Patents by Inventor Shinichi Otani
Shinichi Otani 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: 8965248Abstract: An image formation unit includes a first unit rotatably supporting an image carrier on which an electrostatic latent image is to be formed, and a second unit rotatably supporting a developer carrier configured to develop the electrostatic latent image with a developer. The first unit includes a first engagement portion formed at one end in the direction of the rotational axis of the image carrier, and a second engagement portion provided at a predetermined distance from the first engagement portion at the one end side. The second unit includes a first engaged portion engaged with the first engagement portion, a second engaged portion engaged with the second engagement portion, and a drive input portion provided between the first and second engaged portions and configured to rotate the developer carrier.Type: GrantFiled: June 27, 2013Date of Patent: February 24, 2015Assignee: Oki Data CorporationInventors: Atsushi Kobayashi, Shinichi Otani, Yukiyoshi Oda, Yasushi Nakasone
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Publication number: 20140003841Abstract: An image formation unit includes a first unit rotatably supporting an image carrier on which an electrostatic latent image is to be formed, and a second unit rotatably supporting a developer carrier configured to develop the electrostatic latent image with a developer. The first unit includes a first engagement portion formed at one end in the direction of the rotational axis of the image carrier, and a second engagement portion provided at a predetermined distance from the first engagement portion at the one end side. The second unit includes a first engaged portion engaged with the first engagement portion, a second engaged portion engaged with the second engagement portion, and a drive input portion provided between the first and second engaged portions and configured to rotate the developer carrier.Type: ApplicationFiled: June 27, 2013Publication date: January 2, 2014Inventors: Atsushi KOBAYASHI, Shinichi OTANI, Yukiyoshi ODA, Yasushi NAKASONE
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Patent number: 8526856Abstract: An image forming unit includes a first rotating body having a first gear; a first unit that rotatably supports the first rotating body; a second rotating body having a second gear; a second unit that rotatably supports the second rotating body; and a biasing part that biases the second unit toward the first unit, wherein a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body, and the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force.Type: GrantFiled: January 25, 2010Date of Patent: September 3, 2013Assignee: Oki Data CorporationInventor: Shinichi Otani
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Patent number: 8515315Abstract: A developing device includes a developer bearing body, a first developer supply member, a second developer supply member, and a compression member. The developer bearing body bears a developer. The first developer supply member supplies the developer to the developer bearing body. The second developer supply member moves the developer in the vicinity of the first developer supply member to the first developer supply member. The compression member opposes, and is out of contact with, the first developer supply member. The compression member also directs the developer moved by the second developer supply member to the first developer supply member, and compresses the developer between the first developer supply member and the compression member.Type: GrantFiled: February 2, 2011Date of Patent: August 20, 2013Assignee: Oki Data CorporationInventors: Masahiro Kawano, Shinichi Otani
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Publication number: 20110217084Abstract: A developing device includes a developer bearing body, a first developer supply member, a second developer supply member, and a compression member. The developer bearing body bears a developer. The first developer supply member supplies the developer to the developer bearing body. The second developer supply member moves the developer in the vicinity of the first developer supply member to the first developer supply member. The compression member opposes, and is out of contact with, the first developer supply member. The compression member also directs the developer moved by the second developer supply member to the first developer supply member, and compresses the developer between the first developer supply member and the compression member.Type: ApplicationFiled: February 2, 2011Publication date: September 8, 2011Applicant: Oki Data CorporationInventors: Masahiro KAWANO, Shinichi Otani
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Patent number: 7813681Abstract: A contact pressure setting method of setting a contact pressure between contact members of an image forming apparatus. A film member is inserted into a gap between the contact members and the contact pressure is set so that a pulling force to pull out the film member lies within a predetermined range. Thus, the contact pressure can be accurately and easily recognized and the contact pressure can be set to be uniform.Type: GrantFiled: March 25, 2008Date of Patent: October 12, 2010Assignee: Oki Data CorporationInventors: Takanori Mimura, Junichi Ito, Shinichi Otani
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Publication number: 20100189466Abstract: An image forming unit includes a first rotating body having a first gear; a first unit that rotatably supports the first rotating body; a second rotating body having a second gear; a second unit that rotatably supports the second rotating body; and a biasing part that biases the second unit toward the first unit, wherein a drive force is generated by transmitting rotation from the first gear to the second gear in order to transmit the rotation from the first rotating body to the second rotating body, and the biasing part biases the second unit in a biasing direction substantially perpendicular to a driving direction of the drive force.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: Oki Data CorporationInventor: Shinichi OTANI
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Patent number: 7711291Abstract: A developing device includes a developer container having a developer supply opening and a developer storage section, so that developer is supplied from the developer container to the developer storage section through the developer supply opening. The developing device further includes a developer guide member disposed below the developer supply opening along a longitudinal direction of the developing device, and a developer delivery member disposed in the developer guide member for delivering developer supplied through the developer supply opening in a longitudinal direction of the developer guide member. The developer guide member has a wall portion having a shape so that developer flows out the developer guide member in a substantially uniform amount along the longitudinal direction of the developing device.Type: GrantFiled: September 7, 2006Date of Patent: May 4, 2010Assignee: Oki Data CorporationInventor: Shinichi Otani
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Patent number: 7522851Abstract: A toner container (101) is detachably attached to a developing device (104). A toner (120) stored in the toner container (101) is supplied through a supply opening (104a) to a hopper (105) of the developing device (104). A movable shutter (123) is provided below the supply opening (104a). The shutter (123) opens the supply opening (104a) when the amount of the toner (121) in the hopper (105) is less than a predetermined amount, and closes the supply opening (104a) when the amount of the toner (121) in the hopper (105) is greater than or equals to the predetermined amount.Type: GrantFiled: March 2, 2005Date of Patent: April 21, 2009Assignee: Oki Data CorporationInventors: Tetsu Koyama, Shinichi Otani
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Patent number: 7406276Abstract: A contact pressure setting method of setting a contact pressure between contact members of an image forming apparatus. A film member is inserted into a gap between the contact members and the contact pressure is set so that a pulling force to pull out the film member lies within a predetermined range. Thus, the contact pressure can be accurately and easily recognized and the contact pressure can be set to be uniform.Type: GrantFiled: June 29, 2005Date of Patent: July 29, 2008Assignee: Oki Data CorporationInventors: Takanori Mimura, Junichi Ito, Shinichi Otani
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Publication number: 20080175631Abstract: A contact pressure setting method of setting a contact pressure between contact members of an image forming apparatus. A film member is inserted into a gap between the contact members and the contact pressure is set so that a pulling force to pull out the film member lies within a predetermined range. Thus, the contact pressure can be accurately and easily recognized and the contact pressure can be set to be uniform.Type: ApplicationFiled: March 25, 2008Publication date: July 24, 2008Applicant: OKI DATA CORPORATIONInventors: Takanori MIMURA, Junichi ITO, Shinichi OTANI
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Publication number: 20070077096Abstract: A developing device includes a developer container having a developer supply opening and a developer storage section, so that developer is supplied from the developer container to the developer storage section through the developer supply opening. The developing device further includes a developer guide member disposed below the developer supply opening along a longitudinal direction of the developing device, and a developer delivery member disposed in the developer guide member for delivering developer supplied through the developer supply opening in a longitudinal direction of the developer guide member. The developer guide member has a wall portion having a shape so that developer flows out the developer guide member in a substantially uniform amount along the longitudinal direction of the developing device.Type: ApplicationFiled: September 7, 2006Publication date: April 5, 2007Inventor: Shinichi Otani
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Patent number: 7187876Abstract: An image-forming apparatus includes a mechanism that controls the replenishment amount of toner to a predetermined value. A toner cartridge holds toner therein. The toner cartridge is detachably attached to a process cartridge. The process cartridge has a toner reservoir that holds the toner supplied from the toner cartridge, a photoconductive drum and a developing roller that supplies the toner to the photoconductive drum. A valve is located between the toner cartridge and the process cartridge and supplies the toner from the toner cartridge to the process cartridge. When the valve rotates, the valve supplies a volume of toner in such a way that the toner in the toner reservoir fills a volume not more than a predetermined fraction of a maximum capacity of the toner reservoir.Type: GrantFiled: October 27, 2004Date of Patent: March 6, 2007Assignee: Oki Data CorporationInventors: Junichi Ito, Tetsu Koyama, Shinichi Otani
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Patent number: D529076Type: GrantFiled: June 21, 2005Date of Patent: September 26, 2006Assignee: Oki Data CorporationInventors: Atsushi Kobayashi, Shigenori Koido, Masayuki Suzuki, Yasushi Nakasone, Tetsuji Kojima, Tetsu Koyama, Shinichi Otani, Takanori Mimura
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Patent number: D546873Type: GrantFiled: June 21, 2005Date of Patent: July 17, 2007Assignee: Oki Data CorporationInventors: Shinichi Otani, Tetsu Koyama, Masayuki Suzuki, Atsushi Kobayashi, Tetsuji Kojima, Yasushi Nakasone, Shigenori Koido, Takanori Mimura
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Patent number: D573631Type: GrantFiled: November 20, 2006Date of Patent: July 22, 2008Assignee: Oki Data CorporationInventors: Yukiyoshi Oda, Shinichi Otani
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Patent number: D588633Type: GrantFiled: November 20, 2006Date of Patent: March 17, 2009Assignee: Oki Data CorporationInventors: Yukiyoshi Oda, Shinichi Otani
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Patent number: D727412Type: GrantFiled: January 10, 2014Date of Patent: April 21, 2015Assignee: OKI Data CorporationInventors: Yukiyoshi Oda, Shigenori Koido, Shinichi Otani
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Patent number: D733794Type: GrantFiled: January 10, 2014Date of Patent: July 7, 2015Assignee: OKI DATA CORPORATIONInventors: Yukiyoshi Oda, Shigenori Koido, Shinichi Otani, Atsushi Kobayashi
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Patent number: D752136Type: GrantFiled: January 10, 2014Date of Patent: March 22, 2016Assignee: OKI DATA CORPORATIONInventors: Shigenori Koido, Yukiyoshi Oda, Shinichi Otani