Patents by Inventor Yo Yamamoto

Yo Yamamoto 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: 20150228451
    Abstract: A charged particle beam apparatus includes: a charged particle beam column configured to irradiate an irradiation target with a charged particle beam; a detector configured to detect secondary charged particles emitted from the irradiation target by the irradiation of the charged particle beam; a needle arranged in an irradiation area of the charged particle beam; a needle actuator configured to actuate the needle; and a controller configured to control the needle actuator to actuate the needle along a movement route that is configured by a preset target position and preset way points. The controller controls the needle actuator to set an actuating direction of the needle for each of the way points.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 13, 2015
    Inventors: Atsushi UEMOTO, Tatsuya ASAHATA, Hidekazu SUZUKI, Yo YAMAMOTO
  • Patent number: 9024280
    Abstract: A composite charged particle beam apparatus comprises an FIB column and an SEM column arranged so that the ion and the electron beam irradition axes intersect with each other substantially at a right angle. A sample stage mounts a sample, and a detector detects secondary particles generated from the sample when irradiated with the ion beam or the electron beam. An observation image formation portion forms an FIB image and an SEM image based on a detection signal of the detector. An optical microscope observes the sample, and a display portion displays the FIB image, the SEM image and an optical microscope image. A stage control portion changes the coordinate system of the sample stage to any selected one of the coordinate systems of the FIB image, the SEM image and the optical microscope image.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: May 5, 2015
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Atsushi Uemoto, Yo Yamamoto, Tatsuya Asahata
  • Publication number: 20150065335
    Abstract: To contribute to the improvement of catalytic activity of a lower hydrocarbon aromatization catalyst, which converts a lower hydrocarbon(s) to an aromatic compound(s), and to the improvement of compactability of the catalyst. The lower hydrocarbon aromatization catalyst is obtained by compacting a mixture obtained by mixing a metallosilicate supporting thereon a catalyst metal and having a large grain size with a metallosilicate supporting thereon a catalyst metal and having a small grain size. As the metallosilicate having a large grain size, one having a grain size of from 1.0 ?m to 5.0 ?m is used. As the metallosilicate having a small grain size, one having a grain size of from 0.1 ?m to 1.0 ?m is used. The percentage of the metallosilicate having a large grain size is adjusted to from 20% to 80%, relative to mass of the lower hydrocarbon aromatization catalyst.
    Type: Application
    Filed: February 28, 2013
    Publication date: March 5, 2015
    Applicant: MEIDENSHA CORPORATION
    Inventors: Hongtao Ma, Yo Yamamoto
  • Patent number: 8698105
    Abstract: A charged particle beam apparatus which is able to adjust charged particle optics easily in a short time with a high degree of accuracy and a method of adjusting charged particle optics are provided.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: April 15, 2014
    Assignee: SII NanoTechnology
    Inventors: Takashi Ogawa, Yo Yamamoto, Hiroshi Matsumura
  • Patent number: 8642980
    Abstract: Provided is a composite charged particle beam apparatus, including: an electron beam column for irradiating a sample with an electron beam; an ion beam column for irradiating the sample with an ion beam to perform etching processing; a sample stage drive portion for moving a sample stage in an irradiation axis direction of the electron beam; and a column adjusting portion for moving the ion beam column relatively to a sample chamber such that the sample is irradiated with the ion beam at a position irradiated with the electron beam.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 4, 2014
    Assignee: Hitachi High-Tech Science Corporation
    Inventors: Xin Man, Yo Yamamoto, Atsushi Uemoto, Tatsuya Asahata
  • Patent number: 8558045
    Abstract: A catalyst for aromatizing a lower hydrocarbon, in order to increase the amount of production of useful aromatic compounds, such as benzene and toluene, by improving the methane conversion rate, the benzene formation rate, the naphthalene formation rate and the BTX formation rate (or a total formation rate of benzene, toluene and xylene) is such that molybdenum and silver are loaded on a metallosilicate as a substrate. It is more preferable to obtain the aromatizing catalyst by loading molybdenum and silver after modifying a zeolite formed of the metallosilicate with a silane compound that has a molecular diameter larger than a pore diameter of the zeolite and that has an amino group, which selectively reacts at a Bronsted acid point of the zeolite, and a straight-chain hydrocarbon group.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: October 15, 2013
    Assignee: Meidensha Corporation
    Inventors: Shinichi Yamada, Tomohiro Yamada, Yuji Ogawa, Takuya Hatagishi, Yo Yamamoto, Yoshio Sugiyama
  • Publication number: 20130248735
    Abstract: Provided is a composite charged particle beam apparatus, including: an electron beam column for irradiating a sample with an electron beam; an ion beam column for irradiating the sample with an ion beam to perform etching processing; a sample stage drive portion for moving a sample stage in an irradiation axis direction of the electron beam; and a column adjusting portion for moving the ion beam column relatively to a sample chamber such that the sample is irradiated with the ion beam at a position irradiated with the electron beam.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 26, 2013
    Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION
    Inventors: Xin MAN, Yo YAMAMOTO, Atsushi UEMOTO, Tatsuya ASAHATA
  • Publication number: 20130082176
    Abstract: Provided is a composite charged particle beam apparatus, including: an FIB column (1); an SEM column (2), which is arranged substantially at a right angle with respect to the FIB column (1); a sample stage (3) for mounting a sample (4); a secondary electron detector (5) for detecting a secondary particle generated from the sample (4); an observation image formation portion (8) for forming an FIB image and an SEM image based on a detection signal; and a display portion (9) for displaying the FIB image and the SEM image in which a horizontal direction of the sample in the FIB image and a horizontal direction of the sample in the SEM image are the same.
    Type: Application
    Filed: September 18, 2012
    Publication date: April 4, 2013
    Inventors: Yo YAMAMOTO, Xin MAN, Tatsuya ASAHATA
  • Publication number: 20130075606
    Abstract: Provided is a composite charged particle beam apparatus, including: a focused ion beam column (4); an electron beam column (6) orthogonal to the focused ion beam column (4); a sample stage (2) for moving a sample (11); an optical microscope (14) for observing the sample (11); a display portion (12, 13) capable of displaying a focused ion beam image, an electron beam image, and an optical microscope image, and a stage control portion (3) for moving the sample stage (2) in accordance with a coordinate system of each image.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 28, 2013
    Inventors: Atsushi UEMOTO, Yo YAMAMOTO, Tatsuya ASAHATA
  • Publication number: 20130012747
    Abstract: In manufacturing aromatic hydrocarbons by causing a contact reaction between a lower hydrocarbon and a catalyst, the aromatic hydrocarbons are stably produced over a long period of time while maintaining high aromatic hydrocarbon yields. The process includes a reaction process of initiating the contact reaction between the lower hydrocarbon and the catalyst thereby obtaining the aromatic hydrocarbons and hydrogen, and a regeneration process of regenerating the catalytic activity by bringing hydrogen into contact with the catalyst used in the reaction process. The reaction process and the regeneration process are repeated thereby producing the aromatic hydrocarbons and hydrogen. In the reaction process, carbon monoxide is added to the lower hydrocarbons and additionally a reaction temperature is set at higher than 800° C.
    Type: Application
    Filed: February 10, 2011
    Publication date: January 10, 2013
    Applicant: Meidensha Corporation
    Inventors: Hongtao Ma, Yo Yamamoto, Yuji Ogawa
  • Patent number: 8274049
    Abstract: There is provided a sample processing and observing method including irradiating a focused ion beam to a sample to form an observed surface, irradiating an electron beam to the observed surface to form an observed image, removing the surface opposite to the observed surface of the sample, forming a lamella including the observed surface and obtaining a transmission observed image for the lamella.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: September 25, 2012
    Assignee: SII NanoTechnology Inc.
    Inventors: Keiichi Tanaka, Yo Yamamoto, Xin Man, Junichi Tashiro, Toshiaki Fujii
  • Patent number: 8124932
    Abstract: A charged particle beam apparatus includes a charged particle source, an aperture, an object lens, an observing unit, an aperture driving portion, and a control portion. The control portion includes a spot pattern forming portion that forms a plurality of spot patterns on a surface of a sample by irradiating a charged particle beam, an analyzing portion that calculates a position of a spot center of the spot pattern and a geometrical center position of a halo, and an adjusting position determining portion that calculates an adjusting position based on a position of intersecting lines connecting the positions of the spot centers of the respective spot patterns and the center position of the halo. In this manner, the position of the aperture can be easily and accurately adjusted in a short period of time by moving the center axis of the aperture to the adjusting position.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: February 28, 2012
    Assignee: SII NanoTechnology Inc.
    Inventors: Takashi Ogawa, Yo Yamamoto, Hiroshi Matsumura
  • Publication number: 20110275873
    Abstract: [Task] To produce an aromatic hydrocarbon stably for a long time while maintaining a high aromatic hydrocarbon yield, when producing an aromatic hydrocarbon by a catalytic reaction of a lower hydrocarbon with a catalyst. [Solving Means] An aromatic hydrocarbon is produced by providing a reaction step to obtain an aromatic hydrocarbon by conducting a catalytic reaction of a lower hydrocarbon with a catalyst and a regeneration step to regenerate the catalyst used in the reaction step, and by repeating the reaction step and the regeneration step. In the reaction step, carbon dioxide or carbon monoxide is added to the lower hydrocarbon, and the reaction temperature is made to be higher than 800° C.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 10, 2011
    Inventors: Yo Yamamoto, Tomohiro Yamada
  • Publication number: 20110226948
    Abstract: There is provided a sample processing and observing method including irradiating a focused ion beam to a sample to form an observed surface, irradiating an electron beam to the observed surface to form an observed image, removing the surface opposite to the observed surface of the sample, forming a lamella including the observed surface and obtaining a transmission observed image for the lamella.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 22, 2011
    Inventors: Keiichi Tanaka, Yo Yamamoto, Xin Man, Junichi Tashiro, Toshiaki Fujii
  • Patent number: 7973280
    Abstract: An apparatus is provided that precisely conduct ion beam etching to a sample having the properties of which easily change by electron beam irradiation with no loss of ease of operation and throughput. An apparatus includes an ion beam lens barrel and an electron beam lens barrel, which can observe or measure the conditions of a sample with an electron beam in the process of etching with an ion beam, wherein first, an observation image is obtained that includes the entire process area formed by secondary signals generated by an electron beam, secondly, an irradiation permit area and an irradiation inhibit area are defined in the observation image, and thirdly, electron beam irradiation is restricted only to the irradiation permit area.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: July 5, 2011
    Assignee: SII Nanotechnology Inc.
    Inventors: Haruo Takahashi, Yutaka Ikku, Yo Yamamoto, Kouji Iwasaki
  • Publication number: 20100137666
    Abstract: A catalyst for aromatizing a lower hydrocarbon, in order to increase the amount of production of useful aromatic compounds, such as benzene and toluene, by improving the methane conversion rate, the benzene formation rate, the naphthalene formation rate and the BTX formation rate (or a total formation rate of benzene, toluene and xylene) is such that molybdenum and silver are loaded on a metallosilicate as a substrate. It is more preferable to obtain the aromatizing catalyst by loading molybdenum and silver after modifying a zeolite formed of the metallosilicate with a silane compound that has a molecular diameter larger than a pore diameter of the zeolite and that has an amino group, which selectively reacts at a Bronsted acid point of the zeolite, and a straight-chain hydrocarbon group.
    Type: Application
    Filed: March 28, 2008
    Publication date: June 3, 2010
    Inventors: Shinichi Yamada, Tomohiro Yamada, Yuji Ogawa, Takuya Hatagishi, Yo Yamamoto, Yoshio Sugiyama
  • Patent number: 7718981
    Abstract: There is provided a method of arranging, as a composite charged-particle beam system, a gas ion beam apparatus, an FIB and an SEM in order to efficiently prepare a TEM sample. The composite charged-particle beam system includes an FIB lens-barrel 1, an SEM lens-barrel 2, a gas ion beam lens-barrel 3, and a rotary sample stage 9 having an eucentric tilt mechanism and a rotating shaft 10 orthogonal to an eucentric tilt axis 8. In the composite charged-particle beam system, an arrangement is made such that a focused ion beam 4, an electron beam 5 and a gas ion beam 6 intersect at a single point, an axis of the FIB lens-barrel 1 and an axis of the SEM lens barrel 2 are orthogonal to the eucentric tilt axis 8, respectively, and the axis of the FIB lens-barrel 1, an axis of the gas ion beam lens-barrel 3 and the eucentric tilt axis 8 are in one plane.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 18, 2010
    Assignee: SII NanoTechnology Inc.
    Inventors: Haruo Takahashi, Yo Yamamoto, Toshiaki Fujii
  • Publication number: 20100116984
    Abstract: A charged particle beam apparatus which is able to adjust charged particle optics easily in a short time with a high degree of accuracy and a method of adjusting charged particle optics are provided.
    Type: Application
    Filed: February 4, 2008
    Publication date: May 13, 2010
    Inventors: Takashi Ogawa, Yo Yamamoto, Hiroshi Matsumura
  • Publication number: 20090242757
    Abstract: There are provided a charged particle beam apparatus and a method of adjusting an axis of an aperture capable of adjusting a position of a center axis of the aperture easily and accurately in a short period of time. A charged particle beam apparatus 1 includes a charged particle source 9, an aperture 18, an object lens 12, observing means 32, an aperture driving portion 19, and a control portion 30.
    Type: Application
    Filed: August 3, 2007
    Publication date: October 1, 2009
    Inventors: Takashi Ogawa, Yo Yamamoto, Hiroshi Matsumura
  • Publication number: 20090206254
    Abstract: An apparatus is provided that precisely conduct ion beam etching to a sample having the properties of which easily change by electron beam irradiation with no loss of ease of operation and throughput. An apparatus includes an ion beam lens barrel and an electron beam lens barrel, which can observe or measure the conditions of a sample with an electron beam in the process of etching with an ion beam, wherein first, an observation image is obtained that includes the entire process area formed by secondary signals generated by an electron beam, secondly, an irradiation permit area and an irradiation inhibit area are defined in the observation image, and thirdly, electron beam irradiation is restricted only to the irradiation permit area.
    Type: Application
    Filed: February 11, 2009
    Publication date: August 20, 2009
    Inventors: Haruo Takahashi, Yutaka Ikku, Yo Yamamoto, Kouji Iwasaki