Patents by Inventor Atsushi Iwanami

Atsushi Iwanami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrophotographic photoreceptor
    Patent number: 5443933
    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.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: August 22, 1995
    Assignees: Shindengen Electric Manufacturing Co., Ltd., Yamanashi Electronics Co., Ltd., Takasago International Corporation
    Inventors: Kenichi Fujimori, Yoshitaro Nakayama, Takumi Shinohara, Atsushi Iwanami, Toshimitsu Hagiwara, Tohru Kobayashi