Patents by Inventor Masaharu Fujimoto

Masaharu Fujimoto 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).

  • 1,4-Dihydropyridine derivatives
    Patent number: 3985758
    Abstract: There are provided novel 1,4-dihydropyridine derivatives, particularly 2,6-dimethyl-4-(3'-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-.beta.-(N-benzyl-N-methylamino)ethyl ester and 5-methyl ester. The 1,4-dihydropyridine derivatives are characterized by cerebral vascular dilator activity.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: October 12, 1976
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Masuo Murakami, Kozo Takahashi, Masaru Iwanami, Masaharu Fujimoto, Tadao Shibanuma, Ryutaro Kawai, Toichi Takenaka
  • Novel N-alkenyltetracycline derivatives
    Patent number: 3951962
    Abstract: N-alkenyltetracycline derivatives, for example, N-[1-methyl-2(2-thienyl)-1-butenyl]tetracycline represented by the formula ##SPC1##The compounds have excellent antibacterial action as compared with tetracycline.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: April 20, 1976
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Masuo Murakami, Masaru Iwanami, Tadao Shibanuma, Masaharu Fujimoto, Norio Sato, Ryutaro Kawai, Kuniichiro Yano