Patents by Inventor Reimei Ishikawa

Reimei Ishikawa 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).

  • Antimicrobial preparation
    Patent number: 4880796
    Abstract: An antimicrobial preparation of D-7-[.alpha.-(4-hydrooxy-6-methylnicotinamido)-4-hydroxyphenylacetamido]-3 -(1-methyltetrazol-5-yl)thiomethyl-.DELTA..sup.3 -cephem-4-sodium carboxylate (hereinafter referred to as "Compound A" of enhanced stability is disclosed, which comprises a microbially effective amount of Compund A and a stabilizer selected from the class consisting of benzoic acid, sodium benzoate and nicotinamide.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: November 14, 1989
    Assignees: Sumitomo Chemical Company, Limited, Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yoshiya Yamahira, Yoshiko Okuzawa, Keiji Fujioka, Shigeji Sato, Reimei Ishikawa