Patents by Inventor Takasi Sumiyosi

Takasi Sumiyosi 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).

  • Dielectric filter having dielectric resonators disposed within a casing and secured by an intermediate member
    Patent number: 9647308
    Abstract: Provided is a dielectric filter that can be anchored in a stable manner without causing damage even when there is variation in the size of the parts. With this dielectric filter, one surface of washers has a concave part, which is equipped with an edge part formed at the perimeter of the one surface, a floor surface provided at a lower position than the edge part, and a tapered part formed between the edge part and the floor surface. The washers are arranged on the upper surface of and fastened by means of screws to dielectric bodies with the concave parts facing the dielectric bodies, with sheet metal therebetween.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: May 9, 2017
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Takasi Sumiyosi, Minoru Tachibana, Masayuki Oki
  • Semi-coaxial resonator comprised of columnar shaped resonant elements with square shaped plates, where vertical screw holes are disposed in the square shaped plates
    Patent number: 9595746
    Abstract: Provided is a semi-coaxial resonator that reduces the insertion loss in the pass band and that is made to be compact, lightweight, and low in cost. A resonator is formed by fastening a cylindrical first element with a square and planar second element at an open end (one end) of the first element. A plurality of these resonators are disposed such that the square edges are brought close to each other and the other ends of the first elements are secured to the bottom of a box-shaped case. The open side of the case that accommodates the plurality of resonators is closed by a lid.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: March 14, 2017
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Takasi Sumiyosi, Minoru Tachibana
  • DIELECTRIC FILTER
    Publication number: 20150263402
    Abstract: Provided is a dielectric filter that can be anchored in a stable manner without causing damage even when there is variation in the size of the parts. With this dielectric filter, one surface of washers has a concave part, which is equipped with an edge part formed at the perimeter of the one surface, a floor surface provided at a lower position than the edge part, and a tapered part formed between the edge part and the floor surface. The washers are arranged on the upper surface of and fastened by means of screws to dielectric bodies with the concave parts facing the dielectric bodies, with sheet metal therebetween.
    Type: Application
    Filed: August 12, 2013
    Publication date: September 17, 2015
    Inventors: Takasi Sumiyosi, Minoru Tachibana, Masayuki Oki
  • Semi-Coaxial Resonator
    Publication number: 20150255849
    Abstract: Provided is a semi-coaxial resonator that reduces the insertion loss in the pass band and that is made to be compact, lightweight, and low in cost. A resonator is formed by fastening a cylindrical first element with a square and planar second element at an open end (one end) of the first element. A plurality of these resonators are disposed such that the square edges are brought close to each other and the other ends of the first elements are secured to the bottom of a box-shaped case. The open side of the case that accommodates the plurality of resonators is closed by a lid.
    Type: Application
    Filed: July 18, 2013
    Publication date: September 10, 2015
    Inventors: Takasi Sumiyosi, Minoru Tachibana