Patents Represented by Law Firm Jordan B. Bierman Bierman, Muserlian and Lucas
  • Silver halide photosensitive material
    Patent number: 6156489
    Abstract: A silver halide photographic light sensitive material comprising a transparent support and provided thereon a light sensitive layer containing a yellow coupler, a magenta coupler and a cyan coupler to form a monochromatic image upon color development after exposure, wherein a relative coupling rate of the magenta coupler with an oxidation product of a color developing agent is higher than that of the yellow or cyan coupler.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: December 5, 2000
    Assignee: Konica Corporation
    Inventors: Toshihiko Iwasaki, Masaru Iwagaki
  • Charging device
    Patent number: 5742874
    Abstract: An charging apparatus includes a housing having a charging side adapted to face a photoreceptor; and a sharp-edged electrode charging member provided in the housing so that the photoreceptor is charged through the charging side by corona discharge from the sharp-edged electrode charging member. The charging apparatus further comprises an air introducing member provided a rear side opposite to the charging side and for introducing air into the housing.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: April 21, 1998
    Assignee: Konica Corporation
    Inventors: Yasushi Koshimura, Kiyohari Nakagama, Atsushi Ogane, Mitsugu Nemoto