Patents by Inventor Karin Okamura

Karin Okamura 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: 5937738
    Abstract: In a coffee extracting apparatus for extracting coffee essence from the coffee material within an extracting device (10) with use of compressed air generated in an air compressor (11), use is made of an accumulator (23) for accumulating the compressed air. The accumulator is connected to an air passage (12) which connects the extracting device with the air compressor. An air control valve (22) is disposed in the air passage and is for controlling flow of the compressed air to make the accumulator accumulate the compressed air.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: August 17, 1999
    Assignee: Sanden Corporation
    Inventors: Karin Okamura, Isao Katou, Makoto Kobayashi, Akio Kawabata
  • Patent number: 5896805
    Abstract: In a coffee extracting apparatus in which coffee essence is extracted from coffee powder (200) in a container (51), an air feeding arrangement (43) is provided for feeding pressed air into the container. After the coffee essence is extracted from coffee powder, coffee grounds (200') are remained in the container. It is assumed that the coffee grounds are adhered to an inner surface of the container. In order to expel the coffee grounds from the container, the air feeding arrangement is controlled so that the pressed air is fed into the container after extracting the coffee essence from the coffee powder.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: April 27, 1999
    Assignee: Sanden Corporation
    Inventors: Isao Katou, Karin Okamura, Makoto Kobayashi, Akio Kawabata
  • Patent number: 5878654
    Abstract: In a coffee extracting apparatus in which an extracting container (51) extracts coffee essence from coffee powder with being supplied with hot water of substantially normal pressure and elevated temperature, a water control valve (48) controls a feed of the hot water to the extracting container. The hot water is fed to the extracting container with being pressed in a water feeding device (43). The coffee essence is taken out from the extracting container together with the hot water through a filter member (53, 54) supported by a support member (52).
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: March 9, 1999
    Assignee: Sanden Corporation
    Inventors: Makoto Kobayashi, Isao Katou, Karin Okamura, Akio Kawabata