Patents by Inventor Masabumi Katsunuma

Masabumi Katsunuma 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).

  • Magnetic tape guide mechanism for magnetic recording/reproducing apparatus
    Patent number: 5296994
    Abstract: A magnetic tape guide mechanism for a magnetic recording/reproducing apparatus which includes a base having a large-inner-diameter hole with a larger inner diameter than a shaft hole, and a resilient synthetic resin member located in the large-inner-diameter hole and surrounding the shaft of a tape guide. As a result, a horizontally extended threaded hole and fixing screw conventionally required are eliminated and the overall construction is simplified. Moreover, the adjustment work is facilitated and the overall production cost of the components are substantially reduced.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: March 22, 1994
    Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.
    Inventors: Noboru Katohno, Yasuhiro Hashiguchi, Masabumi Katsunuma