Patents by Inventor Shinji Yamagata

Shinji Yamagata 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: 10502379
    Abstract: A vehicle lighting fixture can suppress the generation of uneven luminance regions. The vehicle lighting fixture can include two light sources arranged side by side on right and left sides, two reflecting portions configured to reflect light from the two light sources, respectively, and a shading portion configured to shield part of light reflected by the two reflecting portions. The shading portion includes left and right side portions inclined from its inside portion to its outside portion downward.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: December 10, 2019
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Katsuhiko Kono, Shinji Yamagata
  • Publication number: 20160281953
    Abstract: A vehicle lighting fixture can suppress the generation of uneven luminance regions. The vehicle lighting fixture can include two light sources arranged side by side on right and left sides, two reflecting portions configured to reflect light from the two light sources, respectively, and a shading portion configured to shield part of light reflected by the two reflecting portions. The shading portion includes left and right side portions inclined from its inside portion to its outside portion downward.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 29, 2016
    Inventors: Katsuhiko Kono, Shinji Yamagata
  • Patent number: 9347636
    Abstract: A vehicle lighting unit forming low-beam and high-beam light distribution patterns can include: a light source having a substrate, and a first light-emitting section and a second light-emitting section arranged in two rows on a surface of the substrate; a first optical system configured to control light emitted from the first light-emitting section to form at least part of the low-beam light distribution pattern; a second optical system configured to control light emitted from the second light-emitting section to form at least part of the high-beam light distribution pattern; a light-shielding section disposed between the first light-emitting section and the second light-emitting section, the light-shielding section configured to shield part of the light from the first light-emitting section so as not to enter the second optical system; and a control unit configured to control to form the low-beam light distribution pattern or the high-beam light distribution pattern.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: May 24, 2016
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Toshiyasu Soda, Hisashi Furuya, Shinji Yamagata, Toshihiro Oikawa
  • Patent number: 8934290
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 13, 2015
    Assignees: Canon Anelva Corporation, National Institute of Advanced Industrial Science Nad Technology
    Inventors: David D. Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Publication number: 20140286033
    Abstract: A vehicle lighting unit forming low-beam and high-beam light distribution patterns can include: a light source having a substrate, and a first light-emitting section and a second light-emitting section arranged in two rows on a surface of the substrate; a first optical system configured to control light emitted from the first light-emitting section to form at least part of the low-beam light distribution pattern; a second optical system configured to control light emitted from the second light-emitting section to form at least part of the high-beam light distribution pattern; a light-shielding section disposed between the first light-emitting section and the second light-emitting section, the light-shielding section configured to shield part of the light from the first light-emitting section so as not to enter the second optical system; and a control unit configured to control to form the low-beam light distribution pattern or the high-beam light distribution pattern.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicant: Stanley Electric Co., Ltd.
    Inventors: Toshiyasu Soda, Hisashi Furuya, Shinji Yamagata, Toshihiro Oikawa
  • Patent number: 8746941
    Abstract: A vehicle headlamp includes a light source, a reflector, a projection lens, and a shade. The shade has an upper end edge portion and a raised portion. The upper end edge portion has a projection. The reflector reflects light output from the light source in the front direction. The projection lens in front of the light source projects the light. The shade between the reflector and the projection shields a portion of the light. The upper end edge portion contributes to form the upper end line of the low beam as a cut-off line. The projection contributes to form a recession of the cut-off line recessed below a specific point in the low beam. The raised portion reflects the light having passed above the projection to illuminate an inner region of the recession.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: June 10, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Shinji Yamagata, Takashi Akutagawa
  • Patent number: 8651718
    Abstract: A vehicle light fitting unit includes two headlights which irradiate a low beam. The two headlights can each include a light emitting element, an elliptical series reflecting surface provided in a state where a first focal position is positioned near the light emitting element and a second focal position is positioned on an optical axis of the headlight, and a projecting lens provided so that a focal position on a rear side of the light irradiating direction is near the second focal position. Only a first headlight among the two headlights includes a light shielding member. The elliptical series reflecting surface of a second headlight is positioned so that the first focal position is positioned to the front of the light irradiating direction than the light emitting element.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: February 18, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Shinji Yamagata
  • Publication number: 20140024140
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, CANON ANELVA CORPORATION
    Inventors: David D. Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Patent number: 8394649
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: March 12, 2013
    Assignees: Canaon Anelva Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: David D. Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Publication number: 20130051054
    Abstract: A vehicle headlamp includes a light source, a reflector, a projection lens, and a shade. The shade has an upper end edge portion and a raised portion. The upper end edge portion has a projection. The reflector reflects light output from the light source in the front direction. The projection lens in front of the light source projects the light. The shade between the reflector and the projection shields a portion of the light. The upper end edge portion contributes to form the upper end line of the low beam as a cut-off line. The projection contributes to form a recession of the cut-off line recessed below a specific point in the low beam. The raised portion reflects the light having passed above the projection to illuminate an inner region of the recession.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Inventors: Shinji YAMAGATA, Takashi Akutagawa
  • Publication number: 20120243247
    Abstract: A vehicle light fitting unit includes two headlights which irradiate a low beam. The two headlights can each include a light emitting element, an elliptical series reflecting surface provided in a state where a first focal position is positioned near the light emitting element and a second focal position is positioned on an optical axis of the headlight, and a projecting lens provided so that a focal position on a rear side of the light irradiating direction is near the second focal position. Only a first headlight among the two headlights includes a light shielding member. The elliptical series reflecting surface of a second headlight is positioned so that the first focal position is positioned to the front of the light irradiating direction than the light emitting element.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 27, 2012
    Inventor: Shinji YAMAGATA
  • Patent number: 8092059
    Abstract: A vehicular lighting fixture can include a shade wherein an end edge of an upper surface of the shade is positioned at or in a vicinity of a focus of a projection lens. A first reflection surface can be provided to condense light from a light source in a vicinity of the end edge and to form a basic light distribution pattern by the projection lens. A second reflection surface which can comprise one planar reflection surface and can reflect light from the first reflection surface to form a first additional light distribution pattern. A third reflection surface can be provided on a higher surface of a step section of the upper surface, and can reflect light from the first reflection surface to form a second additional light distribution pattern. A fourth reflection surface can connect the second and third reflection surface, and can reflect the light from the first reflection surface in a direction not incident on the projection lens.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: January 10, 2012
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Shinji Yamagata
  • Publication number: 20110143460
    Abstract: An embodiment of the invention provides a method of manufacturing a magnetoresistance element with an MR ratio higher than that of the related art. A method of manufacturing a magnetoresistance element includes a step of forming a magnetization fixed layer, a magnetization free layer, and a tunnel barrier layer provided between the magnetization fixed layer and the magnetization free layer on a substrate. In the method, the tunnel barrier layer is formed by arranging a target that has a diameter smaller than that of the substrate, contains a magnesium oxide sintered body, and has a relative density 90% or more so as to be inclined with respect to a surface to be deposited of the substrate, and forming a magnesium oxide layer using a sputtering method while rotating the substrate.
    Type: Application
    Filed: August 31, 2009
    Publication date: June 16, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventors: Koji Tsunekawa, Yoshinori Nagamine, Shinji Yamagata
  • Publication number: 20110094875
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: January 3, 2011
    Publication date: April 28, 2011
    Applicants: CANON ANELVA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: David D. Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Publication number: 20100309678
    Abstract: A vehicular lighting fixture can include a shade wherein an end edge of an upper surface of the shade is positioned at or in a vicinity of a focus of a projection lens. A first reflection surface can be provided to condense light from a light source in a vicinity of the end edge and to form a basic light distribution pattern by the projection lens. A second reflection surface which can comprise one planar reflection surface and can reflect light from the first reflection surface to form a first additional light distribution pattern. A third reflection surface can be provided on a higher surface of a step section of the upper surface, and can reflect light from the first reflection surface to form a second additional light distribution pattern. A fourth reflection surface can connect the second and third reflection surface, and can reflect the light from the first reflection surface in a direction not incident on the projection lens.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 9, 2010
    Inventor: Shinji Yamagata
  • Publication number: 20100309679
    Abstract: A projector headlight for a low beam can include a first and second lighting unit. Each of the first and second lighting units can include an LED light source, an ellipsoidal reflector, a projector lens and a shade. Light emitted from the LED light source can form a light distribution pattern from the projector lens via the ellipsoidal reflector by shielding an upwards portion of the light with the shade. The shade of the second lighting unit may be configured so as not to project light on a specific point under a cut-off line on an oncoming lane using a convex portion thereon. Therefore, the first lighting unit can project light with a maximum light intensity at the specific point so as to overlap the light distribution pattern formed by the second lighting unit. Thus, the projector headlight can perform a favorable light distribution pattern that can conform to a light distribution standard for headlights.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 9, 2010
    Inventors: Shinji Yamagata, Takashi Akutagawa
  • Publication number: 20080180862
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 31, 2008
    Applicants: ANELVA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: David D. DJAYAPRAWIRA, Koji TSUNEKAWA, Motonobu NAGAI, Hiroki MAEHARA, Shinji YAMAGATA, Naoki WATANABE, Shinji YUASA
  • Publication number: 20080124454
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: January 3, 2008
    Publication date: May 29, 2008
    Applicants: ANELVA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: David D. Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Publication number: 20080055793
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: October 23, 2007
    Publication date: March 6, 2008
    Applicants: ANELVA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: David Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa
  • Publication number: 20060056115
    Abstract: A magnetoresistance effect device including a multilayer structure having a pair of ferromagnetic layers and a barrier layer positioned between them, wherein at least one ferromagnetic layer has at least the part contacting the barrier layer made amorphous and the barrier layer is an MgO layer having a highly oriented texture structure.
    Type: Application
    Filed: September 7, 2005
    Publication date: March 16, 2006
    Applicants: ANELVA Corporation, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: David Djayaprawira, Koji Tsunekawa, Motonobu Nagai, Hiroki Maehara, Shinji Yamagata, Naoki Watanabe, Shinji Yuasa