Patents by Inventor Masaomi TSUTSUMI

Masaomi TSUTSUMI 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: 11949394
    Abstract: A first phase shift circuit amplifies, when a first signal, a second signal having a phase difference of 90 degrees from the first signal, a third signal having a phase difference of 180 degrees from the first signal, and a fourth signal having a phase difference of 270 degrees from the first signal are output from a 90-degree distributor that distributes an input signal, each of any three signals from among the first signal to the fourth signal. A second phase shift circuit amplifies each of any two signals of any three signals and one signal that is not amplified by the first phase shift circuit from among the first signal to the fourth signal. One or more phase shift circuits of the first phase shift circuit and the second phase shift circuit each include a compensation circuit that compensates for a phase error of the synthesized signal.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: April 2, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Wataru Yamamoto, Koji Tsutsumi, Masaomi Tsuru
  • Patent number: 11929723
    Abstract: A phase-variable frequency multiplier includes: a 90-degree divider for dividing an input signal into an I-signal and a Q-signal; an amplitude setting circuit for distributing each of the I-signal and the Q-signal to two paths, setting amplitudes of two of four signals including the two distributed I-signals and the two distributed Q-signals depending on a phase shift amount of the input signal, and outputting as set signals, the four signals including the signals with the set amplitudes; a first mixer for multiplying one of the two I-signals included in the set signals by one of the two Q-signals included in the set signals to generate a first signal having a frequency being twice the frequency of the input signal; a second mixer for multiplying the other of the two I-signals included in the set signals by the other of the two Q-signals included in the set signals to generate a second signal with an amplitude ratio with respect to the first signal, being a tangent or a reciprocal of a tangent of the phase sh
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: March 12, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Wataru Yamamoto, Koji Tsutsumi, Sho Ikeda, Masaomi Tsuru
  • Publication number: 20230408598
    Abstract: A parameter measurement unit measures intrinsic parameters of a plurality of used secondary batteries. A degradation degree calculation unit calculates degradation degrees of the plurality of used secondary batteries from the intrinsic parameter. A target degradation degree determination unit determines a target degradation degree from the degradation degrees of the plurality of used secondary batteries. An aging condition determination unit determines aging conditions of the plurality of used secondary batteries using the degradation degrees of the plurality of used secondary batteries and the target degradation degree. The aging processing unit performs aging processing on the plurality of used secondary batteries under the aging condition for each of the plurality of used secondary batteries.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 21, 2023
    Inventors: Asuki YANAGIHARA, Masaomi TSUTSUMI, Kinichi ITO, Hiroshi TAKEMURA, Fumikiyo KAWAHARA, Souko FUKAHORI