Patents by Inventor Takahisa Shimizu

Takahisa Shimizu 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: 8021202
    Abstract: One embodiment of the present invention is a method for manufacturing an organic EL display panel in which a substrate which has a pixel electrode, a partition wall, a sub pixel which has a short side and a long side sectioned by the partition wall and a pixel including a plurality of the sub pixels are prepared and a first organic layer is formed and printed so as to form a stripe shape in the short side direction of the sub pixel and a second organic layer as a luminescent layer is formed on the sub pixel.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 20, 2011
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Syohei Kimura, Eiichi Kitazume
  • Publication number: 20110091767
    Abstract: An electricity storage device including a positive electrode 31, a negative electrode 32, and an electrolytic solution 29 located between the positive electrode and the negative electrode. At least one of the positive electrode 31 and the negative electrode 32 contains an electricity storage material containing a polymerization product having a tetrachalcogenofulvalene structure in a repeat unit of a main chain.
    Type: Application
    Filed: July 31, 2009
    Publication date: April 21, 2011
    Inventors: Nobuhiko Hojo, Yu Ohtsuka, Takakazu Yamamoto, Takahisa Shimizu, Takayuki Sasaki, Tomoaki Yanagida
  • Publication number: 20110086267
    Abstract: A polymer having a structure represented by the following general formula (1), wherein in general formula (1), Ph is a phenyl group; X is an oxygen atom, a sulfur atom, a selenium atom or a tellurium atom; and R1 and R1 each independently contains at least one selected from the group consisting of a chained saturated hydrocarbon group, a chained unsaturated hydrocarbon group, a cyclic saturated hydrocarbon group, a cyclic unsaturated hydrocarbon group, a phenyl group, a hydrogen atom, a hydroxyl group, a cyano group, an amino group, a nitro group and a nitroso group. The chained saturated hydrocarbon group, the chained unsaturated hydrocarbon group, the cyclic saturated hydrocarbon group and the cyclic unsaturated hydrocarbon group each contain at least one selected from the group consisting of a carbon atom, an oxygen atom, a nitrogen atom, a sulfur atom and a silicon atom.
    Type: Application
    Filed: July 31, 2009
    Publication date: April 14, 2011
    Inventors: Takakazu Yamamoto, Hiroki Fukumoto, Takahisa Shimizu, Tomoaki Yanagida, Yu Ohtsuka, Nobuhiko Hojo
  • Patent number: 7910287
    Abstract: An embodiment of the present invention is a relief printing plate for forming a high-definition pattern by a printing method, having a convex part comprising a resin layer, a base material supporting the convex part and a light reflection controlling layer, the light wave length being in range of 400 nm-800 nm, and the layer being between the convex part and the base material.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: March 22, 2011
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Hironori Kawakami, Koji Takeshita, Takahisa Shimizu, Nahoko Inokuchi, Kazunobu Irie
  • Publication number: 20100079064
    Abstract: One embodiment of the present invention is a method for manufacturing an organic electroluminescence element wherein the organic electroluminescence has a substrate, a partition wall on the substrate, a pixel on the substrate sectioned by the partition wall, an organic luminescent layer on the pixel, forming an under-layer on the entire surface of a luminescent area including the inside surface of the pixel and the upper surface of the partition wall and forming the organic luminescent layer by coating an ink which includes an organic luminous material by a printing method on the surface of the under-layer.
    Type: Application
    Filed: June 16, 2009
    Publication date: April 1, 2010
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Syohei Kimura, Koji Takeshita, Takahisa Shimizu
  • Publication number: 20100079063
    Abstract: One embodiment of the present invention is a method for manufacturing an organic EL display panel in which a substrate which has a pixel electrode, a partition wall, a sub pixel which has a short side and a long side sectioned by the partition wall and a pixel including a plurality of the sub pixels are prepared and a first organic layer is formed and printed so as to form a stripe shape in the short side direction of the sub pixel and a second organic layer as a luminescent layer is formed on the sub pixel.
    Type: Application
    Filed: June 10, 2009
    Publication date: April 1, 2010
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Syohei Kimura, Eiichi Kitazume
  • Publication number: 20090108739
    Abstract: A method for manufacturing an organic electroluminescence display includes forming a first electrode, forming an organic light emitting medium layer including an organic light emitting layer on the first electrode, the respective organic light emitting medium layers including respective organic light emitting layers having different life-times in light emitting, and forming a second electrode on the organic light emitting medium layer, wherein the organic light emitting layer having a longer life-time is formed earlier.
    Type: Application
    Filed: September 16, 2008
    Publication date: April 30, 2009
    Applicant: Toppan Printing Co.
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami, Nahoko Inokuchi
  • Publication number: 20090084279
    Abstract: A relief printing plate has a convex part, wherein a top surface of the convex part, which touches a substrate, comprises a resin layer having an affinity for an ink liquid including an organic light emitting material and the convex part or a convex part forming layer including the convex part, which supports the resin layer, comprises an ink repellent layer which has non-affinity for the ink.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Hironori Kawakami, Koji Takeshita, Takahisa Shimizu, Nahoko Inokuchi
  • Patent number: 7485023
    Abstract: A method of manufacturing an organic electroluminescent device is disclosed. The method includes forming a first electrode or a substrate; forming a partition wall adjacent to the first electrode; and forming an organic luminous layer on the first electrode by relief printing method.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: February 3, 2009
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Yifan Qian
  • Publication number: 20080311284
    Abstract: One embodiment of the present invention is a method for manufacturing an organic electroluminescence device, including forming an organic light emitting layer by a relief printing method, the method including transferring an organic light emitting material ink from an ink supplier to a printing plate, and subsequently transferring the organic light emitting material ink from the printing plate to a substrate, wherein a solvent of the organic light emitting material ink comprises a solvent having a vapor pressure over 500 Pa at 20-25 degrees Celsius, and wherein the time between the reception of the ink by the printing plate and the transfer of the ink to the substrate is equal to or less than 5 seconds.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 18, 2008
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Nahoko Inokuchi, Tomoaki Fukuhara, Hiroshi Matsuzawa
  • Publication number: 20080299295
    Abstract: As finer patterns of relief printing plates are produced, the spacing between the convex portions of the relief printing plates decreases, and a sufficient relief depth, which is the depth of a concave portions between the convex portions, cannot be obtained. In one embodiment of the present invention, there is provided a relief printing plate for use when a coating liquid is supplied to convex portions of the relief printing plate, the coating liquid located on the convex portions is printed, and a pattern composed of the coating liquid is formed on the print surface, this relief printing plate comprising a metal support having convex portions and a resin layer disposed on the convex portions of the support.
    Type: Application
    Filed: September 21, 2007
    Publication date: December 4, 2008
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Hironori Kawakami, Koji Takeshita, Takahisa Shimizu, Nahoko Inokuchi
  • Publication number: 20080206673
    Abstract: An embodiment of the present invention is a relief printing plate for forming a high-definition pattern by a printing method, having a convex part comprising a resin layer, a base material supporting the convex part and a light reflection controlling layer, the light wave length being in range of 400 nm-800 nm, and the layer being between the convex part and the base material.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 28, 2008
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Hironori Kawakami, Koji Takeshita, Takahisa Shimizu, Nahoko Inokuchi, Kazunobu Irie
  • Publication number: 20070281575
    Abstract: It is intended to provide an organic EL display panel production method which enables formation of light emitting layers by a relief printing process in an organic EL display having RGB arrangement in a delta alignment or a mosaic alignment. A relief plate (resin relief plate) 50 in this invention has projections 202 in the form of dots corresponding to arrangement of pixels P for one of the colors in accordance with the pixels P of which R, G, and B are arranged in the delta alignment. A resin relief plate 16 has projections 202 in the form of dots corresponding to the pixels P for any one of the colors among the pixels P corresponding to R, G, and B, and an area S2 of an apical surface of each of the projections 202 is 70% to 90% of an area S1 of a bottom surface of an aperture P1 of each of the pixels P.
    Type: Application
    Filed: April 3, 2007
    Publication date: December 6, 2007
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Nahoko Inokuchi
  • Publication number: 20070216295
    Abstract: The invention is intended to provide an organic EL element provided with a film capable of preventing immigration of impurity even when a material such as dope type PEDOT/PSS of which impurity can immigrate to a light emitting layer is used and a production method therefore, the film of the organic EL element being excellent in uniformity and easily formed. In the organic EL element, a first electrode, an organic light emitting medium layer, and a second electrode are formed on a substrate; the organic light emitting medium layer at least includes a positive hole transport layer and an organic light emitting layer; and a second positive hole transport layer having positive hole mobility in the range of 1×10?4 to 1 cm2/v·s is formed between the positive hole transport layer and the organic light emitting layer.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 20, 2007
    Applicant: Toppan Printing Co., Ltd.
    Inventor: Takahisa Shimizu
  • Publication number: 20070071884
    Abstract: An organic luminescent layer of an organic electroluminescence element can be formed by relief printing using a plastic plate comprised a metal base material. A manufacturing method of an organic electroluminescent element including a substrate, a first electrode, an organic luminescent layer and a second electrode is provided, the method including forming an organic luminescent layer in upside of the first electrode by relief printing with the use of an organic luminescence ink, wherein the ink comprises an organic luminescent material dissolved in an organic solvent, and wherein a plastic plate having projection patterns comprising a resin on a metal base material is used in the relief printing.
    Type: Application
    Filed: August 24, 2006
    Publication date: March 29, 2007
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Nahoko Kadota
  • Publication number: 20070031587
    Abstract: An organic electroluminescence device manufacturing method is disclosed wherein the device comprises a substrate, a first and second electrode, and an organic luminous layer. The method comprising: hardening of a water development type photosensitive resin to form a plastic plate; and printing organic luminescent ink on a substrate by relief printing method with the use of the plastic plate, wherein the organic luminescent ink is an ink capable of scattering organic luminescent material in an organic solvent.
    Type: Application
    Filed: March 8, 2006
    Publication date: February 8, 2007
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami
  • Publication number: 20060280859
    Abstract: By reason of a manufacture cost cut, the following method to produce plural organic electroluminescent device from a large-scale substrate was invented. A manufacturing method of organic electroluminescent device comprised of a substrate, first electrode on the substrate, partition wall between the first electrodes, organic luminous media layer including organic luminous layer on the first electrode and second layer which faces the first electrode, wherein the organic luminous media layer is sandwiched between the first and the second electrode, the method comprising: preparing ink which material for at least one organic luminous media layer is dissolved in solvent, forming organic luminous media layer by printing the ink on every divided plural domains of the substrate.
    Type: Application
    Filed: May 22, 2006
    Publication date: December 14, 2006
    Inventors: Takahisa Shimizu, Kenichi Oota
  • Publication number: 20060269657
    Abstract: An organic luminescence ink is disclosed. The ink includes a solvent and organic luminescent material dissolved in the solvent. The solvent comprises solvent A having a boiling point more than 70 degrees Celsius and under 180 degrees Celsius and solvent B having a boiling point more than 180 degrees Celsius and less than or equal to 270 degrees Celsius. An amount of solvent B in sum of an amount of solvent A and solvent B is more then 5% by weight and less than or equal to 30% by weight.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 30, 2006
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami
  • Publication number: 20060257686
    Abstract: In functional inks for relief printing concerning the present invention, contents of compositions of functional layers can be 1.0-2.5 wt %. In addition, viscosity of functional ink for relief printing can be 15-50 mPa·s. Therefore, each functional layer can be formed with uniformity and reasonable thickness.
    Type: Application
    Filed: May 10, 2006
    Publication date: November 16, 2006
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami
  • Publication number: 20060220537
    Abstract: A method of manufacturing an organic electroluminescent device is disclosed. The method comprises forming a first electrode or a substrate; forming a partition wall adjacent to the first electrode; and forming an organic luminous layer on the first electrode by relief printing method.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 5, 2006
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Yifan Qian