Patents by Inventor Tatsuji Orita

Tatsuji Orita 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).

  • Patent number: 9141014
    Abstract: The present invention is a toner for developing electrostatic charge image containing a wax derived from a plant cholesterol, an electric charge-controlling agent, a coloring agent and a binding resin. The toner is suited for use in the electromagnetic induction-heated fixing system which is capable of heating the heating member up to a predetermined fixing temperature in a short period of time, makes it possible to maintain images free of irregular luster or fouling for extended periods of time and is, further, suited for being fixed at a low temperature.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: September 22, 2015
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Masaki Okubo, Tatsuji Orita, Hideyuki Otsuka, Kenichi Sato, Kanae Hiraishi