Patents by Inventor Fumio Nishino
Fumio Nishino 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).
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Patent number: 5032868Abstract: An electrophotographic copying apparatus is provided with a first body and a second body, the first body having a photosensitive member, a light source for exposing an original, an original supporting table movable relative to the light source with the original supported thereon, and a first optical system for projecting a first image information light reflected from the original onto the photosensitive member. The second body has a second optical system for projecting a second image information light onto the photosensitive member in the first body. Two copying modes are provided: a first mode for copying by the first image information light, and a second mode for copying by the second image information light. In the second mode, a controller positions a shutter member for blank exposure in the optical path in its retracted position prior to the copying in the second mode.Type: GrantFiled: October 19, 1989Date of Patent: July 16, 1991Assignee: Canon Kabushiki KaishaInventors: Fumio Nishino, Tamotsu Okada, Fumio Asano, Koyokazu Namekata
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Patent number: 4972227Abstract: A process kit includes a support member having a photosensitive member integrally mounted thereon together with process elements for acting on the photosensitive member. The support member is mountable on and removable from a main image forming apparatus having an optical system for projecting an image onto the photosensitive member. The support member has a positioning element for engaging the optical system in order to position the optical system accurately with respect to the photosensitive member. This configuration permits sharply formed images to be formed on the photosensitive member after removal and remounting of the process kit.Type: GrantFiled: July 31, 1989Date of Patent: November 20, 1990Assignee: Canon Kabushiki KaishaInventors: Shigeyoshi Onoda, Akihiro Nomura, Morikazu Mizutani, Shinji Kanemitsu, Mototada Toriumi, Fumio Nishino
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Patent number: 4714337Abstract: Various components of image-forming means such as corona discharger, developing device and cleaning means are arranged around a photosensitive drum. These processing parts and the photosensitive drum are assembled together into a unit which can be detachably mounted into the main body of image-forming apparatus. Such a unit is called process kit. The process kit is provided with a driving connection member for receiving a driving force from the main body. The present invention provides safety means for effectively protecting said driving connection member from shock and impact thereby assuring the utility of the process kit for a long time.Type: GrantFiled: December 2, 1986Date of Patent: December 22, 1987Assignee: Canon Kabushiki KaishaInventors: Fumio Nishino, Shigeyoshi Onoda, Akihiro Nomura, Morikazu Mizutani, Shinji Kanemitsu, Mototada Toriumi
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Patent number: 4627701Abstract: A process kit is detachably mounted in the main body of an image forming apparatus and includes a housing in which a photosensitive member, a corona discharger and a developing device are mounted and held as a unit, the housing including an optical opening formed therein upstream of the corona discharger for conducting a homogeneous light to the photosensitive member to eliminate any remaining charge thereon and an opening of exposure for conducting a light of information to the photosensitive member, the exposure opening being located between the corona discharger and the developing device.Type: GrantFiled: October 4, 1985Date of Patent: December 9, 1986Assignee: Canon Kabushiki KaishaInventors: Shigeyoshi Onoda, Akihiro Nomura, Morikazu Mizutani, Shinji Kanemitsu, Mototada Toriumi, Fumio Nishino
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Patent number: 4591258Abstract: Various components of image-forming means such as corona discharger, developing device and cleaning means are arranged around a photosensitive drum. These processing parts and the photosensitive drum are assembled together into a unit which can be detachably mounted into the main body of image-forming apparatus. Such a unit is called process kit. The process kit is provided with a driving connection member for receiving a driving force from the main body. The present invention provides safety means for effectively protecting said driving connection member from shock and impact thereby assuring the utility of the process kit for a long time.Type: GrantFiled: December 16, 1982Date of Patent: May 27, 1986Assignee: Canon Kabushiki KaishaInventors: Fumio Nishino, Shigeyoshi Onoda, Akihiro Nomura, Morikazu Mizutani, Shinji Kanemitsu, Mototada Toriumi
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Patent number: 4575221Abstract: A process kit is detachably mounted in the main body of an image forming apparatus and includes a housing in which a photosensitive member, a corona discharger and a developing device are mounted and held as a unit, the housing including an optical opening formed therein upstream of the corona discharger for conducting a homogeneous light to the photosensitive member to eliminate any remaining charge thereon and an opening of exposure for conducting a light of information to the photosensitive member, the exposure opening being located between the corona discharger and the developing device.Type: GrantFiled: May 16, 1983Date of Patent: March 11, 1986Assignee: Canon Kabushiki KaishaInventors: Shigeyoshi Onoda, Akihiro Nomura, Morikazu Mizutani, Shinji Kanemitsu, Mototada Toriumi, Fumio Nishino
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Patent number: 4566777Abstract: An image forming apparatus includes a process kit detachably mountable thereinto, the process kit having a casing in which an electrophotographic type photosensitive member, a corona discharging device, a development device and a cleaning device are contained as a unit, the casing of the process kit including a slit-like opening formed therein at a position opposed to the corona discharging device within the process kit and an openable light-blocking member of a flexible sheet which extends along the slit-like opening to block external light toward the electrophotographic type photosensitive member within the casing of the process kit. A cleaner may be inserted into the casing through the slit-like opening to clean the corona discharging wire within the casing.Type: GrantFiled: August 15, 1983Date of Patent: January 28, 1986Assignee: Canon Kabushiki KaishaInventors: Haruhisa Honda, Shigeyoshi Onoda, Fumio Nishino
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Patent number: 4551000Abstract: A process kit containing consumable members is detachably mountable in the main body of an operating device and includes apparatus for indicating when the useful life of the process kit is about to expire and when it has expired.Type: GrantFiled: March 22, 1982Date of Patent: November 5, 1985Assignee: Canon Kabushiki KaishaInventors: Shinji Kanemitsu, Shigeyoshi Onoda, Fumio Nishino, Akihiro Nomura, Morikazu Mizutani, Hiroshi Nitanda
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Patent number: 4470689Abstract: This specification discloses a process kit removably mountable on the main body of an image formation apparatus and integrally having an image bearing member and a part or the whole of process device acting on the image bearing member, and an image formation apparatus using such kit. The image formation apparatus having an image bearing member, process device acting on the image bearing member, a process kit removably mountable on the main body of the apparatus and integrally having the image bearing member and the process device, and a cover movable to a first position for covering the surface of the image bearing member provided in the process kit and a second position retracted away from the first position.Type: GrantFiled: May 25, 1982Date of Patent: September 11, 1984Assignee: Canon Kabushiki KaishaInventors: Akihiro Nomura, Shigeyoshi Onoda, Fumio Nishino, Shinji Kanemitsu, Morikazu Mizutani, Hiroshi Nitanda