Patents by Inventor Katsumi Gotanda
Katsumi Gotanda 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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Patent number: 11344275Abstract: A medical diagnostic-imaging apparatus according to an embodiment includes a gantry device and a processing circuitry. The gantry device includes an opening in which a subject is inserted. The processing circuitry is configured to set an inserting range indicating a range in which the subject is inserted into the opening by move of the subject or by move of the gantry device based on a scan plan. The processing circuitry is configured to acquire a position of the subject in the inserting range as first position information. The processing circuitry is configured to determine whether the subject interferes with the gantry device based on the first position information.Type: GrantFiled: May 4, 2020Date of Patent: May 31, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventor: Katsumi Gotanda
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Patent number: 11241200Abstract: According to one embodiment, an X-ray computed tomography apparatus includes a gantry body, a column, and fixing equipment. The gantry body includes a bore to form a field of view, and also includes an X-ray tube and an X-ray detector. The column supports the gantry body so that the gantry body is vertically movable with a central axis of the bore extending vertically to a floor face. The fixing equipment fixes a subject holder so that the subject holder is located on a passage of the bore and partially in the bore in a phase of attaching a subject to the subject holder.Type: GrantFiled: September 21, 2017Date of Patent: February 8, 2022Assignees: CANON MEDICAL SYSTEMS CORPORATION, KEIO UNIVERSITYInventors: Keisuke Oishi, Katsumi Gotanda, Masahiro Jinzaki, Takeo Nagura, Naomichi Ogihara
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Publication number: 20200367851Abstract: A medical diagnostic-imaging apparatus according to an embodiment includes a gantry device and a processing circuitry. The gantry device includes an opening in which a subject is inserted. The processing circuitry is configured to set an inserting range indicating a range in which the subject is inserted into the opening by move of the subject or by move of the gantry device based on a scan plan. The processing circuitry is configured to acquire a position of the subject in the inserting range as first position information. The processing circuitry is configured to determine whether the subject interferes with the gantry device based on the first position information.Type: ApplicationFiled: May 4, 2020Publication date: November 26, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventor: Katsumi GOTANDA
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Patent number: 10383583Abstract: An X-ray CT apparatus includes a processing circuit. The processing circuit adjusts an image taking area of a subject by receiving an operation performed on a light projector provided on a gantry and further sets the adjusted image taking area as an image taking condition included in first image taking conditions; adjusts an image taking area of the subject by receiving an operator's operation via terminal equipment and further sets the adjusted image taking area as an image taking condition included in second image taking conditions; and causes the gantry to perform the image taking process on the basis of selection information selecting from between the first and the second image taking conditions as image taking conditions used for performing the image taking process.Type: GrantFiled: October 14, 2016Date of Patent: August 20, 2019Assignee: Canon Medical Systems CorporationInventors: Kenji Tomomura, Katsumi Gotanda, Takeo Nabatame
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Patent number: 10349903Abstract: According to one embodiment, an X-ray CT apparatus includes a gantry, storage circuitry and control circuitry. The gantry including an X-ray tube is relatively movable on a floor surface of an examination room. The storage circuitry store information of a first boundary indicating an outer edge of a FOV inside the opening portion and information of a second boundary located between the first boundary and an inner surface of the opening portion to prevent interference between an object and the gantry. The control circuitry control the X-ray tube to stop emitting X-rays based on a relative positional relationship between a scan target area of the object and the first boundary or control the gantry to stop moving based on a relative positional relationship between a non-scan target area of the object and the second boundary.Type: GrantFiled: September 13, 2016Date of Patent: July 16, 2019Assignee: Toshiba Medical Systems CorporationInventors: Katsumi Gotanda, Kenji Tomomura
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Patent number: 9918693Abstract: According to one embodiment, an X-ray CT apparatus includes a rotating body configured to house an X-ray tube which irradiates X-rays on an object; at least one weight configured to be housed in the rotating body and to adjust balance of the rotating body; a sensor configured to detect fluctuation amount in a front-back direction approximately orthogonal to a rotating surface of the rotating body; processing circuitry configured to determine moving amount of the weight based on the fluctuation amount in a front-back direction detected by the sensor; and at least one weight moving mechanism configured to be housed in the rotating body and to move a position of the weight based on the moving amount determined by the determination unit.Type: GrantFiled: May 1, 2015Date of Patent: March 20, 2018Assignee: Toshiba Medical Systems CorporationInventor: Katsumi Gotanda
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Publication number: 20180008210Abstract: According to one embodiment, an X-ray computed tomography apparatus includes a gantry body, a column, and fixing equipment. The gantry body includes a bore to form a field of view, and also includes an X-ray tube and an X-ray detector. The column supports the gantry body so that the gantry body is vertically movable with a central axis of the bore extending vertically to a floor face. The fixing equipment fixes a subject holder so that the subject holder is located on a passage of the bore and partially in the bore in a phase of attaching a subject to the subject holder.Type: ApplicationFiled: September 21, 2017Publication date: January 11, 2018Applicants: Toshiba Medical Systems Corporation, KEIO UNIVERSITYInventors: Keisuke OISHI, Katsumi GOTANDA, Masahiro JINZAKI, Takeo NAGURA, Naomichi OGIHARA
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Publication number: 20170105696Abstract: According to one embodiment, an X-ray CT apparatus includes a gantry, storage circuitry and control circuitry. The gantry including an X-ray tube is relatively movable on a floor surface of an examination room. The storage circuitry store information of a first boundary indicating an outer edge of a FOV inside the opening portion and information of a second boundary located between the first boundary and an inner surface of the opening portion to prevent interference between an object and the gantry. The control circuitry control the X-ray tube to stop emitting X-rays based on a relative positional relationship between a scan target area of the object and the first boundary or control the gantry to stop moving based on a relative positional relationship between a non-scan target area of the object and the second boundary.Type: ApplicationFiled: September 13, 2016Publication date: April 20, 2017Applicant: Toshiba Medical Systems CorporationInventors: Katsumi GOTANDA, Kenji TOMOMURA
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Publication number: 20170105690Abstract: An X-ray CT apparatus includes a processing circuit. The processing circuit adjusts an image taking area of a subject by receiving an operation performed on a light projector provided on a gantry and further sets the adjusted image taking area as an image taking condition included in first image taking conditions; adjusts an image taking area of the subject by receiving an operator's operation via terminal equipment and further sets the adjusted image taking area as an image taking condition included in second image taking conditions; and causes the gantry to perform the image taking process on the basis of selection information selecting from between the first and the second image taking conditions as image taking conditions used for performing the image taking process.Type: ApplicationFiled: October 14, 2016Publication date: April 20, 2017Applicant: Toshiba Medical Systems CorporationInventors: Kenji TOMOMURA, Katsumi GOTANDA, Takeo NABATAME
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Publication number: 20150320366Abstract: According to one embodiment, an X-ray CT apparatus includes a rotating body configured to house an X-ray tube which irradiates X-rays on an object; at least one weight configured to be housed in the rotating body and to adjust balance of the rotating body; a sensor configured to detect fluctuation amount in a front-back direction approximately orthogonal to a rotating surface of the rotating body; processing circuitry configured to determine moving amount of the weight based on the fluctuation amount in a front-back direction detected by the sensor; and at least one weight moving mechanism configured to be housed in the rotating body and to move a position of the weight based on the moving amount determined by the determination unit.Type: ApplicationFiled: May 1, 2015Publication date: November 12, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventor: Katsumi GOTANDA
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Patent number: 7889837Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.Type: GrantFiled: April 30, 2009Date of Patent: February 15, 2011Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
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Publication number: 20090279660Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.Type: ApplicationFiled: April 30, 2009Publication date: November 12, 2009Inventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
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Patent number: 7508904Abstract: An X-ray CT apparatus, wherein a drum type rotation frame is rotatably supported by a fixed circular frame so as to surround an outer surface of the drum type rotation frame through a plurality of bearings provided between an inner surface of the fixing circular frame and an outer surface of the drum type rotation frame, for example in ring-like configuration. When the drum type rotation frame receives a large centrifugal acceleration due to a high speed rotation, outside expansion of the drum type rotation frame can be constrained due to both the rigidity of the fixed frame and the rigidity of the plurality of bearings provided on the outer surface of the rotation frame, thereby to maintain the relative positions of the X-ray tube and the X-ray detector and prevent deterioration of reconstructed images.Type: GrantFiled: May 14, 2007Date of Patent: March 24, 2009Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomokazu Harada, Makoto Nakano, Tetsuya Sadotomo, Yasutaka Shindo, Katsumi Gotanda
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Patent number: 7447294Abstract: An X-ray computed tomographic apparatus includes a cylindrical rotary base supported so as to be rotatable about a rotational axis, an X-ray tube unit mounted on the rotary base, an X-ray detecting unit mounted on the rotary base, and a reinforcing ring fixed to an end of the rotary base, and having a greater rigidity than the rotary base.Type: GrantFiled: September 7, 2006Date of Patent: November 4, 2008Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tetsuya Sadotomo, Tomokazu Harada, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
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Publication number: 20070274436Abstract: An X-ray CT apparatus, wherein a drum type rotation frame is rotatably supported by a fixed circular frame so as to surround an outer surface of the drum type rotation frame through a plurality of bearings provided between an inner surface of the fixing circular frame and an outer surface of the drum type rotation frame, for example in ring-like configuration. When the drum type rotation frame receives a large centrifugal acceleration due to a high speed rotation, outside expansion of the drum type rotation frame can be constrained due to both the rigidity of the fixed frame and the rigidity of the plurality of bearings provided on the outer surface of the rotation frame, thereby to maintain the relative positions of the X-ray tube and the X-ray detector and prevent deterioration of reconstructed images.Type: ApplicationFiled: May 14, 2007Publication date: November 29, 2007Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Tomokazu Harada, Makoto Nakano, Tetsuya Sadotomo, Yasutaka Shindo, Katsumi Gotanda
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Publication number: 20070053479Abstract: An X-ray computed tomographic apparatus includes a cylindrical rotary base supported so as to be rotatable about a rotational axis, an X-ray tube unit mounted on the rotary base, an X-ray detecting unit mounted on the rotary base, and a reinforcing ring fixed to an end of the rotary base, and having a greater rigidity than the rotary base.Type: ApplicationFiled: September 7, 2006Publication date: March 8, 2007Inventors: Tetsuya Sadatomo, Tomokazu Harada, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda