Patents by Inventor Akihiko Kanno

Akihiko Kanno 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)-[7-(2-cyanoacetamido)cephalosporanic]amide derivatives having antibiotic utility
    Patent number: 4758558
    Abstract: Disclosed herein are the derivatives of substituted cephalosporanic acid represented by the formula (I): ##STR1## wherein R.sup.1 represents a 4-pyridylthiomethyl group, an alpha-aminobenzyl group, a cyanomethyl group or a 1-tetrazolylmethyl group; R.sup.2 represents a hydrogen atom, an acetoxy group or a (5-methyl-1,3,4-thiadiazol-2-yl)thio group; R.sup.3 represents a hydrogen atom, a hydroxyl group, a carbamoyl group, an alkyl group having 1 to 4 carbon atoms or --(CONH).sub.m (CH.sub.2).sub.n --COOH wherein m is 0 or 1, n is 0, 1 or 2 and the carboxyl group may have been converted to a salt or an ester thereof; p is 0, 1 or 2 and X represents carbon atom or nitrogen atom, and antibiotics comprising the derivatives of substituted cephalosporanic acid represented by the formula (I).
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: July 19, 1988
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akihiko Kanno, Shigeaki Muto, Koichi Niimura, Takao Ando, Takayoshi Fujii, Masahiko Fujii, Takao Furusho, Chikao Yoshikumi
  • Cephalosporin derivative, process for producing the same and pharmaceutical composition containing the same
    Patent number: 4734409
    Abstract: Disclosed herein are a cephalosporin derivative represented by the formula (I): ##STR1## wherein R.sup.1 represents a halogenoalkyl group, a salt and ester thereof, a process for producing the same, and a pharmaceutical composition and an antibacterial agent comprising the same.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: March 29, 1988
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Chikao Yoshikumi, Takao Furusho, Isamu Motokawa, Yoko Onishi, Akihiko Kanno, Takayoshi Fujii, Takao Ando
  • Derivative of cephalosporanic acid and pharmaceutical composition comprising the same
    Patent number: 4690920
    Abstract: Disclosed herein are a derivative of a substituted cephalosporanic acid, represented by the formula (I): ##STR1## wherein p is 0, 1 or 2 and R.sup.1 represents a hydrogen atom, a hydroxyl group, a carbamoyl group, an alkyl group having 1 to 4 carbon atoms or --(CONH).sub.m (CH.sub.2).sub.n --COOH wherein m is 0 or 1; n is 0, 1 or 2 and the carboxyl group may have been converted to the salt or the ester thereof, and an antibiotic comprising a derivative of substituted cephalosporanic acid represented by the formula (I).
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: September 1, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akihiko Kanno, Shigeaki Muto, Koichi Niimura, Takao Ando, Takayoshi Fujii, Masahiko Fujii, Takao Furusho, Chikao Yoshikumi
  • Pivaloyloxymethyl 7-.beta.-[2-(2-amino-4-thiazolyl)-2-methoxyiminoacetamido]-3-(2-amino-1, 3-thiadiazolyl-5-thiomethyl)-3-cepheme-4-carboxylate and pharmaceutical composition containing the same
    Patent number: 4681877
    Abstract: Disclosed herein are 7-beta-[2-(2-amino-4-thiazolyl)-2-methoxyiminoacetamido]-3-(2-amino-1,3,4- thiadiazolyl-5-thiomethyl)-3-cepheme-4-carboxylic acid, salts thereof and pivaloyloxymethyl ester thereof, and a pharmaceutical composition containing the same as an active ingredient.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: July 21, 1987
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Takao Ando, Takayoshi Fujii, Akihiko Kanno, Yoko Onishi, Isamu Motokawa, Takao Furusho, Chikao Yoshikumi
  • Penicillin derivative
    Patent number: 4540689
    Abstract: A penicillin derivative having an antibacterial activity similar to a penicillin antibiotic in a living body without affecting the intestinal bacterial colonies, a process for preparing the derivative and a pharmaceutical composition in a dosage unit form containing the derivative as an active ingredient are disclosed.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: September 10, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Kouichi Niimura, Takao Ando, Akihiko Kanno, Takao Furusho, Chikao Yoshikumi
  • Cephalosporin derivative
    Patent number: 4496561
    Abstract: A cephalosporin derivative having an antibacterial activity similar to a cephalosporin antibiotic in living bodies without affecting the intestinal bacterial colonies, a method for preparing the derivative and a pharmaceutical composition in a dosage unit form containing the derivative as an active ingredient are disclosed.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: January 29, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Kouichi Niimura, Takao Ando, Akihiko Kanno, Takao Furusho, Chikao Yoshikumi
  • Penicillin derivative
    Patent number: 4496574
    Abstract: A penicillin derivative having an antibacterial activity similar to a penicillin antibiotic in a living body without affecting the intestinal bacterial colonies, a process for preparing the derivative and a pharmaceutical composition in a dosage unit form containing the derivative as an active ingredient are disclosed.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: January 29, 1985
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Shigeaki Muto, Kouichi Niimura, Takao Ando, Akihiko Kanno, Takao Furusho, Chikao Yoshikumi