Patents by Inventor Tatsuya Iwasaki

Tatsuya Iwasaki 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: 9416022
    Abstract: A method for preparing a bismuth iodide article includes heat-treating bismuth iodide at a temperature less than the melting point of bismuth iodide in an atmosphere containing iodine.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: August 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuya Saito, Tatsuya Iwasaki, Toru Den
  • Publication number: 20160222882
    Abstract: A solar heat turbine system includes: a compressor which compresses a working fluid, and generates a high-pressure working fluid; a solar heat receiver which heats the high-pressure working fluid with solar heat, and which generates a high-temperature working fluid; a turbine which is rotationally driven by the high-temperature working fluid; a restriction mechanism which restricts a flow of at least one of the high-pressure working fluid and the high-temperature working fluid; a rotation interlocking mechanism which rotationally drives the compressor so as to interlock with the turbine; a bleed mechanism which causes the high-pressure working fluid which is in a process of being generated in the compressor to be bled as a bled working fluid; and a system control unit which causes the bleed mechanism to execute bleeding after the restriction mechanism is caused to restrict.
    Type: Application
    Filed: October 10, 2013
    Publication date: August 4, 2016
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shoichi Harada, Kazuya Higashi, Takashi Sonoda, Keisuke Yamamoto, Yoshifumi Iwasaki, Tatsuya Iwasaki
  • Publication number: 20160197513
    Abstract: A rectifier circuit is coupled to a reception coil, and generates a rectified voltage. A charger circuit receives the rectified voltage, and charges a secondary battery. A modulator coupled to the reception coil modulates a voltage or a current applied to the reception coil based on a control value, and transmits a control packet including the control value to a wireless power transmitter. A charging control unit controls a charging current supplied from the charger circuit to the secondary battery. A power control unit generates a control error value indicating a power transmission rate for the wireless power transmitter, based on the difference between the present rectified voltage and its target value, and outputs the control error value as the control value to the modulator. When the absolute value of the difference is smaller than a predetermined threshold value, the charging control unit changes the charging current.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 7, 2016
    Inventors: Daisuke UCHIMOTO, Tatsuya IWASAKI
  • Patent number: 9363118
    Abstract: A non-contact power supply transmitter system 100 transmitting an electric power from a transmitting device (TX) 200 to a receiving device (RX) 300 with a non-contact power supply transmitter method, the TX 200 including: a transmitting coil 202; a driver 204 causing the transmitting coil 202 to generate a power signal of the electromagnetic field; and an FSK modulation unit 240 transmitting an FSK signal Sf through the transmitting coil 202, the RX 300 including: a receiving coil 302; an FSK demodulation unit 330 demodulating the FSK signal Sf received through the receiving coil 302; and a controller 312 inputting the FSK signal demodulated by the FSK demodulation unit 330, the FSK demodulation unit 330 is composed of an analog circuit. The non-contact power supply transmitter system, the receiving device, and the analog circuit can realize a low power, space-saving FSK communication.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 7, 2016
    Assignee: ROHM CO., LTD.
    Inventors: Takashi Noguchi, Tatsuya Iwasaki
  • Patent number: 9360566
    Abstract: Provided is a radiation detector, including: a two-dimensional light receiving element including a plurality of pixels; and a scintillator layer having multiple scintillator crystals two-dimensionally arranged on a light receiving surface of the two-dimensional light receiving element, in which: the scintillator crystal includes two crystal phases, which are a first crystal phase including a material including a plurality of columnar crystals extending in a direction perpendicular to the light receiving surface of the two-dimensional light receiving element and having a refractive index n1, and a second crystal phase including a material existing between the plurality of columnar crystals and having a refractive index n2; and a material having a refractive index n3 is placed between adjacent scintillator crystals, the refractive index n3 satisfying a relationship of one of n1?n3?n2 and n2?n3?n1.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuya Saito, Tatsuya Iwasaki, Nobuhiro Yasui, Toru Den
  • Publication number: 20160020643
    Abstract: The wireless power receiving device includes a receiving antenna, a rectifier circuit connected to the receiving antenna, that generates a rectified voltage, a charging circuit to receive the rectified voltage and charge a power storage device, and a modulator that modulates a voltage or current of the receiving antenna by changing a charging current of the charging circuit based on data to be transmitted to a wireless power transmitting device.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 21, 2016
    Inventors: Shinichi ABE, Tatsuya IWASAKI
  • Publication number: 20150349851
    Abstract: A power transmitter supplies an electric power signal to a wireless power receiver. A transmission antenna is configured to transmit the electric power signal, and to receive data from the wireless power receiver. The data includes personal data that indicates user-specific information with respect to the user of the wireless power receiver, in addition to control data to be used to control the wireless power transmitter. A driver drives the transmission antenna. A controller controls the driver according to the control data received via the transmission antenna, and acquires the personal data.
    Type: Application
    Filed: June 3, 2015
    Publication date: December 3, 2015
    Inventors: Kazuyoshi YASUOKA, Tatsuya IWASAKI
  • Patent number: 9134437
    Abstract: Provided is a radiation detecting device, including: a scintillator which emits light when radiation is irradiated thereto; and a photosensor array having light receiving elements for receiving the emitted light which are two-dimensionally arranged, in which: the scintillator has a phase separation structure for propagating the light emitted inside the scintillator in a light propagating direction, the phase separation structure being formed by embedding multiple columnar portions formed of a first material in a second material; the radiation is irradiated to the scintillator from a direction which is not in parallel to the light propagating direction; and the light emitted inside the scintillator is propagated through the scintillator in the light propagating direction and is received by the photosensor array which is placed so as to face an end face of the scintillator.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: September 15, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tatsuya Iwasaki, Nobuhiro Yasui, Toru Den
  • Patent number: 9134438
    Abstract: Provided is a radiation detecting element, including: a semiconductor layer including a tin oxide crystal; and a detecting unit configured to detect, as an electrical signal, charges generated in the semiconductor layer when the semiconductor layer is irradiated with radiation, in which a resistivity of the semiconductor layer is 107 ?·cm or more.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: September 15, 2015
    Assignees: Canon Kabushiki Kaisha, The University of Tokyo
    Inventors: Tatsuya Iwasaki, Tatsuya Saito, Toru Den, Yoshinobu Nakamura, Hidenori Takagi
  • Publication number: 20150222144
    Abstract: A power receiving control circuit is provided that receives AC coil current IRX from a reception coil and that supplies DC output voltage VOUT. A rectifier circuit rectifies the coil current IRX. A linear regulator receives a rectified voltage VRECT across a smoothing capacitor, and generates the output voltage VOUT stabilized to a predetermined target level. A controller has predetermined control characteristics configured as a relation between the value of a charging current ICHG and the target value of the rectified voltage VRECT. The controller detects the value of the charging current ICHG, and transmits information which indicates electric power to be transmitted from a wireless power supply apparatus, with reference to the control characteristics. The controller is configured to be capable of changing the control characteristics.
    Type: Application
    Filed: April 15, 2015
    Publication date: August 6, 2015
    Inventors: Tatsuya IWASAKI, Kazuyoshi YASUOKA, Naoki INOUE, Daisuke UCHIMOTO
  • Publication number: 20150207338
    Abstract: A wireless power receiver circuit forms a wireless power receiving apparatus together with a reception coil. An internal power supply line is connected to a capacitor C. An output line is connected to a secondary battery. An H-bridge circuit includes N-channel MOSFETs MH1, MH2, ML1, and ML2. A first switch is arranged between a rectification line and the internal power supply line. A second switch is arranged between the rectification line and the output line. A voltage VDD of the internal power supply line is supplied to a power supply terminal of a controller.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Inventors: Daisuke UCHIMOTO, Naoki INOUE, Tatsuya IWASAKI
  • Publication number: 20150129771
    Abstract: A method for preparing a bismuth iodide article includes heat-treating bismuth iodide at a temperature less than the melting point of bismuth iodide in an atmosphere containing iodine.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 14, 2015
    Inventors: Tatsuya Saito, Tatsuya Iwasaki, Toru Den
  • Publication number: 20150069849
    Abstract: A demodulator is mounted on a wireless power transmitter that conforms to the Qi standard, and demodulates an amplitude modulated signal superimposed on a coil current ICOIL that flows through a primary coil of a transmission antenna, or otherwise on a coil voltage across both ends of the primary coil. Multiple demodulating units are each configured to have respectively different configurations, to operate in parallel, to extract a demodulated component from the coil current ICOIL or otherwise from the coil voltage, and to generate baseband signals as demodulated signals. A signal processing unit employs a baseband signal that is correctly received, from among the multiple baseband signals generated by the multiple demodulating units, based on an error detection result obtained using a checksum.
    Type: Application
    Filed: June 18, 2014
    Publication date: March 12, 2015
    Inventors: Masatoshi WATANABE, Manabu MIYATA, Tatsuya IWASAKI, Tomoya MORINAGA
  • Publication number: 20150049833
    Abstract: A non-contact power supply transmitter system 100 transmitting an electric power from a transmitting device (TX) 200 to a receiving device (RX) 300 with a non-contact power supply transmitter method, the TX 200 including: a transmitting coil 202; a driver 204 causing the transmitting coil 202 to generate a power signal of the electromagnetic field; and an FSK modulation unit 240 transmitting an FSK signal Sf through the transmitting coil 202, the RX 300 including: a receiving coil 302; an FSK demodulation unit 330 demodulating the FSK signal Sf received through the receiving coil 302; and a controller 312 inputting the FSK signal demodulated by the FSK demodulation unit 330, the FSK demodulation unit 330 is composed of an analog circuit. The non-contact power supply transmitter system, the receiving device, and the analog circuit can realize a low power, space-saving FSK communication.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Takashi NOGUCHI, Tatsuya IWASAKI
  • Publication number: 20150036086
    Abstract: A liquid crystal display device includes: a first polarizer; a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules aligned in parallel with a substrate of the liquid crystal cell; a first compensation film; and a second polarizer, wherein, as viewed perpendicularly to the substrate, an absorption axis of the first polarizer is parallel with an optical axis of the first compensation film, and an angle ? between the absorption axis of the first polarizer and an optical axis of the liquid crystal layer satisfies 0°<?, in a cross section of the liquid crystal cell as viewed along a transmission axis of the first polarizer, an optical axis of the liquid crystal layer and the optical axis of the first compensation film have a tilt angle in the same direction to a face of the substrate, and the first compensation film has a positive birefringence.
    Type: Application
    Filed: July 28, 2014
    Publication date: February 5, 2015
    Applicant: FUJIFILM Corporation
    Inventor: Tatsuya IWASAKI
  • Publication number: 20150002789
    Abstract: To provide an optically-compensatory film that can improve the contrast, to provide a polarizing plate and a liquid crystal display including the optically-compensatory film and a method of producing the optically-compensatory film. An optically-compensatory film including a transparent support; and at least one optically anisotropic layer including a liquid crystal composition containing liquid crystal compounds, in the transparent support; wherein when the optically-compensatory film is disposed between two polarizing plates in a cross nicol state, degree of depolarization as seen from the front face is 0.000022 or less, and degree of depolarization as seen from a polar angle of 50° from an absorption axis direction of one of the polarizing plates is 0.00077 or less.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Hiroyuki KAIHOKO, Yuki MATSUDA, Tatsuya IWASAKI, Shunya KATOH, Hiroshi MATSUYAMA, Toshiyuki SAIKI
  • Publication number: 20140374609
    Abstract: Provided is a radiation detecting element, including: a semiconductor layer including a tin oxide crystal; and a detecting unit configured to detect, as an electrical signal, charges generated in the semiconductor layer when the semiconductor layer is irradiated with radiation, in which a resistivity of the semiconductor layer is 107 ?·cm or more.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 25, 2014
    Inventors: Tatsuya Iwasaki, Tatsuya Saito, Toru Den, Yoshinobu Nakamura, Hidenori Takagi
  • Publication number: 20140360188
    Abstract: A solar thermal power generation facility is provided with turbine bypass piping (74) which makes some of compressed air from a compressor (10) bypass a turbine (20), a turbine bypass valve (75) which adjusts the flow rate of the compressed air flowing through the turbine bypass piping (74), and a control device (80) which controls the rotational torque of a turbine rotor (21) by opening the turbine bypass valve (75) before a rotor rotational speed reaches a rated rotational speed in a speeding-up process of the rotor rotational speed by a start-up device (60) and adjusting the flow rate of the compressed air that is made to bypass, by the turbine bypass valve (75). The control device (80) instantaneously fully closes the turbine bypass valve (75) at the time of incorporation in which a power generator (50) is connected to an electric power system (S).
    Type: Application
    Filed: March 18, 2013
    Publication date: December 11, 2014
    Inventors: Shoichi Harada, Kazuya Higashi, Takashi Sonoda, Keisuke Yamamoto, Yoshifumi Iwasaki, Tatsuya Iwasaki, Sumio Toyofuku, Kazuma Nishizawa
  • Publication number: 20140354066
    Abstract: A first oscillator is configured to be switchable between a disabled state and an oscillation state in which a first clock signal CLK1 having a first frequency is generated. A second oscillator oscillates at a second frequency that is lower than the first frequency, so as to generate a second clock signal. In (i) a power transfer phase in which electric power is transmitted to a wireless power receiving apparatus, a controller instructs the first oscillator to oscillate, and generates a first pulse signal for controlling a driver according to the first clock signal. In (ii) a selection phase in which the presence or absence of the wireless power receiving apparatus is detected, the controller generates a second pulse signal for controlling the driver at a predetermined time interval, which is measured based on the second clock signal, and during which the first oscillator is set to the disabled state.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: ROHM CO., LTD.
    Inventors: Masatoshi WATANABE, Takeshi NOZAWA, Tatsuya IWASAKI, Manabu MIYATA
  • Publication number: 20140293198
    Abstract: A liquid crystal display includes: a first polarizer; a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules horizontally aligned to a face of a substrate; and a second polarizer. The liquid crystal display further includes a first optical compensation film disposed between the first polarizer and the liquid crystal cell, an absorption axis of the first polarizer, an optical axis of the first optical compensation film, and an optical axis of the liquid crystal layer being parallel to each other in a view of the liquid crystal cell in a direction orthogonal to the face of the substrate of the liquid crystal cell. The optical axis of the liquid crystal layer of the liquid crystal cell and the optical axis of the first optical compensation film have a tilt angle from the face of the substrate of the liquid crystal cell in a same direction.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Tatsuya IWASAKI, Ayako MURAMATSU, Hiroyuki KAIHOKO