Patents by Inventor Eiichi Iijima

Eiichi Iijima 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: 8574366
    Abstract: A vacuum processing apparatus includes: a plurality of carriers to be mounted with a base member; a circulation path which is kept in a controlled atmosphere and through which the carriers circulate; a plurality of base member loading and unloading chambers which are disposed in the circulation path and which load and unload the base member to and from the carriers; and a plurality of vacuum processing chambers which are disposed between the base member loading and unloading chambers in the circulation path for performing a vacuum process on the base member.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: November 5, 2013
    Assignee: Ulvac, Inc.
    Inventor: Eiichi Iijima
  • Patent number: 8460048
    Abstract: A method for manufacturing a plasma display panel in which an electrical discharge gas is introduced into a space between a first substrate and a second substrate which are sealed together, the method including: a first deaeration step of releasing impurity gases from a protective film by heating the first substrate, on which the protective film is formed for withstanding plasma electrical discharge, to 280° C. or more in a vacuum or in a controlled atmosphere; and a sealing step of sealing the front substrate, in which the impurity gases have been released from the protective film, and a rear substrate which are placed in contact with each other.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 11, 2013
    Assignee: Ulvac, Inc.
    Inventors: Eiichi Iijima, Muneto Hakomori, Masato Nakatuka, Toshiharu Kurauchi
  • Patent number: 8454404
    Abstract: A method for manufacturing a sealed panel having a first substrate and a second substrate, including: a melting step of melting a sealing material which does not contain a binder for making the sealing material into paste form; a coating step of applying the melted sealing material onto a surface of the second substrate; and a sealing step of laminating the first substrate and the second substrate via the sealing material applied onto the surface of the second substrate.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 4, 2013
    Assignee: Ulvac, Inc.
    Inventors: Eiichi Iijima, Muneto Hakomori, Toshiharu Kurauchi, Takanobu Yano, Yuichi Orii
  • Patent number: 8198797
    Abstract: [Object] In the control of electron beam focusing of a pierce-type electron gun, any influences from the space charge effect and space charge neutralizing action within the electron gun are eliminated to attain complete control of an electron beam. [Solving Means] Feedback control of the pressure within the electron gun is performed by directly measuring temperature at an internal of the pierce-type electron gun. It is desirable that locations where the direct measurement of the temperature at the internal of the electron gun is performed are an anode (39) and a flow register (43). Further, the direct measurement can be performed at any one of a ring, an aperture and an exhaust pipe provided at an outlet or an inlet of any one of a cathode chamber (31), an intermediate chamber, and a scanning chamber (33).
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: June 12, 2012
    Assignee: Ulvac, Inc.
    Inventors: Eiichi Iijima, Guo Hua Shen, Tohru Satake
  • Publication number: 20120114854
    Abstract: A vacuum processing apparatus has a degassing chamber and does not need a large-sized vacuum evacuation device. In the process of heating and degassing an object to be processed in the degassing chamber, transferring the object to be processed into a processing chamber through a buffer chamber; and performing vacuum processing, the degassing chamber is connected to an vacuum evacuation system having a low evacuation speed and degassing processing is performed in a vacuum atmosphere of 1 to 100 Pa (time 0 to t2). Next, the object to be processed is moved to the buffer chamber, and the pressure inside the buffer chamber is lowered to near the pressure of the processing chamber (time t2 to t3), then the buffer chamber and the processing chamber are connected, and the object to be processed is transferred into the processing chamber.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 10, 2012
    Applicant: ULVAC, INC.
    Inventors: Eiichi IIJIMA, Hiroto Ikeda, Muneto Hakomori
  • Patent number: 8028972
    Abstract: Even when a gate valve for a vacuum apparatus used in a vapor deposition apparatus is in an open position, reliability of keeping a vapor deposition chamber vacuum can be improved by protecting an inner wall surface of a valve casing and a sealing member of a valve body against a vapor of a vapor deposition material. A gate valve (1) for a vacuum apparatus (50) is used as a gate valve for an electron gun (52). When the valve is in a closed position, as with the related art technique, a valve body (3) detaches an electron gun (52) part from a vapor deposition chamber (51).
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: October 4, 2011
    Assignee: Ulvac, Inc
    Inventor: Eiichi Iijima
  • Publication number: 20110143033
    Abstract: A vacuum processing apparatus has a degassing chamber and does not need a large-sized vacuum evacuation device. In the process of heating and degassing an object to be processed in the degassing chamber, transferring the object to be processed into a processing chamber through a buffer chamber; and performing vacuum processing, the degassing chamber is connected to an vacuum evacuation system having a low evacuation speed and degassing processing is performed in a vacuum atmosphere of 1 to 100 Pa (time 0 to t2). Next, the object to be processed is moved to the buffer chamber, and the pressure inside the buffer chamber is lowered to near the pressure of the processing chamber (time t2 to t3), then the buffer chamber and the processing chamber are connected, and the object to be processed is transferred into the processing chamber.
    Type: Application
    Filed: January 31, 2011
    Publication date: June 16, 2011
    Applicant: ULVAC, INC
    Inventors: Eiichi IIJIMA, Hiroto Ikeda, Muneto Hakomori
  • Publication number: 20100167618
    Abstract: A method for manufacturing a plasma display panel in which an electrical discharge gas is introduced into a space between a first substrate and a second substrate which are sealed together, the method including: a first deaeration step of releasing impurity gases from a protective film by heating the first substrate, on which the protective film is formed for withstanding plasma electrical discharge, to 280° C. or more in a vacuum or in a controlled atmosphere; and a sealing step of sealing the front substrate, in which the impurity gases have been released from the protective film, and a rear substrate which are placed in contact with each other.
    Type: Application
    Filed: May 30, 2008
    Publication date: July 1, 2010
    Applicant: ULVAC, INC.
    Inventors: Eiichi Iijima, Muneto Hakomori, Masato Nakatuka, Toshiharu Kurauchi
  • Publication number: 20100159787
    Abstract: A method for manufacturing a sealed panel having a first substrate and a second substrate, including: a melting step of melting a sealing material which does not contain a binder for making the sealing material into paste form; a coating step of applying the melted sealing material onto a surface of the second substrate; and a sealing step of laminating the first substrate and the second substrate via the sealing material applied onto the surface of the second substrate.
    Type: Application
    Filed: May 30, 2008
    Publication date: June 24, 2010
    Applicant: ULVAC, INC.
    Inventors: Eiichi Iijima, Muneto Hakomori, Toshiharu Kurauchi, Takanobu Yano, Yuichi Orii
  • Publication number: 20100143079
    Abstract: A vacuum treatment apparatus is provided with a plurality of carriers whereupon a base material is mounted; a circulation path which is held in a controlled atmosphere and permits the carriers to circulate therein; a plurality of base material exit/entrance chambers arranged in the circulation path for loading and taking out the base material on and from the carriers; and vacuum treatment chambers which are arranged between the base material exit/entrance chambers in the circulation path and perform vacuum treatment to the base material.
    Type: Application
    Filed: July 21, 2006
    Publication date: June 10, 2010
    Applicant: ULVAC, INC.
    Inventor: Eiichi Iijima
  • Publication number: 20100026161
    Abstract: [Object] In the control of electron beam focusing of a pierce-type electron gun, any influences from the space charge effect and space charge neutralizing action within the electron gun are eliminated to attain complete control of an electron beam. [Solving Means] Feedback control of the pressure within the electron gun is performed by directly measuring temperature at an internal of the pierce-type electron gun. It is desirable that locations where the direct measurement of the temperature at the internal of the electron gun is performed are an anode (39) and a flow register (43). Further, the direct measurement can be performed at any one of a ring, an aperture and an exhaust pipe provided at an outlet or an inlet of any one of a cathode chamber (31), an intermediate chamber, and a scanning chamber (33).
    Type: Application
    Filed: October 18, 2007
    Publication date: February 4, 2010
    Applicant: ULVAC, INC
    Inventors: Eiichi Iijima, Guo Hua Shen, Tohru Satake
  • Publication number: 20090250648
    Abstract: Even when a gate valve for a vacuum apparatus used in a vapor deposition apparatus is in an open position, reliability of keeping a vapor deposition chamber vacuum can be improved by protecting an inner wall surface of a valve casing and a sealing member of a valve body against a vapor of a vapor deposition material. A gate valve (1) for a vacuum apparatus (50) is used as a gate valve for an electron gun (52). When the valve is in a closed position, as with the related art technique, a valve body (3) detaches an electron gun (52) part from a vapor deposition chamber (51).
    Type: Application
    Filed: November 28, 2006
    Publication date: October 8, 2009
    Inventor: Eiichi Iijima