Patents by Inventor Takashi ASAMIZU

Takashi ASAMIZU 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).

  • Crystal unit
    Patent number: 11218131
    Abstract: A single-chamber-type temperature-sensor-provided crystal unit includes: a single chamber; and a quartz-crystal vibrating piece and a temperature sensor, provided in the single chamber. The quartz-crystal vibrating piece has a square planar shape. The quartz-crystal vibrating piece is secured in the single chamber at two securing portions via conductive members. The two securing portions are in proximities of both ends of a first side of the quartz-crystal vibrating piece. The temperature sensor has a rectangular parallelepiped shape. The temperature sensor is disposed such that a longitudinal surface of the temperature sensor is parallel to a line segment Y and the temperature sensor is close to a side of the two securing portions within the single chamber, when a line segment connecting the two securing portions is defined as the line segment Y.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: January 4, 2022
    Assignee: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Takumi Ariji, Akihiro Sakanashi, Takashi Asamizu, Yoshihiro Takaki
  • CRYSTAL UNIT
    Publication number: 20190199318
    Abstract: A single-chamber-type temperature-sensor-provided crystal unit includes: a single chamber; and a quartz-crystal vibrating piece and a temperature sensor, provided in the single chamber. The quartz-crystal vibrating piece has a square planar shape. The quartz-crystal vibrating piece is secured in the single chamber at two securing portions via conductive members. The two securing portions are in proximities of both ends of a first side of the quartz-crystal vibrating piece. The temperature sensor has a rectangular parallelepiped shape. The temperature sensor is disposed such that a longitudinal surface of the temperature sensor is parallel to a line segment Y and the temperature sensor is close to a side of the two securing portions within the single chamber, when a line segment connecting the two securing portions is defined as the line segment Y.
    Type: Application
    Filed: December 25, 2018
    Publication date: June 27, 2019
    Applicant: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Takumi ARIJI, Akihiro SAKANASHI, Takashi ASAMIZU, Yoshihiro TAKAKI