Patents by Inventor Takuya TOKUNAGA

Takuya TOKUNAGA 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).

  • Heterocyclic compound and use thereof
    Patent number: 11952344
    Abstract: Provided is a heterocyclic compound that can have an antagonistic action on an NMD A receptor containing the NR2B subunit and that is expected to be useful as a prophylactic or therapeutic agent for depression, bipolar disorder, migraine, pain, peripheral symptoms of dementia and the like. A compound represented by the formula (I), wherein each symbol is as defined in the DESCRIPTION, or a salt thereof.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 9, 2024
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Yuya Oguro, Makoto Kamata, Shuhei Ikeda, Takeshi Wakabayashi, Norihito Tokunaga, Taku Kamei, Mitsuhiro Ito, Shigemitsu Matsumoto, Hirotaka Kamitani, Takaharu Hirayama, Toshio Tanaka, Hiroshi Banno, Nobuyuki Takakura, Jinichi Yonemori, Takuya Fujimoto
  • Grommet for attaching cover and cover
    Patent number: 11846309
    Abstract: The concave part includes an open end portion having an inner diameter greater than an outer diameter of a tip end portion of a ball stud, a fitting portion which is connected to the open end portion and has an inlet smaller than the outer diameter of the tip end portion and in which the tip end portion is housed, and a plurality of slits which are formed in a fitting direction of the ball stud from the open end portion and arranged at a predetermined interval along the circumference of the concave part. The pull-out prevention part includes a plurality of first ribs located on extensions of the respective slits.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: December 19, 2023
    Assignee: Sumitomo Riko Company Limited
    Inventors: Koji Tomiyama, Koichiro Iwanaga, Takuya Tokunaga, Ryosuke Kutsuna, Junichiro Suzuki
  • GROMMET FOR ATTACHING COVER AND COVER
    Publication number: 20210190114
    Abstract: The concave part includes an open end portion having an inner diameter greater than an outer diameter of a tip end portion of a ball stud, a fitting portion which is connected to the open end portion and has an inlet smaller than the outer diameter of the tip end portion and in which the tip end portion is housed, and a plurality of slits which are formed in a fitting direction of the ball stud from the open end portion and arranged at a predetermined interval along the circumference of the concave part. The pull-out prevention part includes a plurality of first ribs located on extensions of the respective slits.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: Sumitomo Riko Company Limited
    Inventors: Koji TOMIYAMA, Koichiro IWANAGA, Takuya TOKUNAGA, Ryosuke KUTSUNA, Junichiro SUZUKI