Patents by Inventor Masashi Inaba

Masashi Inaba 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: 10837392
    Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position on the first power supply path between the first transistor and an upstream terminal of the solenoid. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and the transistor on the upstream side of the first power supply path or the transistor on the upstream side of the second power supply path.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Masashi Inaba, Noboru Nagase, Taichi Watanabe
  • Publication number: 20200284214
    Abstract: An injection controller includes a control IC outputting an energization instruction signal to apply a peak current to a fuel injection valve (i.e., an instruction TQ), and a current monitor unit detecting an electric current flowing in the fuel injection valve. The control IC corrects an output OFF time of the energization instruction signal based on a difference between (i) an integrated current of an ideal current profile which serves as a target current before reaching the peak current and (ii) an integrated current of an energization current in the fuel injection valve detected by the current monitor unit (i.e., an effective TQ).
    Type: Application
    Filed: February 28, 2020
    Publication date: September 10, 2020
    Inventors: Masashi INABA, Hiroyuki FUKUDA, Katsuya MINAMIJIMA
  • Patent number: 10670122
    Abstract: An automatic transmission where the first engagement element is positioned between the continuously variable speed change mechanism and a portion of the second power transmission path on the wheel side, at which the second power transmission path is coupled to the first power transmission path, and is allowed to be switched to the disengaged state for inertial traveling.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 2, 2020
    Assignee: AISIN AW CO., LTD.
    Inventors: Naoki Okoshi, Tomoya Hirao, Masashi Takizawa, Keita Shindo, Kazuya Inaba
  • Publication number: 20200072153
    Abstract: An injection control device has a current supply controller controlling a supply of an electric current for opening and closing a fuel injection valve, a current monitor monitoring the electric current supplied to the valve, and a boost controller performing a boost voltage generation control that generates a boost voltage from a power supply voltage by a tuning ON/OFF of a switching element for supplying a peak current to open the valve. When the current supply controller supplies the peak current to the fuel injection valve, the boost controller stops the boost voltage generation control in a stop period that includes a timing when an electric current supply amount takes a threshold value of the peak current.
    Type: Application
    Filed: August 1, 2019
    Publication date: March 5, 2020
    Inventor: Masashi INABA
  • Publication number: 20190323466
    Abstract: An injection control device controls a drive of a solenoid in a high pressure pump for pressurizing fuel to an internal combustion engine. The injection control device includes a transistor on an upstream side of a power supply path from a direct current power supply line to the solenoid and a transistor provided on a downstream side of the power supply path. The injection control device further includes a diode at a position between an upstream terminal of the solenoid and ground, a transistor arranged in parallel with the diode, and a drive controller. The drive controller drives the solenoid to an open position by switching ON the transistors on the upstream and downstream sides of the power supply path.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 24, 2019
    Inventors: Masashi INABA, Noboru NAGASE, Taichi WATANABE
  • Publication number: 20190326044
    Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid, and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position between an upstream terminal of the solenoid and ground. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and one of the transistors on the upstream side power supply paths.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 24, 2019
    Inventors: Masashi INABA, Noboru NAGASE, Taichi WATANABE
  • Publication number: 20190323447
    Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position on the first power supply path between the first transistor and an upstream terminal of the solenoid. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and the transistor on the upstream side of the first power supply path or the transistor on the upstream side of the second power supply path.
    Type: Application
    Filed: April 12, 2019
    Publication date: October 24, 2019
    Inventors: Masashi INABA, Noboru NAGASE, Taichi WATANABE
  • Patent number: 9426922
    Abstract: An in-vehicle electronic control unit includes a circuit board equipped with a coil and a power supply circuit, a resin member covering the circuit board, and a metal bracket fixed to the resin member for attaching the circuit board to a vehicle. The metal bracket includes a first shield portion and a second shield portion. The first shield portion is arranged to only a part of an upper surface of the resin member so that when projected in a winding axis direction of the coil, the first shield portion overlaps at least a part of the coil. The second shield portion extends from the first shield portion in the winding axis direction of the coil and is arranged to only a part of a side surface of the resin member.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 23, 2016
    Assignee: DENSO CORPORATION
    Inventors: Masashi Inaba, Naoki Tanimoto, Kiyokazu Kamei
  • Publication number: 20160174407
    Abstract: An in-vehicle electronic control unit includes a circuit board equipped with a coil and a power supply circuit, a resin member covering the circuit board, and a metal bracket fixed to the resin member for attaching the circuit board to a vehicle. The metal bracket includes a first shield portion and a second shield portion. The first shield portion is arranged to only a part of an upper surface of the resin member so that when projected in a winding axis direction of the coil, the first shield portion overlaps at least a part of the coil. The second shield portion extends from the first shield portion in the winding axis direction of the coil and is arranged to only a part of a side surface of the resin member.
    Type: Application
    Filed: September 25, 2015
    Publication date: June 16, 2016
    Inventors: Masashi INABA, Naoki TANIMOTO, Kiyokazu KAMEI
  • Patent number: 8895863
    Abstract: A multilayer printed circuit board includes an insulating substrate, circuit layers arranged in the insulating substrate, an electronic component, an electrode disposed on the circuit layer exposed from a surface of the insulating substrate and including a soldered portion at which a terminal of the electronic component is soldered, an internal layer conductor disposed on the circuit layer located inside the insulating substrate and defining through holes in a radial manner centering on the soldered portion, a heat releasing conductor disposed on the circuit layer next to the circuit layer on which the internal layer conductor is disposed, and connection vias inserted in the through holes and coupling the electrode and the heat releasing conductor so as to enable a heat transfer between the electrode and the heat releasing conductor. The internal layer conductor and the heat releasing conductor overlap a whole area of the soldered portion.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: November 25, 2014
    Assignee: DENSO CORPORATION
    Inventors: Masashi Inaba, Akito Itou
  • Patent number: 5760273
    Abstract: A process for producing an unsymmetrical chain carbonic acid ester is described, which comprises reacting a first symmetrical chain carbonic acid ester with a second symmetrical chain carbonic acid ester or a monohydric alcohol in the presence of a catalyst comprising as an active catalyst component an oxide of at least one element selected from the Group IIIB elements of the periodic table.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: June 2, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masashi Inaba, Katsuaki Hasegawa, Noriko Shimizu, Yuji Ohgomori, Masayuki Honda, Takamichi Suzuki
  • Patent number: 5481053
    Abstract: A process for preparing unsaturated dimers of .alpha.-methylstyrene comprising dimerizing .alpha.-methylstyrene using activated clay or acid clay as a catalyst, in which the dimerization is carried out in the presence of a carbonic acid ester, preferably ethylene carbonate, which process achieves high selectivity to unsaturated dimers with ease in controlling the reaction temperature.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: January 2, 1996
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masashi Inaba, Shiroh Inui, Hideki Kurokawa, Fujio Mizutani
  • Patent number: 5324868
    Abstract: 4,4'-Biphenol is prepared through debutylation of 3,3', 5,5'-tetra-tert-butyl-4,4'-biphenol in an organic solvent in the presence of an acid catalyst wherein the debutylation is carried out continuously using at least two reactors aligned in series, with a high yield and high purity on an industrial level.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: June 28, 1994
    Assignee: Mitsubishi Petrochemical Company, Ltd.
    Inventors: Masashi Inaba, Norioki Mine, Mamoru Mizutani
  • Patent number: 5264085
    Abstract: A method of continuously distilling off the components of a mixture containing phenols, water and methanol using a single distillation column, wherein methanol is recovered from the top of the column, water containing phenols is dragged as a side stream from a recovery section of the column, and phenols are recovered as a bottom product. The method permits efficient separation by the single distillation column of the three components with high purity and low utility energy.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: November 23, 1993
    Assignee: Mitsubishi Petrochemical Company, Ltd.
    Inventors: Masashi Inaba, Yoshikazu Higaki, Kimikatsu Jinno, Mitsugi Kataoka, Norio Sato, Masayuki Honda
  • Patent number: 5097080
    Abstract: A process for preparing 4,4'-dihydroxybiphenyl is disclosed, which comprises debutylation of 3,3', 5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl in an organic solvent in the presence of an acid catalyst, wherein said debutylation is carried out in the presence of water and/or a lower alcohol. The desired product can be obtained at a high purity in a high yield.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: March 17, 1992
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masashi Inaba, Norioki Mine, Mamoru Mizutani
  • Patent number: 5023383
    Abstract: Aromatic alcohol is produced by reducing aromatic hydroperoxide with hydrogen in a liquid phase, using a Pt catalyst solely or a catalyst containing Pt and at least one element selected from the group consisting Pb, Sn, Cu, As, Sb, In, Se and Bi in a fixed bed reactor.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: June 11, 1991
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Masashi Inaba, Ryozo Hamana, Hideyuki Hase, Tatsuro Ashizawa
  • Patent number: 4906791
    Abstract: A process for preparing p-cumylphenol which comprises reacting phenol and .alpha.-methylstyrene in the presence of an inorganic solid acid catalyst having an acid point of an acid strength Ho of up to -3, for example, activated clay and recovering the aimed p-cumylphenol from the reaction mixture thus obtained by distilling the same while introducing an inert gas such as nitrogen and/or steam into the distillation system is disclosed. The p-cumylphenol thus obtained has a high purity and an improved color compared with those obtained by conventional methods.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: March 6, 1990
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Makoto Imanari, Hiroshi Iwane, Takahiro Sugawara, Satoshi Ohtaka, Masashi Inaba, Mitsugi Kataoka