Patents by Inventor Ryonosuke Muneyuki

Ryonosuke Muneyuki 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).

  • Fabric insecticide
    Patent number: 4983391
    Abstract: An insecticide for protecting a fibrous material from the damage by an insect, which comprises a carbamic ester of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, each a hydrogen atom or a lower alkyl group and R.sub.3 is a lower alkyl group as an active ingredient.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: January 8, 1991
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Ryonosuke Muneyuki, Hiroyuki Kanamaru
  • Fabric insecticide
    Patent number: 4912137
    Abstract: An insecticide which comprises an oxalic ester of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, each a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group but at least one of them is a C.sub.1 -C.sub.4 alkyl group.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: March 27, 1990
    Assignee: S. T. Chemical Co., Ltd.
    Inventors: Ryonosuke Muneyuki, Hiroyuki Kanamaru
  • Process for producing 6-aminopenicillanic acid and 6-aminopenicillanic acid S-oxide
    Patent number: 4370414
    Abstract: A process for producing 6-aminopenicillanic acid and 6-aminopenicillanic acid S-oxide by means of enzymes produced by microbes belonging to Arthrobacter genus, especially Arthrobacter cremorum and Arthrobacter flagellum.
    Type: Grant
    Filed: October 6, 1980
    Date of Patent: January 25, 1983
    Assignee: Shionogi & Co., Ltd.
    Inventors: Takashi Mitsugi, Ryonosuke Muneyuki, Yoshiharu Wakisaka, Kenzo Koizumi, Eiji Kondo
  • Enzymatic synthesis of .beta.-lactam antibacterials
    Patent number: 4340672
    Abstract: Penicillins and cephalosporins can be synthesized by the action of an acylase on a penicillin or cephalosporin nucleus amine as substrate and an ester (I) of the following formula as the acyl source: ##STR1## (wherein RCO is an acyl group in penicillin or cephalosporin side chains;X is a hydrogen atom, lower alkyl group or hydroxy-lower alkyl group;Y is a hydrogen atom or a lower alkyl group; and n is a positive integer).The novel acyl source (I) is also disclosed.
    Type: Grant
    Filed: September 19, 1980
    Date of Patent: July 20, 1982
    Assignee: Shionogi & Co., Ltd.
    Inventors: Eiji Kondo, Takashi Mitsugi, Tamio Fujiwara, Ryonosuke Muneyuki