Patents by Inventor Yasuharu Onogi

Yasuharu Onogi 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).

  • Inkjet medium, ink and inkjet recording method
    Patent number: 8425031
    Abstract: An inkjet medium having a support mainly containing a cellulose pulp, and a coat layer containing a pigment and an adhesive, the coat layer formed on at least one surface of the support, wherein the pigment in the coat layer as an outermost layer contains at least light calcium carbonate, kaolin and gel type silica, and has an average oil absorption of 70 ml/100 g to 120 ml/100 g.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: April 23, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Tohru Ohshima, Kiyofumi Nagai, Yuuji Kojima, Yasuharu Onogi
  • INKJET MEDIUM, INK AND INKJET RECORDING METHOD
    Publication number: 20100196603
    Abstract: An inkjet medium having a support mainly containing a cellulose pulp, and a coat layer containing a pigment and an adhesive, the coat layer formed on at least one surface of the support, wherein the pigment in the coat layer as an outermost layer contains at least light calcium carbonate, kaolin and gel type silica, and has an average oil absorption of 70 ml/100 g to 120 ml/100 g.
    Type: Application
    Filed: August 29, 2008
    Publication date: August 5, 2010
    Inventors: Tohru Ohshima, Kiyofumi Nagai, Yuuji Kojima, Yasuharu Onogi
  • Electrostatic recording material
    Patent number: 4840834
    Abstract: An electrostatic recording material which comprises a support coated in sequence with a conductive layer and a recording layer composed of a dielectric resin and a pigment, wherein at least a part of the pigment component in said recording layer is made of an aluminum hydroxide powder having an average particle size of 1-20 .mu.m is disclosed.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: June 20, 1989
    Assignee: Oji Paper Co., Ltd.
    Inventors: Yasuharu Onogi, Akinori Oka, Masakatsu Nagatomo, Takumi Kondo, Kouji Mizumoto