Patents by Inventor Masayuki Katoogi

Masayuki Katoogi 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).

  • Fluorescent lighting device
    Patent number: 4350929
    Abstract: A fluorescent lighting device which includes a preheating type fluorescent discharge tube and as the ballast thereof an incandescent bulb. The fluorescent lighting device is ignited by the use of a pulse transformer and a neon tube. A semiconductor element may be used in place of the neon tube.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: September 21, 1982
    Assignee: Moriyama Sangyo Kabushiki Kaisha
    Inventor: Masayuki Katoogi
  • Fluorescent light fixture
    Patent number: 4225905
    Abstract: A fluorescent light fixture having a cover assembly and base for insertion into an incandescent lamp socket. The cover assembly consists of two cover members, one of which is detachable for replacement of a fluorescent lamp supported within the cover assembly or for exchange of one of the cover members.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: September 30, 1980
    Assignee: Moriyama Sangyo Kabushiki Kaisha
    Inventors: Hideo Moriyama, Masayuki Katoogi
  • Fluorescent lamp assembly
    Patent number: D283253
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: April 1, 1986
    Assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Moriyama Sangyo Kabushiki Kaisha
    Inventors: Taketo Kamei, Hidenori Ito, Hiroyuki Ebara, Hideo Moriyama, Masayuki Katoogi