Patents by Inventor Yutaka Kurahashi

Yutaka Kurahashi 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).

  • Method for producing antibody-drug conjugate
    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
  • Article delivery and unloading device
    Patent number: 4065007
    Abstract: A vehicle adapted to be conveyed along a track has an upper platform for supporting an article thereon. The platform is adapted to be inclined selectively to one side or the other of the track allowing the article being carried to slide off the vehicle into a chute but is maintained in the horizontal position by a locking device. As the vehicle approaches an unloading chute, the locking device is automatically unlocked and the platform is pivoted to one of its two inclined positions.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: December 27, 1977
    Inventor: Yutaka Kurahashi
  • Article delivery and unloading device
    Patent number: 4054215
    Abstract: A vehicle adapted to be conveyed along a track has an inclined upper platform for supporting an article thereon. A gate hinged to the lower end of the platform is maintained in an upright position by a rotatable lever thereby preventing the article from sliding off of the vehicle. As the vehicle approaches an unloading chute, the lever is rotated to an inoperative position allowing the gate to open and the article to slide off the vehicle into the chute.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: October 18, 1977
    Inventor: Yutaka Kurahashi