Patents by Inventor Akihiko Kabasawa

Akihiko Kabasawa 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).

  • Process for producing silver halide emulsion in equipment made of stainless steel containing molybdenum
    Patent number: H662
    Abstract: In a process for producing a silver halide emulsion through mixing a halide solution and a silver nitrate solution in the presence of a hydrophilic colloid, the improvement is disclosed wherein any part of the equipment that is employed in the process starting with the initiation of silver halide formation and ending with the coating of the emulsion on a support and with which the reaction solution will come in contact is made of a stainless steel having a molybdenum content of 2.2-5.0 wt %.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: August 1, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshio Saito, Akihiko Kabasawa, Masami Ishikura, Sadayuki Miyazawa, Nobuo Suzuki