Patents by Inventor Etsuko Sugikawa

Etsuko Sugikawa 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).

  • Air and water supply system for endoscopes
    Patent number: 6558317
    Abstract: The present invention provides a system for endoscopes which can supply air and water according to each application by regulating air and water flow rates independently. Although air and water may be supplied with one pump, the present invention controls air and water flow rates separately by using an air supply pump and water supply pump and by controlling a plurality of open-close valves installed, for example, on atmospheric escape pipes. The air channel and water channel are connected, for draining, by a first connecting pipe. If the air supply pump is used also for water supply and the water supply pump is used also for air supply, it is possible to supply air and water at a high flow rate fast enough even for high-speed water injection. If a fixed flow rate is used for a specified time at the start, specific operations can be simplified.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: May 6, 2003
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Kazuaki Takahashi, Haruo Akiba, Etsuko Sugikawa
  • Air and water supply system for endoscopes
    Publication number: 20010039370
    Abstract: The present invention provides a system for endoscopes which can supply air and water according to each application by regulating air and water flow rates independently. Although air and water may be supplied with one pump, the present invention controls air and water flow rates separately by using an air supply pump and water supply pump and by controlling a plurality of open-close valves installed, for example, on atmospheric escape pipes. The air channel and water channel are connected, for draining, by a first connecting pipe. If the air supply pump is used also for water supply and the water supply pump is used also for air supply, it is possible to supply air and water at a high flow rate fast enough even for high-speed water injection. If a fixed flow rate is used for a specified time at the start, specific operations can be simplified.
    Type: Application
    Filed: July 12, 2001
    Publication date: November 8, 2001
    Applicant: Fuji Photo Optical Co., Ltd.
    Inventors: Kazuaki Takahashi, Haruo Akiba, Etsuko Sugikawa
  • Air and water supply system for endoscopes
    Patent number: 6309347
    Abstract: The present invention provides a system for endoscopes which can supply air and water according to each application by regulating air and water flow rates independently. Although air and water may be supplied with one pump, the present invention controls air and water flow rates separately by using an air supply pump and water supply pump and by controlling a plurality of open-close valves installed, for example, on atmospheric escape pipes. The air channel and water channel are connected, for draining, by a first connecting pipe. If the air supply pump is used also for water supply and the water supply pump is used also for air supply, it is possible to supply air and water at a high flow rate fast enough even for high-speed water injection. If a fixed flow rate is used for a specified time at the start, specific operations can be simplified.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: October 30, 2001
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Kazuaki Takahashi, Haruo Akiba, Etsuko Sugikawa