Patents by Inventor Masahiro Ogawa

Masahiro Ogawa 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: 20210131413
    Abstract: A capacity control valve includes a CS valve which opens and closes a communication between the control fluid and the suction fluid by the movement of rods and an urging member configured to urge the primary valve body and the rods in opposite directions and the primary valve body and the rods are disposed so as to be relatively movable in an axial direction.
    Type: Application
    Filed: July 9, 2019
    Publication date: May 6, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210123423
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, and a control port and a primary valve including a primary valve seat and a primary valve body driven by a solenoid, the primary valve being configured to open and close a communication between the discharge port and the control port in accordance with a movement of the primary valve body. The capacity control valve further includes a differential CS valve which is openable and closable by a pressure difference between the control pressure Pc and the suction pressure Ps and an electromagnetic CS valve that is openable and closable so as to close the control port and the suction port in a non-energized state of the solenoid 80 in accordance with the movement of the primary valve body.
    Type: Application
    Filed: July 9, 2019
    Publication date: April 29, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210123422
    Abstract: A capacity control valve includes a valve housing provided with a discharge port, suction ports, a control port and a primary valve driven by a solenoid. The capacity control valve further includes a differential CS valve which includes a differential CS valve body disposed so as to be relatively movable in an axial direction with respect to the primary valve bodies. The differential CS valve body divides a control pressure chamber into a discharge side control chamber communicating with the first control port and a suction side control chamber communicating with the second control port in the axial direction and operates the differential CS valve body by a differential pressure between the discharge side control chamber and the suction side control chamber so as to open the second control port and the suction port.
    Type: Application
    Filed: July 9, 2019
    Publication date: April 29, 2021
    Inventors: Masahiro HAYAMA, Kohei FUKUDOME, Takahiro EJIMA, Daichi KURIHARA, Wataru TAKAHASHI, Keigo SHIRAFUJI, Yoshihiro OGAWA
  • Publication number: 20210115192
    Abstract: A polyimide resin has an acid dianhydride-derived structure and a diamine-derived structure, the acid dianhydride contains an acid dianhydride represented by the general formula (1) and a fluorine-containing aromatic acid dianhydride, and the diamine contains a fluoroalkyl-substituted benzidine. In the general formula (1), n is an integer of 1 or more, and R1 to R4 are each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or a perfluoroalkyl group having 1 to 20 carbon atoms. The content of the acid dianhydride represented by the general formula (1) may be 10 to 65 mol %, and the content of the fluorine-containing aromatic acid dianhydride may be 30 to 80 mol %, based on 100 mol % of the total of the acid dianhydride.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Applicant: KANEKA CORPORATION
    Inventors: Takahiro Yasumoto, Dong Zhang, Hiroyuki Ushiro, Yasutaka Kondo, Kohei Ogawa, Masahiro Miyamoto
  • Publication number: 20210082513
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a first and second string each including cells coupled in series, and a memory controller configured to instruct the device to execute a write operation for writing data on any one of the cells in the first or second string. The first and second string are coupled in parallel between a bit line and a source line, and coupled to different word lines. The write operation includes a first write operation and a second write operation executed after the first write operation. The controller is configured to instruct the device to execute a first write operation on a second cell in the second string between a first write operation on a first cell in the first string and a second write operation on the first cell.
    Type: Application
    Filed: March 11, 2020
    Publication date: March 18, 2021
    Applicant: Kioxia Corporation
    Inventors: Masahiro OGAWA, Norio AOYAMA
  • Publication number: 20200411679
    Abstract: A nitride semiconductor device includes: a substrate having a first main surface and a second main surface; a first nitride semiconductor layer of a first conductivity type provided above the first main surface; a second nitride semiconductor layer of a second conductivity type provided above the first nitride semiconductor layer; a first opening which penetrates through the second nitride semiconductor layer to the first nitride semiconductor layer; an electron transport layer provided above the second nitride semiconductor layer and on an inner surface of the first opening; a gate electrode provided above the electron transport layer and covering the first opening; a source electrode connected to the second nitride semiconductor layer; a drain electrode provided on a second main surface-side of the substrate; and a high-resistance layer provided between the second nitride semiconductor layer and the electron transport layer in the first opening, the high-resistance layer including a nitride semiconductor.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Inventors: Masahiro OGAWA, Daisuke SHIBATA, Satoshi TAMURA
  • Patent number: 10845689
    Abstract: A light source unit includes a first light source for emitting light in a first wavelength range, a luminescent wheel including a second light source for emitting light in a second wavelength range and a third light source for emitting light in a third wavelength range whose wavelength differs from that of the light in the second wavelength range, which are disposed circumferentially end to end in an adjacent fashion, a fourth light source for emitting light in a fourth wavelength range similar in color system to the light in the second or third wavelength range, and a control unit for controlling the fourth light source and the luminescent wheel to illuminate the fourth light source during a first color mixing period when a boundary between the second and third light sources is situated on an optical path of the light in the first wavelength range.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 24, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro Ogawa
  • Patent number: 10818815
    Abstract: A semiconductor relay includes: a light-emitting element; and a light-receiving element facing the light-emitting element. The light-receiving element includes: a substrate; a semiconductor layer having a direct transition type, the semiconductor layer being disposed on the substrate and having a semi-insulating property; a first electrode having at least a part in contact with the semiconductor layer; and a second electrode having at least a part in contact with either one of the semiconductor layer and the substrate, in a position separated from the first electrode. The semiconductor layer is reduced in resistance by absorbing light from the light-emitting element.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: October 27, 2020
    Assignee: PANASONIC CORPORATION
    Inventors: Daisuke Shibata, Satoshi Tamura, Shinji Ujita, Nanako Hirashita, Masahiro Ogawa, Ryo Kajitani
  • Publication number: 20200314394
    Abstract: A light source device includes: a first light emitting element that emits first wavelength band light; a fluorescence wheel including a fluorescence emission region with which fluorescence excited by the first wavelength band light is emitted as second wavelength band light; a second light emitting element that emits third wavelength band light; a combining unit that combines the first wavelength band light, the second wavelength band light, and the third wavelength band light; a color wheel; and a CPU that controls the first light emitting element, the second light emitting element, the fluorescence wheel, and the color wheel, wherein the CPU performs synchronization control on the fluorescence wheel and the color wheel, and performs control to shift a synchronization position of the color wheel with respect to the fluorescence wheel in accordance with an output mode.
    Type: Application
    Filed: February 26, 2020
    Publication date: October 1, 2020
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Hiroki MASUDA, Masahiro OGAWA, Osamu UMAMINE, Tetsuro NARIKAWA
  • Patent number: 10754235
    Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel and a mirror. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a reflection area reflecting the light of the first wavelength band. The minor reflects a component in a first polarization direction of the light of the first wavelength band and transmits a component in a second polarization direction orthogonal to the first polarization direction. The reflection area includes a reflecting surface and a polarization conversion layer including an optical axis and converts either the first or second polarization direction to another polarization direction. The optical axis of the polarization conversion layer is inclined by 45 degrees to a polarization direction of the light of the first wavelength band at an irradiation position thereof in the fluorescent wheel.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 25, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro Ogawa
  • Patent number: 10688580
    Abstract: This welded structure member includes a base metal member including a first surface and a second surface; a joined metal member including an abutting surface of which an end surface abuts onto the first surface; a weld bead which is formed on the first surface; and a weld overlay section which is formed on the second surface of the base metal member, in which the weld bead includes a weld bead end section in a position which is separated to the front of the abutting end section.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: June 23, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Masahiro Ogawa, Shoko Oami, Shinji Kodama
  • Patent number: 10649323
    Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel, a dichroic mirror, a reflection member and a polarization conversion element. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a transmission area transmitting the light of the first wavelength band. The dichroic mirror reflects the light of the first wavelength band a first polarization direction, transmits the light in a second polarization direction, and transmits or reflects the fluorescent light. The reflection member reflects the light transmitted through the transmission area toward the transmission area. The polarization conversion element is disposed between the fluorescent wheel and the reflection member, transmits the lights transmitted through the transmission area and reflected by the reflection member, and converts the light in the first polarization direction into the second polarization direction.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 12, 2020
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro Ogawa
  • Publication number: 20200006617
    Abstract: A thermoelectric element-containing package according to one aspect of the present disclosure includes a thermoelectric conversion module including: a first substrate having first and second main surfaces; a second substrate having third and fourth main surfaces; and a plurality of thermoelectric elements that are sandwiched between the first and second substrates and arranged along the second main surface and the third main surface. The thermoelectric element-containing package further includes: a frame joined to the first and second substrates so as to form a hermetically sealed space surrounding the plurality of thermoelectric elements and disposed between the first substrate and the second substrate; and a placement member that is disposed on the first main surface of the first substrate or the fourth main surface of the second substrate and to which an additional device is to be connected.
    Type: Application
    Filed: February 14, 2018
    Publication date: January 2, 2020
    Inventors: Masahiro OGAWA, Tetsuya KATO, Takayuki HACHIDA
  • Patent number: 10460236
    Abstract: A neural network learning device includes a learning unit configured to perform a learning process that learns a neural network using a plurality of learning data sets. The learning process includes a data reading process, a synaptic weight correction process, a neuron generation process, and a neuron removal process. The neural network learning device includes an intermediate layer generation unit configured to perform an intermediate layer generation process. The intermediate layer generation process newly generates an additional intermediate layer including at least one neuron as an intermediate layer of the neural network when a loss function is greater than a predetermined second threshold value after the learning process is performed. When the additional intermediate layer is newly generated by the intermediate layer generation process, the learning unit performs the learning process again, using the neural network in which the additional intermediate layer has been generated.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masahiro Ogawa
  • Publication number: 20190326465
    Abstract: A semiconductor relay includes: a light-emitting element; and a light-receiving element facing the light-emitting element. The light-receiving element includes: a substrate; a semiconductor layer having a direct transition type, the semiconductor layer being disposed on the substrate and having a semi-insulating property; a first electrode having at least a part in contact with the semiconductor layer; and a second electrode having at least a part in contact with either one of the semiconductor layer and the substrate, in a position separated from the first electrode. The semiconductor layer is reduced in resistance by absorbing light from the light-emitting element.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Applicant: PANASONIC CORPORATION
    Inventors: Daisuke Shibata, Satoshi Tamura, Shinji Ujita, Nanako Hirashita, Masahiro Ogawa, Ryo Kajitani
  • Patent number: 10432898
    Abstract: There is provided a projector including a plurality of laser diodes and a rectangular display device on to which light emitted from the plurality of laser diodes is shone, wherein the display device is disposed so that a direction of a major axis of an elliptic section of light emitted from each of the plurality of laser diodes becomes substantially parallel to a direction of longer sides of the display device.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 1, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Kyo Yamamoto, Masahiro Ogawa
  • Publication number: 20190294036
    Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel, a dichroic mirror, a reflection member and a polarization conversion element. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a transmission area transmitting the light of the first wavelength band. The dichroic mirror reflects the light of the first wavelength band a first polarization direction, transmits the light in a second polarization direction, and transmits or reflects the fluorescent light. The reflection member reflects the light transmitted through the transmission area toward the transmission area. The polarization conversion element is disposed between the fluorescent wheel and the reflection member, transmits the lights transmitted through the transmission area and reflected by the reflection member, and converts the light in the first polarization direction into the second polarization direction.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro OGAWA
  • Publication number: 20190294034
    Abstract: A light source device includes a light emitting element emitting light of a first wavelength band, a fluorescent wheel and a mirror. The fluorescent wheel includes a fluorescent area converting the light of the first wavelength band into fluorescent light and a reflection area reflecting the light of the first wavelength band. The minor reflects a component in a first polarization direction of the light of the first wavelength band and transmits a component in a second polarization direction orthogonal to the first polarization direction. The reflection area includes a reflecting surface and a polarization conversion layer including an optical axis and converts either the first or second polarization direction to another polarization direction. The optical axis of the polarization conversion layer is inclined by 45 degrees to a polarization direction of the light of the first wavelength band at an irradiation position thereof in the fluorescent wheel.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Masahiro OGAWA
  • Publication number: 20190258148
    Abstract: A light source device emits combined light, using a plurality of light sources. The light source device includes first, second and third light sources, and first and second combining members. The first light source emits light of a first wavelength band. The third light source uses the light of the first wavelength band as excitation light and emits light of a third wavelength band which is fluorescent light. The second light source emits light of a second wavelength band which is different from the third wavelength band. The first combining member combines the light of the first wavelength band and the light of the third wavelength band. The second combining member combines the combined light obtained by the first combining member and the light of the second wavelength band. The combined light obtained by the second combining member enters a light guiding unit.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Inventor: Masahiro OGAWA
  • Patent number: 10317783
    Abstract: An embodiment provides a light source unit including an excitation light source for emitting excitation light, and a luminescent material wheel where a first area and a second area are disposed circumferentially, the first area having a first luminescent material layer for converting the excitation light into light of a first wavelength range, the second area having a second luminescent material layer for converting the excitation light into light of a second wavelength range adjoining the first wavelength range, wherein a reflecting portion to reflect the light of the first wavelength range is provided on an opposite side of the first luminescent material layer to a surface where the excitation light is shone, and wherein a transmitting portion for transmitting the light of the second wavelength range is provided on an opposite side of the second luminescent material layer to a surface where the excitation light is shone.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 11, 2019
    Assignee: CASIO COMPUTER CO., LTD
    Inventor: Masahiro Ogawa