Patents by Inventor Nahoko Inokuchi

Nahoko Inokuchi 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: 8231933
    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: Grant
    Filed: June 16, 2008
    Date of Patent: July 31, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Koji Takeshita, Takahisa Shimizu, Hironori Kawakami, Nahoko Inokuchi, Tomoaki Fukuhara, Hiroshi Matsuzawa
  • Publication number: 20120138904
    Abstract: An organic electroluminescence display includes a substrate, a first electrode layer formed on the substrate, a first light emitting layer formed on the first electrode layer and emitting light with a first wavelength, a second light emitting layer formed to overlap at least a part thereof with the first light emitting layer and emitting light with a second wavelength longer than the first wavelength, and a second electrode layer formed on the first or second light emitting layer.
    Type: Application
    Filed: September 19, 2008
    Publication date: June 7, 2012
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami, Nahoko Inokuchi
  • Patent number: 8137147
    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: Grant
    Filed: September 16, 2008
    Date of Patent: March 20, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami, Nahoko Inokuchi
  • 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: 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
  • 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