Patents by Inventor Akihiro Iihara

Akihiro Iihara 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: 10538075
    Abstract: The present invention provides a silicone composition for use in a printing plate, the composition including at least: a SiH group-containing compound; a compound represented by the following general formula (I); a compound represented by the following general formula (II); and/or a compound represented by the following general formula (III); wherein Ds in the compound represented by the general formula (I), Gs in the compound represented by the general formula (II) and Js in the compound represented by the general formula (III) each represents an acetoxy group or a dialkyloximino group: A-Si-(D)3 (I) (wherein in the general formula (I), A represents a non-hydrolyzable functional group capable of undergoing a hydrosilylation reaction with a SiH group); E-Si-(G)3 (II) (wherein in the general formula (II), E represents a non-hydrolyzable functional group incapable of undergoing a hydrosilylation reaction with a SiH group); and Si-(J)4 (III).
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: January 21, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Akihiro Iihara, Yasunori Kuse, Seiichiro Murase
  • Publication number: 20190099995
    Abstract: The present invention provides a silicone composition for use in a printing plate, the composition including at least: a SiH group-containing compound; a compound represented by the following general formula (I); a compound represented by the following general formula (II); and/or a compound represented by the following general formula (III); wherein Ds in the compound represented by the general formula (I), Gs in the compound represented by the general formula (II) and Js in the compound represented by the general formula (III) each represents an acetoxy group or a dialkyloximino group: A-Si-(D)3 (I) (wherein in the general formula (I), A represents a non-hydrolyzable functional group capable of undergoing a hydrosilylation reaction with a SiH group); E-Si-(G)3 (II) (wherein in the general formula (II), E represents a non-hydrolyzable functional group incapable of undergoing a hydrosilylation reaction with a SiH group); and Si-(J)4 (III).
    Type: Application
    Filed: March 15, 2016
    Publication date: April 4, 2019
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akihiro IIHARA, Yasunori KUSE, Seiichiro MURASE
  • Publication number: 20180043678
    Abstract: The present invention provides a planographic printing plate original including, in the order mentioned below: a substrate; and at least a heat sensitive layer and a silicone rubber layer provided on the substrate, wherein the heat sensitive layer contains a polyurethane having a carbonate structure. The present invention also provides a method of producing a planographic printing plate using the same, and a method of producing a printed matter. An object of the present invention is to provide: a planographic printing plate original which has an excellent halftone dot reproducibility and printing durability, and in which the occurrence of scumming can be prevented; a method of producing a planographic printing plate using the same; and a method of producing a printed matter.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 15, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yuki KASE, Akihiro IIHARA, Seiichiro MURASE
  • Publication number: 20170320312
    Abstract: An object of the invention is to provide a water-based lithographic printing method that is excellent in printing quality and environmental aspects. The invention concerns a method of producing a printed material, including the steps of: allowing a water-based ink to adhere to a surface of a heat sensitive layer of a lithographic printing plate having a surface on which an ink repelling layer and the heat sensitive layer exist; and transferring the adhering water-based ink directly or via a blanket to a printing substrate.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 9, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Takejiro INOUE, Seiichiro MURASE, Yuichi TSUJI, Akihiro IIHARA
  • Publication number: 20170232775
    Abstract: An object of the present invention is to provide a waterless lithographic printing plate precursor that sufficiently repels ink, which tends to adhere to non-imaging areas, and maintains its repelling effects, and a printing method using a waterless lithographic printing plate obtained from the waterless lithographic printing plate precursor. The following are provided: a lithographic printing plate precursor having at least a heat sensitive layer and an ink repellent layer, wherein the ink repellent layer contains an ink repelling, the ink repellent liquid having a boiling point of not less than 150° C.
    Type: Application
    Filed: November 10, 2015
    Publication date: August 17, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yasunori KUSE, Akihiro IIHARA, Seiichiro MURASE
  • Patent number: 9199444
    Abstract: A waterless planographic printing plate precursor has, on a substrate, at least a photosensitive layer or heat sensitive layer and a silicone rubber layer, which is a waterless planographic printing plate precursor, wherein 1) a color pigment and a pigment dispersant are contained in the silicone rubber layer, 2) the a content of color pigment is 0.1 to 20 vol % in the silicone rubber layer, and 3) the pigment dispersant contains an organic complex compound including a metal and an organic compound.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 1, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
  • Patent number: 9164378
    Abstract: The objective is to provide a direct drawing-type waterless lithographic printing original plate which is highly sensitive and is not susceptible to formation of blisters, namely a direct drawing-type waterless lithographic printing original plate which has a wide latitude. Provided is a direct drawing-type waterless lithographic printing original plate which has at least a heat-sensitive layer and a silicone rubber layer on a substrate in this order. The direct drawing-type waterless lithographic printing original plate is characterized in that the heat-sensitive layer contains non-photosensitive particles and the average particle diameter of the non-photosensitive particles is not less than ½ of the average film thickness of a portion of the heat-sensitive layer where the non-photosensitive particles are not present.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: October 20, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Akihiro Iihara, Yasunori Kuse, Yuta Shuto, Satoshi Yoshida, Kazuki Goto
  • Publication number: 20140045120
    Abstract: A waterless planographic printing plate precursor has, on a substrate, at least a photosensitive layer or heat sensitive layer and a silicone rubber layer, which is a waterless planographic printing plate precursor, wherein 1) a color pigment and a pigment dispersant are contained in the silicone rubber layer, 2) the a content of color pigment is 0.1 to 20 vol % in the silicone rubber layer, and 3) the pigment dispersant contains an organic complex compound including a metal and an organic compound.
    Type: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
  • Patent number: 8617793
    Abstract: A waterless planographic printing plate precursor is capable of plate inspection without a post-dyeing step, capable of being handled in a light room and excellent in coloring matter fixing in silicone rubber layer. The waterless planographic printing plate precursor has at least a photosensitive layer or heat sensitive layer and a silicone rubber layer on a substrate, which is a waterless planographic printing plate precursor characterized in that a color pigment is contained in the above-mentioned silicone rubber layer, and it is possible to obtain a more excellent effect by further incorporating, in the above-mentioned silicone rubber layer, a pigment dispersant containing an organic complex compound comprising of a metal and an organic compound. Furthermore, when aluminum and/or titanium is contained as the above-mentioned metal, a more excellent effect can be obtained.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: December 31, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
  • Publication number: 20130298794
    Abstract: A directly imageable waterless lithographic printing plate precursor includes at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order, wherein the heat sensitive layer contains at least a novolac resin, a polyurethane and a light-to-heat conversion material, and also has a phase separation structure including at least a phase containing a novolac resin and a phase containing a polyurethane. The directly imageable waterless lithographic printing plate precursor has high sensitivity and is less likely to cause blister, that is, having wide latitude.
    Type: Application
    Filed: January 13, 2012
    Publication date: November 14, 2013
    Applicant: Toray Industries, Inc.
    Inventors: Yuta Shuto, Akihiro Iihara, Kazuki Goto, Satoshi Yoshida
  • Publication number: 20130273473
    Abstract: The objective is to provide a direct drawing-type waterless lithographic printing original plate which is highly sensitive and is not susceptible to formation of blisters, namely a direct drawing-type waterless lithographic printing original plate which has a wide latitude. Provided is a direct drawing-type waterless lithographic printing original plate which has at least a heat-sensitive layer and a silicone rubber layer on a substrate in this order. The direct drawing-type waterless lithographic printing original plate is characterized in that the heat-sensitive layer contains non-photosensitive particles and the average particle diameter of the non-photosensitive particles is not less than ½ of the average film thickness of a portion of the heat-sensitive layer where the non-photosensitive particles are not present.
    Type: Application
    Filed: September 16, 2011
    Publication date: October 17, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akihiro Iihara, Yasunori Kuse, Yuta Shuto, Satoshi Yoshida, Kazuki Goto
  • Patent number: 8298749
    Abstract: Provided is a directly imageable waterless planographic printing plate precursor that comprises at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order and has a high sensitivity not only immediately after the precursor production but also after the passage of time. In the directly imageable waterless planographic printing plate precursor, the heat sensitive layer contains liquid bubbles filled with a liquid with a boiling point in the range of 210 to 270° C. Also provided is a production method for making a directly imageable waterless planographic printing plate precursor.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 30, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Akihiro Iihara, Yuta Shuto, Yutaka Ishida
  • Publication number: 20110300486
    Abstract: A directly imageable waterless planographic printing plate precursor includes at least a heat sensitive layer and a silicone rubber layer formed on a substrate in this order and has a high sensitivity not only immediately after the precursor production but also after the passage of time. In the directly imageable waterless planographic printing plate precursor, the heat sensitive layer contains liquid bubbles filled with a liquid with a boiling point in the range of 210 to 270° C. A production method comprises applying a solution of a heat sensitive layer composition containing a solvent with a solubility parameter of 17.0 (MPa)1/2 or less and a boiling point in the range of 210 to 270° C. and a solvent with a solubility parameter of more than 17.
    Type: Application
    Filed: March 31, 2010
    Publication date: December 8, 2011
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akihiro Iihara, Yuta Shuto, Yutaka Ishida
  • Publication number: 20100075250
    Abstract: A waterless planographic printing plate precursor is capable of plate inspection without a post-dyeing step, capable of being handled in a light room and excellent in coloring matter fixing in silicone rubber layer. The waterless planographic printing plate precursor has at least a photosensitive layer or heat sensitive layer and a silicone rubber layer on a substrate, which is a waterless planographic printing plate precursor characterized in that a color pigment is contained in the above-mentioned silicone rubber layer, and it is possible to obtain a more excellent effect by further incorporating, in the above-mentioned silicone rubber layer, a pigment dispersant containing an organic complex compound comprising of a metal and an organic compound. Furthermore, when aluminum and/or titanium is contained as the above-mentioned metal, a more excellent effect can be obtained.
    Type: Application
    Filed: November 1, 2007
    Publication date: March 25, 2010
    Applicant: Toray Industries, Inc.
    Inventors: Akihiro Iihara, Mitsuru Suezawa, Masuichi Eguchi
  • Publication number: 20030175619
    Abstract: The invention is a directly imageable waterless planographic printing plate precursor comprising: at least a heat insulating layer, a heat sensitive layer, and an ink repellent layer that are provided in that order on a substrate, wherein a transmittance of the heat insulating layer for a light having a wavelength within a range of 400 to 650 nm is at most 15% over the entire range of the wavelength. The invention provides a directly imageable waterless planographic printing plate precursor that allows measurement of the dot area ratio on the printing plate with a densitometer or the like.
    Type: Application
    Filed: February 26, 2003
    Publication date: September 18, 2003
    Applicant: TORAY Industries, Inc.
    Inventors: Akihiro Iihara, Ken Kawamura, Mitsuru Suezawa, Kimikazu Nagase
  • Patent number: 6074797
    Abstract: The present invention relates to a precursor of waterless planographic printing plates, in which at least a photosensitive layer and a silicone rubber layer are laminated on a substrate in this order, characterized in that said photosensitive layer contains a quinonediazide group-containing polyurethane resin and furthermore, preferably, contains a light-heat converting material.The present invention can provide a precursor of waterless planographic printing plates, which is improved in both image reproducibility and printing durability, and which can be applied to both the method of obtaining a waterless planographic printing plate by ordinary image exposure and the method of obtaining a waterless planographic printing plate by laser irradiation.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: June 13, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Mitsuru Suezawa, Akihiro Iihara, Norimasa Ikeda