Patents by Inventor Masahiro Hosoya

Masahiro Hosoya 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: 20200127523
    Abstract: Provided is a rotary electric machine which achieves miniaturization and high power while preventing winding break of a coil. A rotary electric machine includes a stator which includes a stator core, a bobbin attached to the stator core, and a coil wound around a winding portion of the bobbin to generate a magnetomotive force, and a rotor provided on an inner peripheral side of the stator. The winding portion includes a regulation portion in an end surface in an axial direction of a rotation shaft of the rotary electric machine to regulate a position of the coil wound around the winding portion.
    Type: Application
    Filed: May 15, 2018
    Publication date: April 23, 2020
    Inventors: Akihito TOYA, Masahiro HOSOYA
  • Patent number: 10340857
    Abstract: According to one embodiment, the amplifier circuit includes a first and second differential amplifier. The first differential amplifier includes first and second transistors, a first current source, and a second current source that is configured to supply a current to the first and second transistors via a first switch element. The second differential amplifier includes third and fourth transistors, a third current source, and a fourth current source that is configured to supply a current to the third and fourth transistors via a second switch element. A first signal is input to the first and third transistors. The first switch elements are controlled by third and fourth signals, respectively. The third signal and the fourth signal are complementary.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 2, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Junya Matsuno, Kazuyoshi Muraoka, Masami Masuda, Yuui Shimizu, Masatoshi Kohno, Masahiro Hosoya
  • Patent number: 10242745
    Abstract: A semiconductor memory device includes a memory cell array, a temperature sensor that generates a first voltage which is based on a temperature of the semiconductor memory device, compares the first voltage with a second voltage that is based on a result of previous temperature measurement, and generates a voltage generation signal based on a result of comparing the first voltage with the second voltage, and a voltage generating circuit that generates a voltage applied to the memory cell array based on the voltage generation signal.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 26, 2019
    Assignee: Toshiba Memory Corporation
    Inventor: Masahiro Hosoya
  • Publication number: 20190013710
    Abstract: Provided is a rotary electric machine in which lengths of routing portions of coil terminals are made uniform and a coil terminal portion is downsized. A rotary electric machine includes a rotor and a stator, the stator including teeth each wound with a coil, in which the coil consists of a first coil set and a second coil set, each of the first coil set and the second coil set is continuously wound around the two teeth, and includes a first coil terminal, and a second coil terminal to which a routing portion is formed, the first coil terminal of each of the first coil set and the second coil set is directly connected to the second coil terminal of another of the first coil set and the second coil set, the first coil terminal and the second coil terminal of each of the first coil set and the second coil set are arranged on an identical coil end, and the second coil terminal of each of the first coil set and the second coil set is arranged not to cross any other coil terminal in an axial direction.
    Type: Application
    Filed: December 2, 2016
    Publication date: January 10, 2019
    Inventors: Shozo KAWASAKI, Hiroshi KANAZAWA, Yasunaga HAMADA, Kenji NAKAYAMA, Koichi KASHIWA, Masahiro HOSOYA
  • Patent number: 10170954
    Abstract: The purpose of the present invention is to provide a direct current motor wherein the number of coil-connecting wires that cross the outer surface of a coil end part is reduced. In a direct current motor that is provided with an armature that has a plurality of armature slots and has an armature coil that is wound so as to span two armature slots that are separated by a fixed number of armature slots, a lowermost layer of a coil end part is provided with at least four armature coils that are wound through other armature slots so as not to coincide with the wound armature coil, and a layer above the four armature coils that are wound on the bottommost layer is provided with at least four armature coils that are wound in the same manner as the four armature coils.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: January 1, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Tsukasa Taniguchi, Hidefumi Iwaki, Koichi Kashiwa, Masahiro Hosoya
  • Publication number: 20180367006
    Abstract: The present invention provides a novel electric motor that allows improvement in the electrical insulation performance of the winding wire on the innermost peripheral side between adjacent teeth. A winding wire is wound in three layers around a tooth. The winding wire in a first winding layer is wound from a core back to a collar portion, and the winding wire in a second winding layer is wound from the collar portion to the core back. The start end of the winding wire in the first winding layer wound around a tooth is arranged on the core back side of the second winding layer. The terminal end and its vicinity of the winding wire in the first winding layer is arranged on the collar portion side of the first winding layer to leave a second winding layer start end arrangement space where the start end of the winding wire in the second winding layer is to be arranged.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 20, 2018
    Inventors: Akira FUJIWARA, Kenji NAKAYAMA, Shozo KAWASAKI, Hiroshi KANAZAWA, Masahiro HOSOYA
  • Publication number: 20180277223
    Abstract: A semiconductor memory device includes a memory cell array, a temperature sensor that generates a first voltage which is based on a temperature of the semiconductor memory device, compares the first voltage with a second voltage that is based on a result of previous temperature measurement, and generates a voltage generation signal based on a result of comparing the first voltage with the second voltage, and a voltage generating circuit that generates a voltage applied to the memory cell array based on the voltage generation signal.
    Type: Application
    Filed: August 31, 2017
    Publication date: September 27, 2018
    Inventor: Masahiro HOSOYA
  • Publication number: 20180254750
    Abstract: According to one embodiment, the amplifier circuit includes a first and second differential amplifier. The first differential amplifier includes first and second transistors, a first current source, and a second current source that is configured to supply a current to the first and second transistors via a first switch element. The second differential amplifier includes third and fourth transistors, a third current source, and a fourth current source that is configured to supply a current to the third and fourth transistors via a second switch element. A first signal is input to the first and third transistors. The first switch elements are controlled by third and fourth signals, respectively. The third signal and the fourth signal are complementary.
    Type: Application
    Filed: September 8, 2017
    Publication date: September 6, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Junya MATSUNO, Kazuyoshi MURAOKA, Masami MASUDA, Yuui SHIMIZU, Masatoshi KOHNO, Masahiro HOSOYA
  • Publication number: 20160352171
    Abstract: The purpose of the present invention is to provide a direct current motor wherein the number of coil-connecting wires that cross the outer surface of a coil end part is reduced. In a direct current motor that is provided with an armature that has a plurality of armature slots and has an armature coil that is wound so as to span two armature slots that are separated by a fixed number of armature slots, a lowermost layer of a coil end part is provided with at least four armature coils that are wound through other armature slots so as not to coincide with the wound armature coil, and a layer above the four armature coils that are wound on the bottommost layer is provided with at least four armature coils that are wound in the same manner as the four armature coils.
    Type: Application
    Filed: January 14, 2015
    Publication date: December 1, 2016
    Inventors: Tsukasa TANIGUCHI, Hidefumi IWAKI, Koichi KASHIWA, Masahiro HOSOYA
  • Patent number: 9406395
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a first memory cell and a controller. The controller controls a write operation. The write operation includes a first program to write data into the first memory cell, and a first verification to verify the first program. when a power voltage has become lower than a first voltage during the execution of the first verification for the first memory cell, the controller executes a second verification to verify the first program for the first memory cell.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 2, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takuyo Kodama, Masahiro Hosoya, Tomoyuki Hamano
  • Publication number: 20160141930
    Abstract: A rotor for an electric power steering motor is configured to include a rotor core having a step skew structure constituted of two independent cores as well as to use shrink fitting to fasten the two cores to a shaft. It may also be configured such that a magnetic center of the rotor core is adjusted by controlling a dimension thereof from a tip of the shaft and by shrink fitting the two cores.
    Type: Application
    Filed: October 15, 2015
    Publication date: May 19, 2016
    Inventors: Hiroshi KANAZAWA, Shozo KAWASAKI, Kenji NAKAYAMA, Yasunaga HAMADA, Koichi KASHIWA, Masahiro HOSOYA
  • Patent number: 9296848
    Abstract: According to one embodiment, a polymer material includes two or more different repeating units each containing a quinoxaline backbone. At least one of the repeating units includes a halogen atom.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 29, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Iwanaga, Fumihiko Aiga, Masahiro Hosoya, Mitsunaga Saito, Haruhi Oooka, Akihiko Ono
  • Patent number: 9294044
    Abstract: A bias circuit according to an embodiment is a bias circuit that supplies a bias voltage to an amplifying element. The bias circuit of the embodiment includes a first current source that has a characteristic of varying an output current with the surrounding temperature variations, and a second current source that has a different output characteristic from the first current source and that can control the output current. The bias circuit of the embodiment also includes a comparator for comparing the output current of the first current source with the output current of the second current source, and a bias supply part that controls the output current of the second current source on the basis of the comparison result of the comparator and supplies a bias voltage to the amplifying element in accordance with the comparison result.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 22, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shusuke Kawai, Masahiro Hosoya, Tong Wang, Toshiya Mitomo, Shigehito Saigusa, Tetsuro Itakura
  • Patent number: 9281830
    Abstract: A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 8, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shoji Otaka, Takafumi Yamaji, Tsutomu Sugawara, Yasuhiko Tanabe, Masahiro Hosoya, Hiroki Sakurai
  • Patent number: 9178171
    Abstract: According to one embodiment, there is provided a method for manufacturing a photovoltaic cell. The method includes forming a structure including a pair of electrodes which are arranged apart from each other, and a hetero-junction type photoelectric conversion layer interposed between the electrodes and containing a p-type semiconductor and a n-type semiconductor, and annealing the photoelectric conversion layer thermally while applying an AC voltage having a frequency of 0.01 kHz or more and less than 1 kHz to control a mixed state of the p-type semiconductor and n-type semiconductor in the photoelectric conversion layer.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: November 3, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsunaga Saito, Masahiro Hosoya
  • Publication number: 20150228919
    Abstract: According to one embodiment, there is provided an organic photovoltaic cell including substrate having a plurality of inclined surfaces and a plurality of solar cells formed on the inclined surfaces of the substrate. Each of the solar cells includes a pair of electrodes and a bulk heterojunction active layer interposed between the electrodes, the active layer containing a p-type organic semiconductor and an n-type organic semiconductor. An inclination of each of the inclined surfaces of the substrate against the horizontal plane is in the range of 60 to 89°, and the active layer exhibits a transmission of light within visible wavelength range of 3% or greater.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 13, 2015
    Inventors: Mitsunaga SAITO, Masahiro HOSOYA, Michihiko INABA
  • Publication number: 20150155507
    Abstract: According to one embodiment, there is provided a method for manufacturing a photovoltaic cell. The method includes forming a structure including a pair of electrodes which are arranged apart from each other, and a hetero-junction type photoelectric conversion layer interposed between the electrodes and containing a p-type semiconductor and a n-type semiconductor, and annealing the photoelectric conversion layer thermally while applying an AC voltage having a frequency of 0.01 kHz or more and less than 1 kHz to control a mixed state of the p-type semiconductor and n-type semiconductor in the photoelectric conversion layer.
    Type: Application
    Filed: February 4, 2015
    Publication date: June 4, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mitsunaga SAITO, Masahiro HOSOYA
  • Patent number: 8980672
    Abstract: According to one embodiment, there is provided a method for manufacturing a photovoltaic cell. The method includes forming a structure including a pair of electrodes which are arranged apart from each other, and a hetero-junction type photoelectric conversion layer interposed between the electrodes and containing a p-type semiconductor and a n-type semiconductor, and annealing the photoelectric conversion layer thermally while applying an AC voltage having a frequency of 0.01 kHz or more and less than 1 kHz to control a mixed state of the p-type semiconductor and n-type semiconductor in the photoelectric conversion layer.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: March 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsunaga Saito, Masahiro Hosoya
  • Patent number: 8958767
    Abstract: A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: February 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shoji Otaka, Takafumi Yamaji, Tsutomu Sugawara, Yasuhiko Tanabe, Masahiro Hosoya, Hiroki Sakurai
  • Patent number: 8907207
    Abstract: A solar cell module according to an embodiment includes a solar cell device and a support structure supporting the solar cell device. The solar cell device is a belt-like solar cell device including first portions arranged in one direction such that major surfaces thereof face each other, and a second portion interposed between the first portions. The edges of the first portions that correspond to a pair of long sides of the solar cell device are parallel to each other. Two adjacent first portions incline forwardly and backwardly with respect to the one direction. The second portion includes one or more planar or curved surfaces to connect the two adjacent first portions to each other.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: December 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Haruhi Oooka, Mitsunaga Saito, Masahiro Hosoya, Hiroki Iwanaga, Michihiko Inaba