Patents by Inventor Takao Otomaru
Takao Otomaru 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: 10744742Abstract: A thermal transfer sheet including a dye layer and a transfer layer on a substrate. The transfer layer has a protective layer and an adhesive layer containing two or more resin components. One of the resin components is a copolymer of a reactive ultraviolet absorbing agent and an acrylic monomer. In the copolymer, the copolymerization ratio of the reactive ultraviolet absorbing agent is in the range of 10% or more and 50% or less on a molar ratio basis and the copolymerization ratio of the acrylic monomers is in the range of 50% or more and 90% or less on a molar ratio basis. The content of the copolymer of the reactive ultraviolet absorbing agent and the acrylic monomer is specified in the range of 50% by mass or more and 90% by mass or less on the basis of the total mass of the adhesive layer.Type: GrantFiled: September 22, 2017Date of Patent: August 18, 2020Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yoshimasa Kobayashi, Takao Otomaru
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Patent number: 8841356Abstract: Disclosed is an ink composition which has superior storage stability, is resistant to bleeding, has good fixability to paper, and enables printing of a clear image. The ink composition includes a pigment dispersion containing a surface-treated pigment and a resin emulsion, wherein the surface-treated pigment is obtained by binding a functional group, having a larger calcium index than a calcium index of 1,2,3-benzenetricarboxylic acid, to the surface of a pigment; and the resin emulsion is adapted so that an aqueous solution containing 1 mass % of a solid content of the resin emulsion has a conductance of 300 ?S/cm or less.Type: GrantFiled: September 30, 2010Date of Patent: September 23, 2014Assignee: DNP Fine Chemicals Co., Ltd.Inventors: Satoshi Shioda, Tatsuro Ishitobi, Takao Otomaru, Rumiko Matsuo, Masaki Inumaru, Yukio Sugita, Fumie Yamazaki, Naoki Shiraishi, Mitsuyoshi Tamura, Ataru Miyata
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Patent number: 8814335Abstract: An inkjet recording method characterized by adhering a receiving solution (A) to at least areas on a recording medium (R) which are to be printed with an inkjet ink (I) or the whole surface of the medium (R) which is to be printed, said receiving solution (A) being a solution obtained by dissolving (inclusive of dispersing) one or more metal salts (S) selected from among at least divalent, calcium salts, magnesium salts, nickel salts, aluminum salts, boron salts, and zinc salts and one or more resins (B) having hydrophilic groups in an aqueous solvent in such amounts that the concentrations of the metal salts (S) and the resins (B) fall within the range of 0.005 to 2.0 mol/l and within the range of 0.5 to 20 mass % respectively, and then applying the inkjet ink (1) to areas where the metal salts are present in an adhered state to carry out printing.Type: GrantFiled: March 27, 2012Date of Patent: August 26, 2014Assignee: DNP Fine Chemicals Co., Ltd.Inventors: Masaki Inumaru, Takao Otomaru, Yukio Sugita, Mitsuyoshi Tamura, Fumie Yamazaki, Naoki Shiraishi, Yoshiki Nozaka
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Publication number: 20140132661Abstract: Provided is an inkjet recording method which minimizes blur and achieves excellent fixing to a recoding medium. This inkjet recording method is characterized by adhering a receiving solution (A) to at least areas on a recording medium (R) which are to be printed with an inkjet ink (I) or the whole surface of the medium (R) which is to be printed, said receiving solution (A) being a solution obtained by dissolving (inclusive of dispersing) one or more metal salts (S) selected from among at least divalent, calcium salts, magnesium salts, nickel salts, aluminum salts, boron salts, and zinc salts and one or more resins (B) having hydrophilic groups in an aqueous solvent in such amounts that the concentrations of the metal salts (S) and the resins (B) fall within the range of 0.005 to 2.0 mol/l and within the range of 0.5 to 20 mass % respectively, and then applying the inkjet ink (I) to areas where the metal salts are present in an adhered state to carry out printing.Type: ApplicationFiled: March 27, 2012Publication date: May 15, 2014Applicants: DNP FINE CHEMICALS CO., LTD., DAI NIPPON PRINTING CO., LTD.Inventors: Yoshiki NOZAKA, Fumie YAMAZAKI, Mitsuyoshi TAMURA, Yukio SUGITA, Takao OTOMARU, Masaki INUMARU, Naoki SHIRAISHI
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Publication number: 20140055520Abstract: An inkjet recording method which suppresses feathering and color bleeding and is excellent in fixability to a recording medium. The inkjet recording method includes the steps of applying an ink-receiving solution prepared by dissolving in an aqueous solvent at least one metal salt having a water solubility of 0.1 mol/l or more, selected from calcium salts, magnesium salts, nickel salts and zinc salts having a valence of 2 or more, to at least the surface to be printed by using an inkjet ink or the entire surface of a recording medium; and printing on the metal salt adhered part by using the inkjet ink comprising at least a pigment, a resin emulsion and an aqueous solvent containing a surfactant. Further, a phosphorus-containing group having at least one P—O or P?O bond is bound to the surface of the pigment.Type: ApplicationFiled: December 26, 2011Publication date: February 27, 2014Applicants: DNP FINE CHEMICALS CO., LTD., DAI NIPPON PRINTING CO., LTD.Inventors: Masaki Inumaru, Satoshi Shioda, Takao Otomaru, Yukio Sugita, Mitsuyoshi Tamura, Fumie Yamazaki, Naoki Shiraishi
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Publication number: 20120308786Abstract: Disclosed is an ink composition which has superior storage stability, is resistant to bleeding, has good fixability to paper, and enables printing of a clear image. The ink composition includes a pigment dispersion containing a surface-treated pigment and a resin emulsion, wherein the surface-treated pigment is obtained by binding a functional group, having a larger calcium index than a calcium index of 1,2,3-benzenetricarboxylic acid, to the surface of a pigment; and the resin emulsion is adapted so that an aqueous solution containing 1 mass % of a solid content of the resin emulsion has a conductance of 300 ?S/cm or less.Type: ApplicationFiled: September 30, 2010Publication date: December 6, 2012Inventors: Satoshi Shioda, Tatsuro Ishitobi, Takao Otomaru, Rumiko Matsuo, Eiichi Miyata, Ataru Miyata, Masaki Inumaru, Yukio Sugita, Fumie Yamazaki, Naoki Shiraishi, Mitsuyoshi Tamura