Patents by Inventor Hajime Senko

Hajime Senko 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).

  • Patent number: 5393029
    Abstract: This invention aims to provide a portable and retractable book-reading stand which is easily carried, does not require spacious installing space, and is providable at low cost.This invention is characterized in having a case having a bottom plate and a covering body rotatably connected to the bottom plate which holds the bottom plate at a specified inclined angle by rotating the covering body, and a supporting assembly for holding a document which is expandable along the inclined bottom plate in expanded condition, and retractable up to the size being housed in the case in retracted position, and a clip installed on the upper portion of the supporting assembly.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: February 28, 1995
    Assignee: Project Center Co., Ltd.
    Inventor: Hajime Senko