Patents by Inventor Akihiko Sakata

Akihiko Sakata 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).

  • Publication number: 20040043239
    Abstract: One object of the present invention is to provide a polyethylene-base resin laminate having excellent properties in the transparency, blocking resistance, flexibility and the like, exhibiting heat resistance high enough to withstand a sterilization at 121° C.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 4, 2004
    Inventors: Toshiharu Iwasaki, Tomohiko Ezaki, Akihiko Sakata, Isao Otake
  • Patent number: 6682517
    Abstract: A plural-compartment medical container, wherein said container is a pouch formed of a synthetic resin and has an open member at least one end of upper and lower ends thereof for filling or withdrawing a drug solution, and the inner surface of said container is divided into plural compartments in a liquid-tight manner by a blocking seal portion, characterized in that when a melting temperature curve of a resin of said blocking seal portion is determined using differential scanning calorimeter, a height ratio (h2/h1) between a height (h1) of a peak at a temperature of main melting peak and a height (h2) of said temperature curve at a temperature of 115° C., is within a range of 0.05 to 0.4, the blocking seal portion thereof peeling well by pushing operation to the pouch, provides a plural-compartment medical container having excellent flexibility and transparency.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: January 27, 2004
    Assignees: Showa Denko K.K., Showa Denko Plastic Products Co., Ltd.
    Inventors: Tomohiko Ezaki, Isao Ohtake, Hitoshi Saitoh, Akihiko Sakata, Takayuki Mizuo
  • Patent number: 6484874
    Abstract: One object of the present invention is to provide a medical container with multiple chambers and a production method thereof, where respective medicaments housed in a plurality of chambers can be separated without fail until performing the infusion and when performing the infusion, the respective medicaments can be easily mixed while keeping the sterile state.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: November 26, 2002
    Assignee: Showa Denko Plastic Products Co., Ltd.
    Inventors: Yohei Kageyama, Akihiko Sakata, Manabu Nakamura, Junji Yotsuyanagi