Patents by Inventor Koichiro Yamanari

Koichiro Yamanari 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