Patents by Inventor Takashi Shimazu

Takashi Shimazu 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: 10415891
    Abstract: A heat exchanger comprising: a heat exchange unit that exchanges heat between a heat transfer medium and a heat exchange object; a phase change unit, which comprises a liquid phase space that accommodates the heat transfer medium in a liquid phase state, and a gas phase space that accommodates the heat transfer medium in a gas phase state, the heat transfer medium being capable of moving into and out of the gas phase space; and a first channel along which the heat transfer medium is moved from the phase change unit to the heat exchange unit, wherein the heat exchanger is configured such that a saturated vapor pressure at a temperature of the heat transfer medium in the liquid phase flowing into the phase change unit differs from a pressure of the heat transfer medium in the gas phase in the gas phase space.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 17, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi Iwata, Takafumi Yamauchi, Yasuki Hirota, Takashi Shimazu
  • Publication number: 20190237585
    Abstract: A semiconductor device includes a gate electrode, a gate insulating film which includes oxidized material containing silicon and covers the gate electrode, an oxide semiconductor film provided to be in contact with the gate insulating film and overlap with at least the gate electrode, and a source electrode and a drain electrode electrically connected to the oxide semiconductor film. In the oxide semiconductor film, a first region which is provided to be in contact with the gate insulating film and have a thickness less than or equal to 5 nm has a silicon concentration lower than or equal to 1.0 at. %, and a region in the oxide semiconductor film other than the first region has lower silicon concentration than the first region. At least the first region includes a crystal portion.
    Type: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Inventors: Tatsuya HONDA, Masashi TSUBUKU, Yusuke NONAKA, Takashi SHIMAZU, Shunpei YAMAZAKI
  • Patent number: 10365020
    Abstract: A switching device sequentially switches from having an evaporator-condenser generate an adsorbate and an adsorbent adsorb the adsorbate, to having an evaporator-condenser condense the adsorbate and an adsorbent desorb the adsorbate, such that the evaporator-condenser that generates the adsorbate and the adsorbent that adsorbs the adsorbate face each other, and the evaporator-condenser that condenses the adsorbate and the adsorbent that desorbs the adsorbate face each other. Accordingly, one adsorbent repeatedly desorbs and adsorbs in alternation, and another adsorbent repeatedly adsorbs and desorbs in alternation.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 30, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi Iwata, Takafumi Yamauchi, Yasuki Hirota, Takashi Shimazu
  • Publication number: 20190185986
    Abstract: There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Tetsunori MARUYAMA, Yuki IMOTO, Hitomi SATO, Masahiro WATANABE, Mitsuo MASHIYAMA, Kenichi OKAZAKI, Motoki NAKASHIMA, Takashi SHIMAZU
  • Patent number: 10309694
    Abstract: An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 4, 2019
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu, Masaki Morita, Manabu Orihashi
  • Patent number: 10290744
    Abstract: A semiconductor device includes a gate electrode, a gate insulating film which includes oxidized material containing silicon and covers the gate electrode, an oxide semiconductor film provided to be in contact with the gate insulating film and overlap with at least the gate electrode, and a source electrode and a drain electrode electrically connected to the oxide semiconductor film. In the oxide semiconductor film, a first region which is provided to be in contact with the gate insulating film and have a thickness less than or equal to 5 nm has a silicon concentration lower than or equal to 1.0 at. %, and a region in the oxide semiconductor film other than the first region has lower silicon concentration than the first region. At least the first region includes a crystal portion.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: May 14, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Honda, Masashi Tsubuku, Yusuke Nonaka, Takashi Shimazu, Shunpei Yamazaki
  • Patent number: 10168081
    Abstract: An adsorption heat pump system comprises an evaporator that evaporates an adsorbate; a first adsorption device that adsorbs the adsorbate of the evaporator and generates cooling in the evaporator; and a second adsorption device that adsorbs the adsorbate that was adsorbed by the first adsorption device and generates cooling in the first adsorption device.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 1, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu
  • Patent number: 10156724
    Abstract: An image in content data to be sent out from an information processing apparatus to an HMD is configured such that images obtained by performing correction for left and right parallax images taking distortion of an image by a lens provided in the HMD into consideration are juxtaposed side by side. Further, graphics are displayed in regions of the image, which are invisible when the image is viewed through the lens, and a notification matter from the information processing apparatus is embedded into the graphics depending upon the color, pattern, and shape. The HMD specifies the notification matter corresponding to the graphics and changes the later output mode.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: December 18, 2018
    Assignee: Sony Interactive Entertainment Inc.
    Inventor: Takashi Shimazu
  • Patent number: 10141425
    Abstract: A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A first multi-component oxide semiconductor layer is formed over a substrate and a single-component oxide semiconductor layer is formed thereover; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a first multi-component oxide semiconductor layer including single crystal regions and a single-component oxide semiconductor layer including single crystal regions are formed; and a second multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 27, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takuya Hirohashi, Masahiro Takahashi, Takashi Shimazu
  • Patent number: 10082321
    Abstract: An adsorption heat pump system includes a first adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; a second adsorption device that adsorbs an adsorbate, and that regenerates on heating to a regeneration temperature or above; and a vapor supply member that evaporates the adsorbate and supplies adsorbate vapor to the first adsorption device and the second adsorption device at different respective pressures.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: September 25, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu
  • Publication number: 20180145153
    Abstract: A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A first multi-component oxide semiconductor layer is formed over a substrate and a single-component oxide semiconductor layer is formed thereover; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a first multi-component oxide semiconductor layer including single crystal regions and a single-component oxide semiconductor layer including single crystal regions are formed; and a second multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 24, 2018
    Inventors: Shunpei YAMAZAKI, Takuya HIROHASHI, Masahiro TAKAHASHI, Takashi SHIMAZU
  • Publication number: 20180074321
    Abstract: An image 190 in content data to be sent out from an information processing apparatus to an HMD is configured such that images obtained by performing correction for left and right parallax images taking distortion of an image by a lens provided in the HMD into consideration are juxtaposed side by side. Further, graphics are displayed in regions of the image, which are invisible when the image is viewed through the lens, and a notification matter from the information processing apparatus is embedded into the graphics depending upon the color, pattern, and shape. The HMD specifies the notification matter corresponding to the graphics and changes the later output mode.
    Type: Application
    Filed: May 6, 2016
    Publication date: March 15, 2018
    Applicant: c/o Sony Interactive Entertainment Inc.
    Inventor: Takashi Shimazu
  • Patent number: 9863673
    Abstract: A heat pump including an evaporator and an adsorber is provided. The adsorber is regenerated by applying heat from a chemical thermal storage reactor, a heat accumulator or an external heat source, at a temperature higher than or equal to a temperature to regenerate the adsorber.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: January 9, 2018
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Yasuki Hirota, Takashi Shimazu, Takafumi Yamauchi, Tomohisa Wakasugi, Ryuichi Iwata
  • Patent number: 9859401
    Abstract: A larger substrate can be used, and a transistor having a desirably high field-effect mobility can be manufactured through formation of an oxide semiconductor layer having a high degree of crystallinity, whereby a large-sized display device, a high-performance semiconductor device, or the like can be put into practical use. A first multi-component oxide semiconductor layer is formed over a substrate and a single-component oxide semiconductor layer is formed thereover; then, crystal growth is carried out from a surface to an inside by performing heat treatment at 500° C. to 1000° C. inclusive, preferably 550° C. to 750° C. inclusive so that a first multi-component oxide semiconductor layer including single crystal regions and a single-component oxide semiconductor layer including single crystal regions are formed; and a second multi-component oxide semiconductor layer including single crystal regions is stacked over the single-component oxide semiconductor layer including single crystal regions.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: January 2, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takuya Hirohashi, Masahiro Takahashi, Takashi Shimazu
  • Patent number: 9845918
    Abstract: A gas storage/supply system includes a gas storage material capable of reversibly absorbing and desorbing a gas, a gas storage tank having the gas storage material sealed therein, a chemical heat storage material capable of making a forward reaction and a reverse reaction with an operation medium, a chemical heat storage tank having the chemical heat storage material sealed therein, a heat exchange mechanism for transferring heat between the gas storage tank and the chemical heat storage tank, and a control mechanism for controlling the gas storage/supply system such that gas absorption heat released upon absorption of the gas to the gas storage material is stored in the chemical heat storage tank and gas desorption heat which is necessary for desorption of the gas from the gas storage material is supplied from the chemical heat storage tank.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 19, 2017
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Masakazu Aoki, Takafumi Yamauchi, Yasuki Hirota, Takashi Shimazu
  • Patent number: 9816173
    Abstract: A material suitable for a semiconductor included in a transistor, a diode, or the like is provided. The material is an oxide material including In, M1, M2 and Zn, in which M1 is an element in the group 13 of the periodic table, a typical example thereof is Ga, and M2 is an element whose content is less than the content of M1. Examples of M2 are Ti, Zr, Hf, Ge, Sn, and the like. To contain M2 leads to suppression of generation of oxygen vacancies in the oxide material. A transistor which includes as few oxygen vacancies as possible can be achieved, whereby reliability of a semiconductor device can be increased.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 14, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiro Takahashi, Motoki Nakashima, Takashi Shimazu
  • Patent number: 9791216
    Abstract: An object is to enable a compact and high output heat storage system to perform warm-up rapidly when a vehicle is started up, and after warm-up, to recover surplus heat that is present in a heat source in the vehicle to prepare for the next warm-up event. A heat recovery-type heating device includes: an ammonia buffer configured so as to be capable of fixing and desorbing ammonia that serves as a chemical reaction medium; and a chemical heat storage reactor provided with a chemical heat storage material that generates heat through a chemical reaction with ammonia supplied from the ammonia buffer, and that desorbs ammonia using surplus heat from a heat source and returns the ammonia to the ammonia buffer.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 17, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Takafumi Yamauchi, Takashi Shimazu, Tsutomu Shinagawa, Shuzou Sanda
  • Publication number: 20170241718
    Abstract: A heat exchanger comprising: a heat exchange unit that exchanges heat between a heat transfer medium and a heat exchange object; a phase change unit, which comprises a liquid phase space that accommodates the heat transfer medium in a liquid phase state, and a gas phase space that accommodates the heat transfer medium in a gas phase state, the heat transfer medium being capable of moving into and out of the gas phase space; and a first channel along which the heat transfer medium is moved from the phase change unit to the heat exchange unit, wherein the heat exchanger is configured such that a saturated vapor pressure at a temperature of the heat transfer medium in the liquid phase flowing into the phase change unit differs from a pressure of the heat transfer medium in the gas phase in the gas phase space.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 24, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Ryuichi IWATA, Takafumi YAMAUCHI, Yasuki HIROTA, Takashi SHIMAZU
  • Patent number: 9741860
    Abstract: A semiconductor device includes a gate electrode, a gate insulating film which includes oxidized material containing silicon and covers the gate electrode, an oxide semiconductor film provided to be in contact with the gate insulating film and overlap with at least the gate electrode, and a source electrode and a drain electrode electrically connected to the oxide semiconductor film. In the oxide semiconductor film, a first region which is provided to be in contact with the gate insulating film and have a thickness less than or equal to 5 nm has a silicon concentration lower than or equal to 1.0 at. %, and a region in the oxide semiconductor film other than the first region has lower silicon concentration than the first region. At least the first region includes a crystal portion.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: August 22, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Honda, Masashi Tsubuku, Yusuke Nonaka, Takashi Shimazu, Shunpei Yamazaki
  • Patent number: 9680028
    Abstract: The concentration of impurity elements included in an oxide semiconductor film in the vicinity of a gate insulating film is reduced. Further, crystallinity of the oxide semiconductor film in the vicinity of the gate insulating film is improved. A semiconductor device includes an oxide semiconductor film over a substrate, a source electrode and a drain electrode over the oxide semiconductor film, a gate insulating film which includes an oxide containing silicon and is formed over the oxide semiconductor film, and a gate electrode over the gate insulating film. The oxide semiconductor film includes a region in which the concentration of silicon is lower than or equal to 1.0 at. %, and at least the region includes a crystal portion.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: June 13, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tatsuya Honda, Masashi Tsubuku, Yusuke Nonaka, Takashi Shimazu, Shunpei Yamazaki