beam) does not appear on a surface of the target portion.