Patents by Inventor Takeshi Hizawa

Takeshi Hizawa 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: 10748791
    Abstract: A chemical liquid treatment apparatus includes processing chambers; a chemical liquid feeding unit configured to cyclically feed a chemical liquid into the processing chambers; and a modifying unit. The modifying unit, when using a chemical liquid in which an effect thereof varies with a chemical liquid discharge time, is configured to calculate a variation of the effect of the chemical liquid based on the chemical liquid discharge time and is configured to modify the chemical liquid discharge time for each of the processing chambers based on the calculated variation of the effect of the chemical liquid and a cumulative time of the chemical liquid discharge time.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: August 18, 2020
    Assignee: KIOXIA CORPORATION
    Inventors: Hiroaki Yamada, Yoshihiro Ogawa, Takeshi Hizawa
  • Patent number: 10157756
    Abstract: A chemical liquid treatment apparatus includes processing chambers; a chemical liquid feeding unit configured to cyclically feed a chemical liquid into the processing chambers; and a modifying unit. The modifying unit, when using a chemical liquid in which an effect thereof varies with a chemical liquid discharge time, is configured to calculate a variation of the effect of the chemical liquid based on the chemical liquid discharge time and is configured to modify the chemical liquid discharge time for each of the processing chambers based on the calculated variation of the effect of the chemical liquid and a cumulative time of the chemical liquid discharge time.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: December 18, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Hiroaki Yamada, Yoshihiro Ogawa, Takeshi Hizawa
  • Publication number: 20180005854
    Abstract: A chemical liquid treatment apparatus includes processing chambers; a chemical liquid feeding unit configured to cyclically feed a chemical liquid into the processing chambers; and a modifying unit. The modifying unit, when using a chemical liquid in which an effect thereof varies with a chemical liquid discharge time, is configured to calculate a variation of the effect of the chemical liquid based on the chemical liquid discharge time and is configured to modify the chemical liquid discharge time for each of the processing chambers based on the calculated variation of the effect of the chemical liquid and a cumulative time of the chemical liquid discharge time.
    Type: Application
    Filed: September 19, 2017
    Publication date: January 4, 2018
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Hiroaki YAMADA, Yoshihiro OGAWA, Takeshi HIZAWA
  • Patent number: 9190262
    Abstract: A method of manufacturing a semiconductor device in which an insulating film is filled between patterns etched into a workpiece structure is disclosed. The method includes cleaning etch residues residing between the etched patterns by a first chemical liquid; rinsing the workpiece structure cleaned by the first chemical liquid by a rinse liquid; and coating the workpiece structure rinsed by the rinse liquid with a coating liquid for formation of the insulating film. The cleaning to the coating are carried out within the same processing chamber such that a liquid constantly exists between the patterns of the workpiece structure.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: November 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Hizawa, Nobuhide Yamada, Yoshihiro Ogawa, Masahiro Kiyotoshi
  • Publication number: 20150200116
    Abstract: A chemical liquid treatment apparatus includes processing chambers; a chemical liquid feeding unit configured to cyclically feed a chemical liquid into the processing chambers; and a modifying unit. The modifying unit, when using a chemical liquid in which an effect thereof varies with a chemical liquid discharge time, is configured to calculate a variation of the effect of the chemical liquid based on the chemical liquid discharge time and is configured to modify the chemical liquid discharge time for each of the processing chambers based on the calculated variation of the effect of the chemical liquid and a cumulative time of the chemical liquid discharge time.
    Type: Application
    Filed: August 22, 2014
    Publication date: July 16, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki YAMADA, Yoshihiro OGAWA, Takeshi HIZAWA
  • Patent number: 9073018
    Abstract: Disclosed is a micro mixer which includes a mixing plate (14) with a first channel-forming section and a second channel-forming section. The first channel-forming section has a first channel formed for a first fluid to flow therethrough, while the second channel-forming section has a second channel formed for a second fluid to flow therethrough. Between the first channel-forming section and the second channel-forming section, there is provided a combined channel in which the first fluid and the second fluid merge with each other. The outlet of the first channel and the outlet of the second channel are opposed to each other with the combined channel disposed therebetween. The position of the outlet of the first channel facing the center axis of the combined channel is included in or the same as the position of the outlet of the second channel facing the center axis.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: July 7, 2015
    Assignee: DIC CORPORATION
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Kiyoo Kamei
  • Patent number: 9024443
    Abstract: A semiconductor device according to the present embodiment includes a semiconductor substrate. A lower-layer wiring is provided above a surface of the semiconductor substrate. An interlayer dielectric film is provided on the lower-layer wiring and includes a four-layer stacked structure. A contact plug contains aluminum. The contact plug is filled in a contact hole formed in the interlayer dielectric film in such a manner that the contact plug reaches the lower-layer wiring. Two upper layers and two lower layers in the stacked structure respectively have tapers on an inner surface of the contact hole. The taper of two upper layers and the taper of two lower layers have different angles from each other.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Merii Inaba, Takeshi Hizawa
  • Patent number: 8759551
    Abstract: The invention provides a process for continuously producing a urethane (meth)acrylate, containing causing a mixed liquid of a compound (A) having a hydroxyl group and a (meth) acryloyl group and a compound (B) having an isocyanate group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the hydroxyl group of the compound (A) with the isocyanate group of the compound (B).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: June 24, 2014
    Assignee: DIC Corporation
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Hideki Watanabe
  • Publication number: 20140061929
    Abstract: A semiconductor device according to the present embodiment includes a semiconductor substrate. A lower-layer wiring is provided above a surface of the semiconductor substrate. An interlayer dielectric film is provided on the lower-layer wiring and includes a four-layer stacked structure. A contact plug contains aluminum. The contact plug is filled in a contact hole formed in the interlayer dielectric film in such a manner that the contact plug reaches the lower-layer wiring. Two upper layers and two lower layers in the stacked structure respectively have tapers on an inner surface of the contact hole. The taper of two upper layers and the taper of two lower layers have different angles from each other.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Merii INABA, Takeshi Hizawa
  • Publication number: 20140014142
    Abstract: A method of manufacturing a semiconductor device in which an insulating film is filled between patterns etched into a workpiece structure is disclosed. The method includes cleaning etch residues residing between the etched patterns by a first chemical liquid; rinsing the workpiece structure cleaned by the first chemical liquid by a rinse liquid; and coating the workpiece structure rinsed by the rinse liquid with a coating liquid for formation of the insulating film. The cleaning to the coating are carried out within the same processing chamber such that a liquid constantly exists between the patterns of the workpiece structure.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 16, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Hizawa, Nobuhide Yamada, Yoshihiro Ogawa, Masahiro Kiyotoshi
  • Patent number: 8557705
    Abstract: A method of manufacturing a semiconductor device in which an insulating film is filled between patterns etched into a workpiece structure is disclosed. The method includes cleaning etch residues residing between the etched patterns by a first chemical liquid; rinsing the workpiece structure cleaned by the first chemical liquid by a rinse liquid; and coating the workpiece structure rinsed by the rinse liquid with a coating liquid for formation of the insulating film. The cleaning to the coating are carried out within the same processing chamber such that a liquid constantly exists between the patterns of the workpiece structure.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: October 15, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Hizawa, Nobuhide Yamada, Yoshihiro Ogawa, Masahiro Kiyotoshi
  • Publication number: 20130114369
    Abstract: Disclosed is a micro mixer which includes a mixing plate (14) with a first channel-forming section and a second channel-forming section. The first channel-forming section has a first channel formed for a first fluid to flow therethrough, while the second channel-forming section has a second channel formed for a second fluid to flow therethrough. Between the first channel-forming section and the second channel-forming section, there is provided a combined channel in which the first fluid and the second fluid merge with each other. The outlet of the first channel and the outlet of the second channel are opposed to each other with the combined channel disposed therebetween. The position of the outlet of the first channel facing the center axis of the combined channel is included in or the same as the position of the outlet of the second channel facing the center axis.
    Type: Application
    Filed: June 23, 2011
    Publication date: May 9, 2013
    Applicant: DIC CORPORATION
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Kiyoo Kamei
  • Publication number: 20120094493
    Abstract: A method of manufacturing a semiconductor device in which an insulating film is filled between patterns etched into a workpiece structure is disclosed. The method includes cleaning etch residues residing between the etched patterns by a first chemical liquid; rinsing the workpiece structure cleaned by the first chemical liquid by a rinse liquid; and coating the workpiece structure rinsed by the rinse liquid with a coating liquid for formation of the insulating film. The cleaning to the coating are carried out within the same processing chamber such that a liquid constantly exists between the patterns of the workpiece structure.
    Type: Application
    Filed: September 19, 2011
    Publication date: April 19, 2012
    Inventors: Takeshi Hizawa, Nobuhide Yamada, Yoshihiro Ogawa, Masahiro Kiyotoshi
  • Patent number: 8148567
    Abstract: An object of the present invention is to provide a process for producing a urethane (meth)acrylate safely with good productivity, and for achieving the object, the invention provides a process for continuously producing a urethane (meth)acrylate, containing causing a mixed liquid of a compound (A) having a hydroxyl group and a (meth)acryloyl group and a compound (B) having an isocyanate group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the hydroxyl group of the compound (A) with the isocyanate group of the compound (B), in which the tubular microchannel in the reaction device has a space size making a fluid cross-sectional area, through which the mixed liquid passes densely, of from 0.1 to 4.0 mm2, and the process contains heating the heat-conducting reaction device to a temperature of from 100 to 250° C.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: April 3, 2012
    Assignee: DIC Corporation
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Hideki Watanabe
  • Publication number: 20110087041
    Abstract: An object of the present invention is to provide a process for producing a urethane (meth)acrylate safely with good productivity, and for achieving the object, the invention provides a process for continuously producing a urethane (meth)acrylate, containing causing a mixed liquid of a compound (A) having a hydroxyl group and a (meth)acryloyl group and a compound (B) having an isocyanate group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the hydroxyl group of the compound (A) with the isocyanate group of the compound (B), in which the tubular microchannel in the reaction device has a space size making a fluid cross-sectional area, through which the mixed liquid passes densely, of from 0.1 to 4.0 mm2, and the process contains heating the heat-conducting reaction device to a temperature of from 100 to 250° C.
    Type: Application
    Filed: March 12, 2009
    Publication date: April 14, 2011
    Applicant: DIC Corporation
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Hideki Watanbabe
  • Publication number: 20110071307
    Abstract: An object of the present invention is to provide a process for producing an epoxy (meth)acrylate safely with good productivity, and the invention provides a process for continuously producing an epoxy (meth)acrylate, containing causing a mixed liquid of a compound (A) having a carboxyl group and a (meth)acryloyl group and a compound (B) having an epoxy group to pass continuously and densely through a tubular microchannel formed in a heat-conducting reaction device, and reacting the carboxyl group of the compound (A) with the epoxy group of the compound (B), in which the tubular microchannel in the reaction device has a space size making a fluid cross-sectional area, through which the mixed liquid passes densely, of from 0.1 to 4.0 mm2, and the process contains heating the heat-conducting reaction device to a temperature of from 150 to 260° C., reacting the mixed liquid to provide a Reynolds number of a reaction liquid passing through the tubular microchannel in a range of from 0.
    Type: Application
    Filed: March 12, 2009
    Publication date: March 24, 2011
    Applicant: DIC Corporation
    Inventors: Fumihiko Ishiyama, Takeshi Hizawa, Hideki Watanabe
  • Patent number: 7826980
    Abstract: A sensitivity of a cumulative chemical/physical phenomenon detecting apparatus is improved. Prior to transferring charges at a sensing section to a floating diffusion section, the charges remaining at the sensing section are removed from the sensing section by a potential barrier formed between the sensing section and a charge injection adjusting section.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: November 2, 2010
    Assignee: National University Corporation Toyohashi University of Technology
    Inventors: Kazuaki Sawada, Takeshi Hizawa, Junichi Matsuo, Yuki Maruyama
  • Publication number: 20080231253
    Abstract: A sensitivity of a cumulative chemical/physical phenomenon detecting apparatus is improved. Prior to transferring charges at a sensing section to a floating diffusion section, the charges remaining at the sensing section are removed from the sensing section by a potential barrier formed between the sensing section and a charge injection adjusting section.
    Type: Application
    Filed: March 13, 2006
    Publication date: September 25, 2008
    Inventors: Kazuaki Sawada, Takeshi Hizawa, Junichi Matsuo, Yuki Maruyama