Patents by Inventor Masashi Kutsuna

Masashi Kutsuna 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: 20220123663
    Abstract: A smoothing circuit 2 for an inverter includes a parallel flat plate 21, a plurality of capacitors 22 arranged in a matrix and mounted on the parallel flat plate 21, and a thermal conductive sheet 23 interposed between the parallel flat plate 21 and a housing 4 in an area overlapping a mounting area 21c of the plurality of capacitors 22 when viewed along a normal direction of the parallel flat plate 21. The plurality of capacitors 22 are arranged in such a manner that adjacent terminals 221 of adjacent capacitors 22 have a same polarity in a row direction and a column direction.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 21, 2022
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventor: Masashi Kutsuna
  • Publication number: 20190326796
    Abstract: A shaft includes a main refrigerant passage capable of supplying a refrigerant in one direction on an axial center part and a test piece side sub-refrigerant passage having a starting end communicating with the vicinity of a downstream end in a refrigerant supply direction of the main refrigerant passage. The downstream end in the refrigerant supply direction of the main refrigerant passage is set at the position before an end of the shaft at the side to which a test piece is connected and a predetermined position on the downstream side in the refrigerant supply direction relative to a test piece side bearing. An ending end (discharge port) of the test piece side sub-refrigerant passage is set on the upstream side (counter test piece side) in the refrigerant supply direction relative to the test piece side bearing.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroki Wakabayashi, Masashi Kutsuna, Yutaka Wakita, Tetsuhiro Tomita
  • Patent number: 7969032
    Abstract: An apparatus comprising: a first input that receives a first rotational speed information of a windmill mechanically generated by a mechanical rotation detection unit; a second input that receives a second rotational speed information of the windmill based on an alternating current output of a generator attached to the windmill; and a controller configured to compare the first and second rotational speed information, to determine whether a difference between the first and second rotational speed information is greater than a predetermined value and to execute a predetermined anomaly processing in response to the difference being greater than the predetermined value.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: June 28, 2011
    Assignee: Sinfonia Technology Co., Ltd.
    Inventors: Tsutomu Shinya, Sachiko Shinya, legal representative, Masashi Kutsuna, Takeo Ito, Masami Morita, Hiroki Kataoka, Hiroaki Nishiono
  • Publication number: 20110042951
    Abstract: An apparatus comprising: a first input that receives a first rotational speed information of a windmill mechanically generated by a mechanical rotation detection unit; a second input that receives a second rotational speed information of the windmill based on an alternating current output of a generator attached to the windmill; and a controller configured to compare the first and second rotational speed information, to determine whether a difference between the first and second rotational speed information is greater than a predetermined value and to execute a predetermined anomaly processing in response to the difference being greater than the predetermined value.
    Type: Application
    Filed: September 17, 2010
    Publication date: February 24, 2011
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Tsutomu SHINYA, Sachiko Shinya, Masashi Kutsuna, Takeo Ito, Masami Morita, Hiroki Kataoka, Hiroaki Nishiono