Patents by Inventor Mitsutaka Kawazu

Mitsutaka Kawazu 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).

  • Penicillins and processes for preparing the same
    Patent number: 4053609
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or hydroxy, R.sup.2 is a group of the formula: --CO-CH(NH.sub.2)-CH.sub.2 COR.sup.3 or --COCH.sub.2 -CH(NH.sub.2)-COR.sup.3, and R.sup.3 is selected from the group consisting of hydroxy, lower alkylamino, di-lower alkylamino, lower alkoxy and hydroxy-lower alkylamino, or R.sup.3 is amino when R.sup.2 is hydroxy. Several methods of preparing the compound [I] are also disclosed. The compound [I] and a pharmaceutically acceptable salt thereof are useful as antimicrobial agents.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: October 11, 1977
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Mitsutaka Kawazu, Mitsuyoshi Wagatsuma, Masahiko Seto, Toshikazu Miyagishima, Totaro Yamaguchi, Satoshi Ohshima
  • Process for preparing a cyclodextrin derivative
    Patent number: 3974274
    Abstract: A compound of the formula: ##SPC1##Wherein R.sup.2 is mesitylsulfonyl or 2,4,6-triisopropylbenzenesulfonyl and n is an integer of 6 or 7, is reacted with a compound of the formula:R.sup.3 --Hwherein R.sup.3 is amino, methyamino, dimethylamino or azido. When R.sup.3 is azido group, the product thus obtained is further subjected to catalytic hydrogenation. A cyclodextrin derivative of the formula: ##SPC2##Wherein R.sup.1 is amino, methylamino or dimethylamino and n is the same as defined above, is obtained. Said cyclodextrin derivative is useful as a hypolipemic agent.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: August 10, 1976
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Hironori Kurita, Mitsutaka Kawazu, Kohki Takashima