Patents by Inventor Toshitada Takeuchi

Toshitada Takeuchi 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: 10401342
    Abstract: Disclosed herein are an evolved gas analyzer and a method for analyzing evolved gas, the apparatus cooling a sample holder in a short time without using excessive cooling performance and without providing the entire apparatus in an excessively large size, thereby enhancing analysis work efficiency. The apparatus 200 includes: a sample holder 20 holding a sample S; a heating unit 10 receiving the sample holder therein, and evolving a gas component G by heating the sample; a detecting means 110 detecting the gas component; a sample holder supporting unit 204L movably supporting the sample holder to move the sample holder to predetermined outer and inner positions of the heating unit; and a cooling unit 30 provided at an outside of the heating unit, and cooling the sample holder by being in direct or indirect contact with the sample holder, when the sample holder is moved to a discharging position.
    Type: Grant
    Filed: November 19, 2016
    Date of Patent: September 3, 2019
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Hideyuki Akiyama, Kentaro Yamada, Toshitada Takeuchi
  • Patent number: 9899198
    Abstract: Disclosed herein is a method for analyzing evolved gas and an evolved gas analyzer, the method correcting detection sensitivity differences in analysis devices, day-to-day variations thereof, thereby quantifying a measurement target with high accuracy. The method for analyzing evolved gas of the apparatus including: a sample holder; a heating unit evolving a gas component; an ion source generating ions by ionizing the gas component; a mass spectrometer detecting the gas component; and a gas channel through which mixed gas flows, the method including: operating a discharged flow rate controlling process of controlling a flow rate of the mixed gas discharged to outside; operating a sample holder cooling process of cooling the sample holder by bringing the sample holder into contact with a cooling unit; and operating a correction process including: correcting a mass spectrum position; calculating a sensitivity correction factor; and calculating a heating correction factor.
    Type: Grant
    Filed: November 19, 2016
    Date of Patent: February 20, 2018
    Assignee: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Hideyuki Akiyama, Kentaro Yamada, Masafumi Watanabe, Toshitada Takeuchi, Kantaro Maruoka
  • Patent number: 9683951
    Abstract: A sample holder for X-ray analysis is provided with: a first annular member; a second annular member configured to be inserted and fitted into the first annular member in a state where a first film is sandwiched between the first annular member and the second annular member while the first film is being stretched to cover a lower opening portion of the second annular member; and a third annular member configured to be inserted and fitted into the second annular member in a state where a second film is sandwiched between the second annular member and the third annular member while the second film is being stretched to cover a lower opening portion of the third annular member. The first film and the second film are configured to hold a sample for X-ray analysis by sandwiching the sample between the first film and the second film.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: June 20, 2017
    Assignee: Hitachi High-Tech Science Corporation
    Inventor: Toshitada Takeuchi
  • Publication number: 20170146503
    Abstract: Disclosed herein are an evolved gas analyzer and a method for analyzing evolved gas, the apparatus cooling a sample holder in a short time without using excessive cooling performance and without providing the entire apparatus in an excessively large size, thereby enhancing analysis work efficiency. The apparatus 200 includes: a sample holder 20 holding a sample S; a heating unit 10 receiving the sample holder therein, and evolving a gas component G by heating the sample; a detecting means 110 detecting the gas component; a sample holder supporting unit 204L movably supporting the sample holder to move the sample holder to predetermined outer and inner positions of the heating unit; and a cooling unit 30 provided at an outside of the heating unit, and cooling the sample holder by being in direct or indirect contact with the sample holder, when the sample holder is moved to a discharging position.
    Type: Application
    Filed: November 19, 2016
    Publication date: May 25, 2017
    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Hideyuki AKIYAMA, Kentaro YAMADA, Toshitada TAKEUCHI
  • Publication number: 20170148617
    Abstract: Disclosed herein is a method for analyzing evolved gas and an evolved gas analyzer, the method correcting detection sensitivity differences in analysis devices, day-to-day variations thereof, thereby quantifying a measurement target with high accuracy. The method for analyzing evolved gas of the apparatus including: a sample holder; a heating unit evolving a gas component; an ion source generating ions by ionizing the gas component; a mass spectrometer detecting the gas component; and a gas channel through which mixed gas flows, the method including: operating a discharged flow rate controlling process of controlling a flow rate of the mixed gas discharged to outside; operating a sample holder cooling process of cooling the sample holder by bringing the sample holder into contact with a cooling unit; and operating a correction process including: correcting a mass spectrum position; calculating a sensitivity correction factor; and calculating a heating correction factor.
    Type: Application
    Filed: November 19, 2016
    Publication date: May 25, 2017
    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Hideyuki AKIYAMA, Kentaro YAMADA, Masafumi WATANABE, Toshitada TAKEUCHI, Kantaro MARUOKA
  • Patent number: 9400255
    Abstract: An X-ray fluorescence spectrometer includes: a sample stage configured to place a sample thereon; an X-ray source configured to irradiate the sample with primary X-rays; a detector, which is configured to detect fluorescent X-rays produced from the sample irradiated with the primary X-rays, and which includes an X-ray incident window formed by a window material through which fluorescent X-rays is transmittable; and a gas blowing mechanism configured to blow a gas to at least one of an outer surface of the X-ray incident window and the sample stage.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: July 26, 2016
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Hiroaki Nohara, Yoshiki Matoba, Noriaki Sakai, Toshitada Takeuchi
  • Publication number: 20150226686
    Abstract: A sample holder for X-ray analysis is provided with: a first annular member; a second annular member configured to be inserted and fitted into the first annular member in a state where a first film is sandwiched between the first annular member and the second annular member while the first film is being stretched to cover a lower opening portion of the second annular member; and a third annular member configured to be inserted and fitted into the second annular member in a state where a second film is sandwiched between the second annular member and the third annular member while the second film is being stretched to cover a lower opening portion of the third annular member. The first film and the second film are configured to hold a sample for X-ray analysis by sandwiching the sample between the first film and the second film.
    Type: Application
    Filed: February 12, 2015
    Publication date: August 13, 2015
    Applicant: Hitachi High-Tech Science Corporation
    Inventor: Toshitada Takeuchi
  • Publication number: 20140294143
    Abstract: An X-ray fluorescence spectrometer includes: a sample stage configured to place a sample thereon; an X-ray source configured to irradiate the sample with primary X-rays; a detector, which is configured to detect fluorescent X-rays produced from the sample irradiated with the primary X-rays, and which includes an X-ray incident window formed by a window material through which fluorescent X-rays is transmittable; and a gas blowing mechanism configured to blow a gas to at least one of an outer surface of the X-ray incident window and the sample stage.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Applicant: Hitachi High-Tech Science Corporation
    Inventors: Hiroaki Nohara, Yoshiki Matoba, Noriaki Sakai, Toshitada Takeuchi
  • Patent number: 7500779
    Abstract: A thermal analysis apparatus possesses has a cylindrical furnace tube axially inserted in a cylindrical heating furnace, and a pair of sample holders extending axially inside the furnace tube. The furnace tube is supported by two axially spaced groups of butting members, each group having three or more butting members that are disposed in circumferentially spaced-apart relationship on the outside of the furnace tube and that butt against the furnace tube to restrain positional deviation thereof in a radial direction while permitting expansion and contraction thereof in the axial direction during heating of the furnace tube by the heating furnace.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 10, 2009
    Assignee: SII NanoTechnology Inc.
    Inventors: Toshitada Takeuchi, Masakatsu Hasuda
  • Publication number: 20070201533
    Abstract: A thermal analysis apparatus possesses a support base, a heating furnace which is approximately like a cylinder, and whose inside can be raised in its temperature, till a predetermined heating temperature, a heating furnace fixation part fixing the heating furnace to the support base, a furnace tube which is approximately like the cylinder, inserted through the heating furnace while having an interstice, and has been fixed in its base end part to the support base by a fixation member, a fixation means which makes the furnace tube capable of expanding or contracting in an axial direction, and positioning-fixes it in a radial direction, a sample holding means which holds a sample in an inside of a heating part of the furnace tube, that is a range capable of being heated by the heating furnace, and a temperature measurement means measuring a temperature change of the sample.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 30, 2007
    Inventors: Toshitada Takeuchi, Masakatsu Hasuda
  • Publication number: 20030219333
    Abstract: The object of the present invention is to provide a wafer support mechanism for a sample stage that does not require a special drive source for attaching and detaching a wafer to be provided within a sample chamber so as to eliminate problems with lining up drive portions occurring as a result of the drive source being provided outside so as to provide a stable and reliable mechanism that is not restricted by problems regarding environment.
    Type: Application
    Filed: April 9, 2003
    Publication date: November 27, 2003
    Inventor: Toshitada Takeuchi