Patents by Inventor Shoji Oi

Shoji Oi 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).

  • Collagen powder and/or collagen-derived powder, and production method for the same
    Patent number: 9617298
    Abstract: Disclosed is a collagen powder and/or a collagen derivative powder, which are obtained by dispersing in a hydrophilic organic solvent a crude collagen precipitate which comprises 12 to 50% by mass of a collagen precipitate and/or a collagen derivative precipitate having an average particle size of 1 to 1,000 ?m, recovering solids and then drying the solids. By dispersing the crude collagen precipitate in the hydrophilic organic solvent, the resulting precipitates can be dehydrated, so that drying of the thus obtained solids can be done by air-drying. In addition, the resulting collagen powder and/or collagen derivative powder exhibit excellent solubility due to an increased specific surface area and also have excellent ease of handling with the average particle size being 8 to 1,000 ?m.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 11, 2017
    Assignee: NIPPI, INCORPORATED
    Inventors: Keisuke Tanaka, Takayuki Ogura, Shunji Hattori, Koichi Matsuda, Yoshikatsu Kobayashi, Shoji Oi
  • COLLAGEN POWDER AND/OR COLLAGEN-DERIVED POWDER, AND PRODUCTION METHOD FOR THE SAME
    Publication number: 20130190479
    Abstract: Disclosed is a collagen powder and/or a collagen derivative powder, which are obtained by dispersing in a hydrophilic organic solvent a crude collagen precipitate which comprises 12 to 50% by mass of a collagen precipitate and/or a collagen derivative precipitate having an average particle size of 1 to 1,000 ?m, recovering solids and then drying the solids. By dispersing the crude collagen precipitate in the hydrophilic organic solvent, the resulting precipitates can be dehydrated, so that drying of the thus obtained solids can be done by air-drying. In addition, the resulting collagen powder and/or collagen derivative powder exhibit excellent solubility due to an increased specific surface area and also have excellent ease of handling with the average particle size being 8 to 1,000 ?m.
    Type: Application
    Filed: July 29, 2011
    Publication date: July 25, 2013
    Applicant: NIPPI, INCORPORATED
    Inventors: Keisuke Tanaka, Takayuki Ogura, Shunji Hattori, Koichi Matsuda, Yoshikatsu Kobayashi, Shoji Oi