Patents by Inventor Yuichiro Iguchi

Yuichiro Iguchi 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).

  • Thiol methacrylate or acrylate resin obtained by polymerizing a thiol methacrylate or acrylate compound
    Patent number: 5247041
    Abstract: A thiol methacrylate or acrylate compound represented by the formula (1) or (2): ##STR1## wherein R.sup.1 is H or CH.sub.3 and X is selected from: ##STR2## wherein R.sup.1 is H or CH.sub.3 and m is an integer of 1 to 4. The thiol methacrylate or acrylate compound gives a resin having a high refractive index, a large Abbe number, and a good hardness and heat resistance, and giving little or no smell at processing.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: September 21, 1993
    Assignee: Toray Industries, Inc.
    Inventors: Yuichiro Iguchi, Michio Kimura, Koichiro Oka