Patents by Inventor Takayoshi Fujii

Takayoshi Fujii 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).

  • Publication number: 20150076546
    Abstract: According to one embodiment, a semiconductor light emitting device includes a stacked body, first and second electrodes. The stacked body includes a light emitting layer. The first and second electrodes are provided on the stacked body. The device further includes an insulating layer covering the stacked body, a first conversion electrode electrically connected to the first electrode, a second conversion electrode electrically connected to the second electrode (50), and a light blocking body covering a side surface of the stacked body. The first conversion electrode, the second conversion electrode, and the light blocking body include, in a portion contacting with the insulating layer, a member with a reflectance of 80 percent or more for light emitted from the light emitting layer.
    Type: Application
    Filed: July 29, 2014
    Publication date: March 19, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Susumu OBATA, Takayoshi Fujii, Kazuhito Higuchi, Akihiro Kojima
  • Publication number: 20150076543
    Abstract: According to one embodiment, a light emitting device includes a base, a light emitting element, and a fluorescent body-containing layer. The light emitting element is installed on the base, has an upper surface and a lower surface, and includes a light emitting unit on the upper surface. The fluorescent body-containing layer is provided on the light emitting element and has a lower surface having an area smaller than an area of the light emitting unit and an upper surface having an area larger than an area of the light emitting unit.
    Type: Application
    Filed: March 13, 2014
    Publication date: March 19, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takayoshi FUJII, Haruhiko OKAZAKI, Toshihiro KUROKI, Toshitake KITAGAWA
  • Patent number: 8946750
    Abstract: A semiconductor light emitting device includes a light emitting unit, a first and second conductive pillar, a sealing unit, a translucent layer, and a wavelength conversion layer. The light emitting unit includes a first and second semiconductor layer and a light emitting layer. The first semiconductor layer has a first and second major surface. The first major surface has a first and second portion. The second major surface is opposed the first major surface and has a third and fourth portion. The light emitting layer is provided on the first portion. The second semiconductor layer is provided on the light emitting layer. The first conductive pillar is provided on the second portion. The second conductive pillar is provided on the second semiconductor layer. The translucent layer is provided on the fourth portion. The wavelength conversion layer is provided on the third portion and on the translucent layer.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 3, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhito Higuchi, Hideo Shiozawa, Takayoshi Fujii, Akihiro Kojima, Susumu Obata, Toshiyuki Terada
  • Patent number: 8941124
    Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a p-side electrode, an n-side electrode, and an inorganic film. The semiconductor layer includes a first surface having an unevenness, a second surface opposite to the first surface, and a light emitting layer. The semiconductor layer includes gallium nitride. The inorganic film is provided to conform to the unevenness of the first surface and in contact with the first surface. The inorganic film has main components of silicon and nitrogen. The inorganic film has a refractive index between a refractive index of the gallium nitride and a refractive index of air. An unevenness is formed also in a surface of the inorganic film.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: January 27, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihiro Kojima, Takayoshi Fujii, Yoshiaki Sugizaki
  • Patent number: 8892338
    Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: November 18, 2014
    Assignee: Shinko Electric Co., Ltd.
    Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
  • Patent number: 8818625
    Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: August 26, 2014
    Assignee: Shinko Electric Co., Ltd.
    Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
  • Publication number: 20140212023
    Abstract: In accordance with an embodiment, a pattern inspection method includes applying a light to a substrate including an inspection target pattern in a plurality of optical conditions, detecting a reflected light from the substrate to acquire a pattern image for each of the optical conditions, outputting a gray value difference between the pattern image and a reference image for each of the optical conditions, and specifying a position of the defect in a stacking direction of the stacked film from a relation of the obtained gray value difference between the optical conditions. The pattern is formed by a stacked film, the optical conditions includes at least a first optical condition for detection of a defect on a surface of the stacked film.
    Type: Application
    Filed: September 5, 2013
    Publication date: July 31, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takayoshi FUJII, Kiminori Yoshino, Makoto Kaneko, Yusaku Konno, Yusuke Iida
  • Publication number: 20140091645
    Abstract: A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of flat springs. Permanent magnets are formed at one of the inner core and the outer core, and magnetic pole portions are formed at the other of the inner core and the outer core to face the permanent magnet with predetermined gaps formed therebetween. Spacers are respectively provided between the inner core and the flat springs, abutting portions are respectively configured by abutting facing surfaces of the spacers and the inner core and facing surfaces of the spacers and the flat springs adjacent to the spacers in the axial direction, and a plurality of engagement portions including recesses and protrusions are arranged at the abutting portions.
    Type: Application
    Filed: April 2, 2012
    Publication date: April 3, 2014
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Yasuhiro Sakai, Takashi Onoue
  • Patent number: 8649591
    Abstract: In accordance with an embodiment, a pattern inspection method includes: applying a light generated from a light source to the same region of a substrate in which an inspection target pattern is formed; guiding, imaging and then detecting a reflected light from the substrate, and acquiring a detection signal for each of a plurality of different wavelengths; and adding the detection signals of the different wavelengths in association with an incident position of an imaging surface to generate added image data including information on a wavelength and signal intensity, judging, by the added image data, whether the inspection target pattern has any defect, and when judging that the inspection target pattern has a defect, detecting the position of the defect in a direction perpendicular to the substrate.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: February 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Kaneko, Takayoshi Fujii, Yusaku Konno, Mitsutoshi Watabiki, Yusuke Ilda, Shinichi Imai, Yuichiro Yamazaki
  • Patent number: 8643230
    Abstract: A linear actuator includes a linear actuator body (2), a casing (3) for housing the linear actuator body (2), and insulating oil (L) that fills the casing (3) with a coil (44) of the linear actuator body (2) submerged therein. In such a configuration, heat generated by the coil (44) is quickly released to the oil (L) and is then conducted to the casing (3). The oil (L) fully spreads into gaps in the coil (44), of course. Therefore, heat is released very efficiently. Thus, by improving the heat-releasing characteristic, a linear actuator having a reduced size and a reduced weight is provided.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 4, 2014
    Assignee: Sinfonia Technology Co., Ltd.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga, Takashi Onoue
  • Patent number: 8626386
    Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: January 7, 2014
    Assignee: Shinko Electric Co., Ltd.
    Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
  • Publication number: 20130334539
    Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a p-side electrode, an n-side electrode, and an inorganic film. The semiconductor layer includes a first surface having an unevenness, a second surface opposite to the first surface, and a light emitting layer. The semiconductor layer includes gallium nitride. The inorganic film is provided to conform to the unevenness of the first surface and in contact with the first surface. The inorganic film has main components of silicon and nitrogen. The inorganic film has a refractive index between a refractive index of the gallium nitride and a refractive index of air. An unevenness is formed also in a surface of the inorganic film.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akihiro KOJIMA, Takayoshi Fujii, Yoshiaki Sugizaki
  • Publication number: 20130320382
    Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a p-side electrode, an n-side electrode, an inorganic insulating film, a p-side interconnection portion, an n-side interconnection portion, and an organic insulating film. The organic insulating film is provided on the inorganic insulating film, at least on a portion between the p-side interconnection portion and the n-side interconnection portion. An end portion of the p-side interconnection portion on the n-side interconnection portion side and an end portion of the n-side interconnection portion on the p-side interconnection portion side override the organic insulating film.
    Type: Application
    Filed: August 7, 2013
    Publication date: December 5, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Akihiro Kojima, Miyuki Shimojuku, Yoshiaki Sugizaki, Yosuke Akimoto, Takayoshi Fujii
  • Publication number: 20130256727
    Abstract: A semiconductor light emitting device includes a light emitting unit, a first and second conductive pillar, a sealing unit, a translucent layer, and a wavelength conversion layer. The light emitting unit includes a first and second semiconductor layer and a light emitting layer. The first semiconductor layer has a first and second major surface. The first major surface has a first and second portion. The second major surface is opposed the first major surface and has a third and fourth portion. The light emitting layer is provided on the first portion. The second semiconductor layer is provided on the light emitting layer. The first conductive pillar is provided on the second portion. The second conductive pillar is provided on the second semiconductor layer. The translucent layer is provided on the fourth portion. The wavelength conversion layer is provided on the third portion and on the translucent layer.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 3, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuhito HIGUCHI, Hideo SHIOZAWA, Takayoshi FUJII, Akihiro KOJIMA, Susumu OBATA, Toshiyuki TERADA
  • Patent number: 8546178
    Abstract: According to one embodiment, a semiconductor light emitting device includes a substrate, a first semiconductor layer, a light emitting layer, a second semiconductor layer, and a translucent electrode. The substrate includes a first region provided along periphery of a first major surface and a second region provided on center side of the first major surface as viewed from the first region. The first semiconductor layer is provided on the first major surface of the substrate. The light emitting layer is provided on the first semiconductor layer. The second semiconductor layer is provided on the light emitting layer. The translucent electrode is provided on the second semiconductor layer. A reflectance in the second region is higher than a reflectance in the first region.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: October 1, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoko Morioka, Takayoshi Fujii, Toshitake Kitagawa, Kazufumi Shiozawa, Taisuke Sato, Hidefumi Yasuda, Yuko Kato
  • Patent number: 8504239
    Abstract: A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an actuator that is attached to the automobile body and drives an auxiliary mass; a current detector that detects a current flowing through an armature of the actuator; a section that detects a terminal voltage applied to the actuator; a calculation circuit that calculates an induced voltage of the actuator, and further calculates at least one of the relative velocity, relative displacement, and relative acceleration of the actuator, based on a current detected by the current detector and the terminal voltage; and a control circuit that drive-controls the actuator based on at least one of the relative velocity, relative displacement, and relative acceleration of the actuator calculated by the calculation circuit.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: August 6, 2013
    Assignee: Shinko Electric Co., Ltd.
    Inventors: Yasushi Muragishi, Hideaki Moriya, Yushi Sato, Takashi Fukunaga, Katsuyoshi Nakano, Hiroshi Nakagawa, Takayoshi Fujii, Takashi Onoue, Masaaki Narihisa
  • Publication number: 20130195136
    Abstract: A semiconductor laser includes: a stacked body having an active layer including a quantum well layer, the active layer having a cascade structure including a first region capable of emitting infrared laser light with a wavelength of not less than 12 ?m and not more than 18 ?m by an intersubband optical transition of the quantum well layer and a second region capable of relaxing energy of a carrier alternately stacked, the stacked body having a ridge waveguide and being capable of emitting the infrared laser light; and a dielectric layer provided so as to sandwich both sides of at least part of side surfaces of the stacked body, a wavelength at which a transmittance of the dielectric layer decreases to 50% being 16 ?m or more, the dielectric layer having a refractive index lower than refractive indices of all layers constituting the active layer.
    Type: Application
    Filed: August 2, 2012
    Publication date: August 1, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Shigeyuki Takagi, Hidehiko Yabuhara, Akira Maekawa, Takayoshi Fujii, Yasutomo Shiomi
  • Patent number: 8471502
    Abstract: A vibration damping apparatus including reference wave production section that produces a reference wave; a fundamental order adaptive algorithm block that calculates fundamental order adaptive filter factors from a vibration detection signal and the reference wave and produces a fundamental order vibration damping current instruction; an amplitude detection section that calculates a peak current value of the fundamental order vibration damping current instruction; and a fundamental order current excess detection section that derives a fundamental order current upper limit value from the fundamental frequency to produce a fundamental order current upper limit excess signal that is output to the fundamental order adaptive algorithm block, which revises the fundamental order adaptive filter factors in a direction in which the vibration damping current instruction is limited within a range.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: June 25, 2013
    Assignee: Sinfonia Technology Co., Ltd.
    Inventors: Hideaki Moriya, Takeshi Tomizaki, Takeo Ito, Yasushi Muragishi, Takayoshi Fujii
  • Publication number: 20130119788
    Abstract: There is provided a movable iron core linear actuator, which includes a magnetic circuit which causes a moving element to reciprocate. The magnetic circuit includes an iron core constituting the moving element, a stator core including a facing portion which faces the iron core, a pair of permanent magnets disposed in the facing portion along a reciprocating direction and having inverted magnetic poles at their surfaces which face the iron core, and a coil wound around the stator core. Energization to coil causes the moving element to reciprocate. When the coil is energized, the spring force of magnetic spring which changed in accordance with a relative position of the moving element with respect to the stator core is superimposed on the electromagnetic driving force produced by the energization of the coil and is applied to the moving element by the magnetic flux produced by the permanent magnets.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 16, 2013
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga
  • Publication number: 20130106203
    Abstract: There is provided a movable iron core linear actuator, which includes a magnetic circuit (mc) which causes a moving element (2) to reciprocate. The magnetic circuit (mc) includes an iron core (20) constituting the moving element (2), a stator core (10) including a facing portion (10c) which faces the iron core (20), a pair of permanent magnets (12a, 12b) disposed in the facing portion (10c) along a reciprocating direction and having inverted magnetic poles at their surfaces which face the iron core, and a coil (11) wound around the stator core (10). Energization to coil (11) causes the moving element (2) to reciprocate. When the coil (11) is not energized, offset force (F4) is applied to the moving element (2) by the magnetic flux produced by the permanent magnets (12a, 12b).
    Type: Application
    Filed: July 11, 2011
    Publication date: May 2, 2013
    Applicant: SINFONIA TECHNOLOGY CO., LTD.
    Inventors: Hiroshi Nakagawa, Takayoshi Fujii, Takashi Fukunaga