Patents by Inventor Tohru Terajima

Tohru Terajima 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).

  • Light-emitting device, light source and method of manufacturing the same
    Patent number: 8545083
    Abstract: A light-emitting device includes a light source including an element mounting substrate, an LED element mounted thereon by flip-chip connection and a sealing portion for sealing the LED element on the element mounting substrate, and a light guide plate including a housing hole for housing the light source. The housing hole extends from one surface side to another surface side of the light guide plate and an area of an inner surface thereof on which light is incident from the light source is parallel to a thickness direction of the light guide plate. The light source is housed in the housing hole so that the element mounting substrate is located on the other surface side of the light guide plate, emits light toward the one surface side of the light guide plate in the housing hole and the inner surface side of the housing hole, and has an optical axis parallel to the thickness direction of the light guide plate.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: October 1, 2013
    Assignees: Sumita Optical Glass, Inc., Toyoda Gosei Co., Ltd.
    Inventors: Tohru Terajima, Yoshinobu Suehiro, Koji Tasumi
  • Light-emitting device, light source and method of manufacturing the same
    Publication number: 20110149594
    Abstract: A light-emitting device includes a light source including an element mounting substrate, an LED element mounted thereon by flip-chip connection and a sealing portion for sealing the LED element on the element mounting substrate, and a light guide plate including a housing hole for housing the light source. The housing hole extends from one surface side to another surface side of the light guide plate and an area of an inner surface thereof on which light is incident from the light source is parallel to a thickness direction of the light guide plate. The light source is housed in the housing hole so that the element mounting substrate is located on the other surface side of the light guide plate, emits light toward the one surface side of the light guide plate in the housing hole and the inner surface side of the housing hole, and has an optical axis parallel to the thickness direction of the light guide plate.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicants: Sumita Optical Glass, Inc., Toyoda Gosei Co., Ltd.
    Inventors: Tohru Terajima, Yoshinobu Suehiro, Koji Tasumi
  • Light emitting device
    Patent number: 7319289
    Abstract: A light emitting device has a light emitting element, and a phosphor layer of phosphor glass to generate fluorescence while being excited by light emitted from the light emitting element. The light emitting element emits ultraviolet light, and the phosphor glass generates visible fluorescence while being excited by the ultraviolet light.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: January 15, 2008
    Assignees: Toyoda Gosei Co., Ltd., Sumita Optical Glass, Inc.
    Inventors: Yoshinobu Suehiro, Mitsuhiro Inoue, Hideaki Kato, Tohru Terajima, Kazuya Aida, Naruhito Sawanobori
  • Light emitting device
    Publication number: 20040207998
    Abstract: A light emitting device has a light emitting element, and a phosphor layer of phosphor glass to generate fluorescence while being excited by light emitted from the light emitting element. The light emitting element emits ultraviolet light, and the phosphor glass generates visible fluorescence while being excited by the ultraviolet light.
    Type: Application
    Filed: March 10, 2004
    Publication date: October 21, 2004
    Applicants: Toyoda Gosei Co., Ltd., Sumita Optical Glass Inc.
    Inventors: Yoshinobu Suehiro, Mitsuhiro Inoue, Hideaki Kato, Tohru Terajima, Kazuya Aida, Naruhito Sawanobori