Patents by Inventor Takashi Kuwana

Takashi Kuwana 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).

  • Modified transposon vector and its use
    Patent number: 9175295
    Abstract: A modified transposon vector and a method for introducing a foreign gene into a cell are provided.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: November 3, 2015
    Assignee: THE CHEMO-SERO-THERAPEUTIC RESEARCH INSTITUTE
    Inventors: Kazuyoshi Kaminaka, Hiroaki Maeda, Masaki Hirashima, Ryoichi Kawamura, Junichi Matsuda, Takashi Kuwana
  • MODIFIED TRANSPOSON VECTOR AND ITS USE
    Publication number: 20100281551
    Abstract: A modified transposon vector and a method for introducing a foreign gene into a cell are provided.
    Type: Application
    Filed: July 4, 2006
    Publication date: November 4, 2010
    Inventors: Kazuyoshi Kaminaka, Hiroaki Maeda, Masaki Hirashima, Ryoichi Kawamura, Junichi Matsuda, Takashi Kuwana
  • Method of subculturing culturing avian cells at pH 7.8 or above
    Patent number: 6180400
    Abstract: A method of culturing avian cells in a medium with a pH value of 7.8 or above, whereby avian cells can be subcultured stably for long. Since avian cells have been incapable of subculture heretofore, it has been impossible to effect in vitro cell or gene manipulation therewith. Now that such a manipulation becomes possible by the invention method, the way is opened for the industrial utilization of avian cells in the creation of transgenic birds and the production of vaccines.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: January 30, 2001
    Assignee: Meiji Milk Products, Co., Ltd.
    Inventors: Takashi Kuwana, Koichiro Hashimoto, Akira Nakanishi
  • Method for cryopreservation of primordial germ cells and germ cells
    Patent number: 5759763
    Abstract: Cryopreservation of primordial germ cells and germ cells, in which primordial germ cells or germ cells are separated from bird embryos before meiosis and are then suspended and frozen in a freezing medium containing a cryoprotective agent is useful for the conservation of species of birds, for the protection of rare species which are in danger of extinction and also for the production of transgenic animals, the production of novel animals having gene markers on a cellular level, the production of animals useful as disease models, the production of useful substances by genetic engineering, and the development of test methods for toxicity to germ-line cells.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: June 2, 1998
    Assignee: Director of National Institute of Animal Industry, Ministry of Agriculture, Forestry and Fisheries
    Inventors: Mitsuru Naito, Atsushi Tajima, Yoshiaki Yasuda, Takashi Kuwana