Patents by Inventor Tsutomu Nakada

Tsutomu Nakada 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).

  • Publication number: 20130056361
    Abstract: A substrate processing apparatus can arbitrarily switch the flow direction of a processing liquid without causing a change in the overall flow rate of the processing liquid nor creating a non-uniform flow of the processing liquid. The substrate processing apparatus includes a plurality of inlet pipes and a plurality of outlet pipes, connected to a processing tank and to be switched therebetween to create a flow of a processing liquid in the processing tank in a direction different from that of the processing liquid before the switching. The inlet pipes and the outlet pipes are each provided with a flow control device which is controlled by a control section so that upon switching between the pipes, the flow rate of the processing liquid flowing therethrough changes with time.
    Type: Application
    Filed: August 13, 2012
    Publication date: March 7, 2013
    Inventors: Keiichi KURASHINA, Tsutomu Nakada
  • Patent number: 8357284
    Abstract: A metal film-forming method is capable of forming a metal film on a surface of a base metal film, formed on a surface of a substrate, with sufficient adhesion to the base metal film even when a natural oxide film is formed on the surface of the base metal film. The metal film-forming method includes: preparing a substrate having a base metal film formed on a surface; and carrying out electroplating of the substrate using the base metal film as a cathode and another metal as an anode while immersing the substrate in a solution containing a metal complex and a reducing material, both dissolved in a solvent, to form a metal film, deriving from a metal contained in the metal complex, on the surface of the base metal film.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: January 22, 2013
    Assignee: Ebara Corporation
    Inventors: Akira Susaki, Tsutomu Nakada, Hideki Tateishi
  • Publication number: 20120329968
    Abstract: The present invention aims at solving the problems of conventional methods for producing an 18F-labeled compound, that is, the problem of purification of a compound in a liquid phase synthesis method and the problem of an insufficient yield due to the reduction of reactivity in a solid phase synthesis method. There is provided a method for producing an 18F-labeled compound including: allowing a high molecular compound containing a residue of a precursor compound to be labeled and a residue of a phase transfer catalyst in the molecule thereof to react with 18F?; and removing the 18F-labeled compound from the high molecular compound.
    Type: Application
    Filed: February 8, 2011
    Publication date: December 27, 2012
    Applicants: NIIGATA UNIVERSITY, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Takashi Takahashi, Hiroshi Tanaka, Tsutomu Nakada
  • Patent number: 8205625
    Abstract: A surface treatment apparatus of a substrate can clean a substrate surface in the air without employing a vacuum apparatus, and can remove a natural oxide film or an organic material, such as BTA, from the substrate surface without resorting to plasma cleaning. The surface treatment apparatus includes: an inert gas supply section for supplying an inert gas to the whole or part of a substrate surface to form an oxygen-blocking zone; a heating section for keeping the substrate surface at a predetermined temperature; and a cleaning gas supply section for supplying a cleaning gas to the oxygen-blocking zone to clean the substrate surface.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: June 26, 2012
    Assignee: Ebara Corporation
    Inventors: Hideki Tateishi, Tsutomu Nakada, Akira Susaki, Shohei Shima, Yukio Fukunaga
  • Patent number: 8029653
    Abstract: An electroplating apparatus can form a plated film having a more uniform thickness and good film quality over an entire surface of a substrate having a conductive layer (seed layer) whose resistivity is equal to or higher than that of copper.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: October 4, 2011
    Assignee: Ebara Corporation
    Inventors: Satoru Yamamoto, Keiichi Kurashina, Takashi Kawakami, Tsutomu Nakada, Hiroyuki Kanda, Junji Kunisawa, Kunihito Ide
  • Patent number: 8012330
    Abstract: A plating method, employing a face-down manner of plating and using a resistor body between a substrate and an anode, can securely bring an entire surface to be plated of the substrate into contact with a plating solution without permitting intrusion of air bubbles to the surface to be plated. A resistor body is disposed above the anode and immersed in the plating solution, allowing the plating solution to flow along an upper surface of the resistor body from the periphery toward the center of the resistor body. Thus, a raised portion of the plating solution is created in the center of the upper surface of the resistor body. The substrate is then lowered with the surface facing downwardly so as to fill the space between the surface to be plated of the substrate and the upper surface of the resistor body with the plating solution.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: September 6, 2011
    Assignee: Ebara Corporation
    Inventors: Takashi Kawakami, Tsutomu Nakada
  • Publication number: 20110155581
    Abstract: A metal film-forming method is capable of forming a metal film on a surface of a base metal film, formed on a surface of a substrate, with sufficient adhesion to the base metal film even when a natural oxide film is formed on the surface of the base metal film. The metal film-forming method includes: preparing a substrate having a base metal film formed on a surface; and carrying out electroplating of the substrate using the base metal film as a cathode and another metal as an anode while immersing the substrate in a solution containing a metal complex and a reducing material, both dissolved in a solvent, to form a metal film, deriving from a metal contained in the metal complex, on the surface of the base metal film.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Inventors: Akira SUSAKI, Tsutomu Nakada, Hideki Tateishi
  • Patent number: 7947156
    Abstract: A substrate processing apparatus can carry out removal of a passive layer (ruthenium oxide) present on a surface of a ruthenium film and electroplating successively, and can reduce the terminal effect at the time of the removal of the passive layer (ruthenium oxide) from the ruthenium film. The substrate processing apparatus includes: an electrolytic processing apparatus for electrochemically removing a passive layer, formed on a surface of a ruthenium film on a substrate, by electrolytic processing with the ruthenium film as a cathode; a copper electroplating apparatus for carrying out copper electroplating on the surface of the ruthenium film on the substrate; and an apparatus frame housing the electrolytic processing apparatus and the copper electroplating apparatus.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: May 24, 2011
    Assignee: Ebara Corporation
    Inventors: Hiroyuki Kanda, Akira Susaki, Satoru Yamamoto, Tsutomu Nakada
  • Publication number: 20100163408
    Abstract: A plating apparatus can form a plated film having a more uniform thickness over an entire surface of a substrate and can securely fill interconnect recesses with the metal without forming voids in the embedded metal even when the substrate has a high sheet resistance in the surface. The plating apparatus includes a substrate holder for holding a substrate, a cathode portion including a cathode for contact with the substrate held by the substrate holder to feed electricity to the substrate, and an anode, partly or wholly having a high resistance, disposed opposite a surface of the substrate held by the substrate holder, wherein plating of the surface of the substrate is carried out while filling between the anode and the substrate held by the substrate holder with a plating solution.
    Type: Application
    Filed: March 4, 2010
    Publication date: July 1, 2010
    Inventors: Keiichi Kurashina, Tsutomu Nakada, Takashi Kawakami, Satoru Yamamoto, Keisuke Hayabusa
  • Publication number: 20100032315
    Abstract: An electrolytic processing apparatus, prior to carrying out plating directly on, e.g., a ruthenium film of a substrate using the ruthenium film as a seed layer, can securely remove a passive layer formed on a surface of the ruthenium film even when the substrate is a large-sized high-resistance substrate, such as a 300-mm wafer, thereby reducing the terminal effect during the subsequent plating, improving the quality of a plated film and enabling filling of a void-free plated film into a fine interconnect pattern.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 11, 2010
    Inventors: Junko Mine, Akira Susaki, Hiroyuki Kanda, Tsutomu Nakada
  • Patent number: 7659312
    Abstract: This invention relates an inhibitory modulator of AQP4 protein regarding its transmembrane water transport properties, wherein the modulator selectively binds to the AQP4 protein, and inhibits AQP4 mediated water transport.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: February 9, 2010
    Assignee: Niigata University
    Inventors: Tsutomu Nakada, Vincent J. Huber
  • Patent number: 7543938
    Abstract: An electronic image shown on a display can be shifted to the left for left eye viewing and shifted to the right for right eye viewing. A left eye shutter can be positioned over the left eye and a right eye shutter positioned over the right eye. The left eye shutter can open when the image shown on the display is shifted to the left, and the right eye shutter can open when the image shown on the display is shifted to the right, such that each eye can view the image without substantial convergence. In addition to relieving convergence, embodiments of the present invention may relieve prolonged ciliary muscle spasms that can result in pseudomyopia, and may also decrease the onset and severity of myopia, for example developmental myopia.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: June 9, 2009
    Inventor: Tsutomu Nakada
  • Publication number: 20090073375
    Abstract: An electronic image shown on a display can be shifted to the left for left eye viewing and shifted to the right for right eye viewing. A left eye shutter can be positioned over the left eye and a right eye shutter positioned over the right eye. The left eye shutter can open when the image shown on the display is shifted to the left, and the right eye shutter can open when the image shown on the display is shifted to the right, such that each eye can view the image without substantial convergence. In addition to relieving convergence, embodiments of the present invention may relieve prolonged ciliary muscle spasms that can result in pseudomyopia, and may also decrease the onset and severity of myopia, for example developmental myopia.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Inventor: Tsutomu Nakada
  • Publication number: 20090020434
    Abstract: A substrate processing method makes it possible to fill interconnect recesses, such as trenches, with a defect-free interconnect material by carrying out electroplating directly on a surface of a ruthenium film as a barrier layer. The substrate processing method comprises: providing a substrate having interconnect recesses formed in a substrate surface and having a ruthenium film formed in the entire substrate surface including interior surfaces of the interconnect recesses; keeping the substrate surface in contact with a plating solution for a predetermined time to adsorb an additive in the plating solution onto the ruthenium film, and then carrying out electroplating to form a conductive film on a surface of the ruthenium film.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 22, 2009
    Inventors: Akira Susaki, Tsutomu Nakada, Satoru Yamamoto, Keiichi Kurashina, Hiroyuki Kanda
  • Publication number: 20080264798
    Abstract: An acid copper plating solution and plating method are disclosed. The acid copper plating solution comprises copper ions, an organic acid or an inorganic acid, chloride ions, high molecular weight surfactant which controls the electrodeposition reaction, and a sulfur-containing saturated organic compound which promotes the electrocoating rate, wherein the high molecular weight surfactant comprises two or more types with different hydrophobicities. The plating method is a method for forming a plating film on a conductor layer, which is formed on at least a part of a structural object having a concave-convex pattern on a semiconductor substrate, and comprises providing a cathode potential to the conductor layer and supplying a plating solution which electrically connects an anode with the conductor layer, wherein the plating solution contains 25-75 g/l of copper ion and 0.4 mol/l of an organic acid or inorganic acid and an electric resistor is installed between the conductor layer and the anode.
    Type: Application
    Filed: June 13, 2008
    Publication date: October 30, 2008
    Applicants: EBARA CORPORATION, EBARA-UDYLITE CO., LTD.
    Inventors: Tsutomu NAKADA, Tsuyoshi Sahoda, Koji Mishima, Ryoichi Kimizuka, Takeshi Kobayashi
  • Publication number: 20080210562
    Abstract: A plating method, despite employing a face-down manner of plating and using a resistor body between a substrate and an anode, can securely bring an entire surface to be plated of the substrate into contact with a plating solution without permitting intrusion of air bubbles to the surface to be plated, thereby enabling uniform plating, and can easily regulate the temperature of the plating solution.
    Type: Application
    Filed: February 25, 2008
    Publication date: September 4, 2008
    Inventors: Takashi Kawakami, Tsutomu Nakada
  • Publication number: 20080176008
    Abstract: A magnetic film forming apparatus can form a magnetic film, especially a magnetic alloy film, selectively on a metal surface exposed on a surface of a substrate, such as a semiconductor wafer. The magnetic film forming apparatus comprises an electroless plating apparatus having a magnetic field generation apparatus for generating a magnetic field around and parallel to a substrate disposed such that the surface of the substrate is in contact with a plating solution in a plating tank.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 24, 2008
    Inventors: Xinming Wang, Akira Owatari, Takashi Koba, Tsutomu Nakada, Akira Fukuda
  • Publication number: 20080124932
    Abstract: An surface treatment apparatus of a substrate can clean a substrate surface in the air without employing a vacuum apparatus, and can remove a natural oxide film or an organic material, such as BTA, from the substrate surface without resorting to plasma cleaning. The surface treatment apparatus includes: an inert gas supply section for supplying an inert gas to the whole or part of a substrate surface to form an oxygen-blocking zone; a heating section for keeping the substrate surface at a predetermined temperature; and a cleaning gas supply section for supplying a cleaning gas to the oxygen-blocking zone to clean the substrate surface.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 29, 2008
    Inventors: Hideki Tateishi, Tsutomu Nakada, Akira Susaki, Shohei Shima, Yukio Fukunaga
  • Publication number: 20080099340
    Abstract: A substrate processing apparatus can carry out removal of a passive layer (ruthenium oxide) present on a surface of a ruthenium film and electroplating successively, and can reduce the terminal effect at the time of the removal of the passive layer (ruthenium oxide) from the ruthenium film. The substrate processing apparatus includes: an electrolytic processing apparatus for electrochemically removing a passive layer, formed on a surface of a ruthenium film on a substrate, by electrolytic processing with the ruthenium film as a cathode; a copper electroplating apparatus for carrying out copper electroplating on the surface of the ruthenium film on the substrate; and an apparatus frame housing the electrolytic processing apparatus and the copper electroplating apparatus.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 1, 2008
    Inventors: Hiroyuki Kanda, Akira Susaki, Satoru Yamamoto, Tsutomu Nakada
  • Publication number: 20080029398
    Abstract: An electroplating apparatus can form a plated film having a more uniform thickness and good film quality over an entire surface of a substrate having a conductive layer (seed layer) whose resistivity is equal to or higher than that of copper.
    Type: Application
    Filed: February 21, 2007
    Publication date: February 7, 2008
    Inventors: Satoru Yamamoto, Keiichi Kurashina, Takashi Kawakami, Tsutomu Nakada, Hiroyuki Kanda, Junji Kunisawa, Kunihito Ide