1
Yoshihide Fujimaki, Shigeki Takenouchi: Photoreceptor. Konica Corporation, Finnegan Henderson Farabow Garrett and Dunner, February 6, 1990: US04898799 (62 worldwide citation)

A photoreceptor for electrophotography containing a titanyl phthalocyanine compound which has major peaks in terms of Bragg's 2.theta. angle to the CuK.alpha. characteristic X-ray (wavelength at 1.541 .ANG.) at least at 9.4.+-.0.2 degrees, 11.7.+-.0.2 degrees, 11.7.+-.0.2 degrees, 15.0.+-.0.2 degree ...


2
Satoshi Goto, Kiyoshi Sawada, Osamu Sasaki, Akira Kinoshita, Yoshiaki Takei, Yoshihide Fujimaki: Electrophotographic element with fluorenylidene hydrazone compounds. Konishiroku Photo, Frishauf Holtz Goodman & Woodward, November 15, 1983: US04415640 (45 worldwide citation)

Electrophotographic light-sensitive elements containing substituted or unsubstituted fluorenone hydrazones as charge generating or charge transport materials are described.


3
Yasuo Suzuki, Yoshihide Fujimaki, Hiroyuki Nomori: Photoreceptor for electrophotography comprising a phthalocyanine and organic amine compound. Konishiroku Photo, Jordan B Bierman, July 5, 1988: US04755443 (26 worldwide citation)

Disclosed is a photoreceptor for electrophotography comprised of a charge carrier generating material and charge transport material wherein one charge generating material is a metal phthalocyanine or a metal-free phthalocyanine. The layer containing the generator material also contains an organic am ...


4
Satoshi Goto, Akira Kinoshita, Yoshiaki Takei, Yoshihide Fujimaki: Electrophotographic light-sensitive element. Konishiroku Photo, Frishauf Holtz Goodman & Woodward, November 15, 1983: US04415641 (22 worldwide citation)

An electrophotographic light-sensitive element comprising a conductive support which supports a light-sensitive layer containing a carbazole derivative of the formula: ##STR1## wherein R.sub.1 is an aryl group, R.sub.2 is hydrogen, a halogen, an alkyl, an alkoxy, an amino or hydroxy group, and R.sub ...


5
Yoshihide Fujimaki, Yoshiaki Takei, Hiroyuki Nomori: Electrophotographic photosensitive member. Konishiroku Photo, Frishauf Holtz Goodman & Woodward, September 10, 1985: US04540651 (17 worldwide citation)

There is disclosed an electrophotographic photosensitive member comprising a photosensitive layer comprising a combination of a carrier generating layer and a carrier transporting layer provided on an electroconductive support, the carrier generating layer containing a bisazo compound and the carrie ...


6
Yoshihide Fujimaki, Yoshiaki Takei, Hiroyuki Nomori: Photoreceptor for electrophotography, method of forming an electrostatic latent image, and electrophotographic process. Konishiroku Photo, Jordan B Bierman, October 16, 1984: US04477549 (17 worldwide citation)

A highly sensitive photoreceptor for electrophotography that forms a sharp image during repeated use is disclosed. It comprises an electrically conductive support having successively formed thereon a photoconductive photosensitive layer and a protective layer for that photosensitive layer, said phot ...


7
Yozo Fujii, Hiroyuki Moriguchi, Yoshikazu Ikunami, Masahiko Matsunawa, Akihiko Tamura, Kazuo Yasuda, Tadashi Miwa, Tatsumi Horiuchi, Tadao Kishimoto, Yoshihide Fujimaki, Hiroyuki Takagiwa, Takashi Tamura: Color image forming apparatus with photoreceptor protector. Konica Corporation, Frishauf Holtz Goodman Langer & Chick, January 23, 1996: US05486898 (16 worldwide citation)

In a color image forming apparatus, an image retainer, a charger, a plurality of developing devices and a cleaner are made in one unit. The unit is dismountably supported in a housing so that the unit can be moved out from a first position at which the unit is set in the housing to a second position ...


8
Yoshiaki Takei, Yoshihide Fujimaki, Hiroyuki Nomori: Photoconductive receptor for an electrophotography. Konishiroku Photo, Frishauf Holtz Goodman & Woodward, May 22, 1984: US04450218 (16 worldwide citation)

An electrophotographic element having a carrier generating layer and a carrier transport layer, which carrier transport layer contains an arylamine derivative and an amine substituted styryl compound, is disclosed.


9
Yasuhiro Oda, Hiroshi Yoshioka, Hajime Tadokoro, Yoshihide Fujimaki: Electrophotographic photoreceptor having a light-sensitive layer formed from titanyl phthalocyanine pigment dispersed in a branched ester or alcohol solvent. Konica Corporation, Finnegan Henderson Farabow Garrett and Dunner, May 19, 1992: US05114815 (16 worldwide citation)

An electrophotographic photoreceptor having a light-sensitive layer on an electroconductive base is disclosed, the improvement wherein the light-sensitive layer is formed from a dispersion in which a titanyl phthalocyanine pigment having at least two predominant peaks of the Bragg angle 2.theta. at ...


10
Yoshihide Fujimaki, Hajime Tadokoro, Yasuhiro Oda, Hiroshi Yoshioka: Electrophotographic photoreceptor. Konica Corporation, Jordan B Bierman, March 2, 1993: US05190839 (15 worldwide citation)

An electrophotographic photoreceptor is disclosed. The photoreceptor contains in a light sensitive layer thereof a titanylphthalocyanine having specific crystalline characteristics as defined in the specification and a polycyclic quinone pigment or a bisazo pigment as defined in the specification. T ...