Patents by Inventor Toshio Kagawa

Toshio Kagawa 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).

  • Patent number: 11183810
    Abstract: In a light source module A, a lens shapes emitted light 1a of a semiconductor laser. A plate on which the lens is disposed has a through hole through which the emitted light of the semiconductor laser passes and an adjustment surface that is used for adjusting the position of the lens with respect to the through hole in a direction perpendicular to the optical axis L of the semiconductor laser. An end surface 5b of the lens that is opposite to an optical light-emitting surface of the lens is fixed to the adjustment surface with an adhesive AD. A stepped portion that is recessed in the direction of the optical axis L is formed in a bonding portion in which the end surface of the lens and the adjustment surface are bonded together.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Toshio Kagawa, Noriaki Fujii
  • Publication number: 20200194967
    Abstract: In a light source module A, a lens shapes emitted light 1a of a semiconductor laser. A plate on which the lens is disposed has a through hole through which the emitted light of the semiconductor laser passes and an adjustment surface that is used for adjusting the position of the lens with respect to the through hole in a direction perpendicular to the optical axis L of the semiconductor laser. An end surface 5b of the lens that is opposite to an optical light-emitting surface of the lens is fixed to the adjustment surface with an adhesive AD. A stepped portion that is recessed in the direction of the optical axis L is formed in a bonding portion in which the end surface of the lens and the adjustment surface are bonded together.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Inventors: TOSHIO KAGAWA, NORIAKI FUJII
  • Publication number: 20200185877
    Abstract: In an optical module (first module (1)), a plurality of semiconductor laser elements (a first semiconductor laser element (21) through a third semiconductor laser element (23)) that output light of wavelengths which are different from each other from light emitting points are mounted on a base member (10). The base member (10) has a reference surface (11) serving as a reference in a height direction (Z) and a mounting surface (a first mounting surface (12a) and a second mounting surface (12b)) on which the semiconductor laser elements are mounted. At least some of the plurality of semiconductor laser elements are different from each other in a height (a first light emission height (TL1) through a third light emission height (TL3)) from a surface in contact with the mounting surface to the light emitting points, and are substantially equal in a height (reference height (HL)) from the reference surface to the light emitting points.
    Type: Application
    Filed: January 31, 2017
    Publication date: June 11, 2020
    Inventors: YOSHINOBU KAWAGUCHI, SHINJI OSAKI, TAKATOSHI MORITA, SHOGO YANASE, TOSHIO KAGAWA, TERUYUKI OOMATSU, KAZUAKI KANEKO, SHIGETOSHI ITO
  • Publication number: 20200182434
    Abstract: Provided is a light source module that includes: a plurality of light sources (2); a plurality of optical components (a plurality of lenses (3) and a plurality of dichroic mirrors (4)) by which light from the light sources (2) is transmitted; and a housing (10) that accommodates the light sources 2 and the optical components (3) and (4), in which in a state where the plurality of optical components (3) and (4) are respectively fixed to one supporting member (first supporting member (36)) and one supporting member (second supporting member (41)), the supporting members are fixed to the housing (10).
    Type: Application
    Filed: February 2, 2017
    Publication date: June 11, 2020
    Inventors: TAKATOSHI MORITA, TOSHIO KAGAWA, SHOGO YANASE, SHINJI OSAKI
  • Patent number: 10613425
    Abstract: A housing provided to a light source device has a sliding surface to which a first lens portion is fixed and an inclined support surface to which a second lens portion is fixed. The sliding surface is vertical to a direction of an optical axis of a semiconductor laser and wider than a first fixing surface of the first lens portion that is fixed to the sliding surface. The inclined support surface is parallel to the direction of the optical axis and wider than a second fixing surface of the second lens portion that is fixed to the inclined support surface.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: April 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takatoshi Morita, Noriaki Fujii, Toshio Kagawa
  • Publication number: 20190064643
    Abstract: A housing provided to a light source device has a sliding surface to which a first lens portion is fixed and an inclined support surface to which a second lens portion is fixed. The sliding surface is vertical to a direction of an optical axis of a semiconductor laser and wider than a first fixing surface of the first lens portion that is fixed to the sliding surface. The inclined support surface is parallel to the direction of the optical axis and wider than a second fixing surface of the second lens portion that is fixed to the inclined support surface.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 28, 2019
    Inventors: TAKATOSHI MORITA, NORIAKI FUJII, TOSHIO KAGAWA
  • Publication number: 20180306978
    Abstract: An optical multiplexer (10) that multiplexes a plurality of light beams having different wavelengths includes a first waveguide (101) that receives first-wavelength light, a second waveguide (102) that receives second-wavelength light having a shorter wavelength than the first-wavelength light, a third waveguide (103) that receives third-wavelength light having a shorter wavelength than the second-wavelength light, a first multiplexer (110) in which the light propagates between the first waveguide (101) and the second waveguide (102), and a second multiplexer (120) in which the light propagates between the first waveguide (101) and the third waveguide (103). The second-wavelength light is propagated to the first waveguide (101) at the first multiplexer (110). The third-wavelength light is propagated to the first waveguide (101) at the second multiplexer (120).
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: TOSHIO KAGAWA, MASATAKA ANDOU, PETER JOHN ROBERTS, VALERIE BERRYMAN-BOUSQUET
  • Patent number: 5687094
    Abstract: A design verification apparatus for verifying the suitability of a design to the objectives of a design for an industrial product is disclosed. New design data specification is input. Old design data closest to the new design data is fetched from a design example database and is revised according to the new design specifications. Specification items and tolerance ranges for the specification items are generated based on the input specifications. Verification items based on the old design data and tolerance ranges for the verification items are fetched from a knowledge database. Verify values for the specification items and for the verification items are calculated. The verify values obtained according to the specification items are compared with the tolerance ranges for the specification items, and the verify values obtained according to the verification items are compared with the tolerance ranges for the verification items.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: November 11, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshio Kagawa, Masaaki Yamane
  • Patent number: 5085166
    Abstract: A laser vapor deposition apparatus includes a vacuum chamber which includes an exhaust port and in which a material to be vaporized and a substrate are enclosed, a laser beam source for irradiating the material to be vaporized with a laser beam so as to deposit from the material a desired compound onto the substrate, and a gas supply source which supplies to the surface of the material, a gas that can prevent changes in property of the material which could be caused by the laser beam irradiation.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: February 4, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiro Oka, Takeshi Morita, Seigo Hiramoto, Toshio Kagawa