Patents by Inventor Keiichi Shiohara

Keiichi Shiohara 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).

  • INJECTION MOLDING METHOD, INJECTION-MOLDED PRODUCT, OPTICAL ELEMENT, OPTICAL PRISM, INK TANK, RECORDING DEVICE, AND INJECTION MOLD
    Publication number: 20120306972
    Abstract: There is provided an injection molding method in which a molten resin, which is injected into a molding space formed between a fixed side mold including a movable insert and a movable side mold, is cooled in a state in which a surface of the molten resin comes into contact with the movable insert and thereby the surface is solidified, and internal solidification of the molten resin is completed by cooling the molten resin in a state where the molten resin and the movable insert are separated from each other by moving the movable insert before the internal solidification of the molten resin, whose surface is solidified in a state in which the surface comes into contact with the movable insert, is completed.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 6, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kei Yokota, Keiichi Shiohara