Patents Assigned to Inbionet Corporation
  • Strain for decomposing TMAH, and method of wastewater treatment using the same
    Patent number: 6770470
    Abstract: The present invention describes a wastewater treatment method by a microorganism decomposing Tetramethyl Ammonium Hydroxide (TMAH) which, utilized in etching the surface of silicone chip in semiconductor manufacturing process, is toxic and hard to decompose. The present invention provides novel microorganisms capable of decomposing TMAH. Also, the present invention provides a treatment method for wastewater containing TMAH, using the microorganisms. The present invention is useful in industrial field as an environmental friendly wastewater treatment method by decomposing over 90% of TMAH, one of environmental contamination materials in the wastewater of semiconductor factory.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: August 3, 2004
    Assignee: Inbionet Corporation
    Inventors: Daesang Lee, Mi-Kyoung Lee, Key-Jung Kang, Chul-Soo Shin, Jeong-Hwan Yun, Do-Young Yum, Jung-Ki Lee, Kee-Don Park, Ho-Joon Choi, Bon-Tag Koo
  • Membrane-bound gluconate dehydrogenase, gene sequence encoding the same and production of 2-keto-D-gluconate using transformed recombinant E-coli
    Patent number: 6337199
    Abstract: There is disclosed a novel membrane-bound GADH from Erwinia cypripedii ATCC29267, which is useful for the production of 2KDG at high yields under the condition free of intracellular metabolism. 2KDG is converted at high yields from glucose or D-gluconate by culturing a recombinant cell, free of a ketogluconate metabolism, which harbors a recombinant plasmid containing a gene encoding the GADH.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: January 8, 2002
    Assignees: Korea Institute of Science and Technology, Inbionet Corporation
    Inventors: Do Young Yum, Jae Gu Pan