Patents by Inventor Naoto Osako

Naoto Osako 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).

  • Briquetted fertilizer for forest fertilization
    Patent number: 4304589
    Abstract: A briquetted fertilizer for forest fertilization having a volume of from 5 to 100 cm.sup.3 which comprises compression molded granular isobutylidene diurea and heavy mineral oil.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: December 8, 1981
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Seiichi Kamo, Tetzuo Watanabe, Noriyasu Kuroda, Naoto Osako, Yoshinori Kaneko
  • Process for preparing prilled porous ammonium nitrate
    Patent number: 3966853
    Abstract: A prilled ammonium nitrate containing 2 to 5 percent by weight water obtained by prilling an aqueous solution of 93 to 98 percent by weight ammonium nitrate is dried by: lowering the drying temperature of the ammonium nitrate to a temperature less than the III--IV crystalline transition temperature of ammonium nitrate at least once when the water content of the prilled ammonium nitrate is 0.3 to 1.5 percent by weight in the drying step; further drying at a temperature higher than the III--IV transition temperature; and adding an anti-caking agent to the dried prilled ammonium nitrate. The dried, prilled ammonium nitrate obtained is useful as an ammonium nitrate fuel oil explosive.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: June 29, 1976
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Naoto Osako, Katsumi Kozima, Hiroshi Shimizu, Kazumi Kimura