Patents by Inventor Yuichiro Sakamoto

Yuichiro Sakamoto 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: 11034814
    Abstract: To provide a core material for a fiber reinforced composite having an excellent workability upon being composited with a fiber reinforcing material. A core material for a fiber reinforced composite of the present disclosure comprises a molded product of expanded beads containing a thermoplastic resin, and having a heat shrinkage onset temperature of 80° C. or higher, a linear expansion coefficient of 10×10?5 mm/mm·° C. or less, and a ratio of change in dimensions with heating at 130° C. of ?4.0% to 0%.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 15, 2021
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yumiko Kato, Shintaro Wakimura, Yuichiro Sakamoto, Tomoyuki Taniguchi
  • Publication number: 20200140644
    Abstract: To provide a core material for a fiber reinforced composite having an excellent workability upon being composited with a fiber reinforcing material. A core material for a fiber reinforced composite of the present disclosure comprises a molded product of expanded beads containing a thermoplastic resin, and having a heat shrinkage onset temperature of 80° C. or higher, a linear expansion coefficient of 10×10?5 mm/mm·° C. or less, and a ratio of change in dimensions with heating at 130° C. of ?4.0% to 0%.
    Type: Application
    Filed: April 2, 2018
    Publication date: May 7, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yumiko KATO, Shintaro WAKIMURA, Yuichiro SAKAMOTO, Tomoyuki TANIGUCHI
  • Patent number: 9728381
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 8, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Patent number: 9437402
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 6, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Publication number: 20150083332
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akihiro KIKUCHI, Satoshi KAYAMORI, Shinya SHIMA, Yuichiro SAKAMOTO, Kimihiro HIGUCHI, Kaoru OOHASHI, Takehiro UEDA, Munehiro SHIBUYA, Tadashi GONDAI
  • Publication number: 20150083333
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akihiro KIKUCHI, Satoshi KAYAMORI, Shinya SHIMA, Yuichiro SAKAMOTO, Kimihiro HIGUCHI, Kaoru OOHASHI, Takehiro UEDA, Munehiro SHIBUYA, Tadashi GONDAI
  • Patent number: 8904957
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 9, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Patent number: 8488622
    Abstract: A jitter control apparatus used in a multiplexing apparatus multiplexing a plurality of signals by asynchronous mapping, includes: a detection unit configured to detect a frequency of timing compensation processes in the asynchronous mapping for each of the plurality of signals; and a selection unit configured to select, on basis of a detection result by the detection unit, a clock signal to be used as a carrier clock for the plurality of signals, from a plurality of clock signals including clock signals extracted from at least one of the plurality of signals.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 16, 2013
    Assignee: Fujitsu Limited
    Inventors: Yuichiro Sakamoto, Hisayuki Ojima
  • Patent number: 8387562
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 5, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Publication number: 20120006492
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 12, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akihiro KIKUCHI, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Patent number: 8056503
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., ?400 to ?600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: November 15, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Patent number: 7794617
    Abstract: A plasma etching method includes the step of: etching a silicon layer of a target object by using a plasma generated from a processing gas containing a fluorocarbon gas, a hydrofluorocarbon gas, a rare gas and an O2 gas and by employing a patterned resist film as a mask. The target object includes the silicon layer whose main component is silicon and the patterned resist film formed over the silicon layer.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: September 14, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Akihiro Kikuchi, Takashi Tsunoda, Yuichiro Sakamoto
  • Publication number: 20100074386
    Abstract: A jitter control apparatus used in a multiplexing apparatus multiplexing a plurality of signals by asynchronous mapping, includes: a detection unit configured to detect a frequency of timing compensation processes in the asynchronous mapping for each of the plurality of signals; and a selection unit configured to select, on basis of a detection result by the detection unit, a clock signal to be used as a carrier clock for the plurality of signals, from a plurality of clock signals including clock signals extracted from at least one of the plurality of signals.
    Type: Application
    Filed: December 2, 2009
    Publication date: March 25, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Yuichiro SAKAMOTO, Hisayuki Ojima
  • Patent number: 7655570
    Abstract: A difference in etching rate between the coated silicon based insulating film and any of other kinds of silicon-based insulating films is reduced by using nitrogen gas as a part of the etching gas. Therefore, the underlying film may not be exposed to the etching gas for a long time, so that degradation or deterioration of the underlying film can be prevented.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: February 2, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Akihiro Kikuchi, Yuichiro Sakamoto, Takashi Tsunoda
  • Publication number: 20080102272
    Abstract: The present invention relates to a wrapping film comprising, as at least one surface layer, a resin composition (D) layer comprising 0.5 to 5 parts by weight of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 30 to 60% by weight (B) and 5 to 40 parts by weight of a liquid additive (C) based on 100 parts by weight of an aliphatic polyester resin (A).
    Type: Application
    Filed: September 21, 2007
    Publication date: May 1, 2008
    Inventors: Yuichiro Sakamoto, Koji Ishikawa
  • Publication number: 20070287297
    Abstract: A plasma etching method includes the step of: etching a silicon layer of a target object by using a plasma generated from a processing gas containing a fluorocarbon gas, a hydrofluorocarbon gas, a rare gas and an O2 gas and by employing a patterned resist film as a mask. The target object includes the silicon layer whose main component is silicon and the patterned resist film formed over the silicon layer.
    Type: Application
    Filed: March 22, 2007
    Publication date: December 13, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akihiro Kikuchi, Takashi Tsunoda, Yuichiro Sakamoto
  • Patent number: 7226655
    Abstract: A wrap film comprising a layer of resin composition (C) as at least one surface layer, wherein resin composition (C) comprises 100 parts by mass of an aliphatic polyester resin (A) and 5 to 40 parts by mass of a liquid additive (B), and having a surface roughness of 0.5 to 4.0 nm, a tensile modulus of 400 to 1500 MPa, a heat resistant temperature of 130° C. or more and cling energy of 0.5 to 2.5 mJ, and a wrap product having the wrap film placed in a box. There is provided an easy-to-use wrap film having cling property and pulling-out property.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: June 5, 2007
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaru Iriya, Yuichiro Sakamoto
  • Publication number: 20060154472
    Abstract: A difference in etching rate between the coated silicon based insulating film and any of other kinds of silicon-based insulating films is reduced by using nitrogen gas as a part of the etching gas. Therefore, the underlying film may not be exposed to the etching gas for a long time, so that degradation or deterioration of the underlying film can be prevented.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 13, 2006
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akihiro Kikuchi, Yuichiro Sakamoto, Takashi Tsunoda
  • Publication number: 20040177927
    Abstract: An etching chamber 1 incorporates a focus ring 9 so as to surround a semiconductor wafer W provided on a lower electrode 4. The plasma processor is provided with an electric potential control DC power supply 33 to control the electric potential of this focus ring 9, and so constituted that the lower electrode 4 is supplied with a DC voltage of, e.g., −400 to −600 V to control the electric potential of the focus ring 9. This constitution prevents surface arcing from developing along the surface of a substrate to be processed.
    Type: Application
    Filed: May 6, 2004
    Publication date: September 16, 2004
    Inventors: Akihiro Kikuchi, Satoshi Kayamori, Shinya Shima, Yuichiro Sakamoto, Kimihiro Higuchi, Kaoru Oohashi, Takehiro Ueda, Munehiro Shibuya, Tadashi Gondai
  • Publication number: 20040086667
    Abstract: A wrap film comprising a layer of resin composition (C) as at least one surface layer, wherein resin composition (C) comprises 100 parts by mass of an aliphatic polyester resin (A) and 5 to 40 parts by mass of a liquid additive (B), and having a surface roughness of 0.5 to 4.0 nm, a tensile modulus of 400 to 1500 MPa, a heat resistant temperature of 130° C. or more and cling energy of 0.5 to 2.5 mJ, and a wrap product having the wrap film placed in a box. There is provided an easy-to-use wrap film having cling property and pulling-out property.
    Type: Application
    Filed: July 21, 2003
    Publication date: May 6, 2004
    Inventors: Masaru Iriya, Yuichiro Sakamoto