Patents by Inventor Takashi Saitou

Takashi Saitou 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: 10974620
    Abstract: An occupant detection system includes a transmitter provided adjacent to a first side face of a vehicle before a predetermined seat and successively transmitting a radio wave over a range covering a seat door located on a second side face of the vehicle and in a same row as the predetermined seat, a receiver provided adjacent to the second side face behind the predetermined seat and receiving the radio wave transmitted from the transmitter, and an occupant detection device including a reception intensity acquirer, an occupant detector, an opening and closing detector. The reception intensity acquirer successively acquires a reception intensity of a radio wave successively received by the receiver. The occupant detector detects an occupant in the vehicle according to the reception intensity of the radio wave received by the receiver while the opening and closing detector detects that the seat door is open.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 13, 2021
    Assignee: DENSO CORPORATION
    Inventors: Takashi Saitou, Koji Sakamoto, Takahisa Matsumoto
  • Publication number: 20210105573
    Abstract: A mobile device position estimation system includes: an in-vehicle device that includes at least three in-vehicle antennas that transmits an electric wave; and a mobile device. The mobile device includes a reception intensity detection portion that detects a reception signal of the electric wave. The in-vehicle device or the mobile device includes a sensitivity error decision portion that decides a reception sensitivity error to cause multiple mobile device detection areas to be closest to a state where the multiple mobile device detection areas intersect at one point while deciding mobile device detection areas, an annular area decision portion that decides multiple annular areas where the mobile device exists, and a mobile device area estimation portion that estimates an overlapping area where the multiple annular areas overlap as a mobile device existence area.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Inventors: Shutaro TOKUNAGA, Takashi SAITOU, Tetsuya KUSUMOTO, Takashi SHINODA
  • Publication number: 20210092704
    Abstract: In a terminal position estimation system, a terminal position estimation apparatus, or a terminal position estimation method, an electric wave is received by a reception antenna of a communication terminal and is transmitted from multiple transmission antennas. A communication terminal position is estimated based on a magnetic field strength of the electric wave. When the communication terminal position is estimated, a position satisfying an approximate expression is estimated as the communication terminal position. The approximate expression shows a magnetic field strength distribution and is expressed by two variables of a distance from the multiple transmission antennas to the communication terminal and an angle between an axial direction of the multiple transmission antennas and a direction in which the communication terminal is positioned.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Tetsuya KUSUMOTO, Takashi SAITOU, Takashi SHINODA
  • Patent number: 10945160
    Abstract: The present invention provides a data management apparatus for managing a plurality of data items output by a plurality of communication devices that output data.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 9, 2021
    Assignee: KDDI CORPORATION
    Inventors: Atsushi Miyamoto, Takashi Saitou, Masato Andou
  • Patent number: 10877141
    Abstract: A detection apparatus includes: a transmitter transmitting an electric wave toward an inside of a vehicle; a receiver receiving the transmitted electric wave each time the transmitter transmits the electric wave, and performing output in accordance with reception strength of the received electric wave; and a determination portion, based on the reception strength of the electric wave received by the receiver, comparing a change mode of the electric wave received by the receiver changing over time to a predetermined reference mode and determining whether a person is present between the receiver and the transmitter.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: December 29, 2020
    Assignee: DENSO CORPORATION
    Inventors: Takashi Saitou, Koji Sakamoto, Takahisa Matsumoto, Masashi Mori
  • Publication number: 20200323301
    Abstract: A heating device includes an insole member which is disposed in a footwear and which includes a heating member, and an induction heating coil that heats the heating member through electromagnetic induction, the insole member being formed separately from the footwear.
    Type: Application
    Filed: February 2, 2017
    Publication date: October 15, 2020
    Inventors: Jun YAMAOKA, Koji ITO, Kenichiro MAEDA, Takashi SAITOU
  • Patent number: 10771941
    Abstract: A vehicle system device is provided. The vehicle system device is used in a vehicle system that enables an in-vehicle device used in a vehicle and a mobile device carried by a user to transmit and receive a signal via a wireless communication. The vehicle system device may measure a time from a time point at which a reception intensity of the signal exceeds a threshold to a time point at which the reception intensity falls below the threshold.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: September 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Tetsuya Kusumoto, Takashi Saitou, Kenichiro Sanji, Koji Sakamoto
  • Patent number: 10759386
    Abstract: Whether a radio wave received by a portable terminal is a radio wave directly received from an in-vehicle apparatus is determined, based on (i) the characteristic related to the direction of the magnetic field or electric field in the radio wave received by the portable terminal, (ii) the information representing the position of the portable terminal, and (iii) the information representing the orientation of the portable terminal.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: September 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Tetsuya Kusumoto, Takashi Saitou, Koji Sakamoto
  • Patent number: 10711148
    Abstract: Provided are a coloring composition including a compound represented by Formula (1) shown in this specification and a compound represented by Formula (D) shown in this specification, an ink jet recording ink including the coloring composition, an ink jet recording method using the ink jet recording ink, and an ink jet printer cartridge that is filled with the ink jet recording ink.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Takashi Saitou, Yusuke Sakai, Yoshihiko Fujie, Yoshiaki Nagata
  • Publication number: 20200216702
    Abstract: An ink set includes: a magenta ink composition; a cyan ink composition; a yellow ink composition; and a black ink composition, in which the magenta ink composition contains at least one compound represented by the general formula (1) as defined herein, the cyan ink composition contains at least one compound represented by the general formula (2) as defined herein, the yellow ink composition contains at least one compound selected from the group Y as defined herein, and the black ink composition contains at least one black pigment dispersion liquid including carbon black.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Keiichi TATEISHI, Takashi SAITOU, Yusuke SAKAI, Yuta TAKASAKI
  • Publication number: 20200216701
    Abstract: An ink set includes a magenta ink composition; a cyan ink composition; a yellow ink composition; and a black ink composition, in which the magenta ink composition contains at least one compound represented by the general formula (1) as defined herein, the cyan ink composition contains at least one compound represented by the general formula (2) as defined herein, the yellow ink composition contains at least one compound selected from the group Y as defined herein, and the black ink composition contains at least one compound selected from the group BK as defined herein.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Keiichi TATEISHI, Takashi SAITOU, Yusuke SAKAI, Yuta TAKASAKI
  • Patent number: 10703910
    Abstract: Provided are a coloring composition including a compound represented by Formula (1) shown in this specification and a compound represented by Formula (D) shown in this specification, an ink jet recording ink including the coloring composition, an ink jet recording method using the ink jet recording ink, and an ink jet printer cartridge that is filled with the ink jet recording ink.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: July 7, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Takashi Saitou, Yusuke Sakai, Takuma Amemiya, Yoshihiko Fujie, Yoshiaki Nagata
  • Patent number: 10696125
    Abstract: A vehicle air conditioner includes a casing, a heater core that heats an air flow by heat exchange between the air flow and a heat medium, an electric heater that heats an air flow by an electric power, and a determiner that determines whether a temperature of the heat medium is equal to or lower than a predetermined temperature. When the determiner determines that the temperature of the heat medium is equal to or lower than the predetermined temperature, an air flow introduced into a casing is heated by the electric heater and flows toward the vehicle interior without passing through the heater core.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 30, 2020
    Assignees: DENSO CORPORATION, SOKEN, INC.
    Inventors: Koji Ito, Yasuhiko Niimi, Jun Yamaoka, Takashi Saitou
  • Patent number: 10689535
    Abstract: Provided are a coloring composition including a compound represented Formula (1) shown in the specification and at least one compound selected from the group consisting of the compound represented by Formula (D) shown in the specification and the compound represented by Formula (E) shown in the specification, an ink jet recording ink including the coloring composition, an ink jet recording method using the ink jet recording ink, and an ink jet printer cartridge that is filled with the ink jet recording ink.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Takashi Saitou, Yusuke Sakai, Yoshihiko Fujie, Yoshiaki Nagata
  • Patent number: 10677904
    Abstract: An object detection apparatus includes: a transmitter transmitting a radio wave with a predetermined intensity at the radio wave transmission end; a receiver receiving the radio wave, which is to be transmitted when the radio wave is transmitted from the transmitter, at the radio wave reception end; a setter setting a transmission scheme of the transmitter to a plurality of different transmission characteristics; a transmission controller controlling the transmitter to transmit the radio wave with the transmission scheme, which is to be set when the setter sets the transmission scheme; and a detector detecting a presence of the object at a position inside the vehicle, based on a detected reception intensity indicating a respective radio wave reception intensity received by the receiver, the object blocking the radio wave transmitted from the transmitter to the receiver at the position inside the vehicle.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 9, 2020
    Assignee: DENSO CORPORATION
    Inventors: Takashi Saitou, Yuuji Kakuya, Takahisa Matsumoto
  • Publication number: 20200037133
    Abstract: A vehicle system device is provided. The vehicle system device is used in a vehicle system that enables an in-vehicle device used in a vehicle and a mobile device carried by a user to transmit and receive a signal via a wireless communication. The vehicle system device may measure a time from a time point at which a reception intensity of the signal exceeds a threshold to a time point at which the reception intensity falls below the threshold.
    Type: Application
    Filed: October 2, 2019
    Publication date: January 30, 2020
    Inventors: Tetsuya KUSUMOTO, Takashi SAITOU, Kenichiro SANJI, Koji SAKAMOTO
  • Publication number: 20190256048
    Abstract: Whether a radio wave received by a portable terminal is a radio wave directly received from an in-vehicle apparatus is determined, based on (i) the characteristic related to the direction of the magnetic field or electric field in the radio wave received by the portable terminal, (ii) the information representing the position of the portable terminal, and (iii) the information representing the orientation of the portable terminal.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Tetsuya KUSUMOTO, Takashi SAITOU, Koji SAKAMOTO
  • Publication number: 20190261223
    Abstract: The present invention provides a data management apparatus for managing a plurality of data items output by a plurality of communication devices that output data.
    Type: Application
    Filed: September 25, 2017
    Publication date: August 22, 2019
    Applicant: KDDI CORPORATION
    Inventors: Atsushi MIYAMOTO, Takashi SAITOU, Masato ANDOU
  • Publication number: 20190126779
    Abstract: An occupant detection system includes a transmitter provided adjacent to a first side face of a vehicle before a predetermined seat and successively transmitting a radio wave over a range covering a seat door located on a second side face of the vehicle and in a same row as the predetermined seat, a receiver provided adjacent to the second side face behind the predetermined seat and receiving the radio wave transmitted from the transmitter, and an occupant detection device including a reception intensity acquirer, an occupant detector, an opening and closing detector. The reception intensity acquirer successively acquires a reception intensity of a radio wave successively received by the receiver. The occupant detector detects an occupant in the vehicle according to the reception intensity of the radio wave received by the receiver while the opening and closing detector detects that the seat door is open.
    Type: Application
    Filed: December 26, 2018
    Publication date: May 2, 2019
    Inventors: Takashi SAITOU, Koji SAKAMOTO, Takahisa MATSUMOTO
  • Publication number: 20180371254
    Abstract: Provided are a coloring composition including a compound represented by Formula (1) shown in this specification and a compound represented by Formula (D) shown in this specification, an ink jet recording ink including the coloring composition, an ink jet recording method using the ink jet recording ink, and an ink jet printer cartridge that is filled with the ink jet recording ink.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 27, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Keiichi TATEISHI, Takashi SAITOU, Yusuke SAKAI, Takuma AMEMIYA, Yoshihiko FUJIE, Yoshiaki NAGATA