Patents by Inventor Tatsuya Hamada

Tatsuya Hamada 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).

  • Semiconductor device including sense amplifier and operation method of semiconductor device
    Patent number: 11984147
    Abstract: A semiconductor device storing data as a multilevel potential is provided. The semiconductor device includes a memory cell, first and second reference cells, first and second sense amplifiers, and first to third circuits. The first circuit has a function of outputting, to a first wiring and a third wiring, a first potential corresponding to a first signal output from the memory cell. The second circuit has a function of outputting, to a second wiring, a first reference potential corresponding to a second signal output from the first reference cell. The third circuit has a function of outputting, to the fourth wiring, a second reference potential corresponding to a third signal output from the second reference cell when a second switch is in an off state. The first sense amplifier refers to the first potential and the first reference potential and changes potentials of the first wiring and the second wiring.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 14, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takanori Matsuzaki, Tatsuya Onuki, Yuki Okamoto, Toshiki Hamada
  • Random interesterification lipase
    Patent number: 11549130
    Abstract: An object of the present invention is to provide an enzyme showing random transesterification ability, which is suitable for food applications. Provided is a random transesterification lipase having high heat resistance in oils and fats.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: January 10, 2023
    Assignee: AMANO ENZYME INC.
    Inventors: Hiroki Fujioka, Saki Norifune, Tatsuya Hamada, Tetsuya Takahashi, Yusuke Tanaka, Toru Katase
  • RANDOM INTERESTERIFICATION LIPASE
    Publication number: 20200370077
    Abstract: An object of the present invention is to provide an enzyme showing random transesterification ability, which is suitable for food applications. Provided is a random transesterification lipase having high heat resistance in oils and fats.
    Type: Application
    Filed: December 27, 2018
    Publication date: November 26, 2020
    Inventors: Hiroki Fujioka, Saki Norifune, Tatsuya Hamada, Tetsuya Takahashi, Yusuke Tanaka, Toru Katase