1
Takegawa Ichiro, Kimura Takaaki: Electrophotographic photoreceptor and its use in an image forming method. Fuji Xerox, June 26, 1996: EP0718699-A2 (9 worldwide citation)

An electrophotographic photoreceptor excellent in electric characteristics and having few defects in image quality, and an image forming method for forming an image free from defects in image quality by the contact charging system. The inventive electrophotographic photoreceptor comprising a conduct ...


2
Takegawa Ichiro, Nukada Hidemi, Nakamura Hiroshi, Aida Michiko, Kamijo Yukiko, Iwasaki Masahiro: Electrophotographic photoreceptor, process cartridge and electrophotographic device. Fuji Xerox, March 19, 2003: JP2003-084472 (8 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high durability capable of sufficiently preventing the degradation in electric characteristics accompanying repetitive use and high resolution quality, a process cartridge having the same and an electrophotographic device.S ...


3
Takegawa Ichiro, Nukada Hidemi, Yamamoto Hiroshi, Goshima Koji, Kimura Takaaki: Electrophotographic photoreceptor, image forming apparatus and use of this photoreceptor in an image forming process. Fuji Xerox, July 23, 1997: EP0785477-A2 (7 worldwide citation)

An electrophotographic photoreceptor is disclosed which comprises an electrically-conductive substrate having provided thereon an undercoat layer and a photosensitive layer, wherein said undercoat layer comprises a crosslinkable matrix and an electron-transporting material.


4
Takegawa Ichiro, Nakamura Hiroshi, Miyamoto Masahiko, Yao Kenji: Electrophotographic apparatus and image forming method. Fuji Xerox, May 26, 2000: JP2000-147803 (4 worldwide citation)

PROBLEM TO BE SOLVED: To reduce fluctuation of exposed potentials between each electrophotographic cycle and to prevent occurrences of black spots and white spots and ghosts by incorporating a specified copolymer resin made from specified polycarbonate and bis-phenol A polycarbonate. SOLUTION: The s ...


5
Takegawa Ichiro, Nakamura Hiroshi, Miyamoto Masahiko, Yao Kenji: Electrophotographic device. Fuji Xerox, November 30, 2000: JP2000-330303 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide a durable photoreceptor in which image quality is not degraded even when used in a tandem system by incorporating at least a copolymerized polycarbonate resin into the surface layer of a monolayer type or laminate type electrophotographic photoreceptor. SOLUTION: At ...


6
Miyamoto Masahiko, Yao Kenji, Takimoto Hitoshi, Takegawa Ichiro: Electrophotographic photoreceptor, electrophotographic process cartridge and electrophotographic device. Fuji Xerox, March 16, 2001: JP2001-066800 (3 worldwide citation)

PROBLEM TO BE SOLVED: To enhance toner-releasing properties of the surface layer of a photoreceptor without lowering electrical characteristics and the resolution of an image by dispersing and incorporating fine silica particles which have a specified volume average particle diameter into the surfac ...


7
Suzuki Takahiro, Bando Koji, Hozumi Masahiko, Koseki Kazuhiro, Takegawa Ichiro, Nukada Hidemi, Nakamura Hiroshi: Electrophotographic photoreceptor and image forming apparatus. Fuji Xerox, May 21, 2003: JP2003-149845 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having a sufficiently short response time and excellent in mechanical and electrical resistances and to provide an image forming apparatus capable of attaining all of speeding up, downsizing and elongation of operating life.SOLUTI ...


8
Yao Kenji, Miyamoto Masahiko, Takegawa Ichiro: Electrophotographic photoreceptor and process cartridge and electrophotographic device using the same. Fuji Xerox, September 7, 2001: JP2001-242657 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which absorbs the stress externally added by electrification, cleaning or the like, which is extremely excellent in the mechanical strength and electric characteristics and which can form high-quality images for a long time, and t ...


9
Aida Michiko, Takegawa Ichiro, Nukada Hidemi, Nakamura Hiroshi, Kamijo Yukiko, Yamazaki Kazuo, Iwasaki Masahiro: Electrophotographic photoreceptor and electrophotographic device. Fuji Xerox, November 27, 2002: JP2002-341569 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with which the film thickness of an under-coating layer can be increased and the resistance can be decreased without the occurrence of film thickness unevenness and peeling in forming the under-coating layer and an image quality d ...


10
Takegawa Ichiro: Electrophotographic photoreceptor, method of manufacturing electrophotographic photoreceptor, and electrophotographic apparatus. Fuji Xerox, August 14, 2002: JP2002-229240 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor, in which the deterioration of image quality is suppressed by improving the leak-proofing property while improving the wear resistance, a method of manufacturing the electrophotographic photoreceptor, and an electrophotographic ap ...