Patents by Inventor Eizi Nagata

Eizi Nagata 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).

  • Ultraviolet-absorbing amino compound and method of making
    Patent number: 4319016
    Abstract: An ultraviolet-absorbing amino compound; a paint containing the aforesaid ultraviolet-absorbing amino compound; and a coated article having on its surface a coated film containing the aforesaid ultraviolet-absorbing amino compound are provided. The ultraviolet-absorbing amino compound is produced by reacting (a) a compound having a light absorption maximum within a wavelength region of 300 to 400 m.mu. and containing a mono-, di- or tetra-hydroxyphenyl group, (b) at least one compound containing a amino group and (c) formaldehyde, in the presence of at least one alcohol. The ultraviolet-absorbing amino compound of this invention is used in resin products which undergo photodegradation by ultraviolet light, for example, paints or molded articles of resins, and is especially effective for use in thermosetting synthetic resin paints.
    Type: Grant
    Filed: September 21, 1979
    Date of Patent: March 9, 1982
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kogyo Kabushiki Kaisha, Mitsui Toatsu Chemicals Incorporated
    Inventors: Moriji Kurobe, Ryusuke Tsuji, Eiichi Imao, Takayuki Masuyama, Eizi Nagata, Kazunori Kamada