Patents by Inventor Hideo Maeba

Hideo Maeba 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).

  • Recombinant .beta.-amylase
    Patent number: 5863784
    Abstract: A recombinant .beta.-amylase which is superior to the original recombinant .beta.-amylase in thermostability has been obtained by a site-directed mutagenesis with the recombinant .beta.-amylase gene coding 531 amino acid residues. Substitutions were MET.sub.181 of said enzyme with Leu, Ser.sub.291 with Ala, Ile.sub.293 with Val, Ser.sub.346 with Pro, Ser.sub.347 with Pro, Gln.sub.348, with Asp and Ala.sub.372 with Ser.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: January 26, 1999
    Assignee: Sapporo Breweries Ltd.
    Inventors: Naohiro Yoshigi, Hideo Maeba, Yukio Okada
  • Recombinant .beta.-amylase
    Patent number: 5688684
    Abstract: A recombinant .beta.-amylase which is superior to the original recombinant .beta.-amylase in thermostability has been obtained by a site-directed mutagenesis with the recombinant .beta.-amylase gene coding 531 amino acid residues. Substitutions were MET.sub.181 of said enzyme with Leu, Ser.sub.291 with Ala, Ile.sub.293 with Val, Ser.sub.346 with Pro, Ser.sub.347 with Pro, Gln.sub.348 with Asp and Ala.sub.372 with Ser.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: November 18, 1997
    Assignee: Sapporo Breweries Ltd.
    Inventors: Naohiro Yoshigi, Hideo Maeba, Yukio Okada