Patents Assigned to Toukaigikenkougyo Corporation
  • Patent number: 6863649
    Abstract: A stimulating ring for giving a female sexual pleasure by stimulating a female sexual organ during intercourse. The stimulating ring (10) includes an inner ring (12) and an outer ring (14) made of silicone rubber. Both rings (12, 14) have U-shaped sections with thick walled portions (16, 20) formed at the ends of the U-shapes. During intercourse, the stimulating ring (10) is pressed from opposite sides and deformed, which causes the thick-walled portion (20) to stimulate a female vulva. In addition, a hollow structural body (40) which inflates inward in the radial direction of the ring is attached to the inner side of the inner ring (12) in a radial direction of the ring. It is possible to squeeze a root of a penis erected by a penis erection aiding tool, block the flow of the blood, and keep the penis congested by inflating the hollow structural body (40).
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: March 8, 2005
    Assignee: Toukaigikenkougyo Corporation
    Inventor: Nobuhiro Yasue
  • Patent number: 6547718
    Abstract: A sexual stimulation device is placed on the root of the penis before sexual intercourse and is constructed of an outer ring and an inner ring. During sexual intercourse a first portion of the inner ring is displaced inwardly, resulting in a squeezing force being applied to the root of the penis and a second portion of the inner ring and a portion of the outer ring are displaced outwardly and contact the vulva of the female sex organ.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: April 15, 2003
    Assignee: Toukaigikenkougyo Corporation
    Inventor: Nobuhiro Yasue