Patents by Inventor Hidetoshi Sawano

Hidetoshi Sawano 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).

  • Manually operated, walk-behind, roadway roller
    Patent number: 6302620
    Abstract: A hand guide roller of the manually steering type. A front support frame for supporting a front roller is directly or indirectly turnably connected with a rear support frame for supporting a rear roller at the center part of a roller car main body through a rolling bearing. A vibration generator in the vicinity of the rolling bearing transmits vibration to at least one of the front roller and the rear roller via the rolling bearing.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: October 16, 2001
    Assignee: Taikyoku Kenki Co., Ltd.
    Inventors: Masafumi Mutsuji, Hidetoshi Sawano