Patents Examined by Eric Grives
  • Microorganism resistant to nicotinic acid analogue and production of biotin
    Patent number: 5693504
    Abstract: A microorganism resistant to a nicotinic acid analogue, which has a plasmid containing part or whole of a biotin operon; and a process for producing biotin, which comprises culturing a microorganism described above in a medium to produce and accumulate biotin in the medium, and collecting biotin.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: December 2, 1997
    Assignees: Takeda Chemical Industries, Ltd., Shiseido Company, Limited
    Inventors: Naoyuki Kanzaki, Hiroyuki Kimura, Junji Matsui, Kazuo Nakahama, Ohji Ifuku