Patents by Inventor Kazuya Kaida

Kazuya Kaida 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: 9274371
    Abstract: A color conversion substrate that can improve light use efficiency is provided. A color conversion substrate includes a transparent substrate having a main surface, a plurality of phosphor patterns arranged on the main surface and each of the phosphor patterns having side faces, and a reflective film that reflects light and is formed on at least the side faces of the phosphor patterns. An air layer is defined between the main surface and the phosphor patterns.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: March 1, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuya Kaida, Shinya Kadowaki
  • Publication number: 20150131029
    Abstract: A color conversion substrate that can improve light use efficiency is provided. A color conversion substrate includes a transparent substrate having a main surface, a plurality of phosphor patterns arranged on the main surface and each of the phosphor patterns having side faces, and a reflective film that reflects light and is formed on at least the side faces of the phosphor patterns. An air layer is defined between the main surface and the phosphor patterns.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 14, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazuya Kaida, Shinya Kadowaki
  • Publication number: 20140313691
    Abstract: An image display device includes a light source unit emitting light, a light shutter arranged on the light source unit and selectively causing light received from the light source unit to exit therefrom, and a phosphor substrate arranged on the light shutter such that light from the light shutter enters and including a phosphor. The phosphor substrate is arranged such that the phosphor faces the light shutter. The phosphor and the light shutter are arranged to face each other with an air layer interposed therebetween.
    Type: Application
    Filed: September 27, 2012
    Publication date: October 23, 2014
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazuya Kaida, Koji Yamabuchi
  • Publication number: 20130002986
    Abstract: A display device includes: a light source unit configured to emit light from a light emitting surface; and a phosphor layer (120) having a plurality of phosphors (123R, 123G) provided on a light-emitting side of the light source unit so as to correspond to pixels, and configured to absorb the light emitted from the light source unit and produce fluorescence of a predetermined wavelength. A bottom reflective layer (125) is provided on the side of the light source unit with respect to the phosphor layer (120) at least in regions where the phosphors (123R, 123G) are formed.
    Type: Application
    Filed: March 3, 2011
    Publication date: January 3, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shinya Kadowaki, Takeshi Ishida, Fumie Kunimasa, Kazuya Kaida
  • Publication number: 20120268687
    Abstract: An light guide (12) has an indented pattern (105) on its front surface (10a) and an indented pattern (103) on its back surface (10b), and includes: a light guide plate (15) including the indented pattern (105) provided on the front surface (10a); a light distribution control part (13) including the indented pattern (103) provided on the back surface (10b); and a middle layer (14) provided between the light guide plate (15) and the light distribution control part (13), the light distribution control part (13) being less in film thickness than the light guide plate (15), and the light distribution control part (13) having a glass transition point lower than that of the light guide plate (15). This makes it possible to form indented patterns on the front surface and the back surface of an optical laminate constituted by a stack of a plurality of layers, while preventing occurrence of defects.
    Type: Application
    Filed: November 29, 2010
    Publication date: October 25, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Kazuya Kaida
  • Publication number: 20120087107
    Abstract: A red color filter (13R) includes a first absorbent having an absorption wavelength region in most of a low wavelength region other than the wavelength region of red light (R) emitted by fluorescence and a second absorbent having an absorption wavelength region overlapping with the wavelength region of blue light (B) included in the rest of the wavelength region other than most of the low wavelength region.
    Type: Application
    Filed: March 19, 2010
    Publication date: April 12, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Fumie Kunimasa, Takeshi Ishida, Shinya Kadowaki, Yuhji Yashiro, Ryuzo Yuki, Tadashi Kawamura, Kazuya Kaida, Hiroaki Shigeta
  • Publication number: 20120019740
    Abstract: Disclosed is a liquid crystal display panel wherein the utilization efficiency of light can be improved, while suppressing deterioration of the contrast. Specifically, a color filter (17) of a liquid crystal display panel (10) comprises: a black matrix (21) which is provided with an opening (2a); a red phosphor layer (22) and a red filter layer (23) which are arranged within the opening (21a) in a red display region (R); a green phosphor layer (24) and a green filter layer (25) which are arranged within the opening (21a) in a green display region (G); and a transparent resin layer (26) and a blue filter layer (27) which are arranged within the opening (21a) in a blue display region (B) A light exit surface of the transparent resin layer (26) is provided with a plurality of projected portions (26c), and the transparent resin layer (26) has a refractive index different from that of the blue filter layer (27), which is in contact with the light exit surface.
    Type: Application
    Filed: October 16, 2009
    Publication date: January 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinya Kadowaki, Takeshi Ishida, Kazuya Kaida, Yuhji Yashiro, Fumie Kunimasa, Hiroaki Shigeta, Ryazo Yuki
  • Publication number: 20120013654
    Abstract: A liquid crystal display panel (39) includes a diffraction grating (DG) that is provided on the side of the inner surface (32N) of an opposed substrate (32) for receiving light and is used for enhancing the light output efficiency from the inner surface (32N) to the outside.
    Type: Application
    Filed: October 29, 2009
    Publication date: January 19, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yuji Yashiro, Kazuya Kaida, Shinya Kadowaki, Fumie Kunimasa, Takeshi Ishida, Hiroaki Shigeta, Ryuzo Yuki
  • Publication number: 20110299013
    Abstract: A planar illumination device is provided that enhances the efficiency of use of light and its brightness while suppressing uneven brightness, that reduces an increase in the manufacturing cost and that can reduce the thickness of the planar illumination device. In this backlight device (planar illumination device) (20), in the light emitting surface (23b) of a light guide body (23), a plurality of prisms (23e) that gradually reduce an angle of incidence of light with respect to the back surface (23c) of the light guide body are provided, and, in the back surface (24a) of a low refractive index layer (24), a plurality of prisms (24b) that have the function of forwardly and totally reflecting light from LEDs (21) in an interface between the back surface of the low refractive index layer and an air layer are formed.
    Type: Application
    Filed: October 7, 2009
    Publication date: December 8, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Ishida, Kazuya Kaida, Tadashi Kawamura, Yuji Yashiro, Shinya Kadowaki, Fumie Kunimasa, Hiroaki Shigeta, Ryuzo Yuki
  • Patent number: 7990495
    Abstract: A method for cutting apart a glass substrate is provided whereby scribing of the glass substrate is possible without being affected by the presence or thickness of a deposited film formed thereon and without scratching the deposited film. To treat a glass substrate having a deposited film, such as a thin film or resin film, formed on one surface thereof, there are provided a shaving device, which is a blade that removes strip-shaped portions of the deposited film to expose strip-shaped regions on the glass substrate, and a wheel cutter (14a) that forms scribed lines along the strip-shaped regions exposed on the glass substrate. The glass substrate is cut apart along the scribed lines.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: August 2, 2011
    Assignees: Sharp Kabushiki Kaisha, Citizen Seimitsu Co., Ltd.
    Inventors: Koji Yamabuchi, Tomohisa Komoda, Kazuya Kaida, Akinori Izumi, Takane Horiuchi, Shinya Takabe, Toshimitsu Furuya, Tetsuro Katayama
  • Patent number: 7889309
    Abstract: A manufacturing method of a liquid crystal display panel includes: a sealant arranging step of arranging a sealant on a main surface of one of or each of two substrates to be bonded to each other; a liquid crystal dropping step of dropping liquid crystal on one of the two substrates; and a bonding step of bonding the two substrates to each other, wherein the method further includes: to be performed prior to the liquid crystal dropping step, a deaerating step of arranging in a pressure-reduced atmosphere at least a substrate on which the liquid crystal is to be dropped out of the two substrates; and, to be performed prior to the bonding step, a releasing step of releasing the pressure-reduced atmosphere by an inert gas.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: February 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuya Kaida, Akinori Izumi
  • Patent number: 7868964
    Abstract: A liquid crystal display panel manufacturing apparatus is provided with a stage for fixing a substrate having an optical film adhered to at least one of surfaces of the substrate. The stage has a suction hole for attracting the substrate by suction. The stage has an interposition member located around a region provided with the suction hole, and the interposition member has a closed frame-like form in a plan view. A display panel manufacturing apparatus that can stably fix the substrate is provided.
    Type: Grant
    Filed: December 26, 2005
    Date of Patent: January 11, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akinori Izumi, Kazuya Kaida, Koji Yamabuchi, Makoto Nakahara, Nobuo Sasaki
  • Publication number: 20090201444
    Abstract: A method for cutting apart a glass substrate is provided whereby scribing of the glass substrate is possible without being affected by the presence or thickness of a deposited film formed thereon and without scratching the deposited film. To treat a glass substrate having a deposited film, such as a thin film or resin film, formed on one surface thereof, there are provided a shaving device, which is a blade that removes strip-shaped portions of the deposited film to expose strip-shaped regions on the glass substrate, and a wheel cutter (14a) that forms scribed lines along the strip-shaped regions exposed on the glass substrate. The glass substrate is cut apart along the scribed lines.
    Type: Application
    Filed: January 16, 2009
    Publication date: August 13, 2009
    Inventors: Koji Yamabuchi, Tomohisa Komoda, Kazuya Kaida, Akinori Izumi, Takane Horiuchi, Shinya Takabe, Toshimitsu Furuya, Tetsuro Katayama
  • Patent number: 7553390
    Abstract: A method for cutting apart a glass substrate is provided whereby scribing of the glass substrate is possible without being affected by the presence or thickness of a deposited film formed thereon and without scratching the deposited film. To treat a glass substrate having a deposited film, such as a thin film or resin film, formed on one surface thereof, there are provided a shaving device, which is a blade that removes strip-shaped portions of the deposited film to expose strip-shaped regions on the glass substrate, and a wheel cutter that forms scribed lines along the strip-shaped regions exposed on the glass substrate. The glass substrate is cut apart along the scribed lines.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: June 30, 2009
    Assignees: Sharp Kabushiki Kaisha, Citizen Seimitsu Co., Ltd.
    Inventors: Koji Yamabuchi, Tomohisa Komoda, Kazuya Kaida, Akinori Izumi, Takane Horiuchi, Shinya Takabe, Toshimitsu Furuya, Tetsuro Katayama
  • Publication number: 20070259589
    Abstract: A liquid crystal display panel manufacturing apparatus is provided with a stage for fixing a substrate having an optical film adhered to at least one of surfaces of the substrate. The stage has a suction hole for attracting the substrate by suction. The stage has an interposition member located around a region provided with the suction hole, and the interposition member has a closed frame-like form in a plan view. A display panel manufacturing apparatus that can stably fix the substrate is provided.
    Type: Application
    Filed: December 26, 2005
    Publication date: November 8, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akinori Izumi, Kazuya Kaida, Koji Yamabuchi, Makoto Nakahara, Nobuo Sasaki
  • Publication number: 20070052913
    Abstract: A manufacturing method of a liquid crystal display panel includes: a sealant arranging step of arranging a sealant on a main surface of one of or each of two substrates to be bonded to each other; a liquid crystal dropping step of dropping liquid crystal on one of the two substrates; and a bonding step of bonding the two substrates to each other, wherein the method further includes: to be performed prior to the liquid crystal dropping step, a deaerating step of arranging in a pressure-reduced atmosphere at least a substrate on which the liquid crystal is to be dropped out of the two substrates; and, to be performed prior to the bonding step, a releasing step of releasing the pressure-reduced atmosphere by an inert gas.
    Type: Application
    Filed: September 2, 2004
    Publication date: March 8, 2007
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazuya Kaida, Akinori Izumi
  • Publication number: 20050056127
    Abstract: A method for cutting apart a glass substrate is provided whereby scribing of the glass substrate is possible without being affected by the presence or thickness of a deposited film formed thereon and without scratching the deposited film. To treat a glass substrate (1) having a deposited film (1a), such as a thin film or resin film, formed on one surface thereof, there are provided a shaving means (202), which is a blade that removes strip-shaped portions of the deposited film (1a) to expose strip-shaped regions on the glass substrate (1), and a wheel cutter (14a) that forms scribed lines along the strip-shaped regions exposed on the glass substrate (1). The glass substrate (1) is cut apart along the scribed lines.
    Type: Application
    Filed: November 5, 2002
    Publication date: March 17, 2005
    Inventors: Koji Yamabuchi, Tomohisa Komoda, Kazuya Kaida, Akinori Izumi, Takane Horiuchi, Shinya Takabe, Toshimitsu Furuya, Tetsuro Katayama