Patents by Inventor Yasushi Koizumi

Yasushi Koizumi 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).

  • Applicator for the use of sanitary goods such as a tampon, etc.
    Patent number: 5135475
    Abstract: A tampon has an absorbent material and an accommodation barrel for accommodating the absorbent material therein. The accommodation barrel includes an absorbent material accommodating portion for accommodating therein the absorbent material and a clamping portion continuously connected with the absorbent material accommodating portion and has a flexible property. The clamping portion is formed as a large diameter portion which is provided with a ring on an outer circumferential edge thereof.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: August 4, 1992
    Assignee: Kao Corporation
    Inventors: Takashi Nakanishi, Yasushi Koizumi, Masayuki Kuboi, Yasushi Nakafukushima, Yoshinori Takahashi, Tatsuya Yamamoto, Yoshihiro Sakai