Patents by Inventor Masayuki Oohira

Masayuki Oohira 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).

  • Protective device
    Patent number: 9960000
    Abstract: The present invention provides a protection device which provides a greater degree of freedom in a disposition of the bimetal switch as well as be able to more accurately control an actuation of the bimetal member of the bimetal switch. The protection device characterized in that the device comprises a bimetal switch wherein a first PTC member and a bimetal member are connected electrically in parallel with each other; and a second PTC member; and the bimetal member is disposed to be actuated by tripping of the second PTC member.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: May 1, 2018
    Assignee: Littelfuse Japan G.K.
    Inventors: Masayuki Oohira, Katsuaki Suzuki, Arata Tanaka
  • Protective device
    Patent number: 9923362
    Abstract: The present invention provides a protection device which includes a PTC component and a first non-resettable contact component which is connected electrically in parallel to the PTC component. A second non-resettable contact component is connected electrically in series to the PTC component, and when the PTC component is tripped by a current which is diverted by opening the contact of the first non-resettable contact component, the contact of the second non-resettable contact component opens due to heat which is generated by the PTC component.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: March 20, 2018
    Assignee: Littelfuse, Inc.
    Inventors: Takashi Hasunuma, Arata Tanaka, Katsuaki Suzuki, Masayuki Oohira
  • PROTECTIVE DEVICE
    Publication number: 20150229118
    Abstract: The present invention provide a protection device which comprises a PTC component and a first non-resettable contact component which is connected electrically in parallel to the PTC component, characterized in that a second non-resettable contact component is connected electrically in series to the PTC component, and when the PTC component is tripped by a current which is diverted by opening the contact of the first non-resettable contact component, the contact of the second non-resettable contact component opens due to heat which is generated by the PTC component.
    Type: Application
    Filed: December 17, 2012
    Publication date: August 13, 2015
    Applicant: Tyco Electronics Japan G.K.
    Inventors: Takashi Hasunuma, Arata Tanaka, Katsuaki Suzuki, Masayuki Oohira
  • Protective Device
    Publication number: 20150022311
    Abstract: The present invention provides a protection device which provides a greater degree of freedom in a disposition of the bimetal switch as well as be able to more accurately control an actuation of the bimetal member of the bimetal switch. The protection device characterized in that the device comprises a bimetal switch wherein a first PTC member and a bimetal member are connected electrically in parallel with each other; and a second PTC member; and the bimetal member is disposed to be actuated by tripping of the second PTC member.
    Type: Application
    Filed: December 15, 2011
    Publication date: January 22, 2015
    Applicant: Tyco Electronics Japan G.K.
    Inventors: Masayuki Oohira, Katsuaki Suzuki, Arata Tanaka