Patents by Inventor Tsuyoshi Tokuda

Tsuyoshi Tokuda 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: 8537324
    Abstract: A color filter substrate includes: a base substrate; a light-shield layer and a color filter layer provided on the base substrate; a plurality of columnar spacers, made of a resin and provided to stick out of the base substrate; and an undercoat layer, provided between the columnar spacers and the base substrate. The color filter layer includes first, second, and third types of color filters, which transmit light rays in mutually different colors. The undercoat layer is made of the same film as one of the first, second and third types of color filters and the light-shield layer. A portion of the undercoat layer, associated with a first one of the columnar spacers, has a different area and/or shape from another portion of the undercoat layer, associated with a second one of the columnar spacers. The first and second columnar spacers have mutually different heights.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: September 17, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihide Tsubata, Tsuyoshi Tokuda, Yuhko Hashimoto, Yoshinori Kinai, Masayuki Tsuji
  • Patent number: 8334965
    Abstract: A substrate for a liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure, the substrate for the liquid crystal display panel includes a specific structure at a part of or near the first projection structure, the specific structure having at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of ? times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: December 18, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Matsuoka, Shinichi Hirato, Akihiro Shoraku, Kenji Enda, Tsuyoshi Tokuda, Toshihide Tsubata
  • Publication number: 20120294739
    Abstract: An impeller of the present invention includes a front surface shroud including an air intake port; a back surface shroud provided facing the front surface shroud; a first inducer provided between the front surface shroud and the back surface shroud and including a plurality of first blade sections provided around a first hub portion; a second inducer including a plurality of second blade sections connected to the first blade section of the first inducer and provided around a second hub portion; and a plurality of blades connected to the second blade section of the second inducer. A multi-blade structure of the inducer thus can be realized, and an impeller of high performance and low noise can be provided.
    Type: Application
    Filed: February 16, 2011
    Publication date: November 22, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Tsuyoshi Nishimura, Teppei Hidekuma, Kazuhisa Morishita, Tsuyoshi Tokuda, Kazushige Nakamura, Hiroyuki Kayama
  • Patent number: 8284355
    Abstract: The present invention has an object to provide an active matrix substrate, a liquid crystal display panel, a liquid crystal display element, a liquid crystal display device, and a substrate for liquid crystal display panel, each capable of suppressing generation of uneven cell gap without increase in a parasitic capacitance of a wiring. The active matrix substrate of the present invention is an active matrix substrate including a spacer on a substrate, wherein the spacer includes a base layer and a covering layer, the base layer being buried in the covering layer.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: October 9, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Tokuda, Hiroto Akiyama, Akihiro Shoraku, Toshihide Tsubata, Yukio Kurozumi
  • Patent number: 8253917
    Abstract: A substrate for a liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure, the substrate for the liquid crystal display panel includes a specific structure at a part of or near the first projection structure, the specific structure having at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of ? times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: August 28, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Matsuoka, Shinichi Hirato, Akihiro Shoraku, Kenji Enda, Tsuyoshi Tokuda, Toshihide Tsubata
  • Publication number: 20120044452
    Abstract: A substrate for a liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure, the substrate for the liquid crystal display panel includes a specific structure at a part of or near the first projection structure, the specific structure having at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of ? times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 23, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohji MATSUOKA, Shinichi HIRATO, Akihiro SHORAKU, Kenji ENDA, Tsuyoshi TOKUDA, Toshihide TSUBATA
  • Publication number: 20120038935
    Abstract: A substrate for a liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure, the substrate for the liquid crystal display panel includes a specific structure at a part of or near the first projection structure, the specific structure having at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of ? times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 16, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kohji MATSUOKA, Shinichi HIRATO, Akihiro SHORAKU, Kenji ENDA, Tsuyoshi TOKUDA, Toshihide TSUBATA
  • Patent number: 8059253
    Abstract: A color filter substrate in which the heights of columnar spacers can be arbitrarily controlled by a simple manufacturing process, and a liquid crystal display device including such a color filter substrate are provided. The color filter substrate includes a transparent substrate, a light-shield layer and a color filter layer provided on the transparent substrate, columnar spacers sticking out of the transparent substrate, and a protrusion to control the orientation of liquid crystal molecules. The color filter layer includes first, second and third color filters transmitting light rays in different colors. The columnar spacers include first and second types of columnar spacers with different heights. Each spacer of the first type includes a first lower structure, including at least one layer made of the same film as at least one of the first, second and third color filters and the light-shield layer, and a first upper structure, including a layer made of the same film as the protrusion.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 15, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Tokuda, Toshihide Tsubata, Akihiro Shohraku
  • Patent number: 8023072
    Abstract: A color filter substrate is used in a display device including pixels arranged in columns and rows to define a matrix pattern. The color filter substrate includes a transparent substrate and coloring layers, including a first color filter layer, a second color filter layer and an light shielding layer, provided on the transparent substrate. The first and second color filter layers include a first color filter column and a second color filter column, respectively, each of which is arranged for an associated column of pixels. The light shielding layer includes an light shielding column, which is provided for a gap between two adjacent columns of pixels.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: September 20, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihide Tsubata, Tsuyoshi Tokuda, Masayuki Tsuji
  • Patent number: 7911578
    Abstract: A substrate for a liquid crystal display panel includes a first projection structure and a second projection structure and/or a depression structure, the substrate for the liquid crystal display panel includes a specific structure at a part of or near the first projection structure, the specific structure having at least one of a planar shape different from a planar shape of the second projection structure and/or the depression structure and a planar area of 2/3 times or less or 1.5 times or more than a planar area of the second projection structure and/or the depression structure.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: March 22, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kohji Matsuoka, Shinichi Hirato, Akihiro Shoraku, Kenji Enda, Tsuyoshi Tokuda, Toshihide Tsubata
  • Patent number: 7826012
    Abstract: A color filter substrate and a liquid crystal display apparatus include, on a substrate: a colorized layer including color layers; a stacked layer protruding in comparison with the colorized layer; an opposing electrode covering the colorized layer and the stacked layer; an alignment layer formed at least on a part of the opposing electrode covering the colorized layer; and an insulating layer stacked on an entire surface of another part of the opposing electrode covering the stacked layer. With this, the short circuit between the opposing electrode and a pixel electrode is prevented, so that a color filter substrate, a liquid crystal display apparatus including the color filter substrate, and a method of manufacturing the color substrate, those being able to improve the yield of the liquid crystal display apparatus, are provided.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: November 2, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda
  • Patent number: 7812893
    Abstract: An active matrix substrate suppresses reduction in production yield and increase in production steps and simultaneously permits both sufficient securing of a storage capacity and improvement of an aperture ratio of a pixel. The active matrix substrate is an active matrix substrate and includes a thin film transistor disposed at an intersection of a scanning signal line with a data signal line on a substrate, the thin film transistor including a gate electrode connected to the scanning signal line, a source electrode connected to the data signal line, and a drain electrode connected to a drain lead-out wiring; a storage capacitor upper electrode connected to the drain lead-out wiring and a pixel electrode; and a storage capacitor wiring overlapping with the storage capacitor upper electrode through an insulating film, wherein the storage capacitor wiring has an extending portion overlapping with the drain lead-out wiring through the insulating film.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: October 12, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda, Kenji Enda, Yoshinori Shimada, Shinya Maruoka
  • Patent number: 7724345
    Abstract: A color filter substrate according to the present invention includes a transparent substrate; at least three colors of colored layers provided on the transparent substrate; first columnar structure bodies 101 provided in pixel outskirts within a display region, the first columnar structure bodies 101 defining a cell gap; and second columnar structure bodies 102 provided in the pixel outskirts within the display region or outside the display region, the second columnar structure bodies 102 having a smaller height than that of the first columnar structure bodies 101, such that a difference from the height of the first columnar structure bodies 101 exceeds a range of elastic deformation of the first columnar structure bodies 101.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: May 25, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masayuki Tsuji, Toshihide Tsubata, Tsuyoshi Tokuda
  • Publication number: 20100045906
    Abstract: The present invention has an object to provide an active matrix substrate, a liquid crystal display panel, a liquid crystal display element, a liquid crystal display device, and a substrate for liquid crystal display panel, each capable of suppressing generation of uneven cell gap without increase in a parasitic capacitance of a wiring. The active matrix substrate of the present invention is an active matrix substrate including a spacer on a substrate, wherein the spacer includes a base layer and a covering layer, the base layer being buried in the covering layer.
    Type: Application
    Filed: October 12, 2007
    Publication date: February 25, 2010
    Inventors: Tsuyoshi Tokuda, Hiroto Akiyama, Akihiro Shoraku, Toshihide Tsubata, Yukio Kurozumi
  • Publication number: 20090257008
    Abstract: A color filter substrate and a liquid crystal display apparatus include, on a substrate: a colorized layer including color layers; a stacked layer protruding in comparison with the colorized layer; an opposing electrode covering the colorized layer and the stacked layer; an alignment layer formed at least on a part of the opposing electrode covering the colorized layer; and an insulating layer stacked on an entire surface of another part of the opposing electrode covering the stacked layer. With this, the short circuit between the opposing electrode and a pixel electrode is prevented, so that a color filter substrate, a liquid crystal display apparatus including the color filter substrate, and a method of manufacturing the color substrate, those being able to improve the yield of the liquid crystal display apparatus, are provided.
    Type: Application
    Filed: June 24, 2009
    Publication date: October 15, 2009
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda
  • Patent number: 7586563
    Abstract: The present invention is a color filter substrate comprising: a non-laminated part in which a colored layer and/or a transparent layer are arranged in a plane; and a laminated part in which parts of the colored layer and/or the transparent layer are laminated as two or more layers on a substrate, (1) a film thickness of a layer constituting the laminated part is not less than 90% and not more than 110% to a film thickness of a corresponding layer of the non-laminated part and/or (2) the colored layer and/or the transparent layer are formed using a dry film having a solid-phase resist layer having penetration amount in a penetration hardness test at 120° C. of not more than 0.5 ?m.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: September 8, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Tokuda, Toshifumi Yagi, Toshihide Tsubata, Yoshinori Kinai, Ryuji Kurihara
  • Patent number: 7575836
    Abstract: The fabrication method for a color filter substrate of the present invention includes the step of forming a coloring layer, which includes the steps of: forming first coloring lines each including a plurality of first coloring portions lined in a first direction with a gap given between the adjacent first coloring portions; and forming second coloring lines after the formation of the first coloring lines. The step of forming second coloring lines includes the step of pressing a dry film for the second coloring lines against a substrate to stick the dry film on the substrate along a third direction crossing the first direction.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: August 18, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihide Tsubata, Tsuyoshi Tokuda
  • Patent number: 7570323
    Abstract: A color filter substrate and a liquid crystal display apparatus include, on a substrate: a colorized layer including color layers; a stacked layer protruding in comparison with the colorized layer; an opposing electrode covering the colorized layer and the stacked layer; an alignment layer formed at least on a part of the opposing electrode covering the colorized layer; and an insulating layer stacked on an entire surface of another part of the opposing electrode covering the stacked layer. With this, the short circuit between the opposing electrode and a pixel electrode is prevented, so that a color filter substrate, a liquid crystal display apparatus including the color filter substrate, and a method of manufacturing the color substrate, those being able to improve the yield of the liquid crystal display apparatus, are provided.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: August 4, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda
  • Publication number: 20090161046
    Abstract: A color filter substrate in which the heights of columnar spacers can be arbitrarily controlled by a simple manufacturing process, and a liquid crystal display device including such a color filter substrate are provided. The color filter substrate includes a transparent substrate, a light-shield layer and a color filter layer provided on the transparent substrate, columnar spacers sticking out of the transparent substrate, and a protrusion to control the orientation of liquid crystal molecules. The color filter layer includes first, second and third color filters transmitting light rays in different colors. The columnar spacers include first and second types of columnar spacers with different heights. Each spacer of the first type includes a first lower structure, including at least one layer made of the same film as at least one of the first, second and third color filters and the light-shield layer, and a first upper structure, including a layer made of the same film as the protrusion.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 25, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Tokuda, Toshihide Tsubata, Akihiro Shohraku
  • Publication number: 20090073335
    Abstract: An active matrix substrate suppresses reduction in production yield and increase in production steps and simultaneously permits both sufficient securing of a storage capacity and improvement of an aperture ratio of a pixel. The active matrix substrate is an active matrix substrate and includes a thin film transistor disposed at an intersection of a scanning signal line with a data signal line on a substrate, the thin film transistor including a gate electrode connected to the scanning signal line, a source electrode connected to the data signal line, and a drain electrode connected to a drain lead-out wiring; a storage capacitor upper electrode connected to the drain lead-out wiring and a pixel electrode; and a storage capacitor wiring overlapping with the storage capacitor upper electrode through an insulating film, wherein the storage capacitor wiring has an extending portion overlapping with the drain lead-out wiring through the insulating film.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 19, 2009
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Tsuyoshi Tokuda, Kenji Enda, Yoshinori Shimada, Shinya Maruoka