Patents by Inventor Kenichi Yoshimura

Kenichi Yoshimura 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).

  • Publication number: 20240119215
    Abstract: For example, an I/O circuit is formed by freely combining a plurality of kinds of standard cells included in a cell library. The plurality of kinds of standard cells include at least first standard cells and a second standard cell. The first standard cells include first protection elements and a first power line formed in a region over the first protection elements to conduct to the first protection elements. The second standard cell includes a second protection element formed in a layout identical with that of the first protection elements, and a second power line formed in a region over the second protection element to conduct to the second protection element while being isolated from the first power line.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 11, 2024
    Inventors: Kenichi YOSHIMURA, Hiromitsu KIMURA, Tomokazu OKADA, Yuji KUROTSUCHI
  • Patent number: 11905954
    Abstract: An electric pump includes a housing that includes a gear chamber, a rotor chamber, and a motor chamber. The electric pump includes a first seal member, a second seal member, and a third seal member. The first seal member seals a space between the gear chamber and the rotor chamber. The second seal member seals the space between the gear chamber and the rotor chamber. The third seal member seals a space between the gear chamber and the motor chamber. The third seal member seals the space between the gear chamber and the motor chamber to a lesser extent than the first seal member and the second seal member seal the space between the gear chamber and the rotor chamber.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: February 20, 2024
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NOK CORPORATION
    Inventors: Tatsushi Mori, Shintaro Kashiwa, Daisuke Masaki, Kenichi Yoshimura
  • Publication number: 20240035573
    Abstract: A sealing device includes a metal retaining ring annular around an axis, a seal lip annular around the axis, and an electroconductive lip annular around the axis. The seal lip is fixed, on an outer peripheral side, to the retaining ring. The seal lip includes a seal extending obliquely relative to the axis, forming an end on an inner peripheral side, and including a first inner peripheral surface. The first inner peripheral surface contacts an inner-peripheral-side member. The electroconductive lip is fixed, on an outer peripheral side, to the retaining ring. The electroconductive lip includes a contact point extending obliquely relative to the axis, forming an end on an inner peripheral side, and including a second inner peripheral surface. The second inner peripheral surface contacts the inner-peripheral-side member. The seal lip and the electroconductive lip are spaced from each other at least at the seal and the contact point.
    Type: Application
    Filed: January 26, 2022
    Publication date: February 1, 2024
    Inventor: Kenichi YOSHIMURA
  • Publication number: 20230420446
    Abstract: A semiconductor device includes a semiconductor layer having a principal surface, a first-conductivity-type well region formed at a surface layer portion of the principal surface of the semiconductor layer, a first-conductivity-type first impurity region that is formed at a surface layer portion of the well region and that has an inner wall portion, and a second-conductivity-type annular second impurity region formed at the surface layer portion of the well region on a more inward side than the inner wall portion such that a pn junction portion is formed between the well region and the second impurity region.
    Type: Application
    Filed: October 21, 2021
    Publication date: December 28, 2023
    Applicant: ROHM CO., LTD.
    Inventor: Kenichi YOSHIMURA
  • Patent number: 11832466
    Abstract: An electroluminescent element according to an aspect of the disclosure includes: a pair of a cathode electrode and an anode electrode; a light-emitting layer provided between the cathode electrode and the anode electrode; an electron transport layer provided between the cathode electrode and the light-emitting layer; and a hole transport layer provided between the anode electrode and the light-emitting layer. The light-emitting layer includes ZnSe-based quantum dots including ZnSe and one of the electron transport layer and the hole transport layer is composed of ZnO particles having an average particle size of 3 nm or greater and 30 nm or less.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 28, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tadashi Kobashi, Kenichi Yoshimura, Masashi Kago, Noboru Iwata
  • Patent number: 11737295
    Abstract: An electroluminescent element according to an aspect of the disclosure includes: a pair of a cathode electrode and an anode electrode; a light-emitting layer provided between the cathode electrode and the anode electrode; an electron transport layer provided between the cathode electrode and the light-emitting layer; and a hole transport layer provided between the anode electrode and the light-emitting layer. The light-emitting layer includes ZnSe-based quantum dots including ZnSe and one of the electron transport layer and the hole transport layer is composed of ZnO particles having an average particle size of 3 nm or greater and 30 nm or less.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: August 22, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tadashi Kobashi, Kenichi Yoshimura, Masashi Kago, Noboru Iwata
  • Publication number: 20230013062
    Abstract: An authentication system includes first and second authentication devices. The first authentication device judges whether a relationship between a first similarity based on a captured image and a registered image between a subject of authentication that is a person in the captured image and a subject of comparison that is a person in the registered image by the first authentication device. When it is judged that a predetermined condition is satisfied, the first authentication device instructs a second authentication device to perform identification authentication.
    Type: Application
    Filed: November 15, 2021
    Publication date: January 19, 2023
    Applicant: JAPAN COMPUTER VISION CORP.
    Inventors: Lidong MA, Gaku TAKEDA, Chikashi OKAMOTO, Kenichi YOSHIMURA
  • Patent number: 11531199
    Abstract: A light reflection device is provided with a light source configured to emit irradiation light, a reflector configured to reflect the irradiation light emitted from the light source, a housing, and a holder attached to the housing to hold the reflector. The holder is configured to restrict a movement of the reflector and allows a size of the reflector to change in contrast with the holder. A mobile object is provided with the light reflection device, a screen on which an image is formed by the irradiation light reflected by the reflector, a front windshield configured to reflect the irradiation light diverged and projected through the screen, and an imaging optical system configured to project the irradiation light emitted from the screen toward the front windshield.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: December 20, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Jumpei Okamura, Kenichi Yoshimura, Tomohiro Nakajima
  • Publication number: 20220344548
    Abstract: A light-emitting element according to the disclosure includes an anode electrode, a cathode electrode, and a first light-emitting layer that includes a plurality of first quantum dots and emits light of a first color. The first light-emitting layer is provided between the anode electrode and the cathode electrode, and each of the plurality of first quantum dots includes a compound containing each of three elements of Zn, Se, and Te. A combination of an average particle size of the plurality of first quantum dots and a composition ratio of the three elements is selected such that the peak wavelength of a light emission spectrum of the first light-emitting layer is greater than 394 nm and equal to or less than 474 nm.
    Type: Application
    Filed: October 1, 2019
    Publication date: October 27, 2022
    Inventors: KENICHI YOSHIMURA, TADASHI KOBASHI, TATSUYA RYOHWA, MAKOTO IZUMI
  • Patent number: 11398532
    Abstract: A light-emitting device includes: an anode electrode; a cathode electrode; a plurality of light-emitting layers sandwiched between the anode electrode and the cathode electrode; and a light absorption layer disposed between the plurality of light-emitting layers and a light extraction surface, wherein the plurality of light-emitting layers include InP based quantum dots and are configured to emit at least green color of light and red color of light, and the light absorption layer selectively absorbs light at 570 to 610 nm.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 26, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kenichi Yoshimura, Tadashi Kobashi, Masashi Kago, Tatsuya Ryohwa, Makoto Izumi
  • Publication number: 20220186728
    Abstract: An electric pump includes a housing that includes a gear chamber, a rotor chamber, and a motor chamber. The electric pump includes a first seal member, a second seal member, and a third seal member. The first seal member seals a space between the gear chamber and the rotor chamber. The second seal member seals the space between the gear chamber and the rotor chamber. The third seal member seals a space between the gear chamber and the motor chamber. The third seal member seals the space between the gear chamber and the motor chamber to a lesser extent than the first seal member and the second seal member seal the space between the gear chamber and the rotor chamber.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, NOK CORPORATION
    Inventors: Tatsushi MORI, Shintaro KASHIWA, Daisuke MASAKI, Kenichi YOSHIMURA
  • Publication number: 20210313534
    Abstract: An electroluminescent element according to an aspect of the disclosure includes: a pair of a cathode electrode and an anode electrode; a light-emitting layer provided between the cathode electrode and the anode electrode; an electron transport layer provided between the cathode electrode and the light-emitting layer; and a hole transport layer provided between the anode electrode and the light-emitting layer. The light-emitting layer includes ZnSe-based quantum dots including ZnSe and one of the electron transport layer and the hole transport layer is composed of ZnO particles having an average particle size of 3 nm or greater and 30 nm or less.
    Type: Application
    Filed: August 3, 2018
    Publication date: October 7, 2021
    Inventors: TADASHI KOBASHI, KENICHI YOSHIMURA, MASASHI KAGO, NOBORU IWATA
  • Patent number: 11104131
    Abstract: A liquid discharge head includes a flow channel member that includes discharge holes, pressurizing chambers that are linked to the discharge holes, respectively, a first common flow channel(s) that is/are commonly linked to the pressurizing chambers, a second common flow channel(s) that is/are commonly linked to the pressurizing chambers, a first flow channel that links the pressurizing chambers and the first common flow channel(s), and a second flow channel that links the pressurizing chambers and the second common flow channel(s), and pressurizing parts that pressurize the pressurizing chambers, respectively, wherein the first flow channel includes a first connection flow channel that connects the first common flow channel(s) and first separate flow channels that are linked to one of the pressurizing chambers, and one of the first common flow channel(s) includes sets that are composed of the first connection flow channel and the first separate flow channels.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 31, 2021
    Assignee: KYOCERA CORPORATION
    Inventors: Wataru Ikeuchi, Kenichi Yoshimura
  • Patent number: 11079627
    Abstract: A liquid crystal display device includes: a liquid crystal display panel that includes red color filters, green color filters, and blue color filters; and an illumination device that illuminates the liquid crystal display panel with white light. The illumination device includes light-emitting elements that emit blue light, a green phosphor that absorbs a portion of the blue light emitted from the light-emitting elements and then emits green light, and a red phosphor that absorbs a portion of the blue light emitted from the light-emitting elements and then emits red light. The blue color filters are made of a colored material that contains a dye, and the chromaticity values x and y of the white light emitted from the illumination device satisfy the relationships 0.24<x and 0.24<y.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 3, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masatsugu Masuda, Hideaki Fujii, Takeshi Kawahara, Toshiyuki Tanaka, Kenichi Yoshimura, Makoto Yoshimura, Masataka Miyata, Takehiro Shiomoto
  • Publication number: 20210157137
    Abstract: A light reflection device is provided with a light source configured to emit irradiation light, a reflector configured to reflect the irradiation light emitted from the light source, a housing, and a holder attached to the housing to hold the reflector. The holder is configured to restrict a movement of the reflector and allows a size of the reflector to change in contrast with the holder. A mobile object is provided with the light reflection device, a screen on which an image is formed by the irradiation light reflected by the reflector, a front windshield configured to reflect the irradiation light diverged and projected through the screen, and an imaging optical system configured to project the irradiation light emitted from the screen toward the front windshield.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 27, 2021
    Inventors: Jumpei OKAMURA, Kenichi YOSHIMURA, Tomohiro NAKAJIMA
  • Publication number: 20210020699
    Abstract: A light-emitting device includes: an anode electrode; a cathode electrode; a plurality of light-emitting layers sandwiched between the anode electrode and the cathode electrode; and a light absorption layer disposed between the plurality of light-emitting layers and a light extraction surface, wherein the plurality of light-emitting layers include InP based quantum dots and are configured to emit at least green color of light and red color of light, and the light absorption layer selectively absorbs light at 570 to 610 nm.
    Type: Application
    Filed: March 28, 2018
    Publication date: January 21, 2021
    Inventors: KENICHI YOSHIMURA, TADASHI KOBASHI, MASASHI KAGO, TATSUYA RYOHWA, MAKOTO IZUMI
  • Patent number: 10895739
    Abstract: An optical scanning device includes: a light source; a scanning unit configured to deflect light from the light source in a main scanning direction to scan a scanned area with light; an optical member configured to guide light from the light source to the scanning unit; a casing holding the light source and the optical member; and an attaching part disposed between the optical member and the casing to attach a part of the optical member to the casing, wherein a direction in which the attaching part is interposed aligns with a direction corresponding to the main scanning direction of the scanning unit.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 19, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Kenichi Yoshimura, Tomohiro Nakajima
  • Patent number: 10751994
    Abstract: A first flow path member of a liquid ejection head includes a plurality of pressurizing chambers respectively connected to a plurality of ejection holes, a plurality of first individual flow paths and a plurality of second individual flow paths which are respectively connected to the plurality of pressurizing chambers, and a first common flow path connected in common to the plurality of first individual flow paths and the plurality of second individual flow paths. The pressurizing chamber, the first individual flow path, the first common flow path, and the second individual flow path configure an annular flow path. When T0 denotes a resonance period of the pressurizing chamber and T1 denotes a time required for a pressure wave to circulate once around the annular flow path, a decimal place value of T1/T0 is ? to ?.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 25, 2020
    Assignee: Kyocera Corporation
    Inventors: Takashi Miyahara, Wataru Ikeuchi, Hiroyuki Kawamura, Kenichi Yoshimura, Naoki Kobayashi
  • Publication number: 20200254760
    Abstract: A liquid discharge head includes a flow channel member that includes discharge holes, pressurizing chambers that are linked to the discharge holes, respectively, a first common flow channel(s) that is/are commonly linked to the pressurizing chambers, a second common flow channel(s) that is/are commonly linked to the pressurizing chambers, a first flow channel that links the pressurizing chambers and the first common flow channel(s), and a second flow channel that links the pressurizing chambers and the second common flow channel(s), and pressurizing parts that pressurize the pressurizing chambers, respectively, wherein the first flow channel includes a first connection flow channel that connects the first common flow channel(s) and first separate flow channels that are linked to one of the pressurizing chambers, and one of the first common flow channel(s) includes sets that are composed of the first connection flow channel and the first separate flow channels.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 13, 2020
    Applicant: KYOCERA Corporation
    Inventors: Wataru IKEUCHI, Kenichi YOSHIMURA
  • Patent number: 10605368
    Abstract: A sealing apparatus sealing a gap between two members mutually relatively rotatable about an axis in an internal combustion engine, the sealing apparatus comprises an elastic body portion. The elastic body portion is an elastic body including an annular attaching portion attached to one of the two members and centered about the axis, and a seal portion in close contact with another of the two members in a manner in which the other of the two members is slidable. The seal portion includes an annular seal lip portion centered about the axis and an annular dust lip centered about the axis on an atmospheric side on an opposite side of a sealed fluid side with respect to the seal lip portion. The seal lip portion includes a lip tip portion which is an annular projecting body projecting toward the axis and grease is applied to the seal lip portion. The grease contains at least one of a synthetic hydrocarbon oil and a mineral oil as a base oil and has a low temperature starting torque of 25 N·cm or less at ?30° C.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 31, 2020
    Assignee: NOK CORPORATION
    Inventors: Kenichi Yoshimura, Yuki Sato, Nobuaki Yanagisawa