Patents by Inventor Toshiya Nakaguchi
Toshiya Nakaguchi 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).
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Publication number: 20230404451Abstract: A sightline-position determination device includes: a sightline-position input unit to which a position of a sightline of a user is inputted; a determination region setting unit which sets a determination region; a determination unit which determines whether or not the position of the sightline inputted from the sightline-position input unit falls within the determination region; and an output unit which outputs feedback to the user when the determination unit has determined that the position of the sightline falls within the determination region.Type: ApplicationFiled: October 6, 2021Publication date: December 21, 2023Applicants: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, Sumitomo Pharma Co., Ltd.Inventors: Toshiya NAKAGUCHI, Eiji SHIMIZU, Yoshiyuki HIRANO, Chihiro SUTOH, Naomi SHIRAIWA, Yuki IKEDA, Shunsuke SAITO
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Publication number: 20230320640Abstract: A determination device includes an acquisition unit, a first determination unit, a second determination unit, and an output unit. The acquisition unit is configured to acquire a sightline direction of a user and a sightline direction of at least one facing person facing the user. The first determination unit is configured to determine whether a sightline of the user is directed to the facing person based on the sightline direction of the user acquired by the acquisition unit. The second determination unit is configured to determine whether a sightline of the facing person is directed to the user based on the sightline direction of the facing person acquired by the acquisition unit. The output unit is configured to output a feedback to the user and/or an executor based on a result of a determination of the first determination unit and a result of a determination of the second determination unit.Type: ApplicationFiled: March 30, 2023Publication date: October 12, 2023Applicants: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, Sumitomo Pharma Co., Ltd.Inventors: Toshiya NAKAGUCHI, Kyohei FUKUDA, Eiji SHIMIZU, Yoshiyuki HIRANO, Naomi SHIRAIWA, Yuki IKEDA, Masanori MIYAUCHI
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Patent number: 9900570Abstract: This invention provides a simple projector system that can be operated by a user who is not an expert of image processing technology. The projector system comprises a projector (1), a personal computer (2), a mouse (3), and a calibration board (4). A checker flag pattern is added to the calibration board (4), and an intersection point serves as a marker. A cursor, which is projected from the projector (1) onto the calibration board (4), is used as an intuitive input interface. An operator, while seeing the cursor, operates the mouse (3), thereby placing the cursor onto the calibration marker. In this state, the operator clicks the mouse (3), thereby selecting the calibration marker. The operator then acquires the corresponding projection image coordinates on the basis of the selection instruction.Type: GrantFiled: December 10, 2014Date of Patent: February 20, 2018Assignees: ADVANCED HEALTHCARE CO., LTD., NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventor: Toshiya Nakaguchi
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Publication number: 20170099473Abstract: This invention provides a simple projector system that can be operated by a user who is not an expert of image processing technology. The projector system comprises a projector (1), a personal computer (2), a mouse (3), and a calibration board (4). A checker flag pattern is added to the calibration board (4), and an intersection point serves as a marker. A cursor, which is projected from the projector (1) onto the calibration board (4), is used as an intuitive input interface. An operator, while seeing the cursor, operates the mouse (3), thereby placing the cursor onto the calibration marker. In this state, the operator clicks the mouse (3), thereby selecting the calibration marker. The operator then acquires the corresponding projection image coordinates on the basis of the selection instruction.Type: ApplicationFiled: December 10, 2014Publication date: April 6, 2017Applicants: ADVANCED HEALTHCARE CO., LTD., NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventor: Toshiya NAKAGUCHI
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Patent number: 9460637Abstract: Provided is a stethoscopy training system which is inexpensive and has a simple configuration, without using a device which measures a respiratory operation of a simulated patient. The stethoscopy training system for this objective is formed from: a simulated stethoscope (1) having a sound acquisition unit further comprising a location display means (1d), a tube, and ear pipes; a location sensing means (2) for sensing the location of the sound acquisition unit; biological sound database (3); a biological sound reproducing means (4); and a timing display means (5) for displaying a timing of a repetition of a reproduced respiratory sound. The database retains as information biological sounds which are prerecorded from actual patients in correspondence with chest locations.Type: GrantFiled: May 11, 2012Date of Patent: October 4, 2016Assignees: National University Corporation Chiba University, Kenzmedico Co., Ltd.Inventors: Toshiya Nakaguchi, Masahiro Tanabe
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Publication number: 20160113484Abstract: A technique using a trocar including a retractable camera in which fogging and organic matters are removed to clean a lens of the camera. The trocar includes a pipe portion and a head portion. The pipe portion includes a side opening portion. According to rotation of a changing over mechanism and a shaft, the retractable camera rotates such that the camera is changeable between a stored position and a deployed position by passing through the side opening portion. A wiper blade is fixed to an end face of the side opening portion on a tip side of the trocar. When the retractable camera rotates, a tip of the wiper blade contacts a camera lens in a deformable manner.Type: ApplicationFiled: May 8, 2014Publication date: April 28, 2016Applicants: ADVANCED HEALTHCARE CO., LTD., NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, KYOCERA OPTEC CO., LTD.Inventor: Toshiya NAKAGUCHI
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Publication number: 20140302473Abstract: Provided is a stethoscopy training system which is inexpensive and has a simple configuration, without using a device which measures a respiratory operation of a simulated patient. The stethoscopy training system for this objective is formed from: a simulated stethoscope (1) having a sound acquisition unit further comprising a location display means (1d), a tube, and ear pipes; a location sensing means (2) for sensing the location of the sound acquisition unit; biological sound database (3); a biological sound reproducing means (4); and a timing display means (5) for displaying a timing of a repetition of a reproduced respiratory sound. The database retains as information biological sounds which are prerecorded from actual patients in correspondence with chest locations.Type: ApplicationFiled: May 11, 2012Publication date: October 9, 2014Applicants: Kenzmedico Co., Ltd., National University Corporation Chiba UniversityInventors: Toshiya Nakaguchi, Masahiro Tanabe
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Publication number: 20140194683Abstract: Problem: To provide a trocar equipped with a retractable camera, with which the security is enhanced as compared with the related art. Means for Solution: An opening portion 13 is provided at a position of a pipe portion 11. The position of opening portion 13 is reliably within the body of the patient. A shaft 14 is arranged along the interior of the trocar, along an edge of the opening portion 13. Several bearings 15 are fixed to the inter wall of the pipe portion 11, with the shaft 14 being rotatably mounted in the bearings 15. The end portion of the shaft 14 extends to the exterior of the trocar, outside the body of the patient. A selection lever 16 is provided at the outer end portion of the shaft 14. The selection lever 16 can be changed over between a stored position and a deployed position, and can be fixed in each of these positions. A camera 17 is rigidly and integrally attached to the shaft 14 at a position that corresponds to the opening portion 13.Type: ApplicationFiled: August 23, 2013Publication date: July 10, 2014Applicants: National University Corporation Chiba University, Advanced Healthcare Co., Ltd.Inventor: Toshiya NAKAGUCHI
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Publication number: 20140194732Abstract: Problem To provide a surgery assistance system that performs measurement of shapes within the abdominal cavity at high accuracy in three dimensions, and a trocar for use in such a surgery assistance system. Means for Solution A surgery assistance system 101 includes forceps trocars 1a and 1b having retractable cameras 17a and 17b and marks 19a and 19b, a laparoscope trocar 3, forceps 4a and 4b, a laparoscope 5 having a mark 19d, an image processing device 6 that inputs the images obtained from the retractable cameras 17a and 17b and the image obtained from the laparoscope 5 and combines these images to create a three dimensional image, a three dimensional monitor 7 that outputs the three dimensional image created by the image processing device 6, and an optical tracking sensor 9. The positional relationships of the marks 19 and the corresponding cameras 17 are fixed.Type: ApplicationFiled: August 23, 2013Publication date: July 10, 2014Applicants: National University Corporation Chiba University, Advanced Healthcare Co., Ltd.Inventor: Toshiya NAKAGUCHI
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Patent number: 8038596Abstract: A body cavity observation apparatus includes a treatment tool to be inserted into a body cavity of a subject with an insertion tool as a guide, an observation section attached to an opening of a body wall of the subject, a monitor for displaying the body cavity captured by the observation section, and a marker position-detecting device for detecting a position of a marker part applied to the treatment tool or insertion tool from an image showing the body cavity captured by the observation section. The marker position-detecting device includes a pixel extracting device for extracting a group of pixels in the same color as the color of the marker part from the image and a calculation device for calculating a position of the barycenter of the group of pixels as a position of the marker part.Type: GrantFiled: November 21, 2006Date of Patent: October 18, 2011Assignee: Fujifilm CorporationInventors: Yoichi Miyake, Tatsuo Igarashi, Harufumi Makino, Toshiya Nakaguchi, Hiroshi Fujita
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Patent number: 7684851Abstract: According to a body cavity interior observing apparatus of the present invention, a non-tracked region to be displayed can be switched between a first non-tracked region and a second non-tracked region which is larger than the first non-tracked region, and in a search for an affected area in which it is preferable to track a treating instrument in order to consistently align the position of treating instrument to the central part of the screen, the first non-tracked region having a smaller non-tracked region is selected, while in a treatment of an affected area in which a treating instrument is moved in a wide range of area, the second non-tracked region having a larger non-tracked region is selected, thereby an appropriate monitor screen can be provided in searching for an affected area and in treating an affected area.Type: GrantFiled: February 16, 2007Date of Patent: March 23, 2010Assignee: Fujinon CorporationInventors: Yoichi Miyake, Tatsuo Igarashi, Harufumi Makino, Toshiya Nakaguchi, Hiroshi Fujita
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Publication number: 20070232863Abstract: According to a body cavity interior observing apparatus of the present invention, a non-tracked region to be displayed can be switched between a first non-tracked region and a second non-tracked region which is larger than the first non-tracked region, and in a search for an affected area in which it is preferable to track a treating instrument in order to consistently align the position of treating instrument to the central part of the screen, the first non-tracked region having a smaller non-tracked region is selected, while in a treatment of an affected area in which a treating instrument is moved in a wide range of area, the second non-tracked region having a larger non-tracked region is selected, thereby an appropriate monitor screen can be provided in searching for an affected area and in treating an affected area.Type: ApplicationFiled: February 16, 2007Publication date: October 4, 2007Inventors: Yoichi Miyake, Tatsuo Igarashi, Harufumi Makino, Toshiya Nakaguchi, Hiroshi Fujita
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Publication number: 20070197865Abstract: A body cavity observation apparatus comprising: a treatment tool to be inserted into a body cavity of a subject with an insertion tool as a guide, an observation section attached to an opening of a body wall of the subject, a monitor for displaying the body cavity captured by the observation section, and a marker position-detecting device for detecting a position of a marker part applied to the treatment tool or insertion tool from an image showing the body cavity captured by the observation section; wherein the marker position-detecting device comprises: a pixel extracting device for extracting a group of pixels in the same color as color of the marker part from the image, and a calculation device for calculating a position of the barycenter of the group of pixels as a position of the marker part.Type: ApplicationFiled: November 21, 2006Publication date: August 23, 2007Inventors: Yoichi Miyake, Tatsuo Igarashi, Harufumi Makino, Toshiya Nakaguchi, Hiroshi Fujita
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Patent number: 7203381Abstract: An image feature analysis section performs image feature analysis of an input image to generate an image feature quantity independent from image coordinates. An image content densification section information densifies the image feature quantity to generate a densified image feature quantity. An image generation section generates, based on the densified image feature quantity, an image in which the information content of the input image is densified.Type: GrantFiled: February 23, 2005Date of Patent: April 10, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hideto Motomura, Katsuhiro Kanamori, Yoichi Miyake, Norimichi Tsumura, Toshiya Nakaguchi, Takashi Sugaya
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Publication number: 20060270902Abstract: A laparoscope supporting device which is attached to a body wall face of an examinee and supports a laparoscope to be inserted in a body cavity of the examinee by using an inserting tool as a guide, the device comprises: a grasping portion that grasps the inserting tool; and a support portion that supports the grasping portion in a movable manner in a predetermined direction.Type: ApplicationFiled: May 10, 2006Publication date: November 30, 2006Inventors: Tatsuo Igarashi, Yoichi Miyake, Toshiya Nakaguchi, Harufumi Makino, Hiroshi Fujita, Tomoya Norinobu
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Publication number: 20060074307Abstract: A body cavity diagnostic system includes a medical procedure instrument for practicing a surgical procedure on an affected part within a body cavity of a patient, a body cavity diagnostic unit for optically capturing an image of an interior of the body cavity, the body cavity diagnostic unit being fixedly put in an incision formed in a body wall of the patient; and a monitor unit for magnifying and displaying a desired part of the image on a monitor screen. Either one of the medical procedure instrument and the cannula is provided with a position representation mark on its distal end. A part of the image detected the mark detection element is trimmed and magnified so as to be displayed in a center area of the monitor screen.Type: ApplicationFiled: May 10, 2005Publication date: April 6, 2006Inventors: Tatsuo Igarashi, Yoichi Miyake, Toshiya Nakaguchi, Harufumi Makino, Hiroshi Fujita
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Publication number: 20050152619Abstract: An image feature analysis section performs image feature analysis of an input image to generate an image feature quantity independent from image coordinates. An image content densification section information densifies the image feature quantity to generate a densified image feature quantity. An image generation section generates, based on the densified image feature quantity, an image in which the information content of the input image is densified.Type: ApplicationFiled: February 23, 2005Publication date: July 14, 2005Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Hideto Motomura, Katsuhiro Kanamori, Yoichi Miyake, Norimichi Tsumura, Toshiya Nakaguchi, Takashi Sugaya