Patents by Inventor Shusaku Mandai

Shusaku Mandai 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: 8691892
    Abstract: This invention provides a chaff molding which is excellent in a compressive strength. Said chaff molding comprises a chaff and a polyvinyl alcohol-based resin having a 1,2-diol structure as a side chain.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: April 8, 2014
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Kenji Kikuchi, Mitsuo Shibutani, Shusaku Mandai
  • Publication number: 20100261830
    Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.
    Type: Application
    Filed: November 26, 2008
    Publication date: October 14, 2010
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Mitsuo Shibutani, Masahiro Saito, Shusaku Mandai, Takaaki Murahashi
  • Patent number: 7592046
    Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: September 22, 2009
    Assignee: Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Shusaku Mandai, Yoshiaki Hirai
  • Publication number: 20090075105
    Abstract: Disclosed is a resin composition containing a polyvinyl alcohol resin (A) having an active hydrogen-containing functional group, and an N-amino poly(acrylamide)-based resin (B) having a (meta)acrylic acid structural unit represented by the general formula (1) below and an acrylamide structural unit represented by the general formula (2) below. This resin composition has high crosslinking rate, and enables to obtain a crosslinked product having excellent waterproof. (In the formula, R represents a hydrogen or a methyl group, and X represents a hydrogen or an alkali metal.
    Type: Application
    Filed: February 20, 2007
    Publication date: March 19, 2009
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hiroyuki Ono, Shusaku Mandai, Katsumi Edasawa
  • Publication number: 20080280129
    Abstract: This invention provides a chaff molding which is excellent in a compressive strength. Said chaff molding comprises a chaff and a polyvinyl alcohol-based resin having a 1,2-diol structure as a side chain.
    Type: Application
    Filed: April 25, 2008
    Publication date: November 13, 2008
    Applicant: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Kenji Kikuchi, Mitsuo Shibutani, Shusaku Mandai
  • Publication number: 20070031614
    Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.
    Type: Application
    Filed: October 5, 2006
    Publication date: February 8, 2007
    Inventors: Shusaku Mandai, Yoshiaki Hirai
  • Publication number: 20040209014
    Abstract: The present invention relates to a recording medium, particularly a recording medium for ink jet printing, in which the surface strength of the coating surface is strong, ink blurring when printing hardly occurs and water resistance after printing is excellent and a process for preparing the same. That is, the present invention is a recording medium having a coating layer comprising (A) a polyvinyl alcohol resin containing an acetoacetic ester group, (B) a zirconium compound and (C) an inorganic powder on the surface of a substrate. Also, the present invention is a process for preparing a recording medium which comprises a step of preparing a coating solution comprising a polyvinyl alcohol resin containing an acetoacetic ester group (A), a zirconium compound (B) and an inorganic powder (C) and a step of applying the coating solution to the surface of a substrate.
    Type: Application
    Filed: February 20, 2004
    Publication date: October 21, 2004
    Applicant: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Shusaku Mandai, Yoshiaki Hirai