Patents by Inventor Shunji Hama

Shunji Hama 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).

  • Air mattress
    Patent number: 8127386
    Abstract: In an air mattress (1) including a plurality of levels of air mattress layers (5, 7) which are vertically stacked, in each of the levels of air mattress layers (5, 7), flexible hollow air cells (43, 23) each extending along the width of the air mattress (1) are arranged in parallel with each other in the longitudinal direction of the air mattress (1), air cells (43, 23) in each of the upper air mattress layer (7) and the lower air mattress layer (5) are divided into a plurality of groups such that the air cells (43, 23) are expanded or contracted in units of the groups by supplying or discharging air to/from these air cells (43, 23).
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 6, 2012
    Assignee: Molten Corporation
    Inventors: Ryuji Kajiwara, Maki Mimura, Shunji Hama
  • AIR MATTRESS
    Publication number: 20100263131
    Abstract: In an air mattress (1) including a plurality of levels of air mattress layers (5, 7) which are vertically stacked, in each of the levels of air mattress layers (5, 7), flexible hollow air cells (43, 23) each extending along the width of the air mattress (1) are arranged in parallel with each other in the longitudinal direction of the air mattress (1), air cells (43, 23) in each of the upper air mattress layer (7) and the lower air mattress layer (5) are divided into a plurality of groups such that the air cells (43, 23) are expanded or contracted in units of the groups by supplying or discharging air to/from these air cells (43, 23).
    Type: Application
    Filed: November 26, 2008
    Publication date: October 21, 2010
    Inventors: Ryuji Kajiwara, Maki Mimura, Shunji Hama