Patents by Inventor Hisayuki Akagi

Hisayuki Akagi 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).

  • Lip type seal
    Patent number: 8256772
    Abstract: For better assembling characteristic and sealing performance with secured circularity and coaxiality of a seal lip, a lip type seal installed to an inner periphery of a shaft hole of a housing in slidable contact with a peripheral surface of a shaft for inhibiting a sealed fluid in the machine from leaking to an atmospheric air side, has a cartridge fitted to an inner periphery of the shaft hole, a first lip seal member made of a rubber-like elastic material and fitted in a non-bonding manner to the cartridge, a case fitted in a non-bonding manner to the first lip seal member, a second lip seal member made of a resin and a backup ring supporting the second lip seal member which are retained by caulking to the case, and an adapter fitted to the cartridge at a sealed fluid side of the first lip seal member.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: September 4, 2012
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Masatoshi Itadani, Hideki Kawai, Hideki Tomoto, Hisayuki Akagi
  • LIP TYPE SEAL
    Publication number: 20110215536
    Abstract: For better assembling characteristic and sealing performance with secured circularity and coaxiality of a seal lip, a lip type seal installed to an inner periphery of a shaft hole of a housing in slidable contact with a peripheral surface of a shaft for inhibiting a sealed fluid in the machine from leaking to an atmospheric air side, has a cartridge fitted to an inner periphery of the shaft hole, a first lip seal member made of a rubber-like elastic material and fitted in a non-bonding manner to the cartridge, a case fitted in a non-bonding manner to the first lip seal member, a second lip seal member made of a resin and a backup ring supporting the second lip seal member which are retained by caulking to the case, and an adapter fitted to the cartridge at a sealed fluid side of the first lip seal member.
    Type: Application
    Filed: August 28, 2009
    Publication date: September 8, 2011
    Applicant: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Hideki Kawai, Hideki Tomoto, Hisayuki Akagi
  • Seal for a rotary shaft
    Patent number: D631066
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: January 18, 2011
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Masatoshi Itadani, Hisayuki Akagi, Hideki Kawai, Hideki Tomoto