Patents by Inventor Hiroyuki Shirogane
Hiroyuki Shirogane 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).
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Patent number: 8039040Abstract: A method for the formation of a luminescent layer having a uniform thickness in a desired pattern and an organic electroluminescent device that can realize high-quality display and is highly reliable. The luminescent layer is formed by providing a blanket having a resin film having a surface tension of not less than 35 dynes/cm as a surface layer and an ink for a luminescent layer, having a viscosity (ink temperature 23° C.) in the range of 5 to 200 cP as measured at a shear rate of 100/sec, and containing a solvent having a surface tension of not more than 40 dynes/cm and a boiling temperature in the range of 150 to 250° C., filling the ink into cells in a gravure form, allowing the blanket to receive the ink from the cells, and transferring the ink on the blanket onto a luminescent layer forming face.Type: GrantFiled: May 16, 2006Date of Patent: October 18, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Toshihiko Takeda, Shigeru Morito, Masaru Kobayashi, Hiroyuki Shirogane
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Patent number: 7733018Abstract: 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: GrantFiled: September 12, 2003Date of Patent: June 8, 2010Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
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Publication number: 20090081480Abstract: A method for the formation of a luminescent layer having a uniform thickness in a desired pattern and an organic electroluminescent device that can realize high-quality display and is highly reliable. The luminescent layer is formed by providing a blanket having a resin film having a surface tension of not less than 35 dynes/cm as a surface layer and an ink for a luminescent layer, having a viscosity (ink temperature 23° C.) in the range of 5 to 200 cP as measured at a shear rate of 100/sec, and containing a solvent having a surface tension of not more than 40 dynes/cm and a boiling temperature in the range of 150 to 250° C., filling the ink into cells in a gravure form, allowing the blanket to receive the ink from the cells, and transferring the ink on the blanket onto a luminescent layer forming face.Type: ApplicationFiled: May 16, 2006Publication date: March 26, 2009Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Toshihiko Takeda, Shigeru Morito, Masaru Kobayashi, Hiroyuki Shirogane
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Patent number: 7487813Abstract: 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: GrantFiled: May 24, 2006Date of Patent: February 10, 2009Assignee: Dai Nippon Printing Co., Ltd.Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
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Patent number: 7482745Abstract: 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: GrantFiled: October 4, 2005Date of Patent: January 27, 2009Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroyuki Shirogane, Shinichi Handa, Kenichi Kuba, Masaru Kobayashi
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Patent number: 7416687Abstract: There is provided an electroconductive paste composition that can form a coating film having satisfactory thickness by single coating work. The electroconductive paste composition can form bumps having satisfactory height even by a smaller number of times of coating than that in the prior art technique. The electroconductive paste composition comprises a phenolic resin, a melamine resin, an electroconductive powder, a solvent, and a bump forming aid comprising a monohydric alcohol having a terminal methoxy group and having at least one ether bond. The electroconductive paste composition can be used in a printed wiring board.Type: GrantFiled: March 30, 2007Date of Patent: August 26, 2008Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tsutomu Uchimi, Masayuki Nagashima, Masaru Kobayashi, Hiroyuki Shirogane
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Patent number: 7404751Abstract: 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: GrantFiled: September 16, 2003Date of Patent: July 29, 2008Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
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Publication number: 20070228336Abstract: There is provided an electroconductive paste composition that can form a coating film having satisfactory thickness by single coating work. The electroconductive paste composition can form bumps having satisfactory height even by a smaller number of times of coating than that in the prior art technique. The electroconductive paste composition comprises a phenolic resin, a melamine resin, an electroconductive powder, a solvent, and a bump forming aid comprising a monohydric alcohol having a terminal methoxy group and having at least one ether bond. The electroconductive paste composition can be used in a printed wiring board.Type: ApplicationFiled: March 30, 2007Publication date: October 4, 2007Applicant: Dai Nippon Printing Co., Ltd.Inventors: Tsutomu UCHIMI, Masayuki Nagashima, Masaru Kobayashi, Hiroyuki Shirogane
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Publication number: 20070007883Abstract: A gravure plate useful in forming a light-emitting layer and/or a hole-injection layer of an organic light-emitting device has a plurality of cells in the shape of stripes, and non-cell portions between the cells. The proportion of the width b of each cell measured in the direction of printing to the width a of each cell measured in the direction perpendicular to the direction of printing, b/a, is 0.6 or more, and the proportion of the length L of each cell to the length S of each non-cell portion, L/S, is from 0.8 to 100. The length L of each cell is from 10 to 500 ?m, the length S of each non-cell portion is from 2 to 500 ?m, and the depth of the gravure plate is from 20 to 200 ?m.Type: ApplicationFiled: July 7, 2006Publication date: January 11, 2007Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Toshihiko Takeda, Shigeru Morito, Masaru Kobayashi, Hiroyuki Shirogane
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Publication number: 20060255724Abstract: 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: ApplicationFiled: May 24, 2006Publication date: November 16, 2006Applicant: Dai Nippon Printing Co., Ltd.Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
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Patent number: 7080901Abstract: 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: GrantFiled: December 2, 2003Date of Patent: July 25, 2006Assignee: Dai Nippon Printing Co. Ltd.Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
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Publication number: 20060091796Abstract: 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: ApplicationFiled: October 4, 2005Publication date: May 4, 2006Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroyuki Shirogane, Shinichi Handa, Kenichi Kuba, Masaru Kobayashi
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Publication number: 20050269951Abstract: 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: ApplicationFiled: September 12, 2003Publication date: December 8, 2005Applicant: Dai Nippon Printing Co. Ltd.Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
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Publication number: 20050016405Abstract: 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: ApplicationFiled: December 2, 2003Publication date: January 27, 2005Inventors: Kenichi Kuba, Hirofumi Nakajima, Masaru Kobayashi, Hiroyuki Shirogane
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Publication number: 20040135503Abstract: 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: ApplicationFiled: September 16, 2003Publication date: July 15, 2004Applicant: Dai Nippon Prtg Co., Ltd.Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Hiroyuki Shirogane, Masaru Kobayashi
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Publication number: 20040085020Abstract: 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: ApplicationFiled: September 17, 2003Publication date: May 6, 2004Applicant: Dai Nippon Prtg Co., Ltd.Inventors: Shinichi Handa, Hirofumi Nakajima, Kenichi Kuba, Masaru Kobayashi, Hiroyuki Shirogane