Patents by Inventor Nobuyasu Sasaguri

Nobuyasu Sasaguri 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).

  • Publication number: 20080160232
    Abstract: The present invention relates to an ink jet recording sheet comprising a sheet-like substrate, and an ink receiving layer formed on at least one surface of the sheet-like substrate, the ink receiving layer containing an amorphous silica having an average particle size 0.5 to 10 ?m and a binder, the sheet-like substrate being subjected to a calendering treatment after forming the ink receiving layer thereon, thereby white-paper gloss of the recording sheet measured at 75° in accordance with JIS Z 8741 is from 30 to 90%.
    Type: Application
    Filed: January 4, 2006
    Publication date: July 3, 2008
    Applicant: OJI PAPER CO., LTD.
    Inventors: Nobuyasu Sasaguri, Takashi Okazaki, Syunsuke Shioi
  • Patent number: 6942919
    Abstract: A coated paper sheet having a coating layer formed on one or two surfaces of a substrate paper sheet and containing a pigment and a binder, wherein the pigment includes kaolin particles having an average particle size of 0.3 to 1.5 ?m and an aspect ratio L/W (L: major axis, W: minor axis of the particles) in the range of 5 to 50; the binder contains (a) a copolymer having a glass transition temperature Tg of 10 to 60° C. and a single phase structure and/or a synthetic polymeric compound having a core-shell composite structure; the coating layer surfaces have a 75 degree specular glossiness of 50% or more; and the air permeability of the coated paper sheet is 7000 seconds or less, is useful as printing sheet especially for gravure printing.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: September 13, 2005
    Assignee: Oji Paper Co., Ltd.
    Inventors: Tomofumi Tokiyoshi, Shota Amasaki, Masaaki Shimizu, Nobuyasu Sasaguri, Kenji Yanagisawa
  • Publication number: 20040151923
    Abstract: There are provided electrophotographic transfer sheets comprising a substrate sheet which is a laminate comprising a thermoplastic resin film layer (A) adhesively laminated on at least one side of a core material layer (B) made of a paper substrate or a thermoplastic polyester-based resin film, and a toner receiving layer composed mainly of a conductive metal oxide coated on the surface of the thermoplastic resin film layer (A), characterised by having a Clark stiffness of at least 12 cm in the cross direction as measured according to JIS P8143.
    Type: Application
    Filed: January 26, 2004
    Publication date: August 5, 2004
    Applicant: OJI PAPER CO., LTD
    Inventors: Takashi Okazaki, Jiro Shimizu, Tomofumi Tokiyoshi, Nobuyasu Sasaguri
  • Publication number: 20030152752
    Abstract: A recording sheet having a recording layer formed on a substrate sheet (for example, a paper sheet, synthetic resin film or synthetic paper sheet), and including a pigment and a binder which contains a cross-linking reaction product of styrene-acrylic copolymer which preferably has carboxyl groups and is soluble or dispersible in water, with a cross-linking agent, for example, a polyamidepolyamine compound, has excellent resistance to both water and organic solvents and is useful for both dot matrix printers and thermal transfer printers.
    Type: Application
    Filed: September 24, 2002
    Publication date: August 14, 2003
    Applicant: OJI PAPER CO., LTD.
    Inventors: Tomofumi Tokiyoshi, Nobuyasu Sasaguri, Tetsuya Tanaka
  • Publication number: 20030059601
    Abstract: A coated paper sheet having a coating layer formed on one or two surfaces of a substrate paper sheet and containing a pigment and a binder, wherein the pigment includes kaolin particles having an average particle size of 0.3 to 1.5 &mgr;m and an aspect ratio L/W (L: major axis, W: minor axis of the particles) in the range of 5 to 50; the binder contains (a) a copolymer having a glass transition temperature Tg of 10 to 60° C. and a single phase structure and/or a synthetic polymeric compound having a core-shell composite structure; the coating layer surfaces have a 75 degree specular glossiness of 50% or more; and the air permeability of the coated paper sheet is 7000 seconds or less, is useful as printing sheet especially for gravure printing.
    Type: Application
    Filed: March 27, 2002
    Publication date: March 27, 2003
    Applicant: OJI Paper Co., Ltd.
    Inventors: Tomofumi Tokiyoshi, Shota Amasaki, Masaaki Shimizu, Nobuyasu Sasaguri, Kenji Yanagisawa