Patents by Inventor Hideaki Okamoto

Hideaki Okamoto 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: 11037525
    Abstract: A display system with high display quality in which display unevenness is reduced is provided. The display system includes a processing unit and a display portion. The processing unit generates second image data by using first image data. The display portion displays an image on the basis of the second image data. The processing unit includes three layers. The first image data is supplied to the first layer. The first image data contains a plurality of pieces of data. The plurality of pieces of data each correspond to any one of the plurality of pixels. The first layer generates first arithmetic data by making the number of data corresponding to one pixel larger than the number of the first image data by using the first image data. The second layer generates second arithmetic data by multiplying the first arithmetic data by a weight coefficient.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: June 15, 2021
    Inventors: Masataka Shiokawa, Natsuko Takase, Hideaki Okamoto, Kensuke Yoshizumi, Daiki Nakamura
  • Publication number: 20200126510
    Abstract: A display system with high display quality in which display unevenness is reduced is provided. The display system includes a processing unit and a display portion. The processing unit generates second image data by using first image data. The display portion displays an image on the basis of the second image data. The processing unit includes three layers. The first image data is supplied to the first layer. The first image data contains a plurality of pieces of data. The plurality of pieces of data each correspond to any one of the plurality of pixels. The first layer generates first arithmetic data by making the number of data corresponding to one pixel larger than the number of the first image data by using the first image data. The second layer generates second arithmetic data by multiplying the first arithmetic data by a weight coefficient.
    Type: Application
    Filed: June 14, 2018
    Publication date: April 23, 2020
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masataka SHIOKAWA, Natsuko TAKASE, Hideaki OKAMOTO, Kensuke YOSHIZUMI, Daiki NAKAMURA
  • Patent number: 10607575
    Abstract: A novel display system is provided. The display system includes a display portion and a control portion. The control portion includes a controller and a memory device. The display portion has a function of displaying an image. The controller has a function of outputting a signal for controlling a refresh rate of the image. The memory device has a function of storing data including data indicating a recognition state of the image and data on whether a flicker is recognized in the recognition state by a user or not. The controller has a function of changing the refresh rate of the image with reference to the data stored in the memory device when data on whether a flicker is recognized or not is input by the user.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 31, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yuji Iwaki, Hideaki Okamoto
  • Patent number: 10350883
    Abstract: liquid discharge apparatus includes a liquid discharge head including a plurality of electrodes arranged in parallel, a common electrode positioned to face the liquid discharge head, and a control unit configured to control a voltage to be applied to each of the plurality of electrodes to control the plurality of electrodes as a discharging electrode, which is to discharge a liquid, or as a non-discharging electrode, which is to discharge no liquid, wherein the control unit adjusts a value of the voltage to be applied to the electrode that is to be driven as the non-discharging electrode, based on the voltage to be applied to the electrode adjacent to the electrode that is to be driven as the non-discharging electrode.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Yamamoto, Hideaki Okamoto, Junji Yasuda, Koji Inoue
  • Publication number: 20180096670
    Abstract: A novel display system is provided. The display system includes a display portion and a control portion. The control portion includes a controller and a memory device. The display portion has a function of displaying an image. The controller has a function of outputting a signal for controlling a refresh rate of the image. The memory device has a function of storing data including data indicating a recognition state of the image and data on whether a flicker is recognized in the recognition state by a user or not. The controller has a function of changing the refresh rate of the image with reference to the data stored in the memory device when data on whether a flicker is recognized or not is input by the user.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 5, 2018
    Inventors: Yuji IWAKI, Hideaki OKAMOTO
  • Publication number: 20180029359
    Abstract: liquid discharge apparatus includes a liquid discharge head including a plurality of electrodes arranged in parallel, a common electrode positioned to face the liquid discharge head, and a control unit configured to control a voltage to be applied to each of the plurality of electrodes to control the plurality of electrodes as a discharging electrode, which is to discharge a liquid, or as a non-discharging electrode, which is to discharge no liquid, wherein the control unit adjusts a value of the voltage to be applied to the electrode that is to be driven as the non-discharging electrode, based on the voltage to be applied to the electrode adjacent to the electrode that is to be driven as the non-discharging electrode.
    Type: Application
    Filed: July 31, 2017
    Publication date: February 1, 2018
    Inventors: Ryuji Yamamoto, Hideaki Okamoto, Junji Yasuda, Koji Inoue
  • Publication number: 20170327333
    Abstract: A sheet feeding apparatus includes an endless attraction member (200) attracting a sheet and rotating, and the attraction member (200) includes a plurality of electrode pattern areas. Each of the electrode pattern areas includes first and second electrodes (510 and 511) supplied the voltages from a power feed portion respectively. The electrode pattern areas are arrayed in the circumferential direction in such a manner that the electrode pattern areas are electrically insulated each other, and each circumferential direction length of the electrode pattern areas is set shorter than a circumferential direction length, between the power feed portion and the discharge portion, of the attraction member.
    Type: Application
    Filed: January 8, 2016
    Publication date: November 16, 2017
    Applicant: Canon Kabushiki Kaisha
    Inventors: Hideaki Okamoto, Takeshi Aoyama, Takashi Hiratsuka, Isao Hayashi, Takaaki Aoyagi, Yasumi Yoshida, Hisae Shimizu
  • Patent number: 9385334
    Abstract: An object of the present invention is to provide an organic EL light-emitting device in which a permeation and diffusion of moisture from outside are prevented and a stable light-emitting characteristic is able to be maintained for a long period. The present invention relates to an organic EL light-emitting device comprising a sealing layer, a hygroscopic layer and a protective layer, which are aligned on the back of an organic electroluminescence element under a predetermined condition, wherein the sealing layer and the protective layer are constituted from a specific material, whereby it is possible to maintain a stable light-emitting characteristic for a long period together with suppressing the deterioration caused by moisture being permeated from outside.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 5, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keiko Saitou, Yoshimasa Bando, Atsushi Takahashi, Hideaki Okamoto
  • Patent number: 9372439
    Abstract: A developing device includes a developing member, a toner supplying member, and a carrier recovering member configured to recover magnetic carrier particles from the toner supplying member. An outer surface of the toner supplying member includes a plurality of protrusion portions with a regular interval between adjacent protrusion portions. The regular interval is equal to or larger than a particle diameter of a toner particle having an average particle diameter from among the particle diameters of the toner particles and smaller than a carrier particle diameter of a magnetic carrier particle having an average particle diameter from among the particle diameters of the magnetic carrier particles. The protrusion portions protrude from the remainder of the outer surface of the toner supplying member with a height that is smaller than the average particle diameter of the toner particles.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: June 21, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenta Kubo, Tatsuya Tada, Satoru Yamanaka, Hideaki Okamoto
  • Patent number: 9366988
    Abstract: A developing device configured to develop an electrostatic image includes a developing member and a carrier recovering member. An outer surface of the developing member includes a plurality of protrusion portions which extend in a direction intersecting a toner particle carrying direction and are aligned with a regular interval between adjacent protrusion portions. The regular interval is equal to or larger than a particle diameter of a toner particle having an average particle diameter from among the toner particles and smaller than a carrier particle diameter of a magnetic carrier particle having an average particle diameter from among the magnetic carrier particles. The protrusion portions protrude from the outer surface of the developing member with a height that is smaller than the average particle diameter of the toner particles, and the developing member contacts with the image bearing member at a developing portion.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 14, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenta Kubo, Hideaki Okamoto, Satoru Yamanaka, Tatsuya Tada
  • Publication number: 20150227077
    Abstract: A toner bearing member has a plurality of convex portions formed on the surface thereof and extended in a direction crossing a developer carrying direction. An opening width between the adjacent convex portions in the developer carrying direction is equal to or greater than a particle diameter of a toner and less than a particle diameter of a carrier. The convex portion has a height equal to or less than the particle diameter of the toner 11. At a developing portion at which the toner bearing member and an image bearing member face each other to develop an electrostatic image, the toner bearing member and the image bearing member are moved so as to have a relative velocity difference.
    Type: Application
    Filed: January 15, 2015
    Publication date: August 13, 2015
    Inventors: Kenta Kubo, Hideaki Okamoto, Satoru Yamanaka, Tatsuya Tada
  • Publication number: 20150227078
    Abstract: Provided is a developing device including a toner carrying member which carries a toner, a toner supplying member which transports the toner to the toner carrying member, wherein an outer layer surface of the toner supplying member includes a plurality of protrusion portions which extend in a direction intersecting a toner transporting direction, an aperture width in the toner transporting direction between the adjacent protrusion portions is equal to or larger than a particle diameter of the toner and smaller than a particle diameter of the carrier, and a height of the protrusion portions is equal to or smaller than the particle diameter of the toner, and wherein the toner supplying member and the toner carrying member are movable so as to have a relative velocity difference in a toner supplying portion where the toner is supplied from the toner supplying member to the toner carrying member.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 13, 2015
    Inventors: Kenta Kubo, Tatsuya Tada, Satoru Yamanaka, Hideaki Okamoto
  • Patent number: 9104142
    Abstract: The developing device includes a developing container that stores a developer including a non-magnetic toner and a magnetic carrier, a toner bearing member that bears the toner and conveys the toner to a developing portion and a separating portion wherein a surface of the toner bearing member includes a plurality of recess structures. A percentage of the recess structures per unit area in a toner bearing region of the toner bearing member is equal to or larger than 55%.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: August 11, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kenta Kubo, Tatsuya Tada, Satoru Yamanaka, Hideaki Okamoto
  • Patent number: 8862001
    Abstract: An image forming apparatus includes a first image bearing member, a second image bearing member, a developing device for forming a toner image on the basis of an electrostatic latent image formed on the first image bearing member, and an electrostatic latent image forming portion for forming an electrostatic latent image mark on the first image bearing member. In addition, a detecting portion detects a position of the electrostatic latent image mark, and an adjusting portion adjusts, on the basis of a detection result of the position of the electrostatic latent image mark, superposition between the toner image formed on the first image bearing member and the toner image formed on the second image bearing member. An electrostatic latent image which is undetectable by the detecting portion is formed between a formation region of the toner image on the first image bearing member and a formation region of the electrostatic latent image mark on the first image bearing member.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: October 14, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideaki Okamoto
  • Publication number: 20140161493
    Abstract: The developing device includes: a developing container that stores a developer including a non-magnetic toner and a magnetic carrier; a toner bearing member that bears the toner and conveys the toner to a developing portion; and a separating portion wherein a surface of the toner bearing member includes a plurality of recess structures in which a smallest opening width R is equal to or larger than rt10 and equal to or smaller than rc10, and a depth D is equal to or larger than rt10/2, where rt10 is a particle diameter in which an accumulated number distribution in a toner granularity distribution is 10%, and rc10 is a particle diameter in which an accumulated number distribution in a carrier granularity distribution is 10%; and a percentage of the recess structures per unit area in a toner bearing region of the toner bearing member is equal to or larger than 55%.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenta Kubo, Tatsuya Tada, Satoru Yamanaka, Hideaki Okamoto
  • Publication number: 20140151671
    Abstract: An object of the present invention is to provide an organic EL light-emitting device in which a permeation and diffusion of moisture from outside are prevented and a stable light-emitting characteristic is able to be maintained for a long period. The present invention relates to an organic EL light-emitting device comprising a sealing layer, a hygroscopic layer and a protective layer, which are aligned on the back of an organic electroluminescence element under a predetermined condition, wherein the sealing layer and the protective layer are constituted from a specific material, whereby it is possible to maintain a stable light-emitting characteristic for a long period together with suppressing the deterioration caused by moisture being permeated from outside.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keiko SAITOU, Yoshimasa Bando, Atsushi Takahash, Hideaki Okamoto
  • Patent number: 8685712
    Abstract: A biochemical processing apparatus for performing biochemical processing in a container having a plurality of wells capable of holding liquid includes an opening/closing mechanism configured to open or close a lid capable of hermetically and selectively sealing the plurality of wells.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideaki Okamoto
  • Patent number: 8668224
    Abstract: Provided are a check valve for an airbag and an airbag device that can improve the reproducibility of the flow path blocking function while reducing the resistance upon inflation and deployment of the airbag and that can be applied to a place where a flow path is divided into a plurality of flow paths. A first embodiment of an airbag device according to the present invention has an airbag that is normally folded and that is inflated and deployed in an emergency, and an inflator that supplies gas to the airbag. The airbag has a plurality of inflation chambers, a duct portion disposed so as to connect the plurality of inflation chambers, and a check valve for an airbag having a tubular portion sewn to the duct portion, and tongue-shaped portions formed at the tip of the tubular portion.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: March 11, 2014
    Assignee: Takata Corporation
    Inventors: Masayuki Taniguchi, Masahiro Hasebe, Hideaki Okamoto
  • Patent number: D846544
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 23, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideaki Okamoto
  • Patent number: D847134
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 30, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideaki Okamoto