Patents by Inventor Masanari UMEMURA

Masanari UMEMURA 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).

  • CANCER TREATMENT APPARATUS AND METHOD OF CONTROLLING CANCER TREATMENT APPARATUS
    Publication number: 20240316357
    Abstract: An alternating magnetic field having a frequency, at which a sufficient antitumor effect can be obtained, is enabled to be applied to a living body for a previously prescribed period of time while restricting an amount of heat generation from the living body. A cancer treatment apparatus includes a magnetic field generator configured to generate an alternating magnetic field to be applied to a living body, and a magnetic field controller configured to increase an intensity of the alternating magnetic field generated by the magnetic field generator stepwise until a first period of time elapses since application of the alternating magnetic field to the living body, and to set the intensity of the alternating magnetic field to a previously set maximum value from elapse of the first period of time until a timing to end the application of the alternating magnetic field.
    Type: Application
    Filed: March 18, 2024
    Publication date: September 26, 2024
    Applicants: Ricoh Company, Ltd., Public University Corporation Yokohama City University
    Inventors: Kazuhito KISHI, Takashi YAMAGUCHI, Motokazu HASEGAWA, Masanari UMEMURA, Yoshihiro ISHIKAWA
  • CANCER TREATMENT APPARATUS
    Publication number: 20240316358
    Abstract: An alternating magnetic field having a frequency, at which a sufficient antitumor effect can be obtained, is enabled to be applied to a living body while restricting an amount of heat generation. A cancer treatment apparatus includes a magnetic field generator including a coil configured to generate an alternating magnetic field to be applied to a living body, and a cooler configured to cool a magnetic field application part of the living body in which a temperature rises in response to application of the alternating magnetic field.
    Type: Application
    Filed: March 21, 2024
    Publication date: September 26, 2024
    Applicants: Ricoh Company, Ltd., Public University Corporation Yokohama City University
    Inventors: Kazuhito KISHI, Takashi YAMAGUCHI, Motokazu HASEGAWA, Masanari UMEMURA, Yoshihiro ISHIKAWA
  • POWER SUPPLY APPARATUS AND MAGNETIC FIELD GENERATION SYSTEM
    Publication number: 20230355967
    Abstract: A power supply apparatus includes a power supply configured to apply an alternating current to a magnetic field generation apparatus; and a controller configured to control the alternating current applied by the power supply. The controller controls the power supply to apply the alternating current having a waveform pattern including a plurality of current waveforms having different frequency spectrums from each other.
    Type: Application
    Filed: July 6, 2023
    Publication date: November 9, 2023
    Applicants: Ricoh Company, Ltd., PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
    Inventors: Kazuhito KISHI, Masami Takai, Motokazu Hasegawa, Masataka Akaishi, Masanari Umemura, Yoshihiro Ishikawa, Taisuke Akimoto
  • Power supply apparatus and magnetic field generation system
    Patent number: 11730956
    Abstract: A power supply apparatus includes a power supply configured to apply an alternating current to a magnetic field generation apparatus; and a controller configured to control the alternating current applied by the power supply. The controller controls the power supply to apply the alternating current having a waveform pattern including a plurality of current waveforms having different frequency spectrums from each other.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 22, 2023
    Assignees: Ricoh Company, Ltd., PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
    Inventors: Kazuhito Kishi, Masami Takai, Motokazu Hasegawa, Masataka Akaishi, Masanari Umemura, Yoshihiro Ishikawa, Taisuke Akimoto
  • CANCER TREATMENT APPARATUS
    Publication number: 20220314016
    Abstract: A cancer treatment apparatus including a magnetic field generator that generates a magnetic field of 100 kHz to 300 kHz to be applied to affected tissues.
    Type: Application
    Filed: June 9, 2022
    Publication date: October 6, 2022
    Inventors: Yoshihiro ISHIKAWA, Masanari UMEMURA, Taisuke AKIMOTO
  • Cancer treatment apparatus
    Patent number: 11383094
    Abstract: A cancer treatment apparatus including a magnetic field generator that generates a magnetic field of 100 kHz to 300 kHz to be applied to affected tissues.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 12, 2022
    Assignee: Public University Corporation Yokohama City University
    Inventors: Yoshihiro Ishikawa, Masanari Umemura, Taisuke Akimoto
  • POWER SUPPLY APPARATUS AND MAGNETIC FIELD GENERATION SYSTEM
    Publication number: 20190358448
    Abstract: A power supply apparatus includes a power supply configured to apply an alternating current to a magnetic field generation apparatus; and a controller configured to control the alternating current applied by the power supply. The controller controls the power supply to apply the alternating current having a waveform pattern including a plurality of current waveforms having different frequency spectrums from each other.
    Type: Application
    Filed: May 20, 2019
    Publication date: November 28, 2019
    Applicants: Ricoh Company, Ltd., PUBLIC UNIVERSITY CORPORATION YOKOHAMA CITY UNIVERSITY
    Inventors: Kazuhito Kishi, Masami Takai, Motokazu Hasegawa, Masataka Akaishi, Masanari Umemura, Yoshihiro Ishikawa, Taisuke Akimoto
  • CANCER TREATMENT APPARATUS
    Publication number: 20190351250
    Abstract: A cancer treatment apparatus including a magnetic field generator that generates a magnetic field of 100 kHz to 300 kHz to be applied to affected tissues.
    Type: Application
    Filed: November 22, 2017
    Publication date: November 21, 2019
    Inventors: Yoshihiro ISHIKAWA, Masanari UMEMURA, Taisuke AKIMOTO