Patents by Inventor Keizo Tatsunami

Keizo Tatsunami 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: 5353559
    Abstract: An anti-earthquake bearing apparatus for bearing the weight of a structure and reducing the vibration energy propagating to the structure by using bearing bodies disposed between the structure and a foundation or another structure has spherical bag-like bearing bodies serving as said bearing bodies formed by sealing a fluid, rubber-like solid or gas into bags constituted by a rubber-sheet material reinforced with fiber. Each bag-like bearing body is provided with charging/discharging ports. Recesses for preventing positional shift of said bag-like bearing bodies are formed on the bottom surface of the structure and on the upper surface of the foundation.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: October 11, 1994
    Assignees: Bridgestone Corp., Kajima Corp.
    Inventors: Nobuo Murota, Keizo Tatsunami, Koji Ishii, Atsuhiko Yasaka, Masao Iizuka, Jun Tagami
  • Patent number: 4154266
    Abstract: A floating cargo hose for transporting fluid from a vessel having an excellent abrasion resistance and a unique distinct color of colored urethane is manufactured by wrapping a hose body in which is embedded a fibrous sheet or a spiral wire in rubber with a sponge layer having closed cells, covering the sponge layer with a first rubber cover in which is embedded a fibrous sheet and vulcanizing the rubber, treating the first rubber cover to promote adhesion and coating the thus treated first rubber cover with a liquid urethane rubber and curing the liquid urethane rubber to form a second cover.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: May 15, 1979
    Assignee: Bridgestone Tire Company Limited
    Inventors: Mamoru Tanaka, Keizo Tatsunami, Mitsugu Makise