Patents by Inventor Masahiro Kazama
Masahiro Kazama 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: 11761556Abstract: A valve state grasping system that can be easily retrofitted to any of various existing or operating valves (rotary valves) and actuators, and in particular, even facilities to which commercial power is not supplied, and allows detailed and accurate state grasping and diagnosis or failure prediction for the valve or actuator. The valve state grasping system is configured to perform, based on angular velocity data of a valve stem which opens and closes the valve, state monitoring, diagnosis, and life prediction of this valve. To the valve stem, a monitoring unit having at least a semiconductor-type gyro sensor is attachably and detachably fixed. The angular velocity data includes angular velocity data acquired from this monitoring unit in accordance with a rotational motion of a valve body from being fully open or fully closed to fully closed or fully open.Type: GrantFiled: June 6, 2019Date of Patent: September 19, 2023Assignee: KITZ CORPORATIONInventors: Yu Inoue, Masahiro Kazama, Isao Nishizawa
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Patent number: 11668696Abstract: A mask structure optimization device includes a classification target image size acquisition unit that is configured to acquire a size of a classification target image which is an image including a classification target, a mask size setting unit that is configured to set a size of a mask applied to the classification target image, a brightness detection unit that is configured to detect a brightness of each pixel within the classification target image at a position on an opposite side of the mask from the classification target image, a sum total brightness calculation unit that is configured to calculate the sum total brightness of the each pixel within the classification target image detected by the brightness detection unit, an initial value setting unit that is configured to set an initial value for a mask pattern of the mask, and a movement unit that is configured to relatively move the mask with respect to the classification target image.Type: GrantFiled: March 29, 2022Date of Patent: June 6, 2023Inventors: Issei Sato, Masahiro Kazama, Masashi Ugawa, Hiroaki Adachi, Fumiya Shimada
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Publication number: 20220222935Abstract: A mask structure optimization device includes a classification target image size acquisition unit that is configured to acquire a size of a classification target image which is an image including a classification target, a mask size setting unit that is configured to set a size of a mask applied to the classification target image, a brightness detection unit that is configured to detect a brightness of each pixel within the classification target image at a position on an opposite side of the mask from the classification target image, a sum total brightness calculation unit that is configured to calculate the sum total brightness of the each pixel within the classification target image detected by the brightness detection unit, an initial value setting unit that is configured to set an initial value for a mask pattern of the mask, and a movement unit that is configured to relatively move the mask with respect to the classification target image.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Inventors: Issei SATO, Masahiro KAZAMA, Masashi UGAWA, Hiroaki ADACHI, Fumiya SHIMADA
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Patent number: 11314994Abstract: A mask structure optimization device includes a classification target image size acquisition unit that is configured to acquire a size of a classification target image which is an image including a classification target, a mask size setting unit that is configured to set a size of a mask applied to the classification target image, a brightness detection unit that is configured to detect a brightness of each pixel within the classification target image at a position on an opposite side of the mask from the classification target image, a sum total brightness calculation unit that is configured to calculate the sum total brightness of the each pixel within the classification target image detected by the brightness detection unit, an initial value setting unit that is configured to set an initial value for a mask pattern of the mask, and a movement unit that is configured to relatively move the mask with respect to the classification target image.Type: GrantFiled: January 30, 2019Date of Patent: April 26, 2022Inventors: Issei Sato, Masahiro Kazama, Masashi Ugawa, Hiroaki Adachi, Fumiya Shimada
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Publication number: 20210166094Abstract: A mask structure optimization device includes a classification target image size acquisition unit that is configured to acquire a size of a classification target image which is an image including a classification target, a mask size setting unit that is configured to set a size of a mask applied to the classification target image, a brightness detection unit that is configured to detect a brightness of each pixel within the classification target image at a position on an opposite side of the mask from the classification target image, a sum total brightness calculation unit that is configured to calculate the sum total brightness of the each pixel within the classification target image detected by the brightness detection unit, an initial value setting unit that is configured to set an initial value for a mask pattern of the mask, and a movement unit that is configured to relatively move the mask with respect to the classification target image.Type: ApplicationFiled: January 30, 2019Publication date: June 3, 2021Inventors: Issei SATO, Masahiro KAZAMA, Masashi UGAWA, Hiroaki ADACHI, Fumiya SHIMADA
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Publication number: 20210123543Abstract: The present invention is to provide a valve state grasping system that can be easily retrofitted to any of various existing or operating valves (rotary valves) and actuators, and in particular, even facilities to which commercial power is not supplied, and allows detailed and accurate state grasping and diagnosis or failure prediction for the valve or actuator. The valve state grasping system is configured to perform, based on angular velocity data of a valve stem which opens and closes the valve, state monitoring, diagnosis, and life prediction of this valve. To the valve stem, a monitoring unit having at least a semiconductor-type gyro sensor is attachably and detachably fixed. The angular velocity data includes angular velocity data acquired from this monitoring unit in accordance with a rotational motion of a valve body from being fully open or fully closed to fully closed or fully open.Type: ApplicationFiled: June 6, 2019Publication date: April 29, 2021Inventors: Yu INOUE, Masahiro KAZAMA, Isao NISHIZAWA
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Patent number: 10945927Abstract: To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.Type: GrantFiled: May 17, 2018Date of Patent: March 16, 2021Assignee: SHOFU INC.Inventors: Toshio Kitamura, Masahiro Kazama
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Patent number: 10932735Abstract: According to one embodiment, a nuclear medical diagnostic apparatus includes processing circuitry. The processing circuitry acquires gamma-ray emission data based on gamma rays emitted from radio isotopes administered to an object. The processing circuitry further executes scattered-ray correction on the gamma-ray emission data based on a second X-ray CT image obtained by replacing pixel values of a non-object region included in a first X-ray CT image with a predetermined pixel value.Type: GrantFiled: December 30, 2015Date of Patent: March 2, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yasuhiro Noshi, Manabu Teshigawara, Masahiro Kazama, Tetsuya Sadotomo
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Patent number: 10767768Abstract: A trunnion-type ball valve, a valve seal structure, and a valve packing in which, a seal surface pressure of a tip outer peripheral region is improved. A ball (3) provided inside a body (2) is rotatably provided via upper and lower stems (4 and 5) and is sealed with a ball seat (6). The trunnion-type ball valve has a packing attached between an outer periphery step part provided at a rear part of the ball seat and the body and a pressing mechanism by which the packing is pressed to a ball direction, and is provided with a contact surface to be contacted with a step part surface of the outer periphery step part on a tip outer diameter side of the packing and a space provided between the packing and the step part surface of the outer periphery step part on a tip inner diameter side of the packing.Type: GrantFiled: May 13, 2016Date of Patent: September 8, 2020Assignee: KITZ CORPORATIONInventors: Masahiro Kazama, Masazumi Funato
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Publication number: 20190154161Abstract: A trunnion-type ball valve, a valve seal structure, and a valve packing in which, a seal surface pressure of a tip outer peripheral region is improved. A ball (3) provided inside a body (2) is rotatably provided via upper and lower stems (4 and 5) and is sealed with a ball seat (6). The trunnion-type ball valve has a packing attached between an outer periphery step part provided at a rear part of the ball seat and the body and a pressing mechanism by which the packing is pressed to a ball direction, and is provided with a contact surface to be contacted with a step part surface of the outer periphery step part on a tip outer diameter side of the packing and a space provided between the packing and the step part surface of the outer periphery step part on a tip inner diameter side of the packing.Type: ApplicationFiled: May 13, 2016Publication date: May 23, 2019Inventors: Masahiro KAZAMA, Masazumi FUNATO
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Publication number: 20180333337Abstract: To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.Type: ApplicationFiled: May 17, 2018Publication date: November 22, 2018Applicant: SHOFU INC.Inventors: Toshio KITAMURA, Masahiro KAZAMA
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Patent number: 10018276Abstract: A trunnion-type ball valve including a seat retainer (14) attaching a ball seat(s) to at least one side of a ball (12) having a through hole (12a) provided in a body (11). The ball is turnably provided via a stem (13), and the ball seat is attached in a protrusion-prevented and free state in an attachment groove formed in the seat retainer. An excessive pressure due to an abnormal pressure rise in a cavity upon full close or upon full open is configured to be relieved into a flow channel via a communication part provided between an inner peripheral surface of the ball seat and the attachment groove by moving the seat retainer in a direction opposite to the ball by self-tension utilizing the pressure and pushing-out the ball seat to a ball-side by the excessive pressure flowed into a rear-surface side of the ball seat in the attachment groove.Type: GrantFiled: August 27, 2015Date of Patent: July 10, 2018Assignee: KITZ CORPORATIONInventors: Masazumi Funato, Masahiro Kazama
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Publication number: 20160319940Abstract: A trunnion-type ball valve including a seat retainer (14) attaching a ball seat(s) to at least one side of a ball (12) having a through hole (12a) provided in a body (11). The ball is turnably provided via a stem (13), and the ball seat is attached in a protrusion-prevented and free state in an attachment groove formed in the seat retainer. An excessive pressure due to an abnormal pressure rise in a cavity upon full close or upon full open is configured to be relieved into a flow channel via a communication part provided between an inner peripheral surface of the ball seat and the attachment groove by moving the seat retainer in a direction opposite to the ball by self-tension utilizing the pressure and pushing-out the ball seat to a ball-side by the excessive pressure flowed into a rear-surface side of the ball seat in the attachment groove.Type: ApplicationFiled: August 27, 2015Publication date: November 3, 2016Inventors: Masazumi FUNATO, Masahiro KAZAMA
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Publication number: 20160113604Abstract: According to one embodiment, a nuclear medical diagnostic apparatus includes processing circuitry. The processing circuitry acquires gamma-ray emission data based on gamma rays emitted from radio isotopes administered to an object. The processing circuitry further executes scattered-ray correction on the gamma-ray emission data based on a second X-ray CT image obtained by replacing pixel values of a non-object region included in a first X-ray CT image with a predetermined pixel value.Type: ApplicationFiled: December 30, 2015Publication date: April 28, 2016Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Yasuhiro Noshi, Manabu Teshigawara, Masahiro Kazama, Tetsuya Sadotomo
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Patent number: 9168010Abstract: An X-ray imaging apparatus including: an imaging unit which includes an X-ray tube that emits an X-ray to a subject and an X-ray detector that is so disposed as to face the X-ray tube; an input unit which inputs a plurality of imaging conditions including a tube current and a tube voltage of the X-ray tube, and sets an imaging protocol of the imaging unit; and an image creation unit which calculates an exposed dose when at least the tube voltage or the tube current is varied, and creates an index image that is made by overlapping an image showing the exposed dose on a two-dimensional map that is represented by the tube voltage and the tube current.Type: GrantFiled: May 22, 2013Date of Patent: October 27, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Masahiro Kazama, Masakuni Fujise
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Publication number: 20130272500Abstract: An X-ray imaging apparatus including: an imaging unit which includes an X-ray tube that emits an X-ray to a subject and an X-ray detector that is so disposed as to face the X-ray tube; an input unit which inputs a plurality of imaging conditions including a tube current and a tube voltage of the X-ray tube, and sets an imaging protocol of the imaging unit; and an image creation unit which calculates an exposed dose when at least the tube voltage or the tube current is varied, and creates an index image that is made by overlapping an image showing the exposed dose on a two-dimensional map that is represented by the tube voltage and the tube current.Type: ApplicationFiled: May 22, 2013Publication date: October 17, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Masahiro KAZAMA, Masakuni FUJISE
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Patent number: 8189740Abstract: An X-ray CT apparatus that transmits X-rays toward a subject on the basis of a set scan condition and reconstructs images from detected X-rays that passes through the subject, including a scan plan setting unit configured to set the scan condition, a reference dose storage unit configured to store reference dose information, including an relation between an attribute information about a plurality of kinds of subjects and reference doses to be referenced for an exposure dose, and an exposure dose calculation unit configured to calculate the exposure dose corresponding to the set scan condition in accordance with the timing of setting of the scan condition.Type: GrantFiled: September 15, 2008Date of Patent: May 29, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Shinsuke Tsukagoshi, Tetsuya Horiuchi, Masahiro Kazama
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Publication number: 20090074143Abstract: An X-ray CT apparatus that transmits X-rays toward a subject on the basis of a set scan condition and reconstructs images from detected X-rays that passes through the subject, including a scan plan setting unit configured to set the scan condition, a reference dose storage unit configured to store reference dose information, including an relation between an attribute information about a plurality of kinds of subjects and reference doses to be referenced for an exposure dose, and an exposure dose calculation unit configured to calculate the exposure dose corresponding to the set scan condition in accordance with the timing of setting of the scan condition.Type: ApplicationFiled: September 15, 2008Publication date: March 19, 2009Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Shinsuke TSUKAGOSHI, Tetsuya Horiuchi, Masahiro Kazama
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Patent number: 7203270Abstract: An X-ray computed tomographic apparatus includes a gantry, a reconstructing portion, and a tube current value determining portion. The gantry acquires projection data of an arbitrary range in a body axial direction by continuously moving a tabletop on which a subject is laid down and by continuously rotating an X-ray tube about the subject. The reconstructing portion reconstructs image data from the acquired projection data according to reconstruction processing selected by an operator from plural types of reconstruction processing. The tube current value determining portion determines plural tube current values respectively corresponding to discrete, plural positions within the range, on the basis of the selected type of reconstruction processing and an image quality level specified or selected by the operator.Type: GrantFiled: April 8, 2004Date of Patent: April 10, 2007Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Miwa Okumura, Masahiro Kazama, Naofumi Watanabe, Hideaki Takanezawa
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Patent number: 7163192Abstract: An actuator for a valve serving to transfer turning power from a motor to an output shaft through an inner gearing planet gear speed reducing mechanism that is imposed in a casing and adapted to effect speed reduction of the turning power, and utilize rotation of the output shaft to open and close a valve by rotation. The gear speed reduction mechanism includes an eccentric body rotated in consequence of transfer of the turning power from the motor, an outer gear disposed so as to generate a vibrating rotation through the eccentric body, an inner gear meshed in an inscribing manner with the outer gear, a rotation transferring mechanism for extracting rotation from the vibrating rotation of the outer gear and transferring the extracted rotation to the output shaft, and an output shaft connected through the rotation transferring mechanism.Type: GrantFiled: June 20, 2003Date of Patent: January 16, 2007Assignee: Kitz CorporationInventors: Kazuhiro Aoki, Yasuo Minai, Yoshikazu Yokochi, Masahiro Kazama