Patents by Inventor Keiko Oyabu

Keiko Oyabu 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: 6227001
    Abstract: Fins (6) of an indoor heat exchanger (4) for an separate type air conditioner are prevented from being deflected toward the inside and deformed by an external force imposed during transport. In the separate type air conditioner comprising: an indoor unit including an indoor air intake port (2), an indoor heat exchanger (4) bent into a front portion and a rear portion, an indoor fan, an indoor air blow-off port (5), etc.; an outdoor unit including an outdoor air intake port, an outdoor heat exchanger, an outdoor fan, an outdoor air blow-off port, a compressor, etc.; and pipes and wires connecting the indoor unit to the outdoor unit to form a refrigeration cycle and an electric circuit, a spacer (9) provided on top of the bent portion of the indoor heat exchanger (4) is provided with protruding faces (10, 11, 13) so that the protruding faces (10, 11, 13) are caused to abut on the upper inside of the fins (6) on the front side and the rear side of the indoor heat exchanger (4).
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: May 8, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiko Oyabu, Taii Tsuji, Masami Hayashi
  • Patent number: 6094928
    Abstract: An outdoor unit of a separate type air-conditioner, of which work efficiency of piping and maintenance accessed from the top is improved, is provided. At the same time, water is prevented from invading onto compressor-related electrical parts. An upper section of a housing is disclosed by removing a top plate of the housing, whereby a compressor room is disclosed. The compressor room is divided by a valve mounting plate into a lower chamber A containing a compressor together with nearby placed compressor-related electrical parts and an upper chamber B containing connecting valves that connect the compressor to a coolant pipe from an indoor unit. In the outdoor unit where the connecting valves are mounted on the valve mounting plate, an opening for work is provided on the valve mounting plate so that the compressor-related electrical parts are operated through this opening from the top. A surrounding wall rising upward is disposed on an edge of the opening.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: August 1, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Keiko Oyabu, Mitsuo Nakanuma, Koji Hatano