Patents by Inventor Kenichi Kuba

Kenichi Kuba 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: 7733018
    Abstract: Disclosed is an EL element in which the rigidity and thermal expansion of the whole EL element is homogeneous, the spacing between film substrates provided respectively on both sides of the EL element can be kept constant, and the whole EL element is flexible. The EL element comprises a first film substrate, an EL part, and a sealant layer, the EL part comprising a first electrode, an EL layer, and a second electrode and being provided on a part of a surface of the first film substrate, the sealant layer being provided to cover the EL part and to cover the EL part-free part of the surface of the first film substrate in such a manner that the sealant layer covering the EL part is contiguous with the sealant layer covering the EL part-free part of the surface of the first film substrate.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: June 8, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
  • Patent number: 7487813
    Abstract: A printing unit includes a plurality of ink supply members for supplying inks different from each other to a printing area or printing area-like portion, and a plurality of detecting systems, each detecting an amount of the corresponding ink accumulated on the printing area or printing area-like portion. A control system controls the plurality of ink supply members to regulate an amount of ink supplied by each of the plurality of ink supply members so as to bring the amount of the corresponding ink accumulated into agreement with a predetermined value.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: February 10, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
  • Patent number: 7482745
    Abstract: A luminescence display panel 20 includes: a flexible transparent substrate 1; a transparent electrode 3 formed on the transparent substrate 1, over a luminescence region and a non-luminescence region; and auxiliary electrodes 5a and 5b formed on the transparent electrode 3, over the non-luminescence region. Electric insulation layers 7a, 7c, and 7d are formed over the non-luminescence region of the transparent electrode 3, so as to cover the auxiliary electrodes 5a and 5b. An organic luminescence part 9 is formed on the transparent electrode, at least over the luminescence region. A rear electrode 11 is formed on the organic luminescence part 9.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: January 27, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Shirogane, Shinichi Handa, Kenichi Kuba, Masaru Kobayashi
  • Patent number: 7404751
    Abstract: The present invention is a method of manufacturing a light emitting display panel, which includes a laminated structure formed by laminating at least a flexible base layer, a first electrode layer, an EL layer, a second electrode layer and a flexible sealing layer in that order. The flexible base layer is provisionally attached to a rigid flat plate, and thereafter supplied to a main manufacturing step of the light emitting display panel. According to the feature, no significant unevenness in the thicknesses of layers formed on or above the flexible base layer is generated. Therefore, a light emitting display panel whose light emitting strength is uniform can be produced.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: July 29, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
  • Publication number: 20060255724
    Abstract: A printing unit include a plurality of ink supply members for supplying inks different from each other to a printing area or printing area-like portion, and a plurality of detecting systems, each detecting an amount of the corresponding ink accumulated on the printing area or printing area-like portion.
    Type: Application
    Filed: May 24, 2006
    Publication date: November 16, 2006
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
  • Patent number: 7080901
    Abstract: A printing unit include a plurality of ink supply members for supplying inks different from each other to a printing area or printing area-like portion, and a plurality of detecting systems, each detecting an amount of the corresponding ink accumulated on the printing area or printing area-like portion.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: July 25, 2006
    Assignee: Dai Nippon Printing Co. Ltd.
    Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
  • Publication number: 20060091796
    Abstract: A luminescence display panel 20 includes: a flexible transparent substrate 1; a transparent electrode 3 formed on the transparent substrate 1, over a luminescence region and a non-luminescence region; and auxiliary electrodes 5a and 5b formed on the transparent electrode 3, over the non-luminescence region. Electric insulation layers 7a, 7c, and 7d are formed over the non-luminescence region of the transparent electrode 3, so as to cover the auxiliary electrodes 5a and 5b. An organic luminescence part 9 is formed on the transparent electrode, at least over the luminescence region. A rear electrode 11 is formed on the organic luminescence part 9.
    Type: Application
    Filed: October 4, 2005
    Publication date: May 4, 2006
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Hiroyuki Shirogane, Shinichi Handa, Kenichi Kuba, Masaru Kobayashi
  • Publication number: 20050269951
    Abstract: Disclosed is an EL element in which the rigidity and thermal expansion of the whole EL element is homogeneous, the spacing between film substrates provided respectively on both sides of the EL element can be kept constant, and the whole EL element is flexible. The EL element comprises a first film substrate, an EL part, and a sealant layer, the EL part comprising a first electrode, an EL layer, and a second electrode and being provided on a part of a surface of the first film substrate, the sealant layer being provided to cover the EL part and to cover the EL part-free part of the surface of the first film substrate in such a manner that the sealant layer covering the EL part is contiguous with the sealant layer covering the EL part-free part of the surface of the first film substrate.
    Type: Application
    Filed: September 12, 2003
    Publication date: December 8, 2005
    Applicant: Dai Nippon Printing Co. Ltd.
    Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
  • Publication number: 20050016405
    Abstract: A printing unit include a plurality of ink supply members for supplying inks different from each other to a printing area or printing area-like portion, and a plurality of detecting systems, each detecting an amount of the corresponding ink accumulated on the printing area or printing area-like portion.
    Type: Application
    Filed: December 2, 2003
    Publication date: January 27, 2005
    Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
  • Publication number: 20040135503
    Abstract: The present invention is a method of manufacturing a light emitting display panel, which includes a laminated structure formed by laminating at least a flexible base layer, a first electrode layer, an EL layer, a second electrode layer and a flexible sealing layer in that order. The flexible base layer is provisionally attached to a rigid flat plate, and thereafter supplied to a main manufacturing step of the light emitting display panel. According to the feature, no significant unevenness in the thicknesses of layers formed on or above the flexible base layer is generated. Therefore, a light emitting display panel whose light emitting strength is uniform can be produced.
    Type: Application
    Filed: September 16, 2003
    Publication date: July 15, 2004
    Applicant: Dai Nippon Prtg Co., Ltd.
    Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
  • Publication number: 20040085020
    Abstract: The present invention is a pattern display apparatus including a rotary or stationary display member; and a flexible organic EL device provided on an outer surface of the rotary or stationary display member, the flexible organic EL device being capable of displaying a character, a figure, a mark and/or a pattern formed by combining some of a character, a figure and a mark. According to the feature, the self-luminescent organic EL device provided on the outer surface of the rotary display member or the stationary display member can be driven by a low voltage to emit bright light and is also capable of emitting light in multiple colors. Therefore, the problems in the conventional pattern display apparatus using light bulbs as light sources do not arise in the pattern display apparatus of the present invention.
    Type: Application
    Filed: September 17, 2003
    Publication date: May 6, 2004
    Applicant: Dai Nippon Prtg Co., Ltd.
    Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Masaru Kobayashi, Hiroyuki Shirogane