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:
Apr. 24, 1990
Filed:
May. 04, 1988
Applicant:
Inventors:
Noboru Yukami, Hirakata, JP;
Mitsusuke Ikeda, Hirakata, JP;
Masaharu Ohno, Higashiosaka, JP;
Mikihiko Nisihtani, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kodama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357 63 ; 357 61 ;
Abstract
When a photocurrent is detected by irradiating a main light reflected on a manuscript and a biasing light, on a photo-sensing device, the material of the photo-sensing device of the present invention has a response characteristic of a photocurrent to time, a rise characteristic of the response characteristic being S-shaped, and thereby to obtain a superior response characteristic of the photo-sensing device.