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).
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Patent number: 8574366Abstract: 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: GrantFiled: July 21, 2006Date of Patent: November 5, 2013Assignee: Ulvac, Inc.Inventor: Eiichi Iijima
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Patent number: 8460048Abstract: 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: GrantFiled: May 30, 2008Date of Patent: June 11, 2013Assignee: Ulvac, Inc.Inventors: Eiichi Iijima, Muneto Hakomori, Masato Nakatuka, Toshiharu Kurauchi
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Patent number: 8454404Abstract: 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: GrantFiled: May 30, 2008Date of Patent: June 4, 2013Assignee: Ulvac, Inc.Inventors: Eiichi Iijima, Muneto Hakomori, Toshiharu Kurauchi, Takanobu Yano, Yuichi Orii
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Patent number: 8198797Abstract: [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: GrantFiled: October 18, 2007Date of Patent: June 12, 2012Assignee: Ulvac, Inc.Inventors: Eiichi Iijima, Guo Hua Shen, Tohru Satake
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Publication number: 20120114854Abstract: 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: ApplicationFiled: November 29, 2011Publication date: May 10, 2012Applicant: ULVAC, INC.Inventors: Eiichi IIJIMA, Hiroto Ikeda, Muneto Hakomori
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Patent number: 8028972Abstract: 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: GrantFiled: November 28, 2006Date of Patent: October 4, 2011Assignee: Ulvac, IncInventor: Eiichi Iijima
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Publication number: 20110143033Abstract: 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: ApplicationFiled: January 31, 2011Publication date: June 16, 2011Applicant: ULVAC, INCInventors: Eiichi IIJIMA, Hiroto Ikeda, Muneto Hakomori
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Publication number: 20100167618Abstract: 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: ApplicationFiled: May 30, 2008Publication date: July 1, 2010Applicant: ULVAC, INC.Inventors: Eiichi Iijima, Muneto Hakomori, Masato Nakatuka, Toshiharu Kurauchi
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Publication number: 20100159787Abstract: 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: ApplicationFiled: May 30, 2008Publication date: June 24, 2010Applicant: ULVAC, INC.Inventors: Eiichi Iijima, Muneto Hakomori, Toshiharu Kurauchi, Takanobu Yano, Yuichi Orii
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Publication number: 20100143079Abstract: 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: ApplicationFiled: July 21, 2006Publication date: June 10, 2010Applicant: ULVAC, INC.Inventor: Eiichi Iijima
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Publication number: 20100026161Abstract: [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: ApplicationFiled: October 18, 2007Publication date: February 4, 2010Applicant: ULVAC, INCInventors: Eiichi Iijima, Guo Hua Shen, Tohru Satake
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Publication number: 20090250648Abstract: 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: ApplicationFiled: November 28, 2006Publication date: October 8, 2009Inventor: Eiichi Iijima