Patents by Inventor Masatomo Matsumoto

Masatomo Matsumoto 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).

  • Vehicular light unit with multiple light sources
    Patent number: 9248776
    Abstract: A vehicular lighting unit includes: a first light source in the form of an LED for providing illumination forward or rearward of a vehicle body, the first light source being mounted on one surface of a base plate in an orientation corresponding to the direction of the illumination; a second light source in the form of an LED for providing illumination laterally outward of the vehicle body, the second light source being mounted on another surface of the base plate; and a reflection section provided near the second light source for reflecting light emitted from the second light source laterally outward of the vehicle body.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 2, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kazuyuki Kawamura, Masatomo Matsumoto, Kazuo Aoyama, Kenichi Suzuki
  • VEHICULAR LIGHTING UNIT
    Publication number: 20150009697
    Abstract: A vehicular lighting unit includes: a first light source in the form of an LED for providing illumination forward or rearward of a vehicle body, the first light source being mounted on one surface of a base plate in an orientation corresponding to the direction of the illumination; a second light source in the form of an LED for providing illumination laterally outward of the vehicle body, the second light source being mounted on another surface of the base plate; and a reflection section provided near the second light source for reflecting light emitted from the second light source laterally outward of the vehicle body
    Type: Application
    Filed: June 26, 2014
    Publication date: January 8, 2015
    Inventors: Kazuyuki KAWAMURA, Masatomo MATSUMOTO, Kazuo AOYAMA, Kenichi SUZUKI
  • Light emitting circuit and lighting device
    Patent number: 6897614
    Abstract: A light emitting circuit includes: a first circuit H1 in which is provided a main light source 5, 6; and a second circuit H2 connected in parallel with the first circuit H1 and in which is provided an auxiliary light source 1, 2 and 3; wherein a drain (D) and a source (S) of an field effect transistor 4 are connected in the second circuit H2, and a gate (G) of the field effect transistor 4 is connected to the first circuit H1.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: May 24, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masatomo Matsumoto, Masaru Ishizaki, Isamu Yoshioka
  • Light emitting circuit and lighting device
    Publication number: 20030179583
    Abstract: A light emitting circuit includes: a first circuit H1 in which is provided a main light source 5, 6; and a second circuit H2 connected in parallel with the first circuit H1 and in which is provided an auxiliary light source 1, 2 and 3; wherein a drain (D) and a source (S) of an field effect transistor 4 are connected in the second circuit H2, and a gate (G) of the field effect transistor 4 is connected to the first circuit H1.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 25, 2003
    Inventors: Masatomo Matsumoto, Masaru Ishizaki, Isamu Yoshioka