Patents by Inventor Nobuyuki Higosaki

Nobuyuki Higosaki 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).

  • Granular flocculants and their manufacture
    Patent number: 4195028
    Abstract: Polyvinylimidazoline flocculants are converted to an easily handled granular form by pelletizing with siliceous material and a lower alcohol, or mixture of lower alcohols with esters or ketones, and subsequently drying the pellets.
    Type: Grant
    Filed: January 27, 1978
    Date of Patent: March 25, 1980
    Assignee: Rohm and Haas Company
    Inventors: Wataru Agui, Nobuyuki Higosaki, Koichiro Yamanari, Toshio Furukawa, Hiroshi Kuyama
  • Granular flocculants and their manufacture
    Patent number: 4186167
    Abstract: Polyvinylimidazoline flocculants are converted to an easily handled granular form by pelletizing with siliceous material and a lower alcohol, or mixture of lower alcohols with esters or ketones, and subsequently drying the pellets.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: January 29, 1980
    Assignee: Rohm and Haas Company
    Inventors: Wataru Agui, Nobuyuki Higosaki, Koichiro Yamanari, Toshio Furukawa, Hiroshi Kuyama
  • Fungicidal/algicidal composition for non-medical uses
    Patent number: 4075326
    Abstract: Fungicidal or algicidal agents are provided which consist of a copper salt of an acid which is an unsaturated dibasic acid of the formula ##STR1## wherein R is hydrogen or lower alkyl together with an inorganic copper compound which is sparingly soluble or insoluble in water for example basic copper chloride, basic copper sulfate, basic copper carbonate, copper silicate, cuprous oxide, basic copper phosphate and copper hydroxide. The copper salt and the inorganic copper compound are preferably divided a finely as possible and thereafter mixed. The compositions are of low toxicity, provide a lasting effect and do not give rise generally to secondary noxious products.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: February 21, 1978
    Assignee: Rohm and Haas Company
    Inventors: Hiroshi Kuyama, Nobuyuki Higosaki
  • Fungicidal/algicidal composition for non-medical uses
    Patent number: 3961933
    Abstract: Fungicidal or algicidal agents are provided which consist of a copper salt of an acid which is an unsaturated dibasic acid of the formula.parallel. H--C--COOHwherein R is hydrogen or lower alkyl or is terephthalic acid or isophthalic acid together with an inorganic copper compound which is sparingly soluble or insoluble in water for example basic copper chloride, basic copper sulfate, basic copper carbonate, copper silicate, cuprous oxide, basic copper phosphate and copper hydroxide. The copper salt and the inorganic copper compound are preferably divided as finely as possible and thereafter mixed.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: June 8, 1976
    Assignee: Tokyo Organic Chemical Industries, Inc.
    Inventors: Hiroshi Kuyama, Nobuyuki Higosaki