Patents by Inventor Naohito Naraoka

Naohito Naraoka 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).

  • Silver halide light-sensitive photographic material and area-modulation image forming method
    Publication number: 20020076661
    Abstract: The present invention provides a system of a digital color proof in which consistent images are obtained while minimizing density variation in spite of various variations of conditions due to the use of a silver halide light-sensitive color material, specifically, the present invention provides a method for forming proof images similar to printed images in terms of various characteristics such as the paper quality of silver halide light-sensitive materials, the dot gain, and the density.
    Type: Application
    Filed: September 20, 2001
    Publication date: June 20, 2002
    Applicant: KONICA CORPORATION
    Inventors: Tomonori Kawamura, Shigeo Tanaka, Satoshi Nishino, Hirohide Ito, Naohito Naraoka, Naoyo Suzuki, Shinya Watanabe, Masataka Takimoto, Hideaki Sakata, Junichi Tanabe, Tetsuya Taniguchi, Naoki Nozaki, Yasushi Okubo, Koji Daifuku, Katsuji Kondo, Toshitsugu Suzuki
  • Packaging material for a photographic material
    Patent number: 5914161
    Abstract: Disclosed is a packaging material for a light-sensitive material, said packaging material comprising a multi-layered structure, wherein said multi-layered structure comprising a layer, said layer containing a polyethylene having a molecular weight distribution of 1.5 to 2.4 in an amount of 20 to 90% by weight of said layer.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: June 22, 1999
    Assignee: Konica Corporation
    Inventors: Naohito Naraoka, Yasuhisa Kanezashi
  • Material for packaging light-sensitive materials
    Patent number: 5055344
    Abstract: A material for packaging light-sensitive materials having a light-shielding film with a thickness of 30-150 .mu.m comprised of a thermoplastic resin containing 5-25 wt % of an ethylene-propylene based rubber having a Mooney viscosity of 10-100 [ML 1+4 (100.degree.C.)] and an iodine value of 20 (I.sub.2 g/100 g EPFDM) and 1.2-10 wt % of carbon black.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: October 8, 1991
    Assignees: Konica Corporation, Hikari Chemical Industry Corporation Limited
    Inventors: Naohito Naraoka, Masao Ishiwata, Akiji Thunoda