Patents by Inventor Eiji Sekiya

Eiji Sekiya 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).

  • Freeze-concentrating apparatus for aqueous solutions, ice pillar producing apparatus, and freeze-concentrating method for aqueous solutions
    Patent number: 6367285
    Abstract: In a freeze-concentrating apparatus, an aqueous solution is cooled by a cooling cylinder 22 serving as a heat exchanger for cooling to continuously produce a suspension containing ice crystals. A liquid component is separated and discharged from the suspension to increase the ratio of the ice crystals, and the ice crystals are grown to produce a column-shaped ice cake. The ice cake is cut into an ice pillar of a given length and a concentrated solution is taken out from the ice pillar.
    Type: Grant
    Filed: December 13, 1999
    Date of Patent: April 9, 2002
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Katsuhiko Shinozaki, Hisatoyo Yazawa, Yutaka Yamazaki, Kiyoshi Tenmaru, Yoshio Sugita, Hitoshi Hasegawa, Eiji Sekiya, Akimasa Nakagomi, Heihachi Matsunaga, Yoshihiko Katsuyama