Patents by Inventor Misuzu Sakai

Misuzu Sakai 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: 10573475
    Abstract: According to an embodiment, a gas-blast circuit breaker comprises a heat removal unit in a flow path of arc extinguishing gas. The heat removal unit each includes: plate-shaped heat removal members contacting the arc extinguishing gas flowing in the flow path; and a holding portion holding the plate-shaped heat removal members to stack the heat removal members at intervals in a thickness direction. Each of the heat removal members includes: an upstream side end portion; a downstream side end portion; and a thickest portion with a largest thickness which is provided between the upstream side end portion and the downstream side end portion. Thickness of the heat removal member continuously changes between the upstream side end portion and the downstream side end portion via the thickest portion.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 25, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Misuzu Sakai, Hiroki Tashiro, Takayuki Masunaga, Katsumi Hisano, Takahiro Terada, Toshiyuki Uchii, Takanori Iijima, Tomoyuki Yoshino
  • Patent number: 10498191
    Abstract: According to an embodiment, a bush includes a first member, a second member, and a third member. The first member is provided with a first hole having a first axis, and has a first outer surface having a second axis different from the first axis. The second member is provided with a second hole in which the first member is housed, and has a second inner surface that is in contact with the first outer surface and a second outer surface having a third axis different from the second axis. The third member is provided with a third hole in which the second member is housed and has a third inner surface that is in contact with the second outer surface.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 3, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Masunaga, Shanying Pan, Misuzu Sakai, Toshihiko Kida, Kaori Deura, Kosuke Adachi, Makoto Ootaki
  • Publication number: 20190295791
    Abstract: According to an embodiment, a gas-blast circuit breaker comprises a heat removal unit in a flow path of arc extinguishing gas. The heat removal unit each includes: plate-shaped heat removal members contacting the arc extinguishing gas flowing in the flow path; and a holding portion holding the plate-shaped heat removal members to stack the heat removal members at intervals in a thickness direction. Each of the heat removal members includes: an upstream side end portion; a downstream side end portion; and a thickest portion with a largest thickness which is provided between the upstream side end portion and the downstream side end portion. Thickness of the heat removal member continuously changes between the upstream side end portion and the downstream side end portion via the thickest portion.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 26, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Misuzu SAKAI, Hiroki TASHIRO, Takayuki MASUNAGA, Katsumi HISANO, Takahiro TERADA, Toshiyuki UCHII, Takanori IIJIMA, Tomoyuki YOSHINO
  • Publication number: 20190085857
    Abstract: According to one embodiment, a mounting structure includes a first member, a second member and a support. The first member includes a first outer surface extending along and around a first axis. The second member has a first surface to which a first hole opens, the first hole extending along the first axis to house the first member. The support is rotatable integrally with the first member around the first axis and has a second surface facing the first surface. One of the first surface and the second surface is provided with first dents. The other of the first surface and the second surface is provided with at least one first bump that fits into at least one of the first dents to limit a relative rotation between the second member and the support around the first axis.
    Type: Application
    Filed: August 17, 2018
    Publication date: March 21, 2019
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shanying Pan, Takayuki Masunaga, Misuzu Sakai
  • Publication number: 20190085860
    Abstract: According to one embodiment, a mounting structure includes: a first member including a first outer surface provided with first dents arranged around a second axis at an interval of a first angular distance; a second member including a second inner surface provided with second dents arranged around the second axis at an interval of a second angular distance, and a second outer surface provided with third dents arranged around a third axis at an interval of a third angular distance; a third member includes a third inner surface provided with fourth dents arranged around the third axis at an interval of a fourth angular distance; a first limiting member housed in one of the first dents and one of the second dents opposing each other; and a second limiting member housed in one of the third dents and one of the fourth dents opposing each other.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 21, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Misuzu SAKAI, Takayuki MASUNAGA, Shanying PAN
  • Publication number: 20180274801
    Abstract: According to an embodiment, a high-rigidity plate includes: a first protrusion including a first top wall configured to support a vibration member and a first circumferential wall connected with an outer circumferential edge of the first top wall, the first protrusion being configured to protrude inside a housing or outside the housing; an intermediate part disposed at a position surrounding the first top wail when viewed along a first direction and connected with the first circumferential wall via a first bend; and an annular second protrusion including a second top wall disposed at a position surrounding the first top wall when viewed along the first direction and a second circumferential wall connected with the intermediate part via a second bend and connected with an inner circumferential edge of the second top wall, the second protrusion being configured to protrude inside the housing or outside the housing.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 27, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Misuzu Sakai, Shanying Pan, Takayuki Masunaga, Kaori Deura, Toshihiko Kida, Kosuke Adachi, Makoto Ootaki
  • Publication number: 20180262083
    Abstract: According to an embodiment, a bush includes a first member, a second member, and a third member. The first member is provided with a first hole having a first axis, and has a first outer surface having a second axis different from the first axis. The second member is provided with a second hole in which the first member is housed, and has a second inner surface that is in contact with the first outer surface and a second outer surface having a third axis different from the second axis. The third member is provided with a third hole in which the second member is housed and has a third inner surface that is in contact with the second outer surface.
    Type: Application
    Filed: February 26, 2018
    Publication date: September 13, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Masunaga, Shanying Pan, Misuzu Sakai, Toshihiko Kida, Kaori Deura, Kosuke Adachi, Makoto Ootaki