Patents by Inventor Takashi Matsuno
Takashi Matsuno 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: 11904374Abstract: A sheet-shaped blank (10) for press forming is produced by shearing a metal sheet (30). The blank (10) includes a sheared edge (14), which includes a sheared surface (14b) and a fractured surface (14c) in the sheet thickness direction and has a loop shape in plan view. In plan view, an edge of the sheared edge (14) includes concavely curved portions (20). The average of lengths of the fractured surface (14c) in the sheet thickness direction in the curved portions (20) is greater than the average of lengths of the fractured surface (14c) in the sheet thickness direction over the entire perimeter of the sheared edge (14).Type: GrantFiled: March 11, 2020Date of Patent: February 20, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Takashi Matsuno, Akira Egami
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Patent number: 11224908Abstract: A cutting method using a stamping press according to the present disclosure is a method to cut a workpiece that is configured from a first metal sheet and a second metal sheet joined at a weld portion and that has a heat-affected zone around the weld portion, in which the workpiece is cut using a punch. The punch includes a flat portion and a projecting portion projected more toward the workpiece than a flat portion of the punch. The workpiece is positioned with respect to the punch at a position such that the projecting portion starts cutting at least at one out of the heat-affected zone or the weld portion before the flat portion cuts the workpiece. The workpiece is then cut by moving the punch and a die relative to each other in this state of positioning so as to shear across the weld portion on the workpiece.Type: GrantFiled: September 28, 2016Date of Patent: January 18, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Takashi Yasutomi, Takashi Matsuno, Tohru Yoshida
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Patent number: 11111144Abstract: An ozone gas generator includes a first electrode portion that includes a first electrode, and a second electrode portion that faces the first electrode portion, is disposed with a predetermined interval at which discharge between the first electrode portion and the second electrode portion is possible, and includes a second electrode, in which at least one of the first electrode portion and the second electrode portion includes a dielectric that is provided on a surface of the first electrode or the second electrode on sides facing each other, and at least one of the first electrode portion and the second electrode portion includes a layer that is provided on at least a portion of the surface of the first electrode or the second electrode on the sides facing each other, or the dielectric, and includes at least one of a metal or a metal compound, and the first electrode portion and the second electrode portion are configured such that accuracy of an interval between surfaces facing each other is ±3% or more aType: GrantFiled: March 21, 2017Date of Patent: September 7, 2021Assignee: Sumitomo Precision Products Co., Ltd.Inventor: Takashi Matsuno
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Publication number: 20200230682Abstract: A sheet-shaped blank (10) for press forming is produced by shearing a metal sheet (30). The blank (10) includes a sheared edge (14), which includes a sheared surface (14b) and a fractured surface (14c) in the sheet thickness direction and has a loop shape in plan view. In plan view, an edge of the sheared edge (14) includes concavely curved portions (20). The average of lengths of the fractured surface (14c) in the sheet thickness direction in the curved portions (20) is greater than the average of lengths of the fractured surface (14c) in the sheet thickness direction over the entire perimeter of the sheared edge (14).Type: ApplicationFiled: March 11, 2020Publication date: July 23, 2020Inventors: Takashi MATSUNO, Akira Egami
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Patent number: 10639698Abstract: Provided is a steel material shearing method that enables highly productive and low-cost production of a steel material with a sheared surface having excellent hydrogen embrittlement resistance, fatigue strength, and stretch flangeability. The shearing method comprises making a clearance between a die and a punch 5 to 80% of a sheet thickness of a workpiece, shearing the workpiece using the punch, and, by utilizing a punched material punched out by the punch, pressing an end face of the punched out material against the sheared surface of the worked material on the die to produce a steel sheet with a sheared edge having excellent hydrogen embrittlement resistance and fatigue strength.Type: GrantFiled: February 25, 2016Date of Patent: May 5, 2020Assignee: NIPPON STEEL CORPORATIONInventors: Takashi Yasutomi, Takashi Matsuno, Shigeru Yonemura, Tohru Yoshida
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Patent number: 10625325Abstract: A sheet-shaped blank (10) for press forming is produced by shearing a metal sheet (30). The blank (10) includes a sheared edge (14), which includes a sheared surface (14b) and a fractured surface (14c) in the sheet thickness direction and has a loop shape in plan view. In plan view, an edge of the sheared edge (14) includes concavely curved portions (20). The average of lengths of the fractured surface (14c) in the sheet thickness direction in the curved portions (20) is greater than the average of lengths of the fractured surface (14c) in the sheet thickness direction over the entire perimeter of the sheared edge (14).Type: GrantFiled: December 10, 2014Date of Patent: April 21, 2020Assignee: NIPPON STEEL CORPORATIONInventors: Takashi Matsuno, Akira Egami
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Patent number: 10335846Abstract: In a manufacturing method of sheared components, the shearing including a process of fixing a workpiece to a die, and a process of punching the workpiece by bringing a punch and the die relatively close to each other, is performed a plurality of times, and when a shearing sequence is started, the shearing is performed by using a punch including a first cutting edge having a first tip end surface which opposes the workpiece, and a first retracting surface which retracts from the first tip end surface considering an approaching direction to the die as a standard; and a die including a second cutting edge having a second tip end surface which opposes the workpiece, and a second retracting surface which retracts from the second tip end surface considering an approaching direction to the punch as a standard.Type: GrantFiled: May 7, 2015Date of Patent: July 2, 2019Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Takashi Matsuno, Koichi Sato, Takashi Yasutomi
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Publication number: 20190071309Abstract: An ozone gas generator includes a first electrode portion that includes a first electrode, and a second electrode portion that faces the first electrode portion, is disposed with a predetermined interval at which discharge between the first electrode portion and the second electrode portion is possible, and includes a second electrode, in which at least one of the first electrode portion and the second electrode portion includes a dielectric that is provided on a surface of the first electrode or the second electrode on sides facing each other, and at least one of the first electrode portion and the second electrode portion includes a layer that is provided on at least a portion of the surface of the first electrode or the second electrode on the sides facing each other, or the dielectric, and includes at least one of a metal or a metal compound, and the first electrode portion and the second electrode portion are configured such that accuracy of an interval between surfaces facing each other is ±3% or more aType: ApplicationFiled: March 21, 2017Publication date: March 7, 2019Inventor: Takashi MATSUNO
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Publication number: 20180333760Abstract: Provided is a steel material shearing method that enables highly productive and low-cost production of a steel material with a sheared surface having excellent hydrogen embrittlement resistance, fatigue strength, and stretch flangeability. The shearing method comprises making a clearance between a die and a punch 5 to 80% of a sheet thickness of a workpiece, shearing the workpiece using the punch, and, by utilizing a punched material punched out by the punch, pressing an end face of the punched out material against the sheared surface of the worked material on the die to produce a steel sheet with a sheared edge having excellent hydrogen embrittlement resistance and fatigue strength.Type: ApplicationFiled: February 25, 2016Publication date: November 22, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Takashi YASUTOMI, Takashi MATSUNO, Shigeru YONEMURA, Tohru YOSHIDA
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Publication number: 20180272408Abstract: A cutting method using a stamping press according to the present disclosure is a method to cut a workpiece that is configured from a first metal sheet and a second metal sheet joined at a weld portion and that has a heat-affected zone around the weld portion, in which the workpiece is cut using a punch. The punch includes a flat portion and a projecting portion projected more toward the workpiece than a flat portion of the punch. The workpiece is positioned with respect to the punch at a position such that the projecting portion starts cutting at least at one out of the heat-affected zone or the weld portion before the flat portion cuts the workpiece. The workpiece is then cut by moving the punch and a die relative to each other in this state of positioning so as to shear across the weld portion on the workpiece.Type: ApplicationFiled: September 28, 2016Publication date: September 27, 2018Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Takashi YASUTOMI, Takashi MATSUNO, Tohru YOSHIDA
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Publication number: 20180022607Abstract: This ozone gas generator includes a pair of electrodes disposed at a predetermined interval to face each other, a pair of dielectrics provided on surfaces of the pair of electrodes that face each other, respectively, and a functional film provided on at least one of surfaces of the pair of dielectrics that face each other. The functional film contains a crystalline compound of a titanium oxide and a niobium oxide.Type: ApplicationFiled: February 10, 2016Publication date: January 25, 2018Applicant: Sumitomo Precision Products Co., Ltd.Inventor: Takashi MATSUNO
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Publication number: 20170320122Abstract: A sheet-shaped blank (10) for press forming is produced by shearing a metal sheet (30). The blank (10) includes a sheared edge (14), which includes a sheared surface (14b) and a fractured surface (14c) in the sheet thickness direction and has a loop shape in plan view. In plan view, an edge of the sheared edge (14) includes concavely curved portions (20). The average of lengths of the fractured surface (14c) in the sheet thickness direction in the curved portions (20) is greater than the average of lengths of the fractured surface (14c) in the sheet thickness direction over the entire perimeter of the sheared edge (14).Type: ApplicationFiled: December 10, 2014Publication date: November 9, 2017Inventors: Takashi MATSUNO, Akira EGAMI
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Publication number: 20170080475Abstract: In a manufacturing method of sheared components, the shearing including a process of fixing a workpiece to a die, and a process of punching the workpiece by bringing a punch and the die relatively close to each other, is performed a plurality of times, and when a shearing sequence is started, the shearing is performed by using a punch including a first cutting edge having a first tip end surface which opposes the workpiece, and a first retracting surface which retracts from the first tip end surface considering an approaching direction to the die as a standard; and a die including a second cutting edge having a second tip end surface which opposes the workpiece, and a second retracting surface which retracts from the second tip end surface considering an approaching direction to the punch as a standard.Type: ApplicationFiled: May 7, 2015Publication date: March 23, 2017Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Takashi MATSUNO, Koichi SATO, Takashi YASUTOMI
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Publication number: 20160067760Abstract: Provided is a surface layer grain refining hot-shearing method including: heating and keeping a steel sheet in a temperature range of from Ac3 to 1400° C. to austenitize the steel sheet; subsequently shearing the steel sheet in a state in which the steel sheet is placed on a die; and quenching by rapidly cooling the sheared steel sheet, wherein a start temperature of the shearing is set to be a temperature (° C.) obtained by adding a temperature of from 30° C. to 140° C. to a previously measured Ar3 of the steel sheet.Type: ApplicationFiled: May 9, 2013Publication date: March 10, 2016Inventors: Takashi MATSUNO, Yoshihito SEKITO, Tamaki SUZUKI, Kaoru KAWASAKI, Atsushi SETO
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Patent number: 9206940Abstract: A structure including a structural member configured like a frame with four sides is disclosed. A closed cross-section structural member serving as a reinforcing material is provided in a crossing corner of the structural member. The closed cross-section structural member includes two horizontal portions separated from each other in a thickness direction of the structural member and extending in an in-plane direction of the structural member and two vertical portions one of which connects first ends of the two horizontal portions together and the other of which connects second ends of the two horizontal portions together. The closed cross-section structural member includes a first opening formed therein facing an inner-peripheral flat surface of the structural member and a second opening formed therein facing inside of the structural member.Type: GrantFiled: December 5, 2014Date of Patent: December 8, 2015Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Atsushi Seto, Takashi Matsuno, Eisaku Sakurada
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Patent number: 9193591Abstract: A dielectric 13 is provided on each of opposing surfaces of a pair of electrodes 14. Discharge gaps 20 communicating with a raw material gas supply path and an ozone gas removal path are formed between the pair of dielectrics 13. A functional film 17 is formed on each of the pair of dielectrics 13 so as to face the discharge gaps 20. The functional film 17 contains a first metal oxide of one or more metals selected from a group consisting of niobium, tantalum, molybdenum, and chromium, and a second metal oxide of one or more metals selected from a group consisting of titanium, tungsten, zinc, and iron.Type: GrantFiled: September 21, 2010Date of Patent: November 24, 2015Assignee: Sumitomo Precision Products Co., Ltd.Inventors: Takashi Matsuno, Osamu Takemura
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Publication number: 20150152995Abstract: A structure including a structural member configured like a frame with four sides is disclosed. A closed cross-section structural member serving as a reinforcing material is provided in a crossing corner of the structural member. The closed cross-section structural member includes two horizontal portions separated from each other in a thickness direction of the structural member and extending in an in-plane direction of the structural member and two vertical portions one of which connects first ends of the two horizontal portions together and the other of which connects second ends of the two horizontal portions together. The closed cross-section structural member includes a first opening formed therein facing an inner-peripheral flat surface of the structural member and a second opening formed therein facing inside of the structural member.Type: ApplicationFiled: December 5, 2014Publication date: June 4, 2015Inventors: Atsushi Seto, Takashi Matsuno, Eisaku Sakurada
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Patent number: 9047724Abstract: Provided is a fare box which enables passengers to smoothly pay fares using bills without hesitation even when a bill transportation passage is disabled due to jamming of a bill or a breakdown. Two entrances, which are a bill normal receiving opening and a bill backup receiving opening, are provided as bill receiving openings of the fare box. Either of the bill normal receiving opening and the bill backup receiving opening is allowed to be selectively opened by a shutter member. At normal times, the bill normal receiving opening is put into operation with the shutter member positioned at a normal position. When a bill normal transportation passage has become jammed with a bill, the shutter member is shifted from the normal position to a bypass position on the basis of an operation performed on a bill receiving opening switch lever, whereby the bill backup receiving opening is opened instead of the bill normal receiving opening.Type: GrantFiled: January 20, 2014Date of Patent: June 2, 2015Assignee: LECIP CORPORATIONInventors: Kenji Kimoto, Yasuhiro Suzuki, Takashi Matsuno
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Patent number: 9047725Abstract: Provided is a fare box which enables passengers to smoothly pay fares using bills without hesitation even when a bill transportation passage is disabled due to jamming of a bill or a breakdown. Two entrances, which are a bill normal receiving opening and a bill backup receiving opening, are provided as bill receiving openings of the fare box. Either of the bill normal receiving opening and the bill backup receiving opening is allowed to be selectively opened by a shutter member. At normal times, the bill normal receiving opening is put into operation with the shutter member positioned at a normal position. When a bill normal transportation passage has become jammed with a bill, the shutter member is shifted from the normal position to a bypass position on the basis of an operation performed on a bill receiving opening switch lever, whereby the bill backup receiving opening is opened instead of the bill normal receiving opening.Type: GrantFiled: January 20, 2014Date of Patent: June 2, 2015Assignee: LECIP CORPORATIONInventors: Kenji Kimoto, Yasuhiro Suzuki, Takashi Matsuno
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Patent number: 8960529Abstract: Provided is a fare box which enables passengers to smoothly pay fares using bills without hesitation even when a bill transportation passage is disabled due to jamming of a bill or a breakdown. Two entrances, which are a bill normal receiving opening and a bill backup receiving opening, are provided as bill receiving openings of the fare box. Either of the bill normal receiving opening and the bill backup receiving opening is allowed to be selectively opened by a shutter member. At normal times, the bill normal receiving opening is put into operation with the shutter member positioned at a normal position. When a bill normal transportation passage has become jammed with a bill, the shutter member is shifted from the normal position to a bypass position on the basis of an operation performed on a bill receiving opening switch lever, whereby the bill backup receiving opening is opened instead of the bill normal receiving opening.Type: GrantFiled: January 20, 2014Date of Patent: February 24, 2015Assignee: Lecip CorporationInventors: Kenji Kimoto, Yasuhiro Suzuki, Takashi Matsuno