Patents by Inventor Yukio Saeki

Yukio Saeki 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).

  • Method for accelerated curing of phenolic resin adhesives
    Patent number: 4109057
    Abstract: A method for accelerated curing of phenolic resin adhesives comprises adding powdered green tea to a thermosetting phenolic resin at about ambient temperature.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: August 22, 1978
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Nobutaka Nakamura, Yukio Saeki, Shigeru Nemoto
  • Preparation of densified wood impregnated with phenolic resins
    Patent number: 4031276
    Abstract: Improved preparation of densified wood reinforced with a resole phenolic resin is accomplished by impregnating wood with a solution of the resin in the presence of about 0.6 to 4 parts of methanol, acetone, or mixture thereof per part by weight of the solids content of the resin under a pressure of about 10-50 Kgs/cm.sup.2 and thereafter drying and curing the resin-impregnated wood. The resultant product has an enhanced content of cured resin and greater bending strength than densified wood prepared by conventional resin impregnating techniques.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: June 21, 1977
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Nobutaka Nakamura, Yukio Saeki
  • Method for preventing gelation of thermosetting resins in waste water
    Patent number: 4006081
    Abstract: A method for preventing the gelation of thermosetting resin glues or varnishes in waste wash water characterized by mixing urea in to the waste water which principally contains resorcinol resin obtained by reacting resorcinol with formaldehyde or phenol modified resorcinol resin obtained by reacting phenol, resorcinol and formaldehyde.
    Type: Grant
    Filed: December 31, 1974
    Date of Patent: February 1, 1977
    Assignee: Sumitomo Durez Company, Ltd.
    Inventors: Nobutaka Nakamura, Yukio Saeki