Patents by Inventor Masakazu Umeda

Masakazu Umeda 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).

  • Oxidizing catalyzer
    Patent number: 4116884
    Abstract: Catalyst systems for oxidizing carbon monoxide and hydrocarbon gases are described. These catalyst systems may be incorporated into catalyzers for use in oxidizing waste or exhaust carbon monoxide and unburned hydrocarbon gases emanating from internal combustion engines.
    Type: Grant
    Filed: August 2, 1977
    Date of Patent: September 26, 1978
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tadayoshi Hayashi, Yoshiaki Takagi, Tetsuo Toizume, Masakazu Umeda
  • Electric vacuum cleaner
    Patent number: D387517
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: December 9, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toru Abe, Masakazu Umeda
  • Combined dish washing machine and drying machine
    Patent number: D424257
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: May 2, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masakazu Umeda, Kazuya Takahashi