Patents by Inventor Shin-Ichi Saitoh

Shin-Ichi Saitoh 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).

  • Disperse dyeing with polyglycerine anionic emulsifiers and/or polyaryl polyglycol ethers
    Patent number: 4101273
    Abstract: A synthetic fiber material is continuously dyed or printed by contacting with a dye bath comprising a water-insoluble dye and at least one member of polyoxyethylene derivatives, such as ##STR1## AND GLYCERIN DERIVATIVES, SUCH AS ##STR2## and subjecting the resulting fiber material to a dry or wet heat treatment, whereby the fiber material is dyed or printed with a deep color and with prevention of migration of the dye.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: July 18, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takafumi Matsuba, Ryozo Kuriyama, Shin-Ichi Saitoh, Yoshio Ishitsuka