Patents by Inventor Atsuo Aoyama

Atsuo Aoyama 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).

  • Protease
    Patent number: 5496710
    Abstract: A modified protease is disclosed, which is a mutant of the thermostable neutral protease wherein at least one amino acid residue of SEQ ID NO: 1 selected from the group consisting of the 144th leucine residue, the th aspartic acid residue, the 187th glutamic acid residue and the 227th asparagine residues is replaced with an amino acid residue other than said amino acid.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: March 5, 1996
    Assignees: Sagami Chemical Research Center, Holland Sweetner Company V.O.F.
    Inventors: Hiromasa Nagao, Takashi Yoneya, Toshio Miyake, Atsuo Aoyama, Ken-ichi Kai, Shun-ichi Kidokoro, Yoichiro Miki, Kimiko Endo, Akiyoshi Wada