Patents by Inventor Naoki Tahara

Naoki Tahara 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).

  • Novel cellulose-producing bacteria
    Publication number: 20010044138
    Abstract: Novel cellulose-producing bacteria including one capable of producing of a bacterial cellulose having a weight-average degree of polymerization in terms of polystyrene of 1.6×104 or above, one capable of producing a bacterial cellulose containing a small amount of the fraction with low degrees of polymerization, one producing a Bingham polysaccharide as a by-product, and one producing a small amount of water-soluble polysaccharide; a method for the production of bacterial cellulose, which comprises culturing these cellulose-producing bacteria; and bacterial cellulose thus obtained.
    Type: Application
    Filed: May 1, 2001
    Publication date: November 22, 2001
    Applicant: Bio-Polymer Research Co., Ltd.
    Inventors: Kunihiko Watanabe, Hiroshi Takemura, Mari Tabuchi, Naoki Tahara, Hiroshi Toyosaki, Yasushi Morinaga, Takayasu Tsuchida, Hisato Yano, Fumihiro Yoshinaga
  • Gene, group of genes, and novel &bgr;-gluclosidase
    Patent number: 6316251
    Abstract: An object of the present invention is to provide novel genes and gene group involved in cellulose synthesis of microorganisms. The present invention relates to a gene group encoding cellulase, cellulose synthase complex, &bgr;-glucosidase and the like, and to novel &bgr;-glucosidase.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: November 13, 2001
    Assignee: Bio-Polymer Research Co., Ltd.
    Inventors: Naoto Tonouchi, Takayasu Tsuchida, Fumihiro Yoshinaga, Naoki Tahara, Hisato Yano, Takahisa Hayashi
  • Cellulose-producing bacteria
    Patent number: 6140105
    Abstract: Novel cellulose-producing bacteria including one capable of producing of a bacterial cellulose having a weight-average degree of polymerization in terms of polystyrene of 1.6.times.10.sup.4 or above, one capable of producing a bacterial cellulose containing a small amount of the fraction with low degrees of polymerization, one producing a Bingham polysaccharide as a by-product, and one producing a small amount of water-soluble polysaccharide; a method for the production of bacterial cellulose, which comprises culturing these cellulose-producing bacteria; and bacterial cellulose thus obtained.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: October 31, 2000
    Assignee: Bio-Polymer Research Co., Ltd.
    Inventors: Kunihiko Watanabe, Hiroshi Takemura, Mari Tabuchi, Naoki Tahara, Hiroshi Toyosaki, Yasushi Morinaga, Takayasu Tsuchida, Hisato Yano, Fumihiro Yoshinaga
  • Bacterial cellulose concentrate and method for the treatment of the concentrate
    Patent number: 6069136
    Abstract: The purpose of the present invention is to provide a simple and economical method for the production of BC having improved properties such as dispesibility, suspensibility and viscosity.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: May 30, 2000
    Assignee: Bio-Polymer Research Co., Ltd.
    Inventors: Naoki Tahara, Kunihiko Watanabe, Nobuya Hioki, Yasushi Morinaga, Tadahiko Hajouda, Hiroshi Miyashita, Akira Shibata, Hiroshi Ougiya
  • Cellulose-producing bacteria
    Patent number: 5962277
    Abstract: Novel cellulose-producing bacteria including one capable of producing of a bacterial cellulose having a weight-average degree of polymerization in terms of polystyrene of 1.6.times.10.sup.4 or above, one capable of producing a bacterial cellulose containing a small amount of the fraction with low degrees of polymerization, one producing a Bingham polysaccharide as a by-product, and one producing a small amount of water-soluble polysaccharide; a method for the production of bacterial cellulose, which comprises culturing these cellulose-producing bacteria; and bacterial cellulose thus obtained.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: October 5, 1999
    Assignee: Bio-Polymer Research Co., Ltd.
    Inventors: Kunihiko Watanabe, Hiroshi Takemura, Mari Tabuchi, Naoki Tahara, Hiroshi Toyosaki, Yasushi Morinaga, Takayasu Tsuchida, Hisato Yano, Fumihiro Yoshinaga