Patents by Inventor Tatsuya Moriike

Tatsuya Moriike 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: 7515226
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 7, 2009
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 7471356
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: December 30, 2008
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 7123324
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: October 17, 2006
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 6947107
    Abstract: A reflector for a liquid crystal display includes a substrate with light-reflective concave portions on the surface thereof. Each concave portion has a specific vertical section which passes through a deepest point of the concave portion. The internal shape of the specific vertical section is defined by a first curve, which extends from one point on the peripheral edge of the concave portion to the deepest point of the concave portion, and a second curve, which extends continuously from the first curve and from the deepest point of the concave portion to another point on the peripheral edge of the concave portion. The average of the absolute value of an inclination angle of the first curve relative to the substrate surface is larger than the average of the absolute value of an inclination angle of the second curve relative to the substrate surface.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: September 20, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kinji Omote, Mitsuru Kano
  • Patent number: 6912028
    Abstract: A liquid crystal display device includes a reflector disposed at an outside surface side of one substrate of a liquid crystal cell or between the first substrate and an electrode disposed on an inside surface side of the first substrate. When an angle between a direction of a normal line with respect to a display surface of the liquid crystal display device and a main viewing direction is from about 0 degrees to about 20 degrees, a reflection ratio peak value of light incident upon the liquid crystal display device and reflected by the reflector is set so as to occur within a range of about 20 degrees from the normal line direction.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: June 28, 2005
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Mitsuru Kano
  • Publication number: 20040257662
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Application
    Filed: July 21, 2004
    Publication date: December 23, 2004
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 6750930
    Abstract: A reflector and reflector-type LCD suppresses inter-object reflection over a wide angle, and provides particularly high reflectance in an intended range of viewing angle. The reflector includes a plurality of concave portions with an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) that is maximum on a side portion of the curved surface. The concave portions may also be formed such that an inner surface of each of the concave portions include a peripheral curved surface and a bottom curved surface are continuously connected to each other. The peripheral curved surface and the bottom curved surface are interposed partial spheres having different radii and non-collinear normal lines from the surface of each sphere.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 15, 2004
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Publication number: 20040056996
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 25, 2004
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Publication number: 20040056997
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 25, 2004
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Publication number: 20030210368
    Abstract: A liquid crystal display device includes a reflector disposed at an outside surface side of one substrate of a liquid crystal cell or between the first substrate and an electrode disposed on an inside surface side of the first substrate. When an angle between a direction of a normal line with respect to a display surface of the liquid crystal display device and a main viewing direction is from about 0 degrees to about 20 degrees, a reflection ratio peak value of light incident upon the liquid crystal display device and reflected by the reflector is set so as to occur within a range of about 20 degrees from the normal line direction.
    Type: Application
    Filed: June 12, 2003
    Publication date: November 13, 2003
    Applicant: ALPS Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Mitsuru Kano
  • Patent number: 6606139
    Abstract: A liquid crystal display device includes a reflector disposed at an outside surface side of one substrate of a liquid crystal cell or between the first substrate and an electrode disposed on an inside surface side of the first substrate. When an angle between a direction of a normal line with respect to a display surface of the liquid crystal display device and a main viewing direction is from about 0 degrees to about 20 degrees, a reflection ratio peak value of light incident upon the liquid crystal display device and reflected by the reflector is set so as to occur within a range of about 20 degrees from the normal line direction.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: August 12, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Mitsuru Kano
  • Publication number: 20030011730
    Abstract: A liquid crystal display device includes a reflector disposed at an outside surface side of one substrate of a liquid crystal cell or between the first substrate and an electrode disposed on an inside surface side of the first substrate. When an angle between a direction of a normal line with respect to a display surface of the liquid crystal display device and a main viewing direction is from about 0 degrees to about 20 degrees, a reflection ratio peak value of light incident upon the liquid crystal display device and reflected by the reflector is set so as to occur within a range of about 20 degrees from the normal line direction.
    Type: Application
    Filed: April 18, 2002
    Publication date: January 16, 2003
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Mitsuru Kano
  • Publication number: 20030001995
    Abstract: A reflector for a liquid crystal display includes a substrate with light-reflective concave portions on the surface thereof. Each concave portion has a specific vertical section which passes through a deepest point of the concave portion. The internal shape of the specific vertical section is defined by a first curve, which extends from one point on the peripheral edge of the concave portion to the deepest point of the concave portion, and a second curve, which extends continuously from the first curve and from the deepest point of the concave portion to another point on the peripheral edge of the concave portion. The average of the absolute value of an inclination angle of the first curve relative to the substrate surface is larger than the average of the absolute value of an inclination angle of the second curve relative to the substrate surface.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 2, 2003
    Applicant: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kinji Omote, Mitsuru Kano
  • Patent number: 6429919
    Abstract: A brighter and whiter reflector provides high reflection efficiency over a wide range of angles. An indenting tool is pressed against the surface of a matrix base material; the pressing operation is repeated while changing the position of the indenting tool on the surface of the base material for the matrix to successively form many pits, the inner surfaces of which are shaped like partial spheres, on the mold surface of the matrix base material so as to provide it as the matrix for forming the reflector. Then, a transfer mold having a mold surface which has a reversed pattern of the pits and projections of the mold surface of the matrix is made, and the mold surface of the transfer mold is transferred to the surface of the base material for the reflector to provide a reflector (1). Pits (4) of the reflector (1) are formed so that the depths the pits (4) range from 0.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: August 6, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tomomasa Takatsuka, Koichi Moue, Masao Ohkita, Tatsuya Moriike, Tetsushi Tanada, Akito Miura, Mitsuru Kano
  • Patent number: 6421106
    Abstract: A brighter and whiter reflector provides high reflection efficiency over a wide range of angles. An indenting tool is pressed against the surface of a matrix base material; the pressing operation is repeated while changing the position of the indenting tool on the surface of the base material for the matrix to successively form many pits, the inner surfaces of which are shaped like partial spheres, on the mold surface of the matrix base material so as to provide it as the matrix for forming the reflector. Then, a transfer mold having a mold surface which has a reversed pattern of the pits and projections of the mold surface of the matrix is made, and the mold surface of the transfer mold is transferred to the surface of the base material for the reflector to provide a reflector (1). Pits (4) of the reflector (1) are formed so that the depths the pits (4) range from 0.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: July 16, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tomomasa Takatsuka, Koichi Moue, Masao Ohkita, Tatsuya Moriike, Tetsushi Tanada, Akito Miura, Mitsuru Kano
  • Publication number: 20020030774
    Abstract: A reflector and reflector-type LCD suppresses inter-object reflection over a wide angle, and provides particularly high reflectance in an intended range of viewing angle. The reflector includes a plurality of concave portions with an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) that is maximum on a side portion of the curved surface. The concave portions may also be formed such that an inner surface of each of the concave portions include a peripheral curved surface and a bottom curved surface are continuously connected to each other. The peripheral curved surface and the bottom curved surface are interposed partial spheres having different radii and non-collinear normal lines from the surface of each sphere.
    Type: Application
    Filed: June 29, 2001
    Publication date: March 14, 2002
    Applicant: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 6330046
    Abstract: A highly reliable reflection type liquid crystal display device having an organic film is disclosed in which generation of cracks in an electrode layer caused by the sinking in of the terminals of a driving element are prevented. A reliable electrical connection is thereby established between the driving element and the first electrode layer and the organic film is prevented from being separated from the substrate. The reflection type liquid crystal display device includes a pair of substrates, a seal material held between the pair of substrates, and a liquid crystal layer sealed in the space surrounded by the pair of substrates and the seal material. The organic film, which has a plurality of protrusions and recesses, a metal reflection film, an overcoat film, and first electrode layers sequentially formed on the surface of one of the pair of substrates. The organic film and the metal reflection film are formed in a display region but are not formed in a driving element mounting region.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: December 11, 2001
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yoshihiko Ishitaka, Sadao Nakamura, Tatsuya Moriike
  • Patent number: 6060684
    Abstract: A laser beam machine is used to locally remove color filters in a liquid crystal display via laser trimming. The laser beam machine includes an X-Y table, and a machine body containing a rotatable phase difference plate and a beam splitter that are arranged in the optical path of the laser beam. A workpiece is mounted on the X-Y table. The workpiece contains color filters that have been previously formed on transparent electrodes patterned on a transparent substrate. Beams spots are applied to the workpiece in a direction perpendicular to the longitudinal direction of the color filters and at a specific pitch. The laser beam machine may be used to form an opaque film around the color filters at low cost.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: May 9, 2000
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tatsuya Moriike
  • Patent number: 6028288
    Abstract: To provide a liquid crystal display device fabrication method making it possible to form a desired opaque film around a color filter at a low cost.Color filters 52 are locally removed through laser trimming by a laser beam machine provided with a machine body in which a rotatable phase difference plate and a beam splitter are arranged in the optical path of a laser beam and moreover provided with an XY table, mounting a workpiece in which a plurality of transparent electrodes 51 and color filters 52 superposed on transparent electrodes 51 are previously formed on a transparent substrate on the XY table, and applying a plurality of beam spots S to the workpiece in a direction perpendicular to the longitudinal direction of color filters 52 at a certain pitch.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: February 22, 2000
    Assignee: ALPS Electric Co., Ltd.
    Inventor: Tatsuya Moriike
  • Patent number: 5853924
    Abstract: A color filter is manufactured in the steps described below.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: December 29, 1998
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsutoshi Uwami, Toshiyuki Teshirogi, Hideharu Watanabe, Tatsuya Moriike