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).

  • Patent number: 11492264
    Abstract: Seed crystals are crystals of zeolite to be attached onto a support in production of a zeolite membrane complex including the support and a zeolite membrane formed on the support. The specific surface area of the seed crystals is not smaller than 10 m2/g and not larger than 150 m2/g. The strength obtained from a crystal component at a diffraction angle 2? indicating a maximum peak in a range of diffraction angle 2? from 12° to 25° in an X-ray diffraction pattern obtained by emitting X-ray to the seed crystals is not less than once and not more than 30 times that obtained from an amorphous component. It is thereby possible to improve adherence of the seed crystals to the support.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 8, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryotaro Yoshimura, Aya Miura, Kenichi Noda
  • 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
  • Patent number: 10563767
    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: February 18, 2020
    Assignee: NOK CORPORATION
    Inventors: Kenichi Yoshimura, Yuki Sato, Nobuaki Yanagisawa
  • Publication number: 20190346675
    Abstract: An image display apparatus includes: a laser light source configured to emit laser light in accordance with an image; an optical deflector configured to deflect the laser light emitted by the laser light source; a to-be-scanned member configured to make an image diverge at a predetermined angle of divergence, the image being drawn with the laser light deflected by the optical deflector; and a housing forming a curved housing space for housing the to-be-scanned member. The housing houses the to-be-scanned member in the housing space to let the to-be-scanned member curve with a predetermined curvature.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 14, 2019
    Inventors: Kenichi YOSHIMURA, Noboru KUSUNOSE
  • Patent number: 10468563
    Abstract: A light-emitting device includes a light-emitting element that emits blue light, a Mn2+-activated ?-AlON phosphor and a Eu2+-activated ?-SiAlON phosphor that are excited by the blue light to emit green light, and a red phosphor that is excited by the blue light to emit red light. The weight ratio of the Mn2+-activated ?-AlON phosphor to the Eu2+-activated ?-SiAlON phosphor is from 20 to 75.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 5, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kenichi Yoshimura, Makoto Izumi, Hiroshi Fukunaga
  • Publication number: 20190310462
    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: Application
    Filed: April 5, 2019
    Publication date: October 10, 2019
    Inventors: Kenichi YOSHIMURA, Tomohiro NAKAJIMA
  • Publication number: 20190305195
    Abstract: The present invention facilitates production of a wavelength conversion member which is produced with use of a phosphor element containing a semiconductor nanoparticle phosphor. A phosphor element (10) includes semiconductor nanoparticle phosphors (11) dispersed in a matrix (12). An encapsulation body (13) has a thickness L and an inner diameter R which have therebetween a ratio of not more than 1, the phosphor element (10) has a particle size of 1 ?m to 30 ?m, and the phosphor element (10) is sealed in the wavelength conversion member while having a weight of not more than 0.8 g with respect to 1 g of a sealing material.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 3, 2019
    Inventors: Hiroshi FUKUNAGA, Tatsuya RYOHWA, Kanako NAKATA, Kenichi YOSHIMURA, Masatsugu MASUDA
  • Publication number: 20190299614
    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: Application
    Filed: September 22, 2017
    Publication date: October 3, 2019
    Applicant: KYOCERA Corporation
    Inventors: Takashi MIYAHARA, Wataru IKEUCHI, Hiroyuki KAWAMURA, Kenichi YOSHIMURA, Naoki KOBAYASHI
  • Patent number: 10408349
    Abstract: A seal ring includes, on a side of a sliding surface thereof, a groove part (120) having a first groove (121) extending in a circumferential direction thereof and a second groove (122) extending from a central position of the first groove (121) in the circumferential direction to an inner peripheral surface and guiding sealed fluid into the first groove (121), the first groove (121) having dynamic pressure generation grooves (121a) configured to have a groove bottom made shallower at an end thereof in the circumferential direction than at a center thereof in the circumferential direction, and a foreign matter catching groove (121b) that has a groove bottom deeper than the groove bottoms of the dynamic pressure generation grooves (121a) and is capable of catching foreign matter, and the first groove (121) being provided at a position that falls within a sliding region in which the seal ring slides on the lateral wall surface.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: September 10, 2019
    Assignee: NOK CORPORATION
    Inventors: Maiko Miyazaki, Yohei Sakai, Kenichi Yoshimura, Shota Toma