Patents by Inventor Tsuyoshi Nishioka

Tsuyoshi Nishioka 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: 20190345860
    Abstract: An internal combustion engine 1 is provided, in an exhaust passage thereof with an electrochemical reactor including: an ion conductive solid electrolyte layer; an anode layer arranged on a surface of the solid electrolyte layer; and a cathode layer arranged on a surface of the solid electrolyte layer and able to hold NOX. The engine includes a current control device for controlling the current supplied to the electrochemical reactor so as to flow from the anode layer through the solid electrolyte layer to the cathode layer. The current control device is configured so as to supply current to the electrochemical reactor at least temporarily while that internal combustion engine is stopped.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 14, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keishi TAKADA, Tetsuya SAKUMA, Hiromasa NISHIOKA, Hiroshi OTSUKI, Hirohito HIRATA, Yoshiyuki SAKAMOTO, Tsuyoshi HAMAGUCHI, Chika KATO, Yuji SAKAKIBARA, Takashi KUZUYA
  • Publication number: 20190225584
    Abstract: The present invention provides low hygroscopic forms of aripiprazole and processes for the preparation thereof which will not convert to a hydrate or lose their original solubility even when a medicinal preparation containing the anhydrous aripiprazole crystals is stored for an extended period.
    Type: Application
    Filed: October 24, 2018
    Publication date: July 25, 2019
    Inventors: Takuji BANDO, Satoshi AOKI, Junichi KAWASAKI, Makoto ISHIGAMI, Youichi TANIGUCHI, Tsuyoshi YABUUCHI, Kiyoshi FUJIMOTO, Yoshihiro NISHIOKA, Noriyuki KOBAYASHI, Tsutomu FUJIMURA, Masanori TAKAHASHI, Kaoru ABE, Tomonori NAKAGAWA, Koichi SHINHAMA, Naoto UTSUMI, Michiaki TOMINAGA, Yoshihiro OOI, Shohei YAMADA, Kenji TOMIKAWA
  • Patent number: 8837955
    Abstract: It is aimed to provide a phase modulation apparatus that realizes high-precision phase modulation in high-speed phase modulation of dual optical pulses. A phase modulator 105 included in the phase modulation apparatus, when a dual optical pulse with a time difference composed of a signal optical pulse SP and a reference optical pulse RP passes therethrough, phase-modulates this dual optical pulse in proportion to an applied voltage of an electrical pulse. As a result, a phase-modulated SP? and a phase-modulated RP? are output. A modulation signal generator 106 outputs an electrical pulse of a predetermined bias at an input timing of a trigger signal, according to an input of a four-valued data signal, for example. The modulation signal generator 106 outputs, for one input of the trigger signal, a dual electrical pulse having a time difference and having opposite polarities.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: September 16, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tsuyoshi Nishioka, Hirokazu Ishizuka
  • Patent number: 8405019
    Abstract: Provided is a photon detector that enables an APD response by a sinusoidal wave-shaped gate signal and is operable at an arbitrary drive frequency without requiring a special band removing filter.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: March 26, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventor: Tsuyoshi Nishioka
  • Patent number: 8270841
    Abstract: The present invention is directed to realize a stable and highly-efficient quantum communication without being influenced by the jitter of the heralding signal. In regard to the quantum encryption transmitting apparatus 200, the pulse-driven heralded single-photon source 201 generates a photon pair, outputs one photon of the photon pair, and outputs the other photon of the photon pair as a heralding signal. The timing adjuster 202 synchronizes the heralding signal with a clock signal for pulse driving the pulse-driven heralded single-photon source 201, and outputs as a trigger signal. The quantum communication modulating unit 203 implements the signal modulation to a quantum signal, in timing with the trigger signal, and transmits the quantum signal to the quantum encryption receiving apparatus 300 via the quantum communication path 101. The heralding signal transmitting unit 205 transmits the heralding signal to the quantum encryption receiving apparatus 300 via the heralding signal communication path 102.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: September 18, 2012
    Assignees: Mitsubishi Electric Corporation, National University Corporation Hokkaido University
    Inventors: Tsuyoshi Nishioka, Shigeki Takeuchi, Alexandre Soujaeff, Toshio Hasegawa, Junnichi Abe
  • Publication number: 20120104239
    Abstract: Provided is a photon detector that enables an APD response by a sinusoidal wave-shaped gate signal and is operable at an arbitrary drive frequency without requiring a special band removing filter.
    Type: Application
    Filed: September 12, 2008
    Publication date: May 3, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tsuyoshi Nishioka
  • Publication number: 20110229146
    Abstract: It is aimed to provide a phase modulation apparatus that realizes high-precision phase modulation in high-speed phase modulation of dual optical pulses. A phase modulator 105 included in the phase modulation apparatus, when a dual optical pulse with a time difference composed of a signal optical pulse SP and a reference optical pulse RP passes therethrough, phase-modulates this dual optical pulse in proportion to an applied voltage of an electrical pulse. As a result, a phase-modulated SP? and a phase-modulated RP? are output. A modulation signal generator 106 outputs an electrical pulse of a predetermined bias at an input timing of a trigger signal, according to an input of a four-valued data signal, for example. The modulation signal generator 106 outputs, for one input of the trigger signal, a dual electrical pulse having a time difference and having opposite polarities.
    Type: Application
    Filed: September 22, 2008
    Publication date: September 22, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tsuyoshi Nishioka, Hirokazu Ishizuka
  • Patent number: 7894604
    Abstract: Provided is a quantum cryptography communication apparatus capable of preventing a go photon pulse from being phase modulated and also capable of freely selecting any repetitive frequency of a light source.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: February 22, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tsuyoshi Nishioka, Toshio Hasegawa, Hirokazu Ishizuka
  • Publication number: 20100226659
    Abstract: The present invention is directed to realize a stable and highly-efficient quantum communication without being influenced by the jitter of the heralding signal. In regard to the quantum encryption transmitting apparatus 200, the pulse-driven heralded single-photon source 201 generates a photon pair, outputs one photon of the photon pair, and outputs the other photon of the photon pair as a heralding signal. The timing adjuster 202 synchronizes the heralding signal with a clock signal for pulse driving the pulse-driven heralded single-photon source 201, and outputs as a trigger signal. The quantum communication modulating unit 203 implements the signal modulation to a quantum signal, in timing with the trigger signal, and transmits the quantum signal to the quantum encryption receiving apparatus 300 via the quantum communication path 101. The heralding signal transmitting unit 205 transmits the heralding signal to the quantum encryption receiving apparatus 300 via the heralding signal communication path 102.
    Type: Application
    Filed: August 4, 2006
    Publication date: September 9, 2010
    Applicants: Mitsubishi Electric Corporation, National University Corp. Hokkaido University
    Inventors: Tsuyoshi Nishioka, Shigeki Takeuchi, Alexandre Soujaeff, Toshio Hasegawa, Junnichi Abe
  • Patent number: 7649996
    Abstract: A qubit generating unit generates a qubit having a predetermined quantum state. A qubit encoding unit performs quantum encoding of the generated qubit. A first pseudo-random number generating unit generates a first pseudo-random number from secretly shared information, which has been secretly shared with the quantum receiving device in advance. A quantum modulator performs quantum modulation of the qubit on which quantum encoding has been performed based on the first pseudo-random number and sends the modulated qubit to the quantum receiving device. A second pseudo-random number generating unit generates a second pseudo-random number from secretly shared information which has been secretly shared with the above quantum sending device in advance synchronously with generation of the above first pseudo-random number.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: January 19, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsuyoshi Nishioka, Hirokazu Ishizuka, Toshio Hasegawa
  • Publication number: 20080144823
    Abstract: A wavelength demultiplexer demultiplexes a wavelength multiplexed incident photon pulse string based on wavelengths of the photons in the photon pulse string. Each of a plurality of photon detectors detects a photon that is demultiplexed by the wavelength demultiplexer and outputs a signal based on detected photon, and a bias applying unit applies a gate pulse as a bias voltage to at least some of the photon detectors to match an incidence timing of an output light of the wavelength demultiplexer to the photon detectors. A data processor converts the signals from the photon detectors into time series signals.
    Type: Application
    Filed: July 12, 2004
    Publication date: June 19, 2008
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Jun'ichi Abe, Katsuhiro Shimizu, Toshio Hasegawa, Tsuyoshi Nishioka, Hirokazu Ishizuka
  • Publication number: 20070297684
    Abstract: An objective, when extracting from data such as an image, an audio, and a moving picture, is to extract the information from raw data that has not been processed for extraction, extract many different items of information for different purposes from the same data, and increase the amount of information that can be extracted. In a mobile phone with camera 101, a photographing section 204 photographs an image. A data analyzing section 207 analyses the image based on analysis definition information, which is stored in a definition storing section 201, to define how much data in which part to be read in what order when extracting information from the image. A data converting section 208 extracts information from the image based on code definition information, which is stored in the definition storing section 201, to define a method of computing data taken out according to the analysis definition information.
    Type: Application
    Filed: December 16, 2004
    Publication date: December 27, 2007
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hirokazu Ishizuka, Tsuyoshi Nishioka, Toshio Hasegawa, Toyohiro Tsurumaru
  • Publication number: 20070182968
    Abstract: Provided is a quantum cryptography communication apparatus capable of preventing a go photon pulse from being phase modulated and also capable of freely selecting any repetitive frequency of a light source.
    Type: Application
    Filed: May 17, 2004
    Publication date: August 9, 2007
    Inventors: Tsuyoshi Nishioka, Toshio Hasegawa, Hirokazu Ishizuka
  • Publication number: 20050157875
    Abstract: A qubit generating unit 40 generates a qubit having a predetermined quantum state. A qubit encoding unit 70 performs quantum encoding of the generated qubit. A first pseudo-random number generating unit 60 generates a first pseudo-random number from secretly shared information 3 which has been secretly shared with the quantum receiving device 200 in advance. A quantum modulator 80 performs quantum modulation of the qubit on which quantum encoding has been performed based on the first pseudo-random number and sends the modulated qubit to the quantum receiving device 200. A second pseudo-random number generating unit 220 generates a second pseudo-random number from secretly shared information 21 which has been secretly shared with the above quantum sending device 100 in advance synchronously with generation of the above first pseudo-random number. A qubit demodulator 230 performs quantum demodulation of the qubit which has been received from the quantum demodulator 80 based on the second pseudo-random number.
    Type: Application
    Filed: September 26, 2002
    Publication date: July 21, 2005
    Inventors: Tsuyoshi Nishioka, Hirokazu Ishizuka, Toshio Hasegawa
  • Patent number: 6778314
    Abstract: In case of the high-speed operation, it is difficult to ignore the time required for the voltage to rise to the level of voltage to be applied and the time to fall to 0V when the voltage is applied to the phase modulator. The first phase modulator 71 and the second phase modulator 73 are connected in parallel, and the optical path is switched by the switching unit 55 of the control unit 51 between the first optical switch 33 and the second optical switch 35. The switching unit 55 of the control unit 51 supplies the phase modulation data 31 stored in the phase modulation data memory 53 to the first voltage generating unit 57 or the second voltage generating unit 59 to generate the voltage necessary for the phase modulation.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: August 17, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshio Hasegawa, Tsuyoshi Nishioka, Hirokazu Ishizuka
  • Publication number: 20040005056
    Abstract: An optical system of a transmission device for quantum cryptograph includes a Faraday mirror and a phase modulator. The phase modulator has multiple refractivity, and it is inevitable to lose an extreme amount of input due to the configuration of the optical path. As a result, the S/N ratio is reduced, which makes an adjustment at start time difficult. A light pulse incident to the transmission device includes two light pulses of the TE polarization wave and the TM polarization wave for a phase modulator 8. The light pulse of the TE polarization wave is changed to the TM polarization wave by a Faraday mirror 7, and the TM polarization wave is changed to the TE polarization wave by rotating the polarization plate and reflecting by the Faraday mirror 7, and output from the transmission device. Two polarization beam splitters 5 and 6 are used so that the light pulse of the TM polarization wave should bypass the phase modulator 8. Only light pulse of the TE polarization wave is carried to the phase modulator 8.
    Type: Application
    Filed: March 7, 2003
    Publication date: January 8, 2004
    Inventors: Tsuyoshi Nishioka, Toshio Hasegawa, Hirokazu Ishizuka
  • Publication number: 20030184840
    Abstract: In case of the high-speed operation, it is difficult to ignore the time required for the voltage to rise to the level of voltage to be applied and the time to fall to 0V when the voltage is applied to the phase modulator. The first phase modulator 71 and the second phase modulator 73 are connected in parallel, and the optical path is switched by the switching unit 55 of the control unit 51 between the first optical switch 33 and the second optical switch 35. The switching unit 55 of the control unit 51 supplies the phase modulation data 31 stored in the phase modulation data memory 53 to the first voltage generating unit 57 or the second voltage generating unit 59 to generate the voltage necessary for the phase modulation.
    Type: Application
    Filed: March 11, 2003
    Publication date: October 2, 2003
    Inventors: Toshio Hasegawa, Tsuyoshi Nishioka, Hirokazu Ishizuka