Patents by Inventor Masazumi Takakura

Masazumi Takakura 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).

  • Discharge lamp starter
    Patent number: 4461976
    Abstract: A discharge lamp starting device employing a thermal switch which comprises main and auxiliary bimetal electrodes respectively thermally bendable in the same direction, and an auxiliary heater for heating the auxiliary bimetal electrode in addition to a main heater for the main bimetal electrode. The auxiliary heater is energized to heat the auxiliary electrode upon a starting failure specifically when the discharge lamp is to be lighted again immediately after its extinguishment, whereby the auxiliary electrode is forced to bend toward the main electrode and a re-closing of the thermal switch and eventual lamp starting can be accelerated.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 24, 1984
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Minoru Yamamoto, Koichiro Tanigawa, Kazunori Kubo, Masazumi Takakura
  • Socket for light-emitting diode lamp
    Patent number: D727849
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: April 28, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Satoshi Fukano, Tetsuya Matsumoto, Masazumi Takakura
  • Socket for light-emitting diode lamp
    Patent number: D737773
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: September 1, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Satoshi Fukano, Tetsuya Matsumoto, Masazumi Takakura