Patents by Inventor Masaoki Takahashi

Masaoki Takahashi 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).

  • Process and system for recovering top gas from blast furnace or the like
    Patent number: 4315619
    Abstract: A process and system for recovering the top gas from a blast furnace into a gas holder without discharging the top gas into the surrounding atmosphere so as to be utilized for various purposes, thereby overcoming the environmental pollution problems and attaining the energy saving.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: February 16, 1982
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Kazumi Inoue, Shunzo Tono, Masaoki Takahashi
  • Basic dye composition
    Patent number: 4097233
    Abstract: Basic dye compositions suitable for dyeing acid modified polyester and polyacrylonitrile fibrous articles comprise one or more finely dispersed, difficultly soluble dye complex salts composed of one or more water-soluble basic dyes and one or more dispersants capable of being ionically bonded to said basic dye. Appropriate anionic dispersants include a naphthalenesulfonic acid-formaldehyde condensate, a methylnaphthalenesulfonic acid-formaldehyde condensate, lignin sulfonic acid, and an alkyl sulfate.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: June 27, 1978
    Assignee: Nippon Kayaku Co., Ltd.
    Inventors: Masaoki Takahashi, Michio Fumishi