Patents by Inventor Kei KITAGAWA

Kei KITAGAWA 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: 11945882
    Abstract: Crystals of the compound represented by formula (1), a method for the production thereof, and a method for producing an antibody-drug conjugate using the crystals.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 2, 2024
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Tatsuya Yamaguchi, Takashi Kouko, Shigeru Noguchi, Yohei Yamane, Fumikatsu Kondo, Takahiro Aoki, Tadahiro Takeda, Kohei Sakanishi, Hitoshi Sato, Tsuyoshi Ueda, Shinji Matuura, Kei Kurahashi, Yutaka Kitagawa, Tatsuya Nakamura
  • Patent number: 10065461
    Abstract: A tire valve registration system including: a plurality of tire valves that are respectively installed on a plurality of tires and on a spare tire and that each transmit a radio signal that includes a valve ID and data on tire air pressure; and a receiver that is provided to a vehicle body and that is capable of receiving the radio signal from each of the plurality of tire valves. The system includes: a spare tire ID collecting unit that collects, as at least one spare tire candidate ID, the valve ID of at least one radio signal received by the receiver; and a spare tire ID confirming unit that confirms the ID of the spare tire.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 4, 2018
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kei Kitagawa, Katsuhide Kumagai, Yasuhiro Shibata, Masayuki Oya
  • Publication number: 20170028797
    Abstract: A tire valve registration system including: a plurality of tire valves that are respectively installed on a plurality of tires and on a spare tire and that each transmit a radio signal that includes a valve ID and data on tire air pressure; and a receiver that is provided to a vehicle body and that is capable of receiving the radio signal from each of the plurality of tire valves. The system includes: a spare tire ID collecting unit that collects, as at least one spare tire candidate ID, the valve ID of at least one radio signal received by the receiver; and a spare tire ID confirming unit that confirms the ID of the spare tire.
    Type: Application
    Filed: December 23, 2014
    Publication date: February 2, 2017
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kei KITAGAWA, Katsuhide KUMAGAI, Yasuhiro SHIBATA, Masayuki OYA
  • Patent number: 9428015
    Abstract: A tire identification code registration system for use with tire pressure detectors and a tire pressure monitoring system (TMPS) receiver. Each tire pressure detector, which includes a unique tire identification code, is coupled to a tire to detect the pressure of the tire and transmit a tire pressure signal. The receiver receives the tire pressure signal and monitors the pressure of the tire. The tire identification code registration system includes a storage manager that stores, in a memory, tire identification codes included in wireless signals received during a predetermined storage period as candidate tire identification codes. A registration unit registers the candidate tire identification codes in the memory as formal tire identification codes after the storage performed by the storage manager when the number of the candidate tire identification codes in the memory is equal to a predetermined storage number.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 30, 2016
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Kei Kitagawa, Katsuhide Kumagai, Yasuhiro Shibata
  • Publication number: 20150077238
    Abstract: A tire identification code registration system for use with tire pressure detectors and a tire pressure monitoring system (TMPS) receiver. Each tire pressure detector, which includes a unique tire identification code, is coupled to a tire to detect the pressure of the tire and transmit a tire pressure signal. The receiver receives the tire pressure signal and monitors the pressure of the tire. The tire identification code registration system includes a storage manager that stores, in a memory, tire identification codes included in wireless signals received during a predetermined storage period as candidate tire identification codes. A registration unit registers the candidate tire identification codes in the memory as formal tire identification codes after the storage performed by the storage manager when the number of the candidate tire identification codes in the memory is equal to a predetermined storage number.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 19, 2015
    Inventors: Kei KITAGAWA, Katsuhide KUMAGAI, Yasuhiro SHIBATA