Patents by Inventor Tasuku Nakajima

Tasuku Nakajima 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).

  • Genes of cell wall-degrading enzymes derived from aspergillus, and method for the production the enzymes
    Patent number: 7285407
    Abstract: The purpose of the present invention is to isolate a gene encoding novel exo-, or endo-?-1,3-glucanase, to obtain a microorganism having an enhanced expression of said gene and to degrade ?-1,3-glucan to its low molecular weight form by means of said enzymes. The present invention relates to a gene or DNA encoding novel enzymes having ?-1,3-glucanase activity (exo-, or endo-?-1,3-glucanase), a recombinant expression vector comprising them, a microorganism having the recombinant expression vector, the novel enzymes having ?-1,3-glucanase activity, and a method for the production of said enzymes.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: October 23, 2007
    Assignees: National Institute of Advanced Industrial Science and Technology, National Institute of Technology and Evaluation
    Inventors: Masayuki Machida, Motoaki Sano, Misao Sunagawa, Tasuku Nakajima, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara
  • Method of degrading plastic and process for producing useful substance using the same
    Publication number: 20060106120
    Abstract: A method of degrading a plastic in the presence of a biosurfactant; a method of degrading a plastic by contacting the plastic with a microorganism; a process for producing a useful substance from a plastic which comprises degrading the plastic by contacting the plastic with a microorganism and further converting the components of the thus degraded plastic with the use of a microorganism; a method of degrading a plastic by contacting the plastic with a microorganism in the coexistence of a biosurfactant and/or a plastic-degrading enzyme and thus degrading the plastic under the action of the microorganism; a transformant microorganism having been recombined with at least one DNA selected from among a DNA containing a gene encoding a surface active substance, a DNA containing a gene encoding a plastic-degrading enzyme and a DNA containing a gene encoding a useful substance; novel genes as described above; and proteins encoded thereby.
    Type: Application
    Filed: September 17, 2003
    Publication date: May 18, 2006
    Applicants: TOHOPKU TECHNO ARCH CO., LTD., National Institute of Advanced Industrial Science and Technology
    Inventors: Keietsu Abe, Katsuya Gomi, Yohei Yamagata, Fumihiko Hasegawa, Hiroshi Maeda, Tasuku Nakajima, Masayuki Machida
  • Novel genes of cell wall-degrading enzymes derived from aspergillus, and method for the production the enzymes
    Publication number: 20050287634
    Abstract: The purpose of the present invention is to isolate a gene encoding novel exo-, or endo-?-1,3-glucanase, to obtain a microorganism having an enhanced expression of said gene and to degrade ?-1,3-glucan to its low molecular weight form by means of said enzymes. The present invention relates to a gene or DNA encoding novel enzymes having ?-1,3-glucanase activity (exo-, or endo-?-1,3-glucanase), a recombinant expression vector comprising them, a microorganism having the recombinant expression vector, the novel enzymes having ?-1,3-glucanase activity, and a method for the production of said enzymes.
    Type: Application
    Filed: March 22, 2005
    Publication date: December 29, 2005
    Applicants: National Institute of advanced Industrial Science and Technology, National Institute of Technology and Evaluation, National Research Institute of Brewing
    Inventors: Masayuki Machida, Motoaki Sano, Misao Sunagawa, Tasuku Nakajima, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara