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:
Aug. 22, 1995
Filed:
Sep. 10, 1993
Kenichi Fujimori, Yamanashi, JP;
Yoshitaro Nakayama, Yamanashi, JP;
Takumi Shinohara, Kofu, JP;
Atsushi Iwanami, Kofu, JP;
Toshimitsu Hagiwara, Hiratsuka, JP;
Tohru Kobayashi, Hiratsuka, JP;
Shindengen Electric Manufacturing Co., Ltd., Tokyo, JP;
Yamanashi Electronics Co., Ltd., Yamanashi, JP;
Takasago International Corporation, Tokyo, JP;
Abstract
An electrophotographic photoreceptor which is highly sensitive to light having a wavelength in the oscillatory wavelength region of semiconductor laser and responds quickly and is excellent in other electrophotographic characteristics and which consists an electroconductive support, a charge-generating layer and a charge-transfer layer, the two layers being placed on the support, and said charge-transfer layer containing a specific butadiene compound having formula (I); ##STR1## and a monophenol type antioxidant, the weight ratio of the monophenol type antioxidant/the butadiene compound ranging from 5/95 to 40/80.