Patents by Inventor Katsahide Saito

Katsahide Saito 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).

  • N-(substituted phenyl and benzyl)abietamides
    Patent number: 4009206
    Abstract: Substituted N-phenyl and N-benzyl abietamide derivatives, including the dehydro-, dihydro-, and tetrahydroabietamide derivatives, are cholesterol lowering agents. The abietamide derivatives, of which N-(2,6-dimethylphenyl)-.DELTA..sup.8 -dihydroabietamide is a typical example, are produced by the reaction of abietic acid, dehydroabietic acid, dihydroabietic acid, tetrahydroabietic acid and/or active derivatives thereof with a substituted aniline or benzylamine.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: February 22, 1977
    Inventors: Hiromu Murai, Katsuya Ohata, Hiroshi Enomoto, Kenji Sempuku, Koji Kitaguchi, Yukio Fujita, Yoshiaki Yoshikuni, Kohei Kura, Katsahide Saito, Tamiki Mori, Yasuo Yasutomi