Patents by Inventor Eiichi Mukai

Eiichi Mukai 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: 6861371
    Abstract: The present invention provides a substrate processing system and method which can prevent the filter from being stuffed with foreign objects and make the filter accordingly more durable. The substrate processing system 12 comprising a substrate processing unit 46 for processing substrates W with a processing liquid, and a processing liquid recovery passage 75 for passing the processing liquid discharged from the substrate processing unit 46, in which the processing liquid recovery passage 75 includes a filter 80 for removing foreign objects mixed in the processing liquid, a cleaning fluid supply passage 120 for feeding a cleaning fluid for cleaning the filter 80, and a discharge passage 115 for discharging the processing liquid and the cleaning fluid from the filter 80.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: March 1, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Yuji Kamikawa, Eiichi Mukai
  • Publication number: 20030084929
    Abstract: The present invention provides a substrate processing system and method which can prevent the filter from being stuffed with foreign objects and make the filter accordingly more durable.
    Type: Application
    Filed: November 1, 2002
    Publication date: May 8, 2003
    Inventors: Yuji Kamikawa, Eiichi Mukai
  • Patent number: 5503171
    Abstract: A substrates-washing apparatus includes a process vessel in which washing solution is stored to wash a plurality of substrates, a boat for holding the substrates parallel to one another in the process vessel, solution supply openings formed in the bottom of the process vessel, a solution supply system communicated with the solution supply openings to supply washing solution into the process vessel through the solution supply openings, and a straightening plate arranged between the substrates held on the boat and the solution supply openings in the bottom of the process vessel and provided with a plurality of apertures through which washing solution passes. The apertures form plural lines in the longitudinal direction of the straightening plate, the apertures in each line are arranged to correspond to the substrates alternately, and the apertures in one line are shifted from those in the other adjacent line.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: April 2, 1996
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Kenji Yokomizo, Chihaya Tashima, Eiichi Mukai, Yoshiyuki Honda, Naohiko Hamamura, Shinya Murakami, Yasuhiro Chouno
  • Patent number: 5370142
    Abstract: A substrates-cleaning apparatus comprising process vessels in which washing solutions are contained, a chuck mechanism having a first substrate holder section for carrying silicon wafers to the process vessels while holding them in it, and a boat mechanism having a second substrate holder section for receiving the wafers from the chuck mechanism and for supporting the wafers in the washing solutions, wherein said second substrate holder section comprises base members made of erosion and heat resistant material, and receiver members attached to the base members, having a plurality of substrate holding grooves thereon, and made of erosion and heat resistant synthetic resin substantially same in softness as or softer than the wafers.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: December 6, 1994
    Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu Limited
    Inventors: Mitsuo Nishi, Takanori Miyazaki, Eiichi Mukai, Yuuji Kamikawa, Hiroshi Tanaka
  • Patent number: 5301700
    Abstract: A washing system comprising a wafer washing section having plural chemical washing vessels, plural water washing vessels and a drier, a cassette washing section having a water washing device and a drier, a loader section for taking out the wafers from the cassettes and loading the wafers into the wafer washing section, an unloader section for returning the washed wafers in the washed cassette and unloading the wafers from the wafer washing section, a wafer transfer device the wafers in the wafer washing section, a cassette lifter for carrying the cassettes from the loader section to the cassette washing section, and a wire drive unit for carrying the cassettes in the cassette washing section.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: April 12, 1994
    Assignees: Tokyo Electron Limited, Tokyo Electron Saga Limited
    Inventors: Yuuji Kamikawa, Kouki Kuroda, Yoshiyuki Honda, Eiichi Mukai, Mitsuo Nishi