Patents by Inventor Taichitro Komeno

Taichitro Komeno 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).

  • 4- or 6-substituted aldosterones, their production and use in immunoassay
    Patent number: 4686179
    Abstract: A substituted aldosterone of the formula: ##STR1## wherein either one of R.sup.1 and R.sup.2 is hydrogen and the other is --S(CH.sub.2).sub.m COR.sup.3 or --OCO(CH.sub.2).sub.n COR.sup.3, provided that when R.sup.1 is hydrogen, R.sup.2 is --S(CH.sub.2).sub.m COR.sup.3 or --OCO(CH.sub.2).sub.n COR.sup.3 and when R.sup.2 is hydrogen, R.sup.1 is --S(CH.sub.2).sub.m COR.sup.3 ; m being an integer from 1 to 3, n being an integer from 1 to 5 and R.sup.3 being hydroxyl, lower alkoxy or a residue of tyramine, tyrosine lower alkyl ester, histamine, histidine, 7-aminoheptanoyltyrosine lower alkyl ester or .beta.-D-galactosidase as optionally iodinated, or its (18-20)-acetal 20,21-ketonide, which is useful as the reagent in determination of aldosterones by radioimmunoassay or enzyme immunoassay.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: August 11, 1987
    Assignee: Shionogi & Co., Ltd.
    Inventors: Masao Kono, Taichitro Komeno, Shoichi Ishihara, Akira Yamauchi, Tadashi Okabayashi
  • 4- or 6-substituted aldosterones
    Patent number: 4623485
    Abstract: A substituted aldosterone of the formula: ##STR1## wherein either one of R.sup.1 and R.sup.2 is hydrogen and the other is --S(CH.sub.2).sub.m COR.sup.3 or --OCO(CH.sub.2).sub.n COR.sup.3, provided that when R.sup.1 is hydrogen, R.sup.2 is --S(CH.sub.2).sub.m COR.sup.3 or --OCO(CH.sub.2).sub.n COR.sup.3 and when R.sup.2 is hydrogen, R.sup.1 is --S(CH.sub.2).sub.m COR.sup.3 ; m being an integer from 1 to 3, n being an integer from 1 to 5 and R.sup.3 being hydroxyl, lower alkoxy or a residue of tyramine, tyrosine lower alkyl ester, histamine, histidine, 7-aminoheptanoyltyrosine lower alkyl ester or .beta.-D-galactosidase as optionally iodinated, or its (18-20)-acetal 20,21-ketonide, which is useful as the reagent in determination of aldosterones by radioimmunoassay or enzyme immunoassay.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: November 18, 1986
    Assignee: Shionogi & Co., Ltd.
    Inventors: Masao Kono, Taichitro Komeno, Shoichi Ishihara, Akira Yamauchi, Tadashi Okabayashi