Patents by Inventor Ryoji Sasaki

Ryoji Sasaki 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).

  • Publication number: 20240154510
    Abstract: A magnetic geared rotating machine, includes: a stator which includes a plurality of stator magnets arranged so as to be aligned in a circumferential direction; a rotor which includes a plurality of rotor magnets arranged so as to be aligned in the circumferential direction, and in which the number of magnetic poles of the plurality of rotor magnets is less than the number of magnetic poles of the plurality of stator magnets; and a magnetic pole piece rotor which includes a plurality of magnetic pole pieces arranged so as to be aligned in the circumferential direction. Each of the magnetic pole pieces has: a first face opposed to the rotor in a radial direction; and a second face opposed to the stator in the radial direction and having a circumferential length longer than a circumferential length of the first face.
    Type: Application
    Filed: February 22, 2022
    Publication date: May 9, 2024
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takeshi Ikemi, Takatoshi Matsushita, Mikito Sasaki, Ryoji Okabe
  • Publication number: 20240118170
    Abstract: A vibration monitoring device includes: a rotation sensor for outputting a rotation signal synchronized with rotation of a rotational shaft; an output device for outputting a filter command value corresponding to a rotation speed of the rotational shaft calculated from the rotation signal; and at least one filter for extracting, in response to input of the rotation signal and the filter command value, a signal in a passband set according to the filter command value from the rotation signal as a vibration signal from which vibration information of the rotational shaft can be obtained.
    Type: Application
    Filed: February 15, 2022
    Publication date: April 11, 2024
    Applicant: Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd.
    Inventors: Tadashi Yoshida, Hidetaka Nishimura, Akifumi Tanaka, Shinji Ogawa, Isao Tomita, Tohru Suita, Ryoji Sasaki
  • Publication number: 20240067846
    Abstract: Provided are a photopolymerizable composition including at least one compound selected from a compound represented by Formula (1) or a compound represented by Formula (2), a polymerizable compound, and a photopolymerization initiator, and a cured substance and an optical member which are formed of the photopolymerizable composition.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 29, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Daisuke SASAKI, Yusuke SAKAI, Ryoji ORITA, Atsushi AZUMA
  • Patent number: 11525753
    Abstract: A contact vibration detection device 100 for detecting contact vibration due to contact between a rotational shaft 12 and a stationary part 13 includes: a rotation waveform determination unit 101 configured to determine a rotation waveform of the rotational shaft 12 based on displacement of the rotational shaft 12 during rotation; a parameter change detection unit 102 configured to detect a change in a parameter of at least one of an effective value of the rotation waveform or a phase angle of the rotation waveform; and a contact vibration determination unit 103 configured to determine whether the contact vibration occurs based on presence or absence of the change in the parameter.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: December 13, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD
    Inventors: Tadashi Yoshida, Ryoji Sasaki, Hidetaka Nishimura, Takeshi Tsuji
  • Publication number: 20210046006
    Abstract: Provided is an emulsion composition that is capable of enhancing systemic absorption for various carotenoids, well compatible with soft capsules, and capable of being formulated into a soft capsule formulation, and that homogeneously disperses raw materials including carotenoids and emulsifiers in the soft capsule formulation. An emulsion composition containing a carotenoid, and two or more specific emulsifiers selected from the group consisting of tetraglycerin monooleate, decaglycerin monolaurate, sucrose stearate, and sucrose laurate.
    Type: Application
    Filed: March 9, 2019
    Publication date: February 18, 2021
    Applicant: AstaReal Co., Ltd.
    Inventors: Kazuna Shitaka, Ryoji Sasaki, Rina Sakaguchi, Kumi Tominaga
  • Publication number: 20200056956
    Abstract: A contact vibration detection device 100 for detecting contact vibration due to contact between a rotational shaft 12 and a stationary part 13 includes: a rotation waveform determination unit 101 configured to determine a rotation waveform of the rotational shaft 12 based on displacement of the rotational shaft 12 during rotation; a parameter change detection unit 102 configured to detect a change in a parameter of at least one of an effective value of the rotation waveform or a phase angle of the rotation waveform; and a contact vibration determination unit 103 configured to determine whether the contact vibration occurs based on presence or absence of the change in the parameter.
    Type: Application
    Filed: January 17, 2019
    Publication date: February 20, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tadashi Yoshida, Ryoji Sasaki, Hidetaka Nishimura, Takeshi Tsuji
  • Patent number: 10316692
    Abstract: A method of suppressing shaft vibration of a turbocharger capable of being driven by a motor includes: a specific-vibration-state determination step of determining whether a rotor shaft of the turbocharger is in a specific vibration state in which a magnitude of shaft vibration of the rotor shaft is, or is likely to be, greater than a predetermined magnitude; an excited state determination step of determining whether the motor is in an excited state in which an exciting voltage is applied to the motor; and a vibration suppression execution step of applying the exciting voltage to the motor if it is determined that the rotor shaft is in the specific vibration state in the specific-vibration-state determination step and it is determined that the motor is not in the excited state in the excited state determination step.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 11, 2019
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tadashi Yoshida, Musashi Sakamoto, Ryoji Sasaki, Yoshihisa Ono, Hidetaka Nishimura, Takeshi Tsuji
  • Publication number: 20180171823
    Abstract: A method of suppressing shaft vibration of a turbocharger capable of being driven by a motor includes: a specific-vibration-state determination step of determining whether a rotor shaft of the turbocharger is in a specific vibration state in which a magnitude of shaft vibration of the rotor shaft is, or is likely to be, greater than a predetermined magnitude; an excited state determination step of determining whether the motor is in an excited state in which an exciting voltage is applied to the motor; and a vibration suppression execution step of applying the exciting voltage to the motor if it is determined that the rotor shaft is in the specific vibration state in the specific-vibration-state determination step and it is determined that the motor is not in the excited state in the excited state determination step.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 21, 2018
    Inventors: Tadashi Yoshida, Musashi Sakamoto, Ryoji Sasaki, Yoshihisa Ono, Hidetaka Nishimura, Takeshi Tsuji