Patents by Inventor Yoshikazu Yoshimoto

Yoshikazu Yoshimoto 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: 7995180
    Abstract: The present invention provides a method for manufacturing a liquid crystal display device. In openings of a first light transmission type photosensitive resin formed on an insulating substrate, a gate electrode, a source line, and a pixel contact layer are prepared. On these components, a gate insulator, a semiconductor layer, an ohmic contact layer (n+ semiconductor layer) and a protective film are prepared. Further, in openings of a second light transmission type photosensitive resin, a source electrode, a drain electrode, and a pixel electrode are prepared. Also, the crossing portion connecting line formed at the opening of the second light transmission type photosensitive resin is, similarly to the source line or the gate line, made of baked silver produced by baking an ink containing silver fine particles plotted by ink jet process.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: August 9, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshikazu Yoshimoto
  • Publication number: 20110014841
    Abstract: The present invention provides a liquid crystal display device using a thin-film transistor, and the invention also provides a method for manufacturing the liquid crystal display device. In openings of a first light transmission type photosensitive resin formed on an insulating substrate, a gate electrode, a source line, and a pixel contact layer are prepared. On these components, a gate insulator, a semiconductor layer, an ohmic contact layer (n+ semiconductor layer) and a protective film are prepared. Further, in openings of a second light transmission type photosensitive resin, a source electrode, a drain electrode, and a pixel electrode are prepared. Also, the crossing portion connecting line formed at the opening of the second light transmission type photosensitive resin is, similarly to the source line or the gate line, made of baked silver produced by baking an ink containing silver fine particles plotted by ink jet process.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 20, 2011
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7821604
    Abstract: The present invention provides a liquid crystal display device using a thin-film transistor, and the invention also provides a method for manufacturing the liquid crystal display device. In openings of a first light transmission type photosensitive resin formed on an insulating substrate, a gate electrode, a source line, and a pixel contact layer are prepared. On these components, a gate insulator, a semiconductor layer, an ohmic contact layer (n+ semiconductor layer) and a protective film are prepared. Further, in openings of a second light transmission type photosensitive resin, a source electrode, a drain electrode, and a pixel electrode are prepared. Also, the crossing portion connecting line formed at the opening of the second light transmission type photosensitive resin is, similarly to the source line or the gate line, made of baked silver produced by baking an ink containing silver fine particles plotted by ink jet process.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: October 26, 2010
    Assignee: Future Vision Inc.
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7816158
    Abstract: The present invention provides a liquid crystal display device to be operated at high speed and with high precision by improving performance of a thin-film transistor without increasing cross capacity of gate lines and data lines. On an upper layer of a gate insulator GI at an intersection of gate lines GL and data lines DL to be prepared on an active matrix substrate SUB1, which makes up a liquid crystal display panel of a liquid crystal display device, an insulating material with low dielectric constant is dropped by ink jet coating method to prepare another insulator LDP in order to improve performance characteristics of the thin-film transistor to be prepared on a silicon semiconductor layer SI without increasing cross capacity on said intersection.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: October 19, 2010
    Assignee: Future Vision Inc.
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7738048
    Abstract: The present invention provides a liquid crystal display device to be operated at high speed and with high precision by improving performance of a thin-film transistor without increasing cross capacity of gate lines and data lines. On an upper layer of a gate insulator GI at an intersection of gate lines GL and data lines DL to be prepared on an active matrix substrate SUB1, which makes up a liquid crystal display panel of a liquid crystal display device, an insulating material with low dielectric constant is dropped by ink jet coating method to prepare another insulator LDP in order to improve performance characteristics of the thin-film transistor to be prepared on a silicon semiconductor layer SI without increasing cross capacity on said intersection.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 15, 2010
    Assignee: Future Vision Inc.
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7626650
    Abstract: The present invention provides a technique, by which it is possible to obtain a liquid crystal display panel with high precision by forming very fine pattern of electroconductive film through linking of the areas with different widths, and it is also possible to reduce the number of processes. Like a wide-width electroconductive film and a narrow-width electroconductive film, most of the surface of an underlying film UW of a thin-film transistor substrate SUB1 is turned to lyophobic portion RA, and only the narrow-width gate electrode forming area is turned to lyophilic portion FA. An electroconductive ink is dropped evenly to the gate electrode forming area of the lyophilic portion FA, and a wide-width gate line is formed on the gate line forming area GLA of lyophobic portion RA by direct drawing of IJ.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: December 1, 2009
    Assignee: Future Vision Inc.
    Inventor: Yoshikazu Yoshimoto
  • Publication number: 20090213289
    Abstract: The present invention provides a liquid crystal display device to be operated at high speed and with high precision by improving performance of a thin-film transistor without increasing cross capacity of gate lines and data lines. On an upper layer of a gate insulator GI at an intersection of gate lines GL and data lines DL to be prepared on an active matrix substrate SUB1, which makes up a liquid crystal display panel of a liquid crystal display device, an insulating material with low dielectric constant is dropped by ink jet coating method to prepare another insulator LDP in order to improve performance characteristics of the thin-film transistor to be prepared on a silicon semiconductor layer SI without increasing cross capacity on said intersection.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 27, 2009
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7517735
    Abstract: A method of manufacturing an active matrix substrate includes forming wiring lines each having a matrix pattern on a substrate such that a wiring line extending in any one of a first direction and a second direction is separated from another wiring line at an intersection; forming a laminated portion composed of an insulating layer and a semiconductor layer on a portion of the wiring line and the intersection; and forming a conductive layer electrically connecting the separated wiring line, and a pixel electrode electrically connected to the wiring line via the semiconductor layer on the laminated portion.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: April 14, 2009
    Assignee: Future Vision, Inc.
    Inventors: Yoshikazu Yoshimoto, Yoichi Noda, Atsushi Denda, Toshimitsu Hirai, Shinri Sakai
  • Publication number: 20080074573
    Abstract: The present invention provides a technique, by which it is possible to obtain a liquid crystal display panel with high precision by forming very fine pattern of electroconductive film through linking of the areas with different widths, and it is also possible to reduce the number of processes. Like a wide-width electroconductive film and a narrow-width electroconductive film, most of the surface of an underlying film UW of a thin-film transistor substrate SUB1 is turned to lyophobic portion RA, and only the narrow-width gate electrode forming area is turned to lyophilic portion FA. An electroconductive ink is dropped evenly to the gate electrode forming area of the lyophilic portion FA, and a wide-width gate line is formed on the gate line forming area GLA of lyophobic portion RA by direct drawing of IJ.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Inventor: Yoshikazu Yoshimoto
  • Publication number: 20080062344
    Abstract: The present invention discloses a method for manufacturing a liquid crystal display panel and said liquid crystal display panel by simplifying the manufacturing process and by manufacturing the liquid crystal display panel at lower cost. The ink jet direct drawing method is introduced in the process or in several processes to manufacture a source electrode SD1 and a drain electrode SD2 including gate lines, gate electrodes and data lines of the liquid crystal display panel, and ink jet direct drawing process is used for the formation of an active layer island, which has a laminated layer comprising a silicon semiconductor layer SI and an n+ contact layer NS.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 13, 2008
    Inventor: Yoshikazu Yoshimoto
  • Publication number: 20080055508
    Abstract: The present invention provides a new technique, in which direct drawing of ink jet is used and a gap between a source electrode and a drain electrode is narrowed down to 4 ?m or less without increasing the number of processes. According to this technique, a conductive layer SD1A and a conductive layer SD2A arranged at opposed positions with a first gap are prepared by direct drawing of ink jet on upper layer of a silicon semiconductor layer SI by forming a source electrode SD1 and a drain electrode SD2 on a thin-film transistor, and by a laminating layer of the transparent conductive films SD1 and SD2 with a second gap, which is narrower than the first gap between the opposed ends of the conductive layers, to cover the upper layer of said first layer and the opposed ends of the conductive layers arranged at opposed positions.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 6, 2008
    Inventor: YOSHIKAZU YOSHIMOTO
  • Publication number: 20070138469
    Abstract: The present invention provides a liquid crystal display device to be operated at high speed and with high precision by improving performance of a thin-film transistor without increasing cross capacity of gate lines and data lines. On an upper layer of a gate insulator GI at an intersection of gate lines GL and data lines DL to be prepared on an active matrix substrate SUB1, which makes up a liquid crystal display panel of a liquid crystal display device, an insulating material with low dielectric constant is dropped by ink jet coating method to prepare another insulator LDP in order to improve performance characteristics of the thin-film transistor to be prepared on a silicon semiconductor layer SI without increasing cross capacity on said intersection.
    Type: Application
    Filed: June 15, 2006
    Publication date: June 21, 2007
    Inventor: Yoshikazu Yoshimoto
  • Patent number: 7212024
    Abstract: The object of the present invention is to provide an inspection apparatus for liquid crystal drive substrates that improves the inspection accuracy of liquid crystal drive substrates, judges defect type more accurately, and does not cause a decrease in throughput.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: May 1, 2007
    Assignees: Sharp Kabushiki Kaisha
    Inventors: Yukihiro Iwasaki, Yutaka Nagasawa, Yoshikazu Yoshimoto
  • Publication number: 20060208624
    Abstract: The present invention provides a liquid crystal display device using a thin-film transistor, and the invention also provides a method for manufacturing the liquid crystal display device. In openings of a first light transmission type photosensitive resin formed on an insulating substrate, a gate electrode, a source line, and a pixel contact layer are prepared. On these components, a gate insulator, a semiconductor layer, an ohmic contact layer (n+ semiconductor layer) and a protective film are prepared. Further, in openings of a second light transmission type photosensitive resin, a source electrode, a drain electrode, and a pixel electrode are prepared. Also, the crossing portion connecting line formed at the opening of the second light transmission type photosensitive resin is, similarly to the source line or the gate line, made of baked silver produced by baking an ink containing silver fine particles plotted by ink jet process.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 21, 2006
    Inventor: Yoshikazu Yoshimoto
  • Publication number: 20050068057
    Abstract: The object of the present invention is to provide an inspection apparatus for liquid crystal drive substrates that improves the inspection accuracy of liquid crystal drive substrates, judges defect type more accurately, and does not cause a decrease in throughput.
    Type: Application
    Filed: September 28, 2004
    Publication date: March 31, 2005
    Inventors: Yukihiro Iwasaki, Yutaka Nagasawa, Yoshikazu Yoshimoto
  • Patent number: 6798231
    Abstract: The object of the present invention is to provide an inspection apparatus for liquid crystal drive substrates that improves the inspection accuracy of liquid crystal drive substrates, judges defect type more accurately, and does not cause a decrease in throughput.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: September 28, 2004
    Assignee: Ishiwawajima-Harima Heavy Industries Co., Ltd. & Sharp Kabushiki Kaisha
    Inventors: Yukihiro Iwasaki, Yutaka Nagasawa, Yoshikazu Yoshimoto
  • Publication number: 20030113007
    Abstract: The object of the present invention is to provide an inspection apparatus for liquid crystal drive substrates that improves the inspection accuracy of liquid crystal drive substrates, judges defect type more accurately, and does not cause a decrease in throughput.
    Type: Application
    Filed: October 29, 2002
    Publication date: June 19, 2003
    Inventors: Yukihiro Iwasaki, Yutaka Nagasawa, Yoshikazu Yoshimoto
  • Patent number: 5404837
    Abstract: A method for preparing a graphite intercalation compound having a metal or a metal compound inserted between adjacent graphite layers, comprising simultaneously introducing a mixture of a vapor of both a hydrocarbon compound and an organo metallic compound together with a carrier gas into a reactor, and decomposing said hydrocarbon compound and said organo metallic compound on a single-crystalline substrate at a relatively low temperature.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: April 11, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshikazu Yoshimoto, Tomonari Suzuki, Yoshiyuki Higashigaki, Shigeo Nakajima, Toshio Inoguchi
  • Patent number: 5352299
    Abstract: A thermoelectric material is provided which consists of an oxide with a perovskite structure, wherein the oxide is of the formula (Ln.sub.1-x A.sub.x).sub.2 MO.sub.4 with 0.01.ltoreq.x.ltoreq.0.05, where Ln is a rare earth element, A is an alkali earth metal element, and M is a transition metal element. The thermoelectric material is particularly useful for Peltier cooling elements to produce low temperatures below room temperature.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: October 4, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshikazu Yoshimoto, Eizo Ohno, Masaru Yoshida, Shigeo Nakajima, Shoei Kataoka
  • Patent number: 5316858
    Abstract: The disclosure is directed to a method for converting between heat energy and electric energy which is characterized in that a carbon intercalation compound is employed as a thermoelectric material by utilizing a temperature difference in a direction perpendicular to the structure of carbon layers, or a method for producing a light-heat converting material which is characterized in that a thin metallic layer like a translucent mirror is caused to adhere to the inner surface of a light transmissive hollow tube by pyrolytically decomposing at a temperature approximately below 1000.degree. C., with hydrocarbons being introduced into the hollow tube at the rate of a predetermined amount per hour.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: May 31, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Higashigaki, Yoshikazu Yoshimoto, Tomonari Suzuki, Shigeo Nakajima, Toshio Inoguchi