Patents by Inventor Keiji MAKABE

Keiji MAKABE 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).

  • RESIN FOR USE IN TONER, TONER USING THE RESIN, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS AND METHOD USING THE TONER, AND METHOD OF MANUFACTURING RESIN
    Publication number: 20120295188
    Abstract: A resin for use in toner is provided. The resin comprises an oligomer segment and a soft segment. The oligomer segment comprises a polyhydroxycarboxylic skeleton and an aromatic diol skeleton.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 22, 2012
    Inventors: Yukiko NAKAJIMA, Masahide YAMADA, Taichi NEMOTO, Yoshihiro MORIYA, Yoshitaka YAMAUCHI, Keiji MAKABE, Daiki YAMASHITA, Akiyoshi SABU
  • RESIN FOR TONER, TONER USING THE RESIN, AND DEVELOPMENT AGENT USING THE TONER
    Publication number: 20120231383
    Abstract: A resin for toner containing a polyhydroxy carbonate skeleton and a rigid skeleton.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hideyuki SANTO, Shinya NAKAYAMA, Atsushi YAMAMOTO, Yoshihiro MORIYA, Akiyoshi SABU, Daisuke ASAHINA, Yoshitaka YAMAUCHI, Taichi NEMOTO, Yukiko NAKAJIMA, Daiki YAMASHITA, Masahide YAMADA, Keiji MAKABE
  • METHOD AND APPARATUS FOR PRODUCING TONER
    Publication number: 20120070777
    Abstract: An apparatus for producing a toner, including a liquid droplet-forming unit configured to discharge a toner composition liquid containing at least a resin and a colorant at a uniform discharge speed from a plurality of discharge holes some of which have different shapes from each other to thereby form liquid droplets, and a particle-forming unit configured to solidify the liquid droplets of the toner composition liquid to thereby form particles.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Inventors: Keiji Makabe, Yohichiroh Watanabe, Minoru Masuda, Yasutada Shitara, Yoshihiro Norikane
  • METHOD FOR MANUFACTURING TONER AND TONER
    Publication number: 20110305987
    Abstract: A method for producing toner particles by ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, and solidifying the liquid droplets to produce toner particles. The ejecting is accomplished by applying a vibration to the liquid in a liquid column resonance-generating liquid chamber in which an ejection hole is formed to form a standing wave through liquid column resonance, and ejecting the liquid from the ejection hole which is formed in a region corresponding to an antinode of the standing wave to thereby form the liquid into the liquid droplets. Toner produced by the method.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 15, 2011
    Inventors: Watanabe YOHICHIROH, Yoshihiro NORIKANE, Yasutada SHITARA, Keiji MAKABE