Patents by Inventor Etsuyo Watanabe

Etsuyo Watanabe 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).

  • .alpha.-3 sialyltransferase
    Patent number: 5494790
    Abstract: There are provided a novel .alpha.2.fwdarw.3 sialyltransferase expressed by a cloned gene from animal cells, a cDNA encoding the .alpha.2.fwdarw.3 sialyltransferase, a method for detecting or suppressing the expression of an .alpha.2.fwdarw.3 sialyltransferase by use of said cDNA, a recombinant vector containing said cDNA, a cell containing said vector, and their production processes.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: February 27, 1996
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Katsutoshi Sasaki, Etsuyo Watanabe, Tatsunari Nishi, Susumu Sekine, Nobuo Hanai, Mamoru Hasegawa
  • .alpha.2.fwdarw.3 sialyltransferase
    Patent number: 5384249
    Abstract: There are provided a novel .alpha.2.fwdarw.3 sialyltransferase expressed by a cloned gene from animal cells, a cDNA encoding the .alpha.2.fwdarw.3 sialyltransferase, a method for detecting or suppressing the expression of an .alpha.2.fwdarw.3 sialyltransferase by use of said cDNA, a recombinant vector containing said cDNA, a cell containing said vector, and their production processes.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: January 24, 1995
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Katsutoshi Sasaki, Etsuyo Watanabe, Tatsunari Nishi, Susumu Sekine, Nobuo Hanai, Mamoru Hasegawa