Patents by Inventor Toshio Masujima

Toshio Masujima 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).

  • Antenna apparatus and antenna system
    Patent number: 5592185
    Abstract: An antenna apparatus comprises a dielectric substrate, an earth conductor mounted on one surface of the substrate and forming a microstrip transmission line, an upper conductor mounted on the other surface of the substrate and forming a microstrip transmission line, an antenna element formed integrally with the microstrip transmission lines, and a delayed wave opening situated in the earth conductor in confronting relationship with the upper conductor.
    Type: Grant
    Filed: September 25, 1995
    Date of Patent: January 7, 1997
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yasuhiro Itabashi, Kazuhito Miyashita, Yoshiyuki Chatani, Takayoshi Furuno, Hiroaki Miyashita, Toshio Masujima, Makoto Matsunaga, Takashi Katagi, Hiroyuki Aoki, Tetsuo Haruyama
  • Array antenna with radiation elements and amplifiers mounted on same insulating film
    Patent number: 5218368
    Abstract: A radiowave receiving array antenna includes a lower grounding conductor, an upper grounding conductor, and supporting plates for supporting a feeder circuit board therebetween. Radiation elements and low noise amplifiers are mounted on the same plane of an insulating film of the feeder circuit board. The number of radiation elements is reduced, but the quality of the signal is not deteriorated.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: June 8, 1993
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takayoshi Huruno, Nobutake Orime, Morio Higa, Yoshiyuki Chatani, Yasuhiko Nishioka, Masahiko Funada, Akira Harada, Toshio Masujima
  • Offset antenna
    Patent number: 4978967
    Abstract: An offset antenna having a reflector of a paraboloid of revolution and a side plate surrounding the periphery of the reflector, wherein a primary radiator is disposed within the cylindrical side plate.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: December 18, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Toshio Masujima