1
Chigono Yasunori, Ishiyama Harumi, Furuya Tadashi, Mashimo Seiji: Image forming method, image forming apparatus and process cartridge. Canon, May 1, 1996: EP0709746-A1 (14 worldwide citation)

The image forming method comprises, electrostatically charging an image bearing member using a contact charging assembly (2), forming an electrostatic latent image on the image bearing member (1) thus charged, developing the electrostatic latent image with a magnetic toner to form a toner image and ...


2
Yano Hideyuki C O Canon K K, Maruyama Akio C O Canon K K, Toshida Yomishi C O Canon K K, Kashimura Noboru C O Canon K K, Nakamura Kazushige C O Canon K, Amamiya Shoji C O Canon K K, Ishiyama Harumi C O Canon K K, Furuya Tadashi C O Canon K K: Charging system and electrophotography apparatus.. Canon, June 28, 1995: EP0660199-A1 (10 worldwide citation)

This invention relates to a charging system for charging a body (1) to be electrified, comprising a body to be electrified, and a charging member (2) which can be applied with voltage to brush the surface of said body to be electrified and charge it. Wherein the surface of the body (1) to be electri ...


3
Amamiya Shoji, Maruyama Akio, Nagase Yukio, Kikuchi Toshihiro, Suzuki Koichi, Ishiyama Harumi: Electrophotographic apparatus and process cartridge. Canon, March 8, 2000: EP0984334-A2 (8 worldwide citation)

An electrophotographic apparatus includes an electrophotographic photosensitive member; charging means for charging the electrophotographic photosensitive member including a charging member supplied with a voltage and disposed in contact with the photosensitive member so as to form a nip with the ph ...


4
Chigono Yasunori, Nagase Yukio, Ishiyama Harumi, Hirabayashi Jun: Image forming apparatus. Canon, September 16, 1998: EP0864936-A2 (6 worldwide citation)

An image forming apparatus includes an image bearing member (1) with a recirculatively movable peripheral surface; and means for forming electrostatic latent images (3) on the peripheral surface of the image bearing member (1), the means comprising a charging member (2) to which voltage is applicabl ...


5
Ishiyama Harumi Canon K K, Sato Yasushi Canon K K, Yano Hideyuki Canon K K, Furuya Tadashi Canon K K, Chigono Yasunori Canon K K, Mashimo Seiji Canon K K: Charging member, charging device and image forming apparatus. Canon, February 14, 1996: EP0696765-A2 (5 worldwide citation)

A charging member (20) supporting magnetic particles for charging a member (1) to be charged, comprising: an electroconductive member (22) to which a voltage is applicable; and a member electrically insulated from the electroconductive member at both end portion, in the longitudinal direction of the ...


6
Ishiyama Harumi, Furuya Tadashi, Yamamoto Takeo, Chigono Yasunori, Mashimo Seiji: Charging device, process cartridge and image forming apparatus. Canon, October 2, 1996: EP0735435-A1 (4 worldwide citation)

A charging device (2) includes a charging member for charging a movable member to be charged; the charging member including a carrying member (21) for carrying a magnetic particle layer (23,24) contactable to the member (1) to be charged, the carrying member being adapted be supplied with a voltage; ...


7
Hirabayashi Jun, Ito Nobuyuki, Ishiyama Harumi, Furuya Tadashi, Chigono Yasunori, Mashimo Seiji: Image forming apparatus and a charging member therefor. Canon, August 13, 1997: EP0789284-A1 (4 worldwide citation)

An image forming apparatus includes an image bearing member; a charging member contactable to said image bearing member for effecting contact charging of said image bearing member, said charging member being capable of being supplied with a voltage having a DC component and an AC component, and said ...


8
Ishiyama Harumi: Charging apparatus and electrophotographic apparatus. Canon, November 5, 1997: EP0805378-A2 (4 worldwide citation)

A charging apparatus is disclosed which has an object member and a charging member. The charging member is comprised of magnetic particles, provided in contact with the object member and capable of electrostatically charging the object member upon application of a voltage. The surfaces of the magnet ...


9
Ishiyama Harumi, Nagase Yukio, Chigono Yasunori, Hirabayashi Jun: Charging device, charging method, cartridge and image forming apparatus. Canon, September 9, 1998: EP0863447-A2 (4 worldwide citation)

A charging apparatus includes a charging member (2), to which a voltage is applicable, for charging a member to be charged (1); the charging member (2) including: an flexible member (2b) for forming a nip (n) with the member to be charged (1), wherein the flexible member (2b) is moved with a periphe ...


10
Hosokawa Takahiro, Ishiyama Harumi, Chigono Yasunori, Hirabayashi Jun: Charging member having foamed elastic portion, charging apparatus, process cartridge, and image forming apparatus. Canon, October 23, 2002: EP1251409-A2 (3 worldwide citation)

A charging member for charging a member to be charged, includes an elastic foam member provided at a surface of the charging member, the elastic foam member including a plurality of cell portions with wall portion defining the cell portions, wherein gaps connecting said cell portions have areas whic ...