Patents by Inventor Naoki Maeno

Naoki Maeno 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: 5213596
    Abstract: An air cleaner device includes a filter element for filtering air and being disposed in a housing. The device comprises a hollow housing having an inlet portion, an outlet portion, and a flow passage therein which is communicated with the inlet portion and the outlet portion. The housing also has an opening which is disposed between the inlet portion and the outlet portion, and communicates the flow passage with the exterior of the housing. A filter element is inserted through the opening into the flow passage, disposed between the inlet portion and the outlet portion, so as to filter the air flowing through the flow passage. A lid is mounted on the housing for covering the opening. A resilient urging member allows the lid to be urged toward the housing so as to close the opening, and the resilient urging member allows the lid to be moved away from the opening when this urging is released.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: May 25, 1993
    Assignees: Nippondenso Co., Ltd., Toyoda Boshoku Corporation
    Inventors: Masato Kume, Yoshimi Suzuki, Naoki Maeno