Patents by Inventor Kenzi Thuzita

Kenzi Thuzita 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).

  • Triboelectric stabilized toner for developing electrically charged images and a method for the production thereof
    Patent number: 4623604
    Abstract: Toner for developing electrostatically charged images comprising nuclear particles formed by polymerization, hydrophobic silica, and a resin, wherein said resin is coated on said nuclear particles and said silica is dispersed in said resin. A method for producing said toner is also disclosed, said method comprising polymerizing nuclear particles, dissolving a resin in a solvent, which asserts a lesser solvating action against said nuclear particles than against said resin, to form a solution, dispersing said hydrophobic silica in said solution, mixing said nuclear particles with said dispersion, and drying said mixture.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: November 18, 1986
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroyuki Takagiwa, Kenzi Thuzita, Goichi Yamakawa, Makoto Tomono, Saburo Wakimoto, Sadayasu Miyahara, Tetsumasa Ishida, Yoshihiko Hyosu, Tsuneo Wada