Patents by Inventor Kenichi Ohaku

Kenichi Ohaku 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).

  • Electrophotoconductor with light-sensitive layer containing alpha-type titanyl phthalocyanine
    Patent number: 4728592
    Abstract: An electrophotoconductor having a light-sensitive layer characterized in that a titanyl phthalocyanine is dispersed in a binder, said titanyl phthalocyanine having the structure represented by the general formula: ##STR1## (wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4 each and independently represent Cl or Br; and k, l, m and n each and independently represent 0 or an integer of 1 to 4) and an alpha-type crystallographic form.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: March 1, 1988
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Kenichi Ohaku, Hiroshi Nakano, Masao Aizawa