Patents by Inventor Hirokazu Hakata

Hirokazu Hakata 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).

  • ROSIN-MODIFIED PHENOLIC RESIN, PROCESS FOR PRODUCTION THEREOF, VARNISH FOR PRINTING INK, AND PRINTING INK
    Publication number: 20130065990
    Abstract: A rosin-modified phenolic resin, which consists of a reaction product among (a) a rosin that contains a component derived from communic acid in an amount of 0.1 to 0.8 wt %, (b) a condensation product of a phenol and formaldehyde, and (c) a polyol. The rosin-modified phenol resin makes it possible to produce a printing ink which has a good balance among ink performances such as fluidity, emulsification resistance, misting resistance, drying properties, and gloss.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 14, 2013
    Applicant: ARAKAWA CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigeru Kawase, Hirokazu Hakata
  • ROSIN-MODIFIED PHENOL RESIN, MANUFACTURING METHOD THEREOF, AND PRINTING INK
    Publication number: 20120010358
    Abstract: A rosin-modified phenolic resin, comprising a product obtained by reaction of (a) a rosin material containing 0.4 to 10% of dihydroagathic acid, (b) a condensate of a phenolic compound and formaldehyde, and (c) a polyol. The rosin-modified phenol resin is suitable for printing ink applications, and the amount of printing ink mist can reduced without the luster of the printed materials being diminished while maintaining various ink capabilities (dryng properties, emulsifying properties, etc.).
    Type: Application
    Filed: February 17, 2010
    Publication date: January 12, 2012
    Applicant: ARAKAWA CHEMICAL INDUSTRIES, LTD.
    Inventors: Shigeru Kawase, Hirokazu Hakata