Patents by Inventor Shinjiro Maruyama

Shinjiro Maruyama 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).

  • Bed
    Patent number: 3993051
    Abstract: The invention provides a bed which, when an individual lies down upon it, allows him to take the "Yoga Slant Position" -- with the head lower than the feet -- through its automatic tilting operation, which gently returns the bed to its normal horizontal position after a short time. The bed is supported by a pair of hydraulic support means disposed respectively at the front and rear section, each oil chamber of the hydraulic support means being connected to an oil chamber of an oil tank which is provided separately, via a variable throttle valve.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: November 23, 1976
    Inventor: Shinjiro Maruyama