Patents by Inventor Hiromitu Aonuma

Hiromitu Aonuma 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