Patents by Inventor Junyi Omiya

Junyi Omiya 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).

  • Rotary joint
    Patent number: 6412822
    Abstract: A mechanical seal rotary joint of the end-face contact type which permits slurry fluids, such as polishing solution, to pass through a fluid passage without leaking out of the relatively rotating contact area therein. The rotary joint of the present invention comprises: a first joint body (1); a second joint body (2) connected rotatably to the first joint body (1); a prime seal unit (3) provided between the opposed end portions (11, 21) of the two joint bodies (1, 2); and a continuous line of prime fluid passage (6).
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: July 2, 2002
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Junyi Omiya, Masato Wada