Patents by Inventor Yoshiaki Okano

Yoshiaki Okano 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).

  • Patent number: 9964903
    Abstract: A fixing device includes a magnetic flux generation unit, an auxiliary heating body formed of material that generates heat from the magnetic flux generated by the magnetic flux generation unit, a rotatable fixing belt having opposing first and second ends in a direction of its rotational axis and a material that generates heat from the magnetic flux, a magnetic flux shield in contact with the auxiliary heating body and having first and second openings that expose the auxiliary body, the first and second openings being symmetrical with respect to a center point along the rotational axis between the first and second ends, a temperature sensor in contact with the auxiliary heating body through one of the first and second openings of the magnetic flux shield shielding member, and a driver that controls power supplied to the magnetic flux generation unit in accordance with signals from the temperature sensor.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 8, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yoshiaki Okano, Noboru Furuyama, Yuki Kawashima
  • Patent number: 9864312
    Abstract: A fixing device includes a magnetic flux generation unit, an auxiliary heating body formed of material that generates heat from the magnetic flux generated by the magnetic flux generation unit, a rotatable fixing belt having opposing first and second ends in a direction of its rotational axis and a material that generates heat from the magnetic flux, a magnetic flux shield in contact with the auxiliary heating body and having first and second openings that expose the auxiliary body, the first and second openings being symmetrical with respect to a center point along the rotational axis between the first and second ends, a temperature sensor in contact with the auxiliary heating body through one of the first and second openings of the magnetic flux shield shielding member, and a driver that controls power supplied to the magnetic flux generation unit in accordance with signals from the temperature sensor.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 9, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yoshiaki Okano, Noboru Furuyama, Yuki Kawashima
  • Patent number: 9832328
    Abstract: In accordance with an embodiment, a character recognition apparatus comprises a decolorization control section configured to carry out a decolorization processing for a sheet; an image reading control section configured to carry out an image reading processing for the sheet to which the decolorization processing is carried out; and a character recognition processing section configured to carry out a character recognition processing for a decolorized image read through the reading processing after the decolorization processing is carried out or for a generated image generated according to the decolorized image.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 28, 2017
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Naomi Nakane, Setsuo Takada, Noboru Furuyama, Yoshiaki Okano, Masaya Tanaka, Hiroshi Katakura, Chie Miyauchi, Katsutoshi Mita, Hiroshi Ishii
  • Publication number: 20170155778
    Abstract: In accordance with an embodiment, a character recognition apparatus comprises a decolorization control section configured to carry out a decolorization processing for a sheet; an image reading control section configured to carry out an image reading processing for the sheet to which the decolorization processing is carried out; and a character recognition processing section configured to carry out a character recognition processing for a decolorized image read through the reading processing after the decolorization processing is carried out or for a generated image generated according to the decolorized image.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 1, 2017
    Inventors: Naomi Nakane, Setsuo Takada, Noboru Furuyama, Yoshiaki Okano, Masaya Tanaka, Hiroshi Katakura, Chie Miyauchi, Katsutoshi Mita, Hiroshi Ishii
  • Patent number: 9250584
    Abstract: A fixer includes a fixing belt configured to move around a center, a heating unit configured to induction-heat the fixing belt, a pressing member that presses an outer surface of the fixing belt, a resilient member disposed opposite to the pressing member across the fixing belt, and a heat generating member that is capable of being induction-heated and disposed along the inner surface of the fixing belt between a first position and a second position that is downstream with respect to the first position in a moving direction of the fixing belt. An upstream end portion of the resilient member in the moving direction is in contact with a third position of the fixing belt, and an angle formed with respect to the center by the second and third positions is equal to or smaller than 60°.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: February 2, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Yoshiaki Okano, Satoshi Itaya, Yoshiki Kogiso
  • Publication number: 20150338802
    Abstract: In accordance with one embodiment, a fixing apparatus comprises a fixing member configured to include a heating layer, a pressing member configured to rotate and contact with the fixing member to form a nip, and an electromagnetic induction member configured to heat the heating layer, wherein the two end parts of the pressing member are contacted with the fixing member at areas outside the area of the fixing member opposing the electromagnetic induction member.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 26, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshiaki Okano
  • Patent number: 9081050
    Abstract: A semiconductor device includes a semiconductor substrate including an element region, an inner sealing and an outer sealing which are formed on the element region and have a first opening part and a second opening part, respectively, a multilayer interconnection structure which is formed on the substrate and stacks multiple inter-layer insulation films each including a wiring layer, a moisture resistant film formed between a first inter-layer insulation film and a second inter-layer insulation film which are included in the multilayer interconnection structure, a first portion which extended from a first side of the moisture resistant film and passes the first opening part, a second portion which extended from a second side of the moisture resistant film and passes through the second opening part, and a wiring pattern including a via plug which penetrates the moisture resistant film and connects the first portion and the second portion.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 14, 2015
    Assignee: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Akihiko Okutsu, Hitoshi Saito, Yoshiaki Okano
  • Publication number: 20140097861
    Abstract: A semiconductor device includes a semiconductor substrate including an element region, an inner sealing and an outer sealing which are formed on the element region and have a first opening part and a second opening part, respectively, a multilayer interconnection structure which is formed on the substrate and stacks multiple inter-layer insulation films each including a wiring layer, a moisture resistant film formed between a first inter-layer insulation film and a second inter-layer insulation film which are included in the multilayer interconnection structure, a first portion which extended from a first side of the moisture resistant film and passes the first opening part, a second portion which extended from a second side of the moisture resistant film and passes through the second opening part, and a wiring pattern including a via plug which penetrates the moisture resistant film and connects the first portion and the second portion.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Akihiko Okutsu, Hitoshi Saito, Yoshiaki Okano
  • Patent number: 8633571
    Abstract: A semiconductor device includes a semiconductor substrate including an element region, an inner sealing and an outer sealing which are formed on the element region and have a first opening part and a second opening part, respectively, a multilayer interconnection structure which is formed on the substrate and stacks multiple inter-layer insulation films each including a wiring layer, a moisture resistant film formed between a first inter-layer insulation film and a second inter-layer insulation film which are included in the multilayer interconnection structure, a first portion which extended from a first side of the moisture resistant film and passes the first opening part, a second portion which extended from a second side of the moisture resistant film and passes through the second opening part, and a wiring pattern including a via plug which penetrates the moisture resistant film and connects the first portion and the second portion.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Akihiko Okutsu, Hitoshi Saito, Yoshiaki Okano
  • Publication number: 20130015587
    Abstract: A semiconductor device includes a semiconductor substrate including an element region, an inner sealing and an outer sealing which are formed on the element region and have a first opening part and a second opening part, respectively, a multilayer interconnection structure which is formed on the substrate and stacks multiple inter-layer insulation films each including a wiring layer, a moisture resistant film formed between a first inter-layer insulation film and a second inter-layer insulation film which are included in the multilayer interconnection structure, a first portion which extended from a first side of the moisture resistant film and passes the first opening part, a second portion which extended from a second side of the moisture resistant film and passes through the second opening part, and a wiring pattern including a via plug which penetrates the moisture resistant film and connects the first portion and the second portion.
    Type: Application
    Filed: May 29, 2012
    Publication date: January 17, 2013
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Akihiko Okutsu, Hitoshi Saito, Yoshiaki Okano
  • Publication number: 20110305472
    Abstract: According to one embodiment, an image forming apparatus includes plural image forming sections provided along an intermediate transfer member, and a controller configured to sequentially transfer, with primary transfer members of the image forming sections, images of respective colors onto the intermediate transfer member to be superimposed one on top of another to form a color image and continue to apply, until an exposing device of the image forming section at a final stage finishes formation of a latent image, a voltage to the primary transfer member of at least one image forming section among the image forming sections other than the image forming section at the final stage.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 15, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventor: Yoshiaki Okano
  • Publication number: 20110217096
    Abstract: A fixing device includes a fixing belt comprising a first metal heat generating layer, a pressurizing unit which faces an outer circumference of the fixing belt, an induced current generating coil located within a hollow part of the fixing belt, a nip forming member which pressurizes the fixing belt to the pressurizing unit, and an auxiliary heat generating member located in a periphery of the fixing belt and comprising a second metal heat generating layer.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 8, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kazuhiko KIKUCHI, Satoshi Kinouchi, Shuji Yokoyama, Hiroyuki Kunugi, Hiroshi Nakayama, Yoshiaki Okano, Setsuo Takada, Toshihiro Sone
  • Publication number: 20110142474
    Abstract: According to one embodiment, an image forming apparatus includes an image forming unit configured to form a toner image on a first surface of a medium, a fixing unit configured to have a heating member which heats the first surface of the medium, and a pressurizing member which is pressed in contact with the heating member via the medium to heat a second surface of the medium, and a supply unit configured to supply a used medium to the image forming unit, a control unit configured to, when the used medium is supplied from the supply unit, control a fixing setting temperature of the pressurizing member to a temperature equal to or lower than a temperature for fixing on the unused medium, and control a fixing temperature of the heating member to a temperature equal to or higher than a temperature for fixing on the unused medium.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yasunari Miyazaki, Yukio Futamata, Norikazu Ochiai, Yoshiaki Okano, Setsuo Takada
  • Publication number: 20110135358
    Abstract: A fixing device includes a fixing belt comprising a first metal heat generating layer; a pressure section facing an outer periphery of the fixing belt; an induction current generating coil situated near a peripheral surface of the fixing belt; a nip forming member situated inside the fixing belt and applying pressure to the fixing belt toward the pressure section; and an auxiliary heat generating member situated inside the fixing belt, comprising a second metal heat generating layer, extending to a position facing the induction current generating coil, and comprising a projecting portion contacting the fixing belt.
    Type: Application
    Filed: November 22, 2010
    Publication date: June 9, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Kazuhiko Kikuchi, Satoshi Kinouchi, Shuji Yokoyama, Hiroyuki Kunugi, Hiroshi Nakayama, Yoshiaki Okano, Setsuo Takada, Toshihiro Sone
  • Publication number: 20110135359
    Abstract: According to one embodiment, a fixing device includes: a fixing belt comprising a first metal heat generating layer; a pressing unit opposing to the outer circumference of the fixing belt; an induction-current generating coil presented near the circumferential surface of the fixing belt; a nip forming member present on the inner side of the fixing belt and configured to press the fixing belt against the pressing unit; and an auxiliary heat generating member present in a heating region by the induction-current generating coil on the inner side of the fixing belt, having a second metal heat generating layer, and extending to the outer side of the heating region by the induction-current generating coil.
    Type: Application
    Filed: November 22, 2010
    Publication date: June 9, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba TEC Kabushiki Kaisha
    Inventors: Kazuhiko KIKUCHI, Satoshi KINOUCHI, Shuji YOKOYAMA, Hiroyuki KUNUGI, Hiroshi NAKAYAMA, Yoshiaki OKANO, Setsuo TAKADA, Toshihiro SONE
  • Publication number: 20110076043
    Abstract: A fixing device includes a belt that has an endless shape, a roller that forms a nip with the belt, a support member that supports the belt interposed between the support member and the roller, a coil that generates a magnetic field for inducing current in the belt, an auxiliary heat generation member that generates heat with the current induced by the magnetic field in the loop of the belt, and a temperature sensor that is opposed to the auxiliary heat generation member with the belt interposed between the element and the auxiliary heat generation member and detects the temperature of an outer peripheral surface of the belt.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 31, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Kazuhiko KIKUCHI, Satoshi Kinouchi, Shuji Yokoyama, Hiroyuki Kunugi, Hiroshi Nakayama, Yoshiaki Okano, Setsuo Takada, Toshihiro Sone
  • Publication number: 20110070006
    Abstract: A temperature equalizing roller includes a metal pipe, a heat pipe that is located inside the metal pipe and has a thermal expansion coefficient higher than that of the metal pipe, and a joining layer. The joining layer lies between an outer peripheral surface of the heat pipe and an inner peripheral surface of the metal pipe, joins the outer peripheral surface of the heat pipe and the inner peripheral surface of the metal pipe, and has a higher thermal conductivity than a thermal conductivity of air.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 24, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Toshihiro Sone, Kazuhiko Kikuchi, Satoshi Kinouchi, Hiroshi Nakayama, Hiroyuki Kunugi, Setsuo Takada, Shuji Yokoyama, Yoshiaki Okano
  • Publication number: 20090220287
    Abstract: An inlet guide having, on a recording media contact surface thereof, plural ribs inclining to a further inner side farther toward a recording media conveying direction is arranged upstream in a recording media conveying direction of a nip formed by a fixing roller and a pressing roller for heating and pressing a recording medium having a developer transferred thereon and the recording medium is brought into contact with the ribs of the inlet guide to guide the recording medium to the nip. The plural ribs are arranged such that an acute angle formed by center lines in a longitudinal direction of the plural ribs and a straight line parallel to a center line in width direction of a recording medium to be conveyed is equal to or larger than 5° and equal to or smaller than 20°.
    Type: Application
    Filed: February 24, 2009
    Publication date: September 3, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yoshiaki Okano, Noboru Furuyama
  • Patent number: 7496304
    Abstract: In a digital copying machine according to an image forming apparatus of the invention, when a “thick paper” mode is set through an operation panel, a main CPU sets a gradient of ? for “thick paper” in a ? correction unit of an image processing unit. Thus, a toner attachment amount is controlled and changed from 1.6 mg/cm2 to 1.0 mg/cm2, thereby widening a fixation temperature range for good fixation.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: February 24, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshiaki Okano, Masatsugu Hirayama
  • Patent number: 7233748
    Abstract: In a digital copying machine according to an image forming apparatus of the invention, when a “thick paper” mode is set through an operation panel, a main CPU sets a gradient of ? for “thick paper” in a ? correction unit of an image processing unit. Thus, a toner attachment amount is controlled and changed from 1.6 mg/cm2 to 1.0 mg/cm2, thereby widening a fixation temperature range for good fixation.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: June 19, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Yoshiaki Okano, Masatsugu Hirayama