Patents by Inventor Tutomu Tanaka

Tutomu Tanaka 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).

  • Anti-inflammatory, stable aqueous preparation comprising azulene sodium sulfonate and polyhydric alcohol
    Patent number: 5411993
    Abstract: Aqueous solution preparations which comprise azulene sodium sulfonate as an active ingredient and 20 w/v % or more of a polyhydric alcohol are disclosed wherein azulene sodium sulfonate is stable in the preparation for a prolonged period of time is suited for use in treating inflammation of the oral cavity and/or throat.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: May 2, 1995
    Assignees: Nihon Tenganyaku Kenkyusho Co, Ltd., Meiji Milk Prod. Co., Ltd.
    Inventors: Tokihiko Yamamoto, Tomoyuki Yamaoka, Yoshiaki Yoshida, Kazuo Shin, Hiromitu Aonuma, Tutomu Tanaka
  • Hollow fiber package body and its production
    Patent number: 4430219
    Abstract: A hollow fiber package body for separation of fluid comprising a core and layers of hollow fibers having a selective permeability to fluid arranged around said core, said hollow fiber layers being formed by tape-like bundles of hollow fibers and composed of the arrangement of hollow fibers in nearly parallel relations one another and in a flat state, and said hollow fiber bundles being arranged in multi-layers by intersecting at least at a spot between one end and the other end of said package body.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: February 7, 1984
    Assignee: Tayo Boseki Kabushiki Karsha
    Inventors: Hideshi Kuzumoto, Tutomu Tanaka, Hiroshi Matsumoto