Patents by Inventor Kyohei Ishida
Kyohei Ishida 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: 20230330802Abstract: A flaw grinding system, a flaw grinding method, and a steel-product manufacturing method enable automation of the task of grinding a flaw on the surface of a workpiece having a three-dimensional shape, while also reducing the occurrence of faulty grinding such as over-grinding or under-grinding. The flaw grinding system includes a grinding apparatus, a shape measurement apparatus, a flaw detection apparatus, and a grinding-tool control apparatus. The grinding apparatus includes a grinding tool that grinds a flaw on a surface of a workpiece. The shape measurement apparatus measures a three-dimensional shape and an attitude of the workpiece. The flaw detection apparatus detects a location of the flaw on the workpiece. The grinding-tool control apparatus generates a trajectory of the grinding tool to grind the flaw. The grinding-tool control apparatus controls the grinding apparatus in a manner that causes the grinding tool to move along the trajectory.Type: ApplicationFiled: July 28, 2021Publication date: October 19, 2023Applicant: JFE STEEL CORPORATIONInventors: Taku WATANABE, Kyohei ISHIDA, Koji YAMASHITA
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Patent number: 11718587Abstract: A novel compound suitable as an epoxy curing catalyst; an epoxy curing catalyst using the compound; and a method for producing the compound. A compound represented by formula (1) in which Xm+ represents an m valent counter cation, R1 represents an aromatic group which may have a substituent; R2 represents an alkylene group which may have a substituent; R3 represents a halogen atom, a hydroxyl group, a mercapto group, a sulfide group, a silyl group, a silanol group, a nitro group, a nitroso group, a sulfonic acid ester group, a phosphino group, a phosphinyl group, a phosphonic acid ester group or an organic group; m represents an integer of 1 or more; n represents an integer of 0-3; and R2 may bond with R1 to form a cyclic structure.Type: GrantFiled: September 26, 2018Date of Patent: August 8, 2023Assignees: Tokyo Ohka Kogyo Co., Ltd., Daicel CorporationInventors: Kunihiro Noda, Hiroki Chisaka, Issei Suzuki, Jiro Hikida, Dai Shiota, Kieko Hanano, Kyohei Ishida, Tsutomu Watanabe, Kazuhiro Uehara
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Publication number: 20230174347Abstract: A lifting magnet including a plurality of electromagnetic coils that are disposed in a nesting arrangement and capable of being independently ON/OFF-controlled and voltage-controlled. By using the plurality of electromagnetic coils in a selective or appropriately combined manner, the lifting magnet secures a sufficient magnetic flux penetration depth during conveyance of steel plates, and can easily and highly precisely control the magnetic flux penetration depth in accordance with the number of steel plates to be lifted.Type: ApplicationFiled: May 20, 2021Publication date: June 8, 2023Applicant: JFE STEEL CORPORATIONInventors: Yuki TAKAKI, Yusuke YOSHINARI, Kyohei ISHIDA, Masami TATE, Takeshi TAKI
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Publication number: 20230114759Abstract: A cleaning device that can properly and efficiently clean a place such as a coke oven top part where an obstacle is present, can perform cleaning irrespective of whether or not a coal charging car is operating, and has a simple and compact structure and a method for cleaning an oven top of a coke oven. The cleaning device travels on a road surface and collects an accumulated substance accumulated on the road surface and includes a travelling trolley, a collector provided on a front face part of the travelling trolley that collects the accumulated substance accumulated on the road surface in front of the travelling trolley as the travelling trolley travels forward, and a sweeper provided on the travelling trolley and that sweeps the accumulated substance accumulated on the road surface beside the travelling trolley toward a position in front of the travelling trolley.Type: ApplicationFiled: February 9, 2021Publication date: April 13, 2023Applicant: JFE STEEL CORPORATIONInventors: Ryota FUKUCHI, Masaki KOBAYASHI, Yuki TAKAKI, Kyohei ISHIDA
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Patent number: 10876194Abstract: A metal strip stabilization apparatus includes: a displacement measurement unit configured to measure a displacement of a metal strip during traveling in a non-contact manner; a control unit configured to generate a vibration suppression signal and a position correction signal based on a measurement signal; and an electromagnet unit including: a vibration suppression coil configured to generate a first magnetic force based on the vibration suppression signal; a position correction coil configured to generate a second magnetic force based on the position correction signal; and a core about which the vibration suppression coil and the position correction coil are wound concentrically, the core leading the first magnetic force.Type: GrantFiled: September 30, 2015Date of Patent: December 29, 2020Assignee: JFE Steel CorporationInventors: Yusuke Ishigaki, Yoshiaki Nishina, Kyohei Ishida
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Patent number: 10857548Abstract: A magnetic separator comprises: at least one pair of guide rolls; and a conveyor belt that extends between the pair of guide rolls, and conveys a powdery and/or granular material containing ferromagnetic particles, wherein one guide roll of the pair of guide rolls is a hollow roll, and includes, in a hollow part thereof, a magnet roll including a plurality of magnets that are arranged along an inner peripheral surface of the guide roll in lines at intervals so that different magnetic poles alternate in a circumferential direction, and the magnetic separator further comprises a shield wall that covers a circular arc region of an outer peripheral surface of the guide roll except a circular arc region around which the conveyor belt is wound, to block magnetic lines of force from the plurality of magnets.Type: GrantFiled: November 30, 2016Date of Patent: December 8, 2020Assignee: JFE STEEL CORPORATIONInventors: Kyohei Ishida, Yuki Takaki
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Patent number: 10829586Abstract: The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency.Type: GrantFiled: December 16, 2019Date of Patent: November 10, 2020Assignee: DAECEL CORPORATIONInventors: Takeshi Fujikawa, Kyohei Ishida
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Publication number: 20200115491Abstract: The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): the component (A): an alicyclic epoxy compound represented by the following formula (a): the component (B): a light resistance imparting agent having a maximum absorption wavelength in a region between 280 and 320 nm in an ultraviolet-visible light absorption spectrum from 250 to 400 nm; and the component (C): an optical cationic polymerization initiator: wherein R1 to R18 are the same as or different from one another and represent a hydrogen atom, a halogen atom, a hydrocarbon group that may contain an oxygen atom or a halogen atom, or an alkoxy group that may have a substituent; and X represents a single bond or a linking group.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: DAICEL CORPORATIONInventors: Takeshi FUJIKAWA, Kyohei ISHIDA
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Patent number: 10584200Abstract: The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): the component (A): an alicyclic epoxy compound represented by the following formula (a): the component (B): a light resistance imparting agent having a maximum absorption wavelength in a region between 280 and 320 nm in an ultraviolet-visible light absorption spectrum from 250 to 400 nm; and the component (C): an optical cationic polymerization initiator: wherein R1 to R18 are the same as or different from one another and represent a hydrogen atom, a halogen atom, a hydrocarbon group that may contain an oxygen atom or a halogen atom, or an alkoxy group that may have a substituent; and X represents a single bond or a linking group.Type: GrantFiled: July 14, 2016Date of Patent: March 10, 2020Assignee: DAICEL CORPORATIONInventors: Takeshi Fujikawa, Kyohei Ishida
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Patent number: 10550219Abstract: The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): the component (A): an alicyclic epoxy compound represented by the following formula (a): the component (B): a light resistance imparting agent having a maximum absorption wavelength in a region between 280 and 320 nm in an ultraviolet-visible light absorption spectrum from 250 to 400 nm; and the component (C): an optical cationic polymerization initiator: wherein R1 to R18 are the same as or different from one another and represent a hydrogen atom, a halogen atom, a hydrocarbon group that may contain an oxygen atom or a halogen atom, or an alkoxy group that may have a substituent; and X represents a single bond or a linking group.Type: GrantFiled: July 14, 2016Date of Patent: February 4, 2020Assignee: DAICEL CORPORATIONInventors: Takeshi Fujikawa, Kyohei Ishida
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Publication number: 20180353969Abstract: A magnetic separator comprises: at least one pair of guide rolls; and a conveyor belt that extends between the pair of guide rolls, and conveys a powdery and/or granular material containing ferromagnetic particles, wherein one guide roll of the pair of guide rolls is a hollow roll, and includes, in a hollow part thereof, a magnet roll including a plurality of magnets that are arranged along an inner peripheral surface of the guide roll in lines at intervals so that different magnetic poles alternate in a circumferential direction, and the magnetic separator further comprises a shield wall that covers a circular arc region of an outer peripheral surface of the guide roll except a circular arc region around which the conveyor belt is wound, to block magnetic lines of force from the plurality of magnets.Type: ApplicationFiled: November 30, 2016Publication date: December 13, 2018Applicant: JFE STEEL CORPORATIONInventors: Kyohei ISHIDA, Yuki TAKAKI
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Publication number: 20180230260Abstract: The present invention provides a curable composition excellent in curability and capable of forming, through light irradiation, a cured product excellent in light resistance, heat resistance, and transparency. The curable composition contains the following component (A), the following component (B), and the following component (C): the component (A): an alicyclic epoxy compound represented by the following formula (a): the component (B): a light resistance imparting agent having a maximum absorption wavelength in a region between 280 and 320 nm in an ultraviolet-visible light absorption spectrum from 250 to 400 nm; and the component (C): an optical cationic polymerization initiator: wherein R1 to R18 are the same as or different from one another and represent a hydrogen atom, a halogen atom, a hydrocarbon group that may contain an oxygen atom or a halogen atom, or an alkoxy group that may have a substituent; and X represents a single bond or a linking group.Type: ApplicationFiled: July 14, 2016Publication date: August 16, 2018Applicant: DAICEL CORPORATIONInventors: Takeshi FUJIKAWA, Kyohei ISHIDA
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Publication number: 20180134838Abstract: Provided is a photocurable composition which less causes resin-induced swelling of molds, allows the molds to endure more satisfactorily, and has excellent economic efficiency. This photocurable composition includes components (A), (B), (C), and (D). The component (A) is present in a content of 10 to 50 weight percent of the totality of photocurable compounds contained in the photocurable composition. The component (A) is a cycloaliphatic epoxy compound represented by Formula (a). The component (B) is an oxetane compound having a solubility parameter of 9.5 (cal/cm3)1/2 or more as determined by the Fedors' method. The component (C) is a glycidyl ether epoxy compound having a molecular weight of 250 or more. The component (D) is a photoinitiator: wherein R1 to R18 are each, identically or differently, selected from hydrogen, halogen, a hydrocarbon group optionally containing oxygen or halogen, and optionally substituted alkoxy; and X is selected from a single bond and a linkage group.Type: ApplicationFiled: May 24, 2016Publication date: May 17, 2018Applicant: DAICEL CORPORATIONInventors: Takeshi FUJIKAWA, Kyohei ISHIDA
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Patent number: 9856347Abstract: Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. The curable composition according to the present invention includes a cycloaliphatic epoxide (A), a siloxane compound (B), and a curing agent (C). The cycloaliphatic epoxide (A) is represented by Formula (1). The siloxane compound (B) contains two or more glycidyl groups per molecule. In the formula, X is selected from a single bond and a linkage group.Type: GrantFiled: February 16, 2015Date of Patent: January 2, 2018Assignee: DAICEL CORPORATIONInventors: Hiroki Takenaka, Kyohei Ishida
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Publication number: 20170327936Abstract: A metal strip stabilization apparatus includes: a displacement measurement unit configured to measure a displacement of a metal strip during traveling in a non-contact manner; a control unit configured to generate a vibration suppression signal and a position correction signal based on a measurement signal; and an electromagnet unit including: a vibration suppression coil configured to generate a first magnetic force based on the vibration suppression signal; a position correction coil configured to generate a second magnetic force based on the position correction signal; and a core about which the vibration suppression coil and the position correction coil are wound concentrically, the core leading the first magnetic forceType: ApplicationFiled: September 30, 2015Publication date: November 16, 2017Applicant: JFE STEEL CORPORATIONInventors: Yusuke Ishigaki, Yoshiaki Nishina, Kyohei Ishida
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Publication number: 20170009003Abstract: Provided is a curable composition that is rapidly cured to form a cured product. The cured product resists yellowing, successfully maintains excellent transparency over a long time even in a high-temperature environment, and is advantageously usable as or in a wafer-level lens. The curable composition according to the present invention includes a cycloaliphatic epoxide (A), a siloxane compound (B), and a curing agent (C). The cycloaliphatic epoxide (A) is represented by Formula (1). The siloxane compound (B) contains two or more glycidyl groups per molecule. In the formula, X is selected from a single bond and a linkage group.Type: ApplicationFiled: February 16, 2015Publication date: January 12, 2017Applicant: DAICEL CORPORATIONInventors: Hiroki TAKENAKA, Kyohei ISHIDA
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Patent number: 7361385Abstract: The invention relates to a method for manufacturing a hot-dip plated metal strip comprising the steps of: introducing a metal strip into a molten metal bath of plating metal to adhere the molten metal onto the surface of the metal strip; taking out the metal strip, after turning the running direction of the metal strip, from the molten metal bath without applying external force from outside the surface of the metal strip; adjusting the plating weight of the molten metal adhered onto the metal strip; and controlling the shape of the metal strip using magnetic force in non-contact state directly before or after the step of adjusting the coating weight. The invention prevents adhesion of dross to the metal strip without degrading the productivity, and thus manufactures a high quality hot-dip plated metal strip.Type: GrantFiled: November 7, 2002Date of Patent: April 22, 2008Assignee: NKK CorporationInventors: Kazuhisa Kabeya, Kyohei Ishida, Munehiro Ishioka, Hideyuki Takahashi, Toshio Ishii, Yoichi Miyakawa, Akira Gamou, Yoshikazu Suzuki
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Publication number: 20030077397Abstract: The invention relates to a method for manufacturing a hot-dip plated metal strip comprising the steps of: introducing a metal strip into a molten metal bath of plating metal to adhere the molten metal onto the surface of the metal strip; taking out the metal strip, after turning the running direction of the metal strip, from the molten metal bath without applying external force from outside the surface of the metal strip; adjusting the plating weight of the molten metal adhered onto the metal strip; and controlling the shape of the metal strip using magnetic force in non-contact state directly before or after the step of adjusting the coating weight. The invention prevents adhesion of dross to the metal strip without degrading the productivity, and thus manufactures a high quality hot-dip plated metal strip.Type: ApplicationFiled: November 7, 2002Publication date: April 24, 2003Applicant: NKK CorporationInventors: Kazuhisa Kabeya, Kyohei Ishida, Munehiro Ishioka, Hideyuki Takahashi, Toshio Ishii, Yoichi Miyakawa, Akira Gamou, Yoshikazu Suzuki