Patents by Inventor Koyo USHIKI

Koyo USHIKI 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).

  • MECHANICAL PENCIL HAVING A REFILL LEAD CONTAINER
    Publication number: 20180093524
    Abstract: A mechanical pencil includes a main body in which a mechanism for discharging a pencil lead is located, and a clip attached to the main body wherein the clip includes a container for storing a refill for a pencil lead.
    Type: Application
    Filed: December 7, 2017
    Publication date: April 5, 2018
    Inventors: Ryo SHIRANE, Eiko TANAKA, Ryo KAWAMURA, Masako OKUYAMA, Rei TAKAHASHI, Honami YAMAZAKI, Koyo USHIKI, Hikaru IKEDA