Patents by Inventor Hiroshi Kubota

Hiroshi Kubota 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: 11204420
    Abstract: According to one embodiment, a distance measurement apparatus includes a light emitter that intermittently emits a light beam, and a meter that measures a distance to an object from a length of time from an emission of the light beam from the light emitter to a return of reflected light by the object. The light emitter emits the light beam in a certain cycle with delay corresponding to randomly set offset time. The meter generates an integrated detection signal by shifting a plurality of detection signals of the light beam emitted in the certain cycle by the respective offset times and time-divisionally integrating the detection signals, and determines based on the integrated detection signal whether or not the light indicated by the detection signals is reflected light by the object, emitted from the light emitter.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: December 21, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Hiroshi Kubota, Nobu Matsumoto, Saki Sato, Tomonori Fukushima
  • Patent number: 11170921
    Abstract: A marker coil includes a flexible substrate, a coil formed on the substrate by wiring, and a substrate holding part that is capable of being attached to a testee. A convex shape is formed in one of the substrate and the substrate holding part, and an engaging part for engaging the convex shape is formed in the other one of the substrate and the substrate holding part.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: November 9, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Kubota, Yasuyuki Kawabuchi
  • Publication number: 20210302551
    Abstract: A light detector according to an embodiment includes a light receiver and a controller. The controller is configured to set first and second light-receiving regions. The first light-receiving region includes first and second pixel regions. The second light-receiving region includes a third pixel region. An area of the third pixel region is larger than a total area of the first and second pixel regions. The light receiver is configured to, when light is applied: cause each of the first and second pixel regions within the first light-receiving region to individually output a signal; and cause the third pixel region within the second light-receiving region to output signals collectively.
    Type: Application
    Filed: September 10, 2020
    Publication date: September 30, 2021
    Inventors: Hiroshi KUBOTA, Nobu MATSUMOTO
  • Publication number: 20210293957
    Abstract: A light detector according to an embodiment includes a light receiver and a controller. The light receiver includes sensors and pixels. The sensors are arranged two-dimensionally on a substrate. The controller is configured to set a light-receiving region in which the sensors are selectively turned on in the light receiver. The controller sets first and second light-receiving regions. The first and second light-receiving regions include first and second pixel, respectively. The second light-receiving region is arranged away from an optical axis of laser light received by the light receiver. The controller, after turning on each of the first pixel and the second pixel, is further configured to turn off the second pixel in a state in which the first pixel is turned on.
    Type: Application
    Filed: September 10, 2020
    Publication date: September 23, 2021
    Inventors: Hiroshi KUBOTA, Nobu MATSUMOTO
  • Publication number: 20210293475
    Abstract: A helium circulation system includes a refrigerator configured to cool a gas refrigerant into a liquid refrigerant; a first path configured to feed the liquid refrigerant from the refrigerator to a Dewar; a second path configured to feed the gas refrigerant from the Dewar to a vaporized gas collector via the refrigerator; a third path configured to feed the gas refrigerant from the vaporized gas collector to the refrigerator; a fourth path configured to feed the gas refrigerant from the Dewar to the vaporized gas collector without via the refrigerator; and a control unit configured to feed the liquid refrigerant through the first path while feeding the gas refrigerant through the third path when the refrigerator is driven, and feed the gas refrigerant through the second path while feeding the gas refrigerant the fourth path, when the refrigerator is stopped.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Shunichi MATSUMOTO, Kunio KAZAMI, Jun KONDO, Hiroshi KUBOTA, Takahiro UMENO, Shoji TAKAMI, Kenji IWAMOTO, Yujiro HOTEI
  • Publication number: 20210293467
    Abstract: A cryogenic refrigerator includes a cooling unit and a magnetic shielding unit. The cooling unit is configured to cool a refrigerant. The magnetic shielding unit covers around. the cooling unit.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 23, 2021
    Applicants: Ricoh Company, Ltd., Taiyo Nippon Sanso Corporation
    Inventors: Jun KONDO, Kunio KAZAMI, Hiroshi KUBOTA, Shunichi MATSUMOTO, Takahiro UMENO, Syoji TAKAMI, Takuji ITO
  • Publication number: 20210277520
    Abstract: A semiconductor manufacturing apparatus according to the present embodiment includes a first gas feeder, a first gas processor and a second gas feeder. The first gas feeder is provided above a stage on which a substrate is to be placed and feeds a first gas to the substrate. The first gas processor supplies high frequency power to the stage and renders the first gas fed from the first gas feeder into plasma. The second gas feeder is provided above the stage and feeds a second gas more difficult to render into plasma than the first gas to an outer periphery of the first gas having been rendered into plasma.
    Type: Application
    Filed: September 8, 2020
    Publication date: September 9, 2021
    Applicant: Kioxia Corporation
    Inventors: Yuya MATSUBARA, Hiroshi KUBOTA
  • Patent number: 11020181
    Abstract: The infrared denaturing device of the present invention is provided with: an infrared lamp which emits infrared light; a light guide which guides the infrared light; and a light projecting body which radiates the infrared light guided from the light guide onto an object to be denatured. The light projecting body is provided with: a reflecting surface which reflects the infrared light; and a radiating surface which radiates the infrared light reflected by the reflecting surface onto an object to be irradiated. Further, there is also provided a denaturing detection sensor which detects denaturing, by means of the infrared light, of a region being denatured.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: June 1, 2021
    Assignee: Educational Foundation Kyorin Gakuen
    Inventors: Hiroshi Kubota, Masahiko Hoshino
  • Patent number: 11016355
    Abstract: A liquid crystal light control apparatus includes a liquid crystal light control film and power supply device that drives liquid crystal light control film. Liquid crystal light control film has a structure wherein liquid crystal layer is sandwiched between paired transparent electrode layers, and used by being adhered to a large transparent member. Power supply device supplies a predetermined AC voltage between terminals a and b of liquid crystal light control film. A condition |Z0|??×RF is set where RF is a DC resistance between terminals a and b of liquid crystal light control film, |Z0| is an output impedance between terminals A and B of power supply device, and predetermined coefficient ?=0.2. In order to protect power supply device, condition Vp/Imax?|Z0|??×RF is set where Vp is output peak voltage of power supply device and Imax is maximum allowable current.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: May 25, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Hiroshi Kubota, Yusuke Hagiwara, Yasunori Hayashida
  • Publication number: 20210151739
    Abstract: A manufacturing method is provided for manufacturing an electrode for a lithium-ion battery having a current collector and an electrode active material layer. In the method, an electrolytic solution is added to particles created by pulverizing a mixture containing electrode active material particles and a pressure sensitive adhesive resin to obtain an electrode active material composition. The electrode active material composition is molded into sheet form on a current collector using a roll press. The electrode active material composition has a weight of the electrolytic solution based on a total weight of the electrode active material composition that is 0.1-50 wt %.
    Type: Application
    Filed: May 30, 2019
    Publication date: May 20, 2021
    Inventors: Makoto NISHIGUCHI, Hideki ISHITANI, Hideaki HORIE, Kazuyuki YODA, Hiroshi KUBOTA, Yuki KUSACHI
  • Publication number: 20210088635
    Abstract: A photodetector includes a plurality of channels each having a plurality of SPAD units, each SPAD unit having an avalanche photodiode. The photodetector is capable of selecting outputting or non-outputting of the channels. The SPAD unit includes: an active quenching circuit which performs active quenching of the avalanche photodiode; and a control circuit which brings the active quenching circuit which corresponds to the channel where non-outputting is selected into an operable state.
    Type: Application
    Filed: July 8, 2020
    Publication date: March 25, 2021
    Inventors: Hiroshi Kubota, Nobu Matsumoto
  • Publication number: 20210088660
    Abstract: A distance measuring device according to this embodiment includes a plurality of sensors, a switching circuit, and a distance measurement circuit. The plurality of sensors that convert reflected light of laser light received via a light-receiving optical system into an electric signal. The plurality of sensors respectively have different light receiving positions with respect to the light-receiving optical system. The switching circuit switches and outputs an output signal output from a first sensor used for measurement and an output signal output from a second sensor used for measurement after the measurement by the first sensor among the plurality of sensors. The distance measurement circuit measures the distance to a measurement target object on the basis of a time difference between light emission timing of the laser light and timing of a peak position of a time-series luminance signal based on the output signal of the switching circuit.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 25, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hiroshi KUBOTA, Nobu MATSUMOTO
  • Publication number: 20210072571
    Abstract: A liquid crystal light control apparatus includes a liquid crystal light control film and power supply device that drives liquid crystal light control film. Liquid crystal light control film has a structure wherein liquid crystal layer is sandwiched between paired transparent electrode layers, and used by being adhered to a large transparent member. Power supply device supplies a predetermined AC voltage between terminals a and b of liquid crystal light control film. Condition |Z0|??×RF is set where RF is a DC resistance between terminals a and b of liquid crystal light control film, |Z0| is an output impedance between terminals A and B of power supply device, and predetermined coefficient ?=0.2. In order to protect power supply device, condition Vp/Imax?|Z0|??×RF is set where Vp is output peak voltage of power supply device and Imax is maximum allowable current.
    Type: Application
    Filed: January 28, 2019
    Publication date: March 11, 2021
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Hiroshi KUBOTA, Yusuke HAGIWARA, Yasunori HAYASHIDA
  • Publication number: 20210063575
    Abstract: A distance measuring device is a distance measuring device that performs processing on a time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light. The distance measuring device includes a storage circuit and a determination circuit. The storage circuit stores a first time-series luminance signal based on reflected light from a first measurement target of laser light and a second time-series luminance signal based on reflected light from a second measurement target of laser light. The determination circuit determines, on the basis of correlation between the first time-series luminance signal and the second time-series luminance signal, whether the first measurement target and the second measurement target are the same measurement target.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hiroshi KUBOTA, Nobu MATSUMOTO
  • Publication number: 20210026012
    Abstract: A distance measuring device according to an embodiment that processes a first time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light, includes a measurement signal generation circuit, and a measurement processing circuit. The measurement signal generation circuit generates a third time-series luminance signal obtained by subtracting, from the first time-series luminance signal, a second time-series luminance signal corresponding to reflected light from outside a measurement target object based on the laser light. The measurement processing circuit generates a distance value to the measurement target object on the basis of the third time-series luminance signal.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 28, 2021
    Inventors: Hiroshi Kubota, Nobu Matsumoto
  • Publication number: 20200400790
    Abstract: An electronic apparatus has a light receiver configured to receive a reception light including a reflected pulse generated by a reflection of an emitted pulse on an object, an analog-to-digital converter configured to generate digital signals regarding the reception light, a memory configured to store the digital signals, a memory controller configured to control a write rate to write the digital signals to the memory in accordance with an elapsed time from emission timing of the emitted pulse; and processor circuitry configured to measure a distance to the object based on a difference between the emission timing of the emitted pulse and reception timing of the reflected pulse.
    Type: Application
    Filed: March 13, 2020
    Publication date: December 24, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Kentaro YOSHIOKA, Hiroshi KUBOTA
  • Patent number: 10872782
    Abstract: In one embodiment, a method of manufacturing a semiconductor device includes forming a stacked film on a substrate. The method further includes forming, on the stacked film, a mask layer formed of a tungsten compound and including impurity atoms having a concentration of 1.0×1020 atoms/cm3 or more. The method further includes etching the stacked film using the mask layer as an etching mask.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: December 22, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yuya Matsubara, Hiroshi Kubota
  • Patent number: 10866311
    Abstract: A distance measuring device according to an embodiment includes a light source, an irradiation optical system, a light-receiving optical system, a sensor, an extractor, an adjuster, a signal generator, and a distance measurer. The light source intermittently emits laser light. The irradiation optical system reflects the laser light. The light-receiving optical system receives reflected light of the laser light via the mirror. The sensor includes a plurality of light receiving elements. The extractor extracts light receiving elements used for measurement of a distance to the measurement target object. The adjuster adjusts, according to an amplification factor corresponding to the light receiving elements extracted by the extractor, signal values of the electric signals of the light receiving elements. The signal generator generates time-series signals for measurement on the basis of the electric signals adjusted by the adjuster. The distance measurer measures the distance to the measurement target object.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 15, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hiroshi Kubota, Nobu Matsumoto, Yutaka Oota, Saki Sato
  • Patent number: 10816663
    Abstract: A distance measuring device includes a laser light source, an irradiation optical system comprising a beam spreader which is configured to spread the laser light about a first optical axis, a light reception optical system having a second optical axis different from the first optical axis and positioned to receive reflected light of the laser light from the object for measuring a distance to the object, a sensor with light receiving elements arranged in a first direction, the sensor being positioned to receive light reflected from the object which has passed through the light reception optical system, and a distance measuring unit configured to acquire distance information relating to the object based on the difference in time between emission of the laser light source and the reception of the reflected light at each of the plurality of light receiving elements.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: October 27, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yutaka Ota, Masatoshi Hirono, Mineharu Uchiyama, Nobu Matsumoto, Hiroshi Kubota, Shinichi Ohtsuka
  • Publication number: 20200300985
    Abstract: A light receiving device includes a light receiver including pixels and a light receiving area. The pixels are arranged in an array in a first direction and in a second direction intersecting with the first direction and each of the pixels has one light receiving element or more. The light receiving area has continuous pixels out of the pixels, outputs signals based on intensities of light received in the continuous pixels, and is changed in position in the light receiver according to a signal indicating a position in the first direction and a position in the second direction.
    Type: Application
    Filed: September 5, 2019
    Publication date: September 24, 2020
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Hiroshi KUBOTA, Nobu Matsumoto