Patents Assigned to Yugen Caisha Infinity Kenkyusho
  • Air-conditioning air filter
    Patent number: 6485538
    Abstract: The present invention provides an air-conditioning air filter capable of cleaning and replacing only a filter element thereof for resources saving, refuse reduction, and cost reduction, and also preventing air leakage due to expanded deformation of a main box.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: November 26, 2002
    Assignee: Yugen Caisha Infinity Kenkyusho
    Inventor: Kenji Toyoshima