Patents by Inventor Tetsuya Yokota

Tetsuya Yokota 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: 20240240183
    Abstract: A problem to be solved by the present invention is to provide a double-stranded nucleic acid complex having a reduced toxicity whose effectiveness is not impaired. Provided is a double-stranded nucleic acid complex comprising a first nucleic acid strand and a second nucleic acid strand, wherein: said first nucleic acid strand is capable of hybridizing to at least part of a target gene or a transcription product thereof, and has an antisense effect on said target gene or transcription product thereof, said second nucleic acid strand comprises a base sequence complementary to said first nucleic acid strand, and said first nucleic acid strand and/or said second nucleic acid strand comprises at least one bridged non-natural nucleoside represented by formula (I) or formula (II) (wherein R represents a hydrogen atom or a methyl group).
    Type: Application
    Filed: May 24, 2022
    Publication date: July 18, 2024
    Applicants: NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY, OSAKA UNIVERSITY
    Inventors: Takanori YOKOTA, Tetsuya NAGATA, Kotaro YOSHIOKA, Satoshi OBIKA
  • Patent number: 10405817
    Abstract: An X-ray image diagnosis apparatus includes an X-ray tube, an X-ray detector, a fluid information acquisition unit, a registration unit, and a capturing direction controller. The X-ray tube emits X-rays toward a subject. The X-ray detector detects the X-rays having passed through the subject. The fluid information acquisition unit acquires fluid information on a target site including a region of interest of the subject captured by an ultrasound image diagnosis apparatus. The registration unit extracts position information of a probe of the ultrasound image diagnosis apparatus. The capturing direction controller controls capturing direction for capturing the target site based on the position information and a direction in which a fluid flows indicated by the fluid information.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: September 10, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Satoshi Wakai, Tetsuya Yokota
  • Patent number: 10120052
    Abstract: In one embodiment, a medical image processing apparatus includes a display and processing circuitry. The processing circuitry is configured to (a) calculate fluid information including flow-velocity vectors based on three-dimensional image data of plural time phases, which are acquired by a phase contrast method of magnetic resonance imaging, and in which fluid flowing inside a lumen is depicted, (b) identify a branching position where a second lumen branches from a first lumen, based on change in flow volume of fluid flowing inside the first lumen along an extending direction of the first lumen, and (c) cause the display to display an analysis result including fluid information of fluid flowing inside the second lumen, based on the branching position.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: November 6, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Shuhei Bannae, Shigeharu Ohyu, Masashi Yoshida, Yoshihiro Ikeda, Fumiki Nakano, Mitsukazu Kamata, Tetsuya Yokota, Tatsuya Kimoto, Masao Yui, Tomohisa Fukunaga, Shigehide Kuhara, Kota Aoyagi
  • Patent number: 9898899
    Abstract: Probability of prize occurrence is easily controlled without provision of a blank between symbols on a reel. A gaming machine comprises: a lower image display panel configured to variably display a plurality of symbol arrays with a plurality of symbols including normal symbols and specific symbols more advantageous than the normal symbols, and then display a game result by rearranging the symbols in a symbol display region containing a matrix of cells; bet buttons capable of receiving a bet; and a controller configured to run a normal game which rearranges symbols on the symbol display device on condition that a bet is placed, the controller is configured to modify the symbols arrayed in the plurality of symbol arrays, so that the ratios of the specific symbols to the total number of the symbols in all the symbol arrays increases with an increase in the bet amount.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: February 20, 2018
    Assignees: Universal Entertainment Corporation, Aruze Gaming America, Inc.
    Inventors: Keiichi Kojima, Hiroshi Takahashi, Tetsuya Yokota, Yukinori Inamura, Takeshi Narita, Yuji Miyagawa, Takuto Nakayama, Atsuya Takano, Erika Turchi, Toshihiko Honda, Keisuke Kajino
  • Patent number: 9836921
    Abstract: A gaming machine achieves a new entertainment characteristic by adding a new characteristic to selection of a bonus type. A gaming machine comprises: a lower image display panel configured to display selectable images in a bonus game which is triggered in a normal game, wherein the selectable images are changed to any one of bonus rank images corresponding to bonus types every time selection is made; a control panel enabling selection of one of the selectable images; and a controller configured to control the display panel so that only the number of the bonus rank images corresponding to the bonus determined in advance in the bonus game reaches a predetermined number, wherein the controller displays a bonus rank image corresponding to a high rank bonus type out of bonus types, before the number of the bonus rank images corresponding to the bonus determined in advance reaches the predetermined number.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: December 5, 2017
    Assignees: UNIVERSAL ENTERTAINMENT CORPORATION, ARUZE GAMING AMERICA, INC.
    Inventors: Yukinori Inamura, Hiroshi Takahashi, Tetsuya Yokota, Nakayasu Tsukahara, Takeshi Narita
  • Patent number: 9679377
    Abstract: According to embodiment, a medical image processing apparatus includes input interface circuitry and processing circuitry. The input interface circuitry inputs at least three landmarks in a first and second slice image group. The processing circuitry determines, in each of the first and second slice image group, a first axis connecting two points in the landmarks and a second axis that passes through another point different from the two points and is orthogonal to the first axis. The processing circuitry performs a registration between first slice images belonging to the first slice image group and second slice images belonging to the second slice image group by using the first and second axes in the first slice image group and the first and second axes in the second slice image group.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: June 13, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yokota, Satoshi Wakai
  • Patent number: 9659366
    Abstract: An image processing display and an image processing display program that can prevent interference with catheter treatment even when the distal end of a catheter is located behind a treatment apparatus on X-ray fluoroscopic images. The image processing display displays X-ray fluoroscopic images to be obtained by looking through a region including blood vessels using X-rays during treatment, and includes a treatment apparatus image extractor and an image processor. The treatment apparatus image extractor, based on X-ray fluoroscopic images, extracts treatment apparatus images representing the treatment apparatus having the property of absorbing X-rays. The image processor determines the distal end position of the catheter to superimpose and display images representing the determined distal end position of the catheter on the region of the X-ray fluoroscopic images showing the treatment apparatus.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 23, 2017
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yokota, Tomohiro Kawasaki, Satoshi Wakai
  • Publication number: 20160232660
    Abstract: In one embodiment, a medical image processing apparatus includes a display and processing circuitry. The processing circuitry is configured to (a) calculate fluid information including flow-velocity vectors based on three-dimensional image data of plural time phases, which are acquired by a phase contrast method of magnetic resonance imaging, and in which fluid flowing inside a lumen is depicted, (b) identify a branching position where a second lumen branches from a first lumen, based on change in flow volume of fluid flowing inside the first lumen along an extending direction of the first lumen, and (c) cause the display to display an analysis result including fluid information of fluid flowing inside the second lumen, based on the branching position.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 11, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Shuhei BANNAE, Shigeharu OHYU, Masashi YOSHIDA, Yoshihiro IKEDA, Fumiki NAKANO, Mitsukazu KAMATA, Tetsuya YOKOTA, Tatsuya KIMOTO, Masao YUI, Tomohisa FUKUNAGA, Shigehide KUHARA, Kota AOYAGI
  • Publication number: 20160206260
    Abstract: An X-ray image diagnosis apparatus includes an X-ray tube, an X-ray detector, a fluid information acquisition unit, a registration unit, and a capturing direction controller. The X-ray tube emits X-rays toward a subject. The X-ray detector detects the X-rays having passed through the subject. The fluid information acquisition unit acquires fluid information on a target site including a region of interest of the subject captured by an ultrasound image diagnosis apparatus. The registration unit extracts position information of a probe of the ultrasound image diagnosis apparatus. The capturing direction controller controls capturing direction for capturing the target site based on the position information and a direction in which a fluid flows indicated by the fluid information.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 21, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Satoshi WAKAI, Tetsuya YOKOTA
  • Publication number: 20160063697
    Abstract: According to embodiment, a medical image processing apparatus includes input interface circuitry and processing circuitry. The input interface circuitry inputs at least three landmarks in a first and second slice image group. The processing circuitry determines, in each of the first and second slice image group, a first axis connecting two points in the landmarks and a second axis that passes through another point different from the two points and is orthogonal to the first axis. The processing circuitry performs a registration between first slice images belonging to the first slice image group and second slice images belonging to the second slice image group by using the first and second axes in the first slice image group and the first and second axes in the second slice image group.
    Type: Application
    Filed: October 27, 2015
    Publication date: March 3, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tetsuya YOKOTA, Satoshi Wakai
  • Publication number: 20160042614
    Abstract: Probability of prize occurrence is easily controlled without provision of a blank between symbols on a reel. A gaming machine comprises: a lower image display panel configured to variably display a plurality of symbol arrays with a plurality of symbols including normal symbols and specific symbols more advantageous than the normal symbols, and then display a game result by rearranging the symbols in a symbol display region containing a matrix of cells; bet buttons capable of receiving a bet; and a controller configured to run a normal game which rearranges symbols on the symbol display device on condition that a bet is placed, the controller is configured to modify the symbols arrayed in the plurality of symbol arrays, so that the ratios of the specific symbols to the total number of the symbols in all the symbol arrays increases with an increase in the bet amount.
    Type: Application
    Filed: August 6, 2015
    Publication date: February 11, 2016
    Inventors: Keiichi KOJIMA, Hiroshi TAKAHASHI, Tetsuya YOKOTA, Yukinori INAMURA, Takeshi NARITA, Yuji MIYAGAWA, Takuto NAKAYAMA, Atsuya TAKANO, Erika TURCHI, Toshihiko HONDA, Keisuke KAJINO
  • Publication number: 20160042608
    Abstract: A gaming machine achieves a new entertainment characteristic by adding a new characteristic to selection of a bonus type. A gaming machine comprises: a lower image display panel configured to display selectable images in a bonus game which is triggered in a normal game, wherein the selectable images are changed to any one of bonus rank images corresponding to bonus types every time selection is made; a control panel enabling selection of one of the selectable images; and a controller configured to control the display panel so that only the number of the bonus rank images corresponding to the bonus determined in advance in the bonus game reaches a predetermined number, wherein the controller displays a bonus rank image corresponding to a high rank bonus type out of bonus types, before the number of the bonus rank images corresponding to the bonus determined in advance reaches the predetermined number.
    Type: Application
    Filed: August 6, 2015
    Publication date: February 11, 2016
    Inventors: Yukinori INAMURA, Hiroshi TAKAHASHI, Tetsuya YOKOTA, Nakayasu TSUKAHARA, Takeshi NARITA
  • Patent number: 8913812
    Abstract: According to one embodiment, a medical image processing apparatus includes at least a vascular region extracting unit, a vascular shape image generating unit, a perfusion analyzing unit, a perfusion image generating unit, an image composition unit. The vascular region extracting unit extracts a vascular region based on a three-dimensional medical image. The vascular shape image generating unit generates an image of a vascular shape of the vascular region. The perfusion analyzing unit performs perfusion analysis on the three-dimensional medical image and obtains a perfusion value indicating a blood circulation condition in tissue around the vascular region. The perfusion image generating unit generates an image indicating the perfusion value. The image composition unit generates a vascular shape perfusion composition image in which an image of the vascular shape in a contraction portion in a blood vessel corresponding to the vascular region is combined with the image indicating the perfusion value.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: December 16, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yokota, Kensuke Shinoda, Satoshi Wakai
  • Patent number: 8882600
    Abstract: A slot machine has a frontward projecting portion which is projected frontward of the slot machine from a lower end of a main display provided in a cabinet. The frontward projecting portion has an armrest, a control panel, etc., each of which serves as a human contact portion which comes in contact with a part of a player's body. The lower end of a display surface of the main display is positioned lower than the human contact portions (armrest and control panel).
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 11, 2014
    Assignees: Universal Entertainment Corporation, Aruze Gaming America, Inc.
    Inventors: Kazuo Okada, Masaki Matsuno, Jun Hirato, Tetsuya Yokota
  • Publication number: 20130287282
    Abstract: To provide an image processing display and an image processing display program that is able to prevent interference with catheter treatment even when the distal end of a catheter is located behind a treatment apparatus on X-ray fluoroscopic images. The image processing display according to embodiments displays X-ray fluoroscopic images to be obtained by looking through a region including blood vessels using X-rays during treatment, and comprises a treatment apparatus image extractor and an image processor. The treatment apparatus image extractor, based on X-ray fluoroscopic images, extracts treatment apparatus images representing the treatment apparatus having the property of absorbing X-rays. The image processor determines the distal end position of the catheter to superimpose and display images representing the determined distal end position of the catheter on the region of the X-ray fluoroscopic images showing the treatment apparatus.
    Type: Application
    Filed: August 10, 2012
    Publication date: October 31, 2013
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Tetsuya Yokota, Tomohiro Kawasaki, Satoshi Wakai
  • Patent number: 8542891
    Abstract: Positioning images are created by a projection-image creating unit before imaging, and the positioning images are grouped and stored by a projection-image storage unit for each preset. When imaging is started, a positioning-information calculating unit calculates positioning parameters using the positioning images stored in the projection-image storage unit. An analysis-image-for-synthesis creating unit creates an analysis image using the positioning parameters, and an analysis-image synthesizing and displaying unit synthesizes the analysis image with a live image and displays a synthesized image. When an imaging direction of an X-ray angiography apparatus is changed, a positioning-information updating unit directly updates the positioning parameters based on an amount of change of the imaging direction.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: September 24, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tetsuya Yokota, Hitoshi Yamagata, Satoshi Wakai
  • Patent number: 8511682
    Abstract: A roulette board, including a roulette wheel on which a plurality of symbols are arranged in a circumferential direction of the roulette wheel, a plurality of ball reception portions that are provided in a one-to-one correspondence with the plurality of symbols, the plurality of ball reception portions being configured to receive a ball that rolls on the roulette wheel, a banked passage that is endlessly provided along an outer circumference of the roulette wheel, and allows the ball to roll in a circumferential orbit, and a ball discharging mechanism that is provided with a ball discharging member and discharges the ball received in one of the plurality of ball reception portions from the one of the plurality of ball reception portions toward the banked passage by bringing the ball discharging member into contact with the ball.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: August 20, 2013
    Assignee: Universal Entertainment Corporation
    Inventor: Tetsuya Yokota
  • Publication number: 20130094731
    Abstract: According to one embodiment, a medical image processing apparatus includes at least a vascular region extracting unit, a vascular shape image generating unit, a perfusion analyzing unit, a perfusion image generating unit, an image composition unit. The vascular region extracting unit extracts a vascular region based on a three-dimensional medical image. The vascular shape image generating unit generates an image of a vascular shape of the vascular region. The perfusion analyzing unit performs perfusion analysis on the three-dimensional medical image and obtains a perfusion value indicating a blood circulation condition in tissue around the vascular region. The perfusion image generating unit generates an image indicating the perfusion value. The image composition unit generates a vascular shape perfusion composition image in which an image of the vascular shape in a contraction portion in a blood vessel corresponding to the vascular region is combined with the image indicating the perfusion value.
    Type: Application
    Filed: December 4, 2012
    Publication date: April 18, 2013
    Inventors: Tetsuya YOKOTA, Kensuke Shinoda, Satoshi Wakai
  • Publication number: 20120310074
    Abstract: A medical image processing apparatus includes a morphological identification part, a function calculator and a display processor. The morphological identification part identifies morphological information related to thickness of a heart muscle of a subject or thickness of surrounding sites thereof from medical image data obtained by capturing an image of the subject using a medical imaging apparatus. The function calculator determines cardiac function information related to movement of the heart muscle of the subject based on the medical image data. The display processor causes a display to display a combination of the identified morphological information and the calculated cardiac function information which is identified by color. The medical image processing apparatus can easily diagnose diseases.
    Type: Application
    Filed: October 21, 2011
    Publication date: December 6, 2012
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Kyohei Yamamori, Tomohiro Kawasaki, Satoshi Wakai, Tetsuya Yokota, Yoshifumi Yamagata, Kensuke Shinoda
  • Patent number: 8152170
    Abstract: A roulette apparatus includes: a roulette wheel having a rolling region where a ball rolls; and a ball reception member provided contiguously to the rolling region to receive the ball. The ball reception member includes: a plurality of reception portions that receives the ball in one of the reception portions; and a plurality of separation walls that separates the reception portions from one another, wherein the ball reception member is formed separately from the roulette wheel and removably attached to the roulette wheel.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: April 10, 2012
    Assignee: Universal Entertainment Corporation
    Inventors: Tetsuya Yokota, Katsuhiro Kido, Yoshitomo Sasaki