Patents by Inventor Yasuyuki Fukuda

Yasuyuki Fukuda 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: 20170363910
    Abstract: The present invention relates to illumination techniques and a reflection member that receives light from a light source and forms an irradiated area having a substantially polygonal shape in an irradiated plane, and an illumination device, a surface light source device, a display device, electronic equipment and the like using the same.
    Type: Application
    Filed: May 17, 2017
    Publication date: December 21, 2017
    Applicant: Enplas Corporation
    Inventors: Yasuyuki Fukuda, Yuta Kodama
  • Publication number: 20170328537
    Abstract: This light-emitting device has a light-emitting element, whereof the shape in planar view is rectangular, for emitting light, and a light flux control member. The light flux control member has an entry surface, a back surface, and where grid-shaped protruding stripes comprising a plurality of protruding stripes disposed into a grid shape or grid-shaped recessed stripes comprising a plurality of recessed stripes disposed into a grid shape are formed; and an exit surface disposed on the surface facing away from the back surface, and where the light that has entered the entry surface is caused to exit. Of the angles formed by each of the four sides constituting the outer edges of the light-emitting element and a first virtual straight line that is parallel to the crest lines of the grid-shaped protruding stripes or the valley lines of the grid-shaped recessed stripes, the smaller angle is an acute angle.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 16, 2017
    Inventors: Yasuyuki FUKUDA, Ryo NONAKA
  • Publication number: 20170261176
    Abstract: A light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incidence surface and an emission surface, and is disposed such that, in a cross section of the light emitting device, light emitted at at least ?1=81° from a light emission center of the light emitting element is incident on the rear surface of the light flux controlling member, and the emission surface is formed such that, in the cross section of the light emitting device, a curve of a graph with an abscissa of ?1 and an ordinate of ?2 includes an inflection point, wherein ?2 is an angle between a line orthogonal to the optical axis and a tangent to the emission surface at a point P, the point P being an arrival point of light emitted from the light emission center at angle ?1.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 14, 2017
    Inventors: Yasuyuki FUKUDA, Kakeru NAKAMURA
  • Patent number: 9752750
    Abstract: A light flux controlling member includes a concavity on which light is incident on, a light control/emission surface that controls a traveling direction of light incident on the concavity, and a back surface that extends in a radial direction from an opening rim part of the concavity. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface. A method of manufacturing the light flux controlling member includes forming one of the grid convex part and the grid concave part integrally with a main body of the light flux controlling member by integral molding using a mold having a shape corresponding to one of the grid convex part and the grid concave part.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: September 5, 2017
    Assignee: ENPLAS CORPORATION
    Inventors: Masao Yamaguchi, Yasuyuki Fukuda
  • Publication number: 20170089543
    Abstract: A light flux controlling member includes a concavity on which light is incident on, a light control/emission surface that controls a traveling direction of light incident on the concavity, and a back surface that extends in a radial direction from an opening rim part of the concavity. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface. A method of manufacturing the light flux controlling member includes forming one of the grid convex part and the grid concave part integrally with a main body of the light flux controlling member by integral molding using a mold having a shape corresponding to one of the grid convex part and the grid concave part.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Inventors: Masao YAMAGUCHI, Yasuyuki FUKUDA
  • Publication number: 20170022661
    Abstract: A rope terminal fixing method is provided, which may be used easily at a construction site, causes less shearing load, and may reliably prevent the falling-off of the rope. The rope terminal fixing method comprises the following steps. A tubular terminal metal fitting which comprises a proximal opening, a distal opening, and a through hole communicating the proximal and distal openings is prepared. A terminal of a rope is inserted through the proximal opening into the through hole, a portion of the terminal of the rope extended from the distal opening is loosened, and a diameter-enlarging member is fixed to a core wire of the rope. Then, the terminal of the rope is brought back into the through hole. A fixed width portion extending in an axial direction of the terminal metal fitting is pressed from the outside in a circumferential direction by swaging, such that a protrusion constraining the rope so as to reduce its diameter is formed in the through hole.
    Type: Application
    Filed: December 2, 2013
    Publication date: January 26, 2017
    Inventors: Yasuyuki Fukuda, Noriaki Kose
  • Patent number: 9546773
    Abstract: A surface light source apparatus has a light emitting element, a light flux controlling member and a light diffusing member. The light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member. Surface roughening treatment is applied to one of the strips of the convex parts and the strips of the concave parts.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: January 17, 2017
    Assignee: ENPLAS Corporation
    Inventors: Masao Yamaguchi, Yasuyuki Fukuda
  • Publication number: 20160161083
    Abstract: A surface light source apparatus has a light emitting element, a light flux controlling member and a light diffusing member. The light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member. Surface roughening treatment is applied to one of the strips of the convex parts and the strips of the concave parts.
    Type: Application
    Filed: January 4, 2016
    Publication date: June 9, 2016
    Inventors: Masao YAMAGUCHI, Yasuyuki FUKUDA
  • Patent number: 9347643
    Abstract: A light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 24, 2016
    Assignee: Enplas Corporation
    Inventors: Masao Yamaguchi, Yasuyuki Fukuda
  • Patent number: 9086517
    Abstract: The present invention relates to light flux controlling member (140) formed by injection molding, light emitting apparatus (120) having light flux controlling member (140), surface light source apparatus (100) having light emitting apparatus (120), and a display apparatus having surface light source apparatus (100). Light flux controlling member (140) includes light control emission surface (141) configured to control light distribution of light emitted from light emitting element (130), and back face (142) opposite to light control emission surface (141). Light flux controlling member (140) is formed by injection molding by an overlap gate scheme, or by combination of the overlap gate scheme and a side gate scheme. Therefore, on back face (142) of light flux controlling member (140), there remains gate remnant (147) in such a manner to be in contact with an outer rim.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 21, 2015
    Assignee: ENPLAS Corporation
    Inventors: Yasuyuki Fukuda, Masao Yamaguchi
  • Patent number: 8679762
    Abstract: [PROBLEMS] To provide a probe useful in the detection of HBV or HBs antigen by which an escape mutant of hepatitis B virus (HBV) possibly occurring in a specimen can be detected; and a method of using the same. [MEANS FOR SOLVING PROBLEMS] A probe capable of recognizing an epitope located on a peptide comprising the amino acid sequence of SEQ ID NO:1; and a method of detecting hepatitis B virus or hepatitis B virus s antigen by using this probe.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: March 25, 2014
    Assignee: Advanced Life Science Institute, Inc.
    Inventors: Noboru Maki, Yasuyuki Fukuda, Tatsuji Kimura, Yoko Oda, Chiharu Ohue, Osamu Kusano
  • Publication number: 20140009944
    Abstract: Light flux controlling member (100) includes emission surface (110) that includes emission concave portion (111) formed so as to intersect with optical axis (LA) of light emitting element (210), incidence surface (120) that constitutes an inner surface of incidence concave portion (121) formed on the opposite side of emission concave portion (111), and back surface (130) that extends in a direction perpendicular to optical axis (LA) from an opening edge portion of incidence concave portion (121). A cross section of at least one of emission surface (110) and incidence surface (120) which is perpendicular to optical axis (LA) has an elliptical shape.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventor: Yasuyuki FUKUDA
  • Publication number: 20130343058
    Abstract: A light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 26, 2013
    Inventors: Masao YAMAGUCHI, Yasuyuki FUKUDA
  • Patent number: 8487526
    Abstract: A light emitting apparatus has a light emitting element arranged on a substrate and a light flux controlling member. The light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member. The substrate and the back surface of the light flux controlling member are placed opposite to one another without intervention of a reflective sheet therebetween.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: July 16, 2013
    Assignee: Enplas Corporation
    Inventors: Masao Yamaguchi, Yasuyuki Fukuda
  • Patent number: 8328395
    Abstract: A light emitting apparatus emits light emitted from a light emitting element (200) mounted on a substrate (300) via a luminous flux control member (100). The luminous flux control member (100) has a bottom surface section (101) opposite to the substrate (300), an input surface section (106) for causing the light emitted from a light emitting element (200) to enter inside the input surface section (106), a light control output surface section (102) for refracting the light having entered from the input surface section (106) and outputting the light outside, and two or more leg sections (103) are formed to project outward from the bottom surface section (101) inside a circle with a circumference on which a position where the amount of light reflected by the light control output surface section (102) and yet reaching the bottom surface section (101) peaks is located, and attached to the substrate (300).
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: December 11, 2012
    Assignee: Enplas Corporation
    Inventors: Hideaki Kato, Yasuyuki Fukuda
  • Patent number: 8300444
    Abstract: A nonvolatile semiconductor memory device comprises a memory cell array of electrically erasable programmable nonvolatile memory cells arranged in matrix, each memory cell using a variable resistor. A pulse generator generates plural types of write pulses for varying the resistance of the variable resistor based on write data. A selection circuit applies write pulses generated by the pulse generator to the memory cell. A sense amplifier executes verify read to the memory cell. A status decision circuit decides the verify result based on the output from the sense amplifier. A control circuit executes additional write to the memory cell based on the verify result from the status decision circuit.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 30, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Nagashima, Koichi Kubo, Yasuyuki Fukuda
  • Patent number: 8279669
    Abstract: According to one embodiment, a semiconductor storage device includes a first cell, a second cell, a bit line, a first buffer, a second buffer, and a controller. The bit line transfers the data to the first cell and the second cell. The first buffer holds write data to the first cell and the second cell. The second buffer holds read data from the first cell. The controller controls first writing and rewriting executed for the first cell and second writing executed for the second cell. The write data in the first buffer is updated each time a second write signal is given. The controller executes the first writing based on the write data held by the first buffer. The controller performs the second writing based on the write data updated in the first buffer. The controller executes the rewriting based on the read data held by the second buffer.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: October 2, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Norihiro Fujita, Yasuyuki Fukuda
  • Publication number: 20120235554
    Abstract: A light emitting apparatus has a light emitting element arranged on a substrate and a light flux controlling member. The light flux controlling member has: a light control/emission surface that controls a traveling direction of light; a concavity that allows a main beam to be incident inside; and a back surface that extends in a radial direction from an opening rim part of the concavity and that allows sub-beams to be incident inside. One of a grid convex part which arranges a plurality of strips of convex parts in a grid pattern and a grid concave part which arranges a plurality of strips of concave parts in a grid pattern is formed in the back surface of the light flux controlling member. The substrate and the back surface of the light flux controlling member are placed opposite to one another without intervention of a reflective sheet therebetween.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 20, 2012
    Inventors: Masao YAMAGUCHI, Yasuyuki Fukuda
  • Patent number: 8227969
    Abstract: A light emitting apparatus can prevent unevenness in illuminance from being produced. This light emitting apparatus 5 has: light emitting elements 3 that emit light; and light flux controlling members 4 that control the traveling directions of light emitted from light emitting elements 3, and a plurality of grid convex parts 13 are formed in back surface 12 (i.e. lens bottom surface) of light flux controlling member 4. Grid convex parts 13 vary the incident angles of light incident on back surface 12 of light flux controlling member 4. Therefore, light incident from back surface 12 is scattered without being concentrated, and is emitted from light flux controlling member 4.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: July 24, 2012
    Assignee: Enplas Corporation
    Inventors: Masao Yamaguchi, Yasuyuki Fukuda
  • Patent number: D778334
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: February 7, 2017
    Assignee: ENPLAS CORPORATION
    Inventors: Hiroshi Takatori, Yasuyuki Fukuda, Ryo Nonaka