Patents by Inventor Takehiro Yoshimatsu

Takehiro Yoshimatsu 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: 8377259
    Abstract: The present invention provides a process for preparing a coated printing paper, comprising the steps of making a base paper from a stuff containing a hardwood-derived mechanical pulp (LMP) and applying a coating solution containing a pigment and an adhesive by an on-machine coater to provide a coating layer, wherein said steps are continuously performed on machine. According to the present invention, coated printing papers having high quality can be efficiently prepared with high runnability.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 19, 2013
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Osamu Kozuka, Koji Kutsuwa, Kazuhiko Ishizuka, Takehiro Yoshimatsu
  • Publication number: 20110180224
    Abstract: The present invention provides a process for preparing a coated printing paper, comprising the steps of making a base paper from a stuff containing a hardwood-derived mechanical pulp (LMP) and applying a coating solution containing a pigment and an adhesive by an on-machine coater to provide a coating layer, wherein said steps are continuously performed on machine. According to the present invention, coated printing papers having high quality can be efficiently prepared with high runnability.
    Type: Application
    Filed: August 7, 2009
    Publication date: July 28, 2011
    Applicant: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Osamu Kozuka, Koji Kutsuwa, Kazuhiko Ishizuka, Takehiro Yoshimatsu
  • Publication number: 20110003079
    Abstract: An object of the present invention is to provide a process for preparing a high-quality coated paper with high runnability while preventing damage to the elastic roll surface of the soft calender encountered during high-speed operation. The present invention provides a process for preparing a coated paper, comprising the steps of: making a base paper; applying a coating solution containing a pigment and an adhesive on the base paper to form one or more pigment coating layers; and surface-treating the pigment coating layers by a soft calender, said papermaking and coating steps being performed at an operating speed of 1300 m/min; wherein said surface-treating step comprises treating the outermost one of the pigment coating layers using a soft calender comprising a metallic roll and an elastic roll with at least two or more nips and wherein the elastic roll has a Shore D hardness of 90-96 and the metallic roll surface temperature at the first nip is less than 130° C.
    Type: Application
    Filed: February 4, 2009
    Publication date: January 6, 2011
    Inventors: Takehiro Yoshimatsu, Yuji Abe, Daisuke Sakakibara, Hironori Asano
  • Publication number: 20040179075
    Abstract: An inkjet recording medium for plain paper wherein a coating solution having a water-soluble polymer, sizing agent and synthetic resin emulsion as main ingredients is coated or impregnation-coated on at least one surface of a base paper. The synthetic resin emulsion is an emulsion manufactured using 1.5 wt parts or less of a surfactant relative to 100 wt parts of a polymerizing monomer. In this inkjet recording medium, bleeding and feathering do not occur, so the medium is suitable also for multi-color recording.
    Type: Application
    Filed: December 3, 2003
    Publication date: September 16, 2004
    Inventors: Yuji Ozawa, Akinobu Chatani, Takehiro Yoshimatsu, Noriko Kumazawa