Patents by Inventor Masaki Itabashi

Masaki Itabashi 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: 11560106
    Abstract: A control device for a vehicle-mounted apparatus, the control device includes: a second CPU state judging section provided to the first CPU, and configured to judge a state of the second CPU based on a state of the inter-CPU communication and a voltage value of the electric power supplied from the first electric power supply section, or the second reset signal; and a first CPU state judging section provided to the second CPU, and configured to judge a state of the first CPU based on the state of the inter-CPU communication and a voltage value of the electric power supplied from the second electric power supply section, or the first reset signal.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: January 24, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Mitsuo Sasaki, Masaki Itabashi, Tadashi Suganuma
  • Publication number: 20220123684
    Abstract: A motor actuator of the present invention includes, between a battery and an inverter, a first solid state relay and a second solid state relay in which directions of parasitic diodes are opposite to each other. When supply of power from the battery to the inverter is to be interrupted, the first solid state relay is brought into an OFF state or all of a plurality of field effect transistors are brought into the OFF state, and then the second solid state relay is brought into the OFF state.
    Type: Application
    Filed: January 14, 2020
    Publication date: April 21, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Hiroyoshi GOMI, Masaki ITABASHI, Yawara KATO, Kazutoshi TANABE
  • Patent number: 11283389
    Abstract: A motor system includes first and second solid-state relays disposed between an inverter configured to control energization to a first coil set of a motor and an in-vehicle battery for supplying power to the inverter, and connected in series in this order in a direction from the inverter to the battery. The first solid-state relay has a first diode of which a forward direction is from the battery to the inverter. The second solid-state relay has a second diode of which a forward direction is from the inverter to the battery. Motor relays, each having a third diode of which a forward direction is from the neutral point to the inverter, are connected to the phase coils of the first coil set. When power supply from the battery to the inverter is interrupted, the first solid-state relay is turned off after the motor relays are turned off.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 22, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Makoto Kimura, Masaki Itabashi
  • Publication number: 20220063643
    Abstract: According to one aspect of the present invention, a control apparatus for an in-vehicle apparatus includes a first sensor and a second sensor configured to output sensor data, and a first microprocessor and a second microprocessor. A second sensor data request signal generation portion of the second microprocessor is configured to generate a second sensor data request signal. The first microprocessor includes a first sensor data request signal generation portion, a first data comparison portion, a first abnormality determination portion, and a first instruction signal generation portion. The first sensor data request signal generation portion is configured to generate a first sensor data request signal. The first data comparison portion is configured to compare first comparison data selected from a plurality of an first sensor data and second comparison data selected from a plurality of an second sensor data.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 3, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Shota FUJIWARA, Kazuya YAMANO, Masaki ITABASHI, Toshiaki MEGURO
  • Patent number: 10870444
    Abstract: Provided is a control apparatus for a power steering apparatus, and a power steering apparatus using it that can reduce electromagnetic noise with the aid of a spread spectrum, thereby realizing stabilized motor control.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 22, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masaki Kashima, Yoshitaka Sugiyama, Masaki Itabashi, Tadashi Suganuma, Kazuya Yamano
  • Publication number: 20200130615
    Abstract: A control device for a vehicle-mounted apparatus, the control device includes: a second CPU state judging section provided to the first CPU, and configured to judge a state of the second CPU based on a state of the inter-CPU communication and a voltage value of the electric power supplied from the first electric power supply section, or the second reset signal; and a first CPU state judging section provided to the second CPU, and configured to judge a state of the first CPU based on the state of the inter-CPU communication and a voltage value of the electric power supplied from the second electric power supply section, or the first reset signal.
    Type: Application
    Filed: May 9, 2018
    Publication date: April 30, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Mitsuo SASAKI, Masaki ITABASHI, Tadashi SUGANUMA
  • Publication number: 20200021233
    Abstract: A motor system includes first and second solid-state relays disposed between an inverter configured to control energization to a first coil set of a motor and an in-vehicle battery for supplying power to the inverter, and connected in series in this order in a direction from the inverter to the battery. The first solid-state relay has a first diode of which a forward direction is from the battery to the inverter. The second solid-state relay has a second diode of which a forward direction is from the inverter to the battery. Motor relays, each having a third diode of which a forward direction is from the neutral point to the inverter, are connected to the phase coils of the first coil set. When power supply from the battery to the inverter is interrupted, the first solid-state relay is turned off after the motor relays are turned off.
    Type: Application
    Filed: January 25, 2018
    Publication date: January 16, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Makoto KIMURA, Masaki ITABASHI
  • Publication number: 20190047614
    Abstract: Provided is a control apparatus for a power steering apparatus, and a power steering apparatus using it that can reduce electromagnetic noise with the aid of a spread spectrum, thereby realizing stabilized motor control.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 14, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masaki KASHIMA, Yoshitaka SUGIYAMA, Masaki ITABASHI, Tadashi SUGANUMA, Kazuya YAMANO
  • Patent number: 5856284
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: January 5, 1999
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5681804
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 28, 1997
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5496492
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: March 5, 1996
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5282871
    Abstract: A spinning lubricant composition for acrylic fiber, comprising:(a) at least one wax having a melting point of 30 to 130 degree, selected from the group consisting of ester wax, paraffin wax, polyethylene wax and polyethylene oxide wax, and(b) at least one surfactant, being cationic or amphoteric, selected from the group consisting of surfactants having the respective formulae (1) to (5): ##STR1##
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: February 1, 1994
    Assignee: KAO Corporation
    Inventors: Koichi Yamane, Masayuki Abe, Masaki Itabashi, Jose S. Comas
  • Patent number: 4959206
    Abstract: A high-concentration pearling agent dispersion is disclosed. The dispersion comprises as essential components, at a specific proportion, a fatty acid glycolic ester of formula (I): ##STR1## wherein R.sub.1 represents a linear or branched, saturated or unsaturated hydrocarbon group of a C.sub.13-21 carbon atom content, Y represents a hydrogen atom or a ##STR2## group, m indicates a value of 1 to 3, which is the average number of ethylene oxide group addition moles; an alkylsulfosuccinate or a polyoxyalkylenealkylsulfosuccinate of formula (II): ##STR3## wherein R.sub.2 represents a linear or branched alkyl group of a C.sub.8-20 carbon atom content, R.sub.3 represents a hydrogen atom or a methyl group, M represents an alkali metal, an alkali earth metal, an ammonium ion, an alkyl group-substituted ammonium with the alkyl group having a C.sub.1-3 carbon atom content, or a hydroxy alkyl group-substituted ammonium with the hydroxy alkyl group having a C.sub.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: September 25, 1990
    Assignee: KAO Corporation
    Inventors: Angel R. Noguera, Carlos C. Planells, Masaki Itabashi