Patents by Inventor Masahiro Tatsuo

Masahiro Tatsuo 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).

  • Variable speed planetary transmission
    Patent number: 4346623
    Abstract: A variable speed transmission including a transfer section for establishing operating direction, a variable speed planetary transmission section arranged in operating alignment with the transfer section, and a range section for effectively multiplying the number of speed ratios established by the variable speed planetary transmission section. The transfer section includes a pair of planetary gear train, sun gears of which are coupled with a power input shaft and the variable speed planetary transmission section comprises four sets of planetary gear trains, all sun gears of which are coupled with a center shaft which is arranged in alignment with the power input shaft.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: August 31, 1982
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventor: Masahiro Tatsuo