Patents by Inventor Sigeru Osawa

Sigeru Osawa 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).

  • Lamp device and lighting fixture including LED as light source and metallic cover
    Patent number: 8899795
    Abstract: In a lamp device 12 using a GX53-type cap 31 and also using an LED 56 as a light source, there is regulated an appropriate configuration of a metallic cover 32. A cap 31 and a lighting device 36 are arranged on an upper surface side of the metallic cover 32, and a substrate 33 on which the LED 56 is mounted is arranged on a lower surface side thereof. The metallic cover 32 has an approximately cylindrical shape with a maximum outer diameter D of 80 to 150 mm, a height H of 5 to 25 mm, and 2? (D/2) H/W, that is, an area of the outer peripheral surface per gross input power W to the lamp device 12 being in a range of 200 to 800 mm2/W. The gross input power W is 5 to 20 W.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: December 2, 2014
    Assignees: Toshiba Lighting & Technology Corporation, Kabushiki Kaisha Toshiba
    Inventors: Toshiya Tanaka, Keiichi Shimizu, Takumi Suwa, Makoto Sakai, Kozo Ogawa, Sigeru Osawa, Takeshi Hisayasu, Hitoshi Kawano
  • LAMP DEVICE AND LIGHTING FIXTURE
    Publication number: 20110291594
    Abstract: In a lamp device 12 using a GX53-type cap 31 and also using an LED 56 as a light source, there is regulated an appropriate configuration of a metallic cover 32. A cap 31 and a lighting device 36 are arranged on an upper surface side of the metallic cover 32, and a substrate 33 on which the LED 56 is mounted is arranged on a lower surface side thereof. The metallic cover 32 has an approximately cylindrical shape with a maximum outer diameter D of 80 to 150 mm, a height H of 5 to 25 mm, and 2? (D/2) H/W, that is, an area of the outer peripheral surface per gross input power W to the lamp device 12 being in a range of 200 to 800 mm2/W. The gross input power W is 5 to 20 W.
    Type: Application
    Filed: February 19, 2010
    Publication date: December 1, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
    Inventors: Toshiya Tanaka, Keiichi Shimizu, Takumi Suwa, Makoto Sakai, Kozo Ogawa, Sigeru Osawa, Takeshi Hisayasu, Hitoshi Kawano