Patents by Inventor Fumihiko Masuko

Fumihiko Masuko 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).

  • Straight tube LED lamp, lamp socket set, and lighting fixture
    Patent number: 9706608
    Abstract: A straight tube LED lamp includes: a straight tube in which a plurality of light emitting diodes is housed; a first cap for forming a power feeding connection to the plurality of light emitting diodes, provided on one axial direction end side of the straight tube; and a second cap for grounding, provided on another axial direction end side of the straight tube. A first terminal for forming an electrical connection to a power feeding terminal of a first lamp socket is provided in the first cap. A second terminal for forming an electrical connection to a grounding terminal of a second lamp socket is provided in the second cap.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: July 11, 2017
    Assignees: PANASONIC CORPORATION, TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Satoshi Fukano, Nobumichi Nishihama, Tadashi Yamanaka, Fumihiko Masuko, Takeshi Saito, Hiroki Nakagawa, Masanao Hieda, Kenichi Ito, Naoki Sugishita, Keisuke Ono, Keiichi Shimizu, Shinichi Kumashiro, Takeshi Osada
  • STRAIGHT TUBE LED LAMP, LAMP SOCKET SET, AND LIGHTING FIXTURE
    Publication number: 20130119896
    Abstract: A straight tube LED lamp includes: a straight tube in which a plurality of light emitting diodes is housed; a first cap for forming a power feeding connection to the plurality of light emitting diodes, provided on one axial direction end side of the straight tube; and a second cap for grounding, provided on another axial direction end side of the straight tube. A first terminal for forming an electrical connection to a power feeding terminal of a first lamp socket is provided in the first cap. A second terminal for forming an electrical connection to a grounding terminal of a second lamp socket is provided in the second cap.
    Type: Application
    Filed: June 10, 2011
    Publication date: May 16, 2013
    Applicants: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, PANASONIC CORPORATION
    Inventors: Satoshi Fukano, Nobumichi Nishihama, Tadashi Yamanaka, Fumihiko Masuko, Takeshi Saito, Hiroki Nakagawa, Masanao Hieda, Kenichi Ito, Naoki Sugishita, Keisuke Ono, Keiichi Shimizu, Shinichi Kumashiro, Takeshi Osada
  • LED LAMP SYSTEM
    Publication number: 20110316445
    Abstract: An LED lamp system which suppresses flickering of an LED element is provided. The LED lamp system includes straight-tube type LED lamps each having LED elements and a dedicated power source for lighting the LED elements. The dedicated power source full-wave rectifies and smoothes a commercial AC power source, outputs constant current having a ripple factor of 1.3 or smaller and thus lights the LED elements.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 29, 2011
    Applicants: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, PANASONIC CORPORATION, PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Hiroshi TERASAKA, Hajime Osaki, Masahiko Kamata, Naoko Iwai, Takeshi Saito, Hiroki Nakagawa, Fumihiko Masuko, Tadashi Yamanaka