Patents by Inventor Eiichi Satou

Eiichi Satou 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: 9022834
    Abstract: The polishing solution for CMP according to the invention comprises abrasive grains, an additive and water, and the polishing solution comprises an organic compound satisfying specified conditions as the additive. The polishing method of the invention is for polishing of a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 5, 2015
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Eiichi Satou, Munehiro Oota, Kanshi Chinone, Shigeru Nobe, Kazuhiro Enomoto, Tadahiro Kimura, Masato Fukasawa, Masanobu Habiro, Yousuke Hoshi
  • Patent number: 8853082
    Abstract: An object of the present invention is to provide a polishing liquid for CMP with which polishing scratches can be reduced and a sufficiently high polishing rate can be obtained in a CMP step for an ILD film, aggregation of an abrasive grain is difficult to occur, and high flatness is obtained, and provide a polishing method using the same. The polishing liquid for CMP according to the present invention is a polishing liquid for CMP containing an abrasive grain, an additive, and water, wherein the abrasive grain comprises a cerium-based particle, and the additive comprises a 4-pyrone-based compound and at least one of a nonionic surfactant or a cationic surfactant: [wherein X11, X12, and X13 each independently represent a hydrogen atom or a monovalent substituent].
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: October 7, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Masayuki Hanano, Eiichi Satou, Munehiro Oota, Kanshi Chinone
  • Patent number: 8592317
    Abstract: The polishing solution for CMP of the invention comprises abrasive grains, a first additive and water, wherein the first additive is at least 1,2-benzoisothiazole-3(2H)-one or 2-aminothiazole. The polishing method of the invention is a polishing method for a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: November 26, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Eiichi Satou, Shigeru Nobe, Munehiro Oota, Masayuki Hanano, Shigeru Yoshikawa
  • Publication number: 20120315763
    Abstract: An object of the present invention is to provide a polishing liquid for CMP with which polishing scratches can be reduced and a sufficiently high polishing rate can be obtained in a CMP step for an ILD film, aggregation of an abrasive grain is difficult to occur, and high flatness is obtained, and provide a polishing method using the same. The polishing liquid for CMP according to the present invention is a polishing liquid for CMP containing an abrasive grain, an additive, and water, wherein the abrasive grain comprises a cerium-based particle, and the additive comprises a 4-pyrone-based compound and at least one of a nonionic surfactant or a cationic surfactant: [wherein X11, X12, and X13 each independently represent a hydrogen atom or a monovalent substituent.
    Type: Application
    Filed: December 24, 2010
    Publication date: December 13, 2012
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Masayuki Hanano, Eiichi Satou, Munehiro Oota, Kanshi Chinone
  • Publication number: 20110275285
    Abstract: The polishing solution for CMP according to the invention comprises abrasive grains, an additive and water, and the polishing solution comprises an organic compound satisfying specified conditions as the additive. The polishing method of the invention is for polishing of a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Application
    Filed: June 10, 2011
    Publication date: November 10, 2011
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Eiichi Satou, Munehiro Oota, Kanshi Chinone, Shigeru Nobe, Kazuhiro Enomoto, Tadahiro Kimura, Masato Fukasawa, Masanobu Habiro, Yousuke Hoshi
  • Publication number: 20110275217
    Abstract: The polishing solution for CMP of the invention comprises abrasive grains, a first additive and water, wherein the first additive is at least 1,2-benzoisothiazole-3(2H)-one or 2-aminothiazole. The polishing method of the invention is a polishing method for a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 10, 2011
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Eiichi Satou, Shigeru Nobe, Munehiro Oota, Masayuki Hanano, Shigeru Yoshikawa
  • Patent number: 5546903
    Abstract: A throttle valve control device having a traction control system includes a first control system which controls a throttle valve in accordance with movement of an accelerator pedal, a second control system which, upon a traction control of the vehicle, enforcedly pivots, with an aid of an electric motor, the throttle valve in a direction to reduce its open degree. An accelerator position sensor issues a first signal which represents the operation position of the first control system and an actuator position sensor issues a second signal which represents the operation position of the electric motor. A first device derives a first open degree of the throttle valve from the first signal and a second device derives a second open degree of the throttle valve from the second signal. A third device selects the smaller of the first and second open degrees of the throttle valve. The second control system is operated in accordance with both the second signal and the selected smaller open degree of the throttle valve.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: August 20, 1996
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Eiichi Satou, Masahiro Iriyama