1
Maruyama Akio, Kikuchi Toshihiro, Amamiya Shoji, Nagahara Shin, Aoki Katsumi, Tsuji Haruyuki: Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same.. Canon, September 23, 1992: EP0504794-A1 (19 worldwide citation)

A electrophotographic photosensitive member and an electrophotographic apparatus, a device unit and a facsimile machine using an electrophotographic photosensitive member which comprises a conductive support, a photosensitive layer and a protective layer, the protective layer containing resin formed ...


2
Okuda Atsushi, Kitamura Ko, Hirano Hidetoshi, Tsuji Haruyuki: Electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus. Canon, August 9, 2007: JP2007-199688 (16 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which solves problems on cleaning, such as blade curling and blade squeaking, has proper solvent cracking resistance and is easily manufactured, by markedly improving the lubricity of an electrophotographic photoreceptor surface w ...


3
Kashimura Noboru C O Canon Kab, Sakoh Harumi C O Canon Kabushi, Nakamura Kazushige C O Canon K, Amamiya Shoji C O Canon Kabush, Kasuya Takashige C O Canon Kab, Tsuji Haruyuki C O Canon Kabus, Yamagami Masaaki C O Canon Kab, Ikezue Tatsuya C O Canon Kabus: Electrophotographic apparatus.. Canon, March 16, 1994: EP0587067-A2 (8 worldwide citation)

An electrophotographic apparatus is disclosed which has an electrophotographic photosensitive member and a transfer means. The photosensitive member has a conductive support and a photosensitive layer, and further has a surface layer comprised of a binder resin, fluorine atom- or silicon atom-contai ...


4
Tsuji Haruyuki, Sako Shunkai, Takagi Shinji: Electrophotographic photoreceptor, method of producing the same, process cartridge and electrophotographic device. Canon, May 11, 2001: JP2001-125297 (8 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high durability and a long service life, not causing image defects such as lowered density due to the rise of residual potential and the lowering of sensitivity over a long period of time and giving a high quality image fre ...


5
Takagi Shinji, Sako Shunkai, Tsuji Haruyuki: Electrophotographic image forming device and process cartridge. Canon, May 11, 2001: JP2001-125298 (6 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic image forming device and a process cartridge each using an electrophotographic photoreceptor which is used in an injection electrifying process using a magnetic brush as an electrifier, has a surface layer comprising a resin formed in a film by ...


6
Kumoi Hirofumi, Tsuji Haruyuki, Nakada Koichi: Electrophotographic photoreceptor, and process cartridge and electrophotographic device having electrophotographic photoreceptor. Canon, November 6, 2003: JP2003-316059 (5 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which not only prevents decrease in the image density from the initial stage at low humidity, changes in the density with time, and image defects such as image flow and ghost images at high humidity but can stably produce high-qua ...


7
TSUJI HARUYUKI: Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus. CANON KABUSHIKI KAISHA, Okabe Yuzuru, March 10, 2011: WO/2011/027912 (5 worldwide citation)

An electrophotographic photosensitive member having a specific conductive layer and promising less variation in light-area potential and residual potential in reproducing images repeatedly, and a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensi ...


8
Tsuji Haruyuki, Yoshihara Yoshiyuki, Morikawa Yosuke, Asano Kumiko: Image forming device. Canon, April 28, 2000: JP2000-122434 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide an excellent image being free from the image defect due to transfer defect and having high durability and long life by a specified universal hardness and satisfactory average hardness and the pressure of a specified pressing member rendered.SOLUTION: This device is p ...


9
Sako Shunkai, Tsuji Haruyuki, Takagi Shinji, Saito Hiroshi: Electrophotographic image forming method, electrophotographic image forming device and process cartridge. Canon, November 22, 2001: JP2001-324857 (4 worldwide citation)

PROBLEM TO BE SOLVED: To provide an electrophotographic image forming method, an electrophotographic image forming device and a process cartridge capable of maintaining high image quality over a long term by preventing the damage of a photoreceptor due to the attachment/detachment of a transfer mean ...


10
Takagi Shinji, Sako Shunkai, Tsuji Haruyuki, Saito Hiroshi: Electrophotographic photoreceptor, electrophotographic image forming device provided with the same, and process cartridge. Canon, May 11, 2001: JP2001-125286 (4 worldwide citation)

PROBLEM TO BE SOLVED: To obtain an electrophotographic photoreceptor which prevents its dielectric breakdown due to a flaw which occurs in the photoreceptor in a transfer step and reaches the electric charge transferring layer and a recess in the electric charge generating layer, suppresses the occu ...