Patents by Inventor Masao Takagi

Masao Takagi 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).

  • Apparatus for controlling agricultural tractor
    Patent number: 4450927
    Abstract: An agricultural tractor in which two sets of pedals are mounted on the tractor body forwardly and rearwardly with the rearward pedals at a higher position than the forward pedals. A seat can be selectively fixed at a rearward position opposed to the forward pedals or a forward position opposed to the rearward pedals, the forward position of the seat being higher than the rearward position. A steering wheel can be fixed to either a forward or rearward position corresponding to the position of the seat.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: May 29, 1984
    Assignee: Kubota, Ltd.
    Inventors: Kazuo Hirata, Masao Takagi
  • Method for the prevention of slaking of dolomite bricks
    Patent number: 4157621
    Abstract: A method for preventing installed dolomite refractory and magnesia-dolomite refractory from slaking by feeding a dry air into a converter or the like after it was installed with said dolomite refractory and said magnesia-dolomite refractory, circulating the dry air in and through the converter while always maintaining the interior of the converter or the like under positive pressure.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: June 12, 1979
    Assignees: Shinagana Refractories Co. Ltd., Sumito Metal Industries, Ltd.
    Inventors: Sadame Asano, Masahiro Hayase, Hiromasa Tabuchi, Masao Takagi, Koichi Kasai, Koei Hoshino, Suejiro Fukuya, Hiroaki Hirahara
  • Electronic game housing
    Patent number: D263157
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: February 23, 1982
    Assignee: Takatoku Toys Company, Limited
    Inventor: Masao Takagi