Patents by Inventor Tatsuya Oki
Tatsuya Oki 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: 11435334Abstract: To give reliability to statistical data on samples as discrete materials, a required sample-number determination device includes: a required sample number for each class acquisition unit configured to acquire a required sample number for each class Ni by the following Equation (1) based on a proportion P{circumflex over (?)}i, that is a ratio of the number of samples in each class to the number of the samples in the population; a temporary required sample number acquisition unit configured to acquire a temporary required sample number Nr, which may be a maximum value among the required sample numbers for each class Ni; and a required sample number determination unit configured to determine the temporary required sample number Nr as a true required sample number when the sample number reaches the temporary required sample number Nr or more, [ Mathematical ? ? 1 ] ? N i = ( K P ? i ) 2 ? P ^ i ? ( 1 - P ^ i ) ( 1 ) in Equation (1), ?i denotes aType: GrantFiled: June 25, 2018Date of Patent: September 6, 2022Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Takao Ueda, Tatsuya Oki
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Publication number: 20210025864Abstract: To give reliability to statistical data on samples as discrete materials, a required sample-number determination device includes: a required sample number for each class acquisition unit configured to acquire a required sample number for each class Ni by the following Equation (1) based on a proportion P{circumflex over (?)}i, that is a ratio of the number of samples in each class to the number of the samples in the population; a temporary required sample number acquisition unit configured to acquire a temporary required sample number Nr, which may be a maximum value among the required sample numbers for each class Ni; and a required sample number determination unit configured to determine the temporary required sample number Nr as a true required sample number when the sample number reaches the temporary required sample number Nr or more, [ Mathematical ? ? 1 ] ? N i = ( K P ? i ) 2 ? P ^ i ? ( 1 - P ^ i ) ( 1 ) in Equation (1), ?i denotes aType: ApplicationFiled: June 25, 2018Publication date: January 28, 2021Inventors: Takao Ueda, Tatsuya Oki
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Patent number: 10449550Abstract: The present invention provides a sorting device and a sorting method for sorting a magnetically attractable substance and a non-magnetically attractable substance from a sorting target using a high gradient magnetic separator.Type: GrantFiled: June 9, 2015Date of Patent: October 22, 2019Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Tatsuya Oki, Tomohiro Noguchi, Taeko Hazumi
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Publication number: 20190124314Abstract: To estimate a three-dimensional state of an internal structure of particles forming a multicomponent material containing unknown materials based on two-dimensional image data, a three-dimensional state estimation device according to the present invention comprises statistical data setting means for setting statistical data obtained by taking statistics of a correlation among: a complexity indicator for quantitatively indicating, as an image complexity, various display states of a component of interest in two-dimensional image data in which a cross-section or the like of a multicomponent material is displayed and the component of interest and a component of non-interest in group of particles in the cross-section or the like are displayed differently from each other; an area fraction of the component of interest in the two-dimensional image data; and three-dimensional estimation data, which is, for example, three-dimensional state data on a content percentage of the component of interest in the multicomponent mType: ApplicationFiled: March 9, 2017Publication date: April 25, 2019Inventors: Takao Ueda, Tatsuya Oki
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Patent number: 9884326Abstract: To provide matrix for magnetic separator capable of sorting magnetic and non-magnetic particles highly accurately and efficiently and enabling previous simulative recognition of correct magnetic force distribution in matrix space, and magnetic separator.Type: GrantFiled: June 30, 2014Date of Patent: February 6, 2018Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Tatsuya Oki, Taeko Hazumi, Tomohiro Noguchi
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Patent number: 9821343Abstract: An airflow separator of the present invention includes: a first column into which gas is introduced from a lower portion and inside which a sample is made to flow; a heavy particle recovery device provided at the lower portion of the first column; and a control device configured to control a wind speed by an amount of gas to be introduced into the first column. The first column has a weak rotational airflow generation mechanism to smooth wind speed distribution in a cross-section of a tube of the first column by making it substantially W-shaped from a portion of a wall of the tube to the center of the tube to another portion of the wall of the tube. The heavy particle recovery device recovers from the sample, heavy particles falling down. The airflow separator recovers emission gas, intermediate and light particles from an upper portion of the first column.Type: GrantFiled: February 7, 2013Date of Patent: November 21, 2017Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Tatsuya Oki, Tomohiro Noguchi
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Publication number: 20170128952Abstract: The present invention provides a sorting device and a sorting method for sorting a magnetically attractable substance and a non-magnetically attractable substance from a sorting target using a high gradient magnetic separator.Type: ApplicationFiled: June 9, 2015Publication date: May 11, 2017Inventors: Tatsuya OKI, Tomohiro NOGUCHI, Taeko HAZUMI
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Patent number: 9539584Abstract: A weak magnetic force magnetic separator, including: a belt conveyor conveying separation target particles; and a suspended magnet unit provided at a distance above the belt conveyor and configured to magnetically attract, with a uniform, weak magnetic force, the separation target particles conveyed over a belt. With a length of the magnet unit in its longer direction being greater than a belt width of the belt, and with the magnet unit placed such that its longer direction is aligned with the belt width direction and its both ends overhang the belt width, and such that a distance from the surface of the belt is constant across its longer direction, magnetic flux density variations in the belt width direction over the belt surface facing the magnet unit are 10% or less within a weak magnetic force range of from over 0 to 700 gauss.Type: GrantFiled: February 7, 2013Date of Patent: January 10, 2017Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Tatsuya Oki, Yoko Umemiya
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Publication number: 20160151788Abstract: To provide matrix for magnetic separator capable of sorting magnetic and non-magnetic particles highly accurately and efficiently and enabling previous simulative recognition of correct magnetic force distribution in matrix space, and magnetic separator.Type: ApplicationFiled: June 30, 2014Publication date: June 2, 2016Inventors: Tatsuya OKI, Taeko HAZUMI, Tomohiro NOGUCHI
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Publication number: 20150231669Abstract: An airflow separator of the present invention includes: a first column into which gas is introduced from a lower portion and inside which a sample is made to flow; a heavy particle recovery device provided at the lower portion of the first column; and a control device configured to control a wind speed by an amount of gas to be introduced into the first column. The first column has a weak rotational airflow generation mechanism to smooth wind speed distribution in a cross-section of a tube of the first column by making it substantially W-shaped from a portion of a wall of the tube to the center of the tube to another portion of the wall of the tube. The heavy particle recovery device recovers from the sample, heavy particles falling down. The airflow separator recovers emission gas, intermediate and light particles from an upper portion of the first column.Type: ApplicationFiled: February 7, 2013Publication date: August 20, 2015Inventors: Tatsuya Oki, Tomohiro Noguchi
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Publication number: 20150101965Abstract: A weak magnetic force magnetic separator, including: a belt conveyor conveying separation target particles; and a suspended magnet unit provided at a distance above the belt conveyor and configured to magnetically attract, with a uniform, weak magnetic force, the separation target particles conveyed over a belt. With a length of the magnet unit in its longer direction being greater than a belt width of the belt, and with the magnet unit placed such that its longer direction is aligned with the belt width direction and its both ends overhang the belt width, and such that a distance from the surface of the belt is constant across its longer direction, magnetic flux density variations in the belt width direction over the belt surface facing the magnet unit are 10% or less within a weak magnetic force range of from over 0 to 700 gauss.Type: ApplicationFiled: February 7, 2013Publication date: April 16, 2015Inventors: Tatsuya Oki, Yoko Umemiya
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Patent number: 8216952Abstract: The object of the present invention is to provide a fabric treating agent to satisfy good sewability required to interior material fabrics for vehicles including automobiles and trains, the good sewability which arises from the trend toward ultrafiner fibers for manufacturing the fabrics, change in fabric structure from weave to knit, and increasing sewing machine speed. The present invention provides the fabric treating agent comprising at least one wax (a) selected from the group consisting of a paraffin wax having a melting point of 60° C. or higher, an oxidized paraffin wax having a melting point of 60° C. or higher, a polyethylene wax having a melting point of 100° C. or higher, and an oxidized polyethylene wax having a melting point of 100° C. or higher; and a nonionic surfactant (b). The present invention also provides a process for producing fabrics applied with the fabric treating agent, and provides vehicle interior material fabrics.Type: GrantFiled: October 17, 2007Date of Patent: July 10, 2012Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.Inventors: Tatsuya Oki, Masateru Kotera, Yoshihiro Kando
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Patent number: 7988610Abstract: A particle separation apparatus includes a base, a disc-shaped container rotatable on the base at a constant speed and a suspension supply tank for separating in the container particles contained in a suspension supplied from the tank according to specific gravities or particle diameters of the particles. The container includes a plurality of centrifugation vessels disposed around a rotation axis and in a circumferential direction of the container, particle supply cylinders disposed at a center of the container for discharging the particles in the suspension toward the vessels and a lid, and has a structure controllable in rotational speed to adjust a distance of relative movement in a rotation direction between large-gravity particles and small-gravity particles. The vessels are individually in a form of dents independent of one another and are each formed of an inner circumferential wall and a bottom wall.Type: GrantFiled: July 23, 2007Date of Patent: August 2, 2011Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Tatsuya Oki, Hiroki Yotsumoto, Mikio Kobayashi
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Publication number: 20100035493Abstract: The object of the present invention is to provide a fabric treating agent to satisfy good sewability required to interior material fabrics for vehicles including automobiles and trains, the good sewability which arises from the trend toward ultrafiner fibers for manufacturing the fabrics, change in fabric structure from weave to knit, and increasing sewing machine speed. The present invention provides the fabric treating agent comprising at least one wax (a) selected from the group consisting of a paraffin wax having a melting point of 60° C. or higher, an oxidized paraffin wax having a melting point of 60° C. or higher, a polyethylene wax having a melting point of 100° C. or higher, and an oxidized polyethylene wax having a melting point of 100° C. or higher; and a nonionic surfactant (b). The present invention also provides a process for producing fabrics applied with the fabric treating agent, and provides vehicle interior material fabrics.Type: ApplicationFiled: October 17, 2007Publication date: February 11, 2010Applicant: MATSUMOTO YUSHI-SEIYAKU CO., LTD.Inventors: Tatsuya Oki, Masateru Kotera, Yoshihiro Kando
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Publication number: 20080023380Abstract: A particle separation apparatus includes a base, a disc-shaped container rotatable on the base at a constant speed and a suspension supply tank for separating in the container particles contained in a suspension supplied from the tank according to specific gravities or particle diameters of the particles. The container includes a plurality of centrifugation vessels disposed around a rotation axis and in a circumferential direction of the container, particle supply cylinders disposed at a center of the container for discharging the particles in the suspension toward the vessels and a lid, and has a structure controllable in rotational speed to adjust a distance of relative movement in a rotation direction between large-gravity particles and small-gravity particles. The vessels are individually in a form of dents independent of one another and are each formed of an inner circumferential wall and a bottom wall.Type: ApplicationFiled: July 23, 2007Publication date: January 31, 2008Applicant: National Institute of Adv Industrial Sci and TechInventors: Tatsuya Oki, Hiroki Yotsumoto, Mikio Kobayashi
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Patent number: 6307170Abstract: A device for capturing negatively or positively charged fine particles dispersed in a liquid includes a rotor having an outer surface charged in a polarity opposite to the particles and arranged to be rotated. By rotating the rotor while being maintained in contact with the liquid, the particles are captured on the outer surface thereof. Control of the rotational speed of the rotor makes it possible to selectively separate particles with desired particle sizes.Type: GrantFiled: January 19, 2000Date of Patent: October 23, 2001Assignee: Secretary of Agency of Industrial Science and TechnologyInventors: Tatsuya Oki, Hiroki Yotsumoto
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Patent number: 5592652Abstract: A computer system having an address space change-over circuit 8 capable of changing-over the allocation of an area of an internal ROM 22 in an address space either to an allocation in the address space most suitable for a single-chip microcomputer 20 or to an allocation in the address space more preferable for a case of connecting external memories 32, 33, and is capable of easily changing-over the address space allocation depending on whether the system operates as a single-chip microcomputer or operates as a system with external memories connected thereto.Type: GrantFiled: May 5, 1995Date of Patent: January 7, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Katsunobu Hongo, Tatsuya Oki