Patents by Inventor Junya Okida
Junya Okida 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: 20230158579Abstract: The boundary flow path is constituted of a pair of boundary wall surfaces facing each other in a first cross section intersecting each of the first flow path, the boundary flow path, and the second flow path. An inclination of a tangent to at least one of the pair of boundary wall surfaces is continuously changed. In a second cross section perpendicular to a direction in which coolant flows, a lateral width of the first flow path is larger than a longitudinal width of the first flow path and a lateral width of the second flow path is larger than a longitudinal width of the second flow path when a longitudinal direction represents a direction in which the pair of boundary wall surfaces face each other and a lateral direction represents a direction perpendicular to the longitudinal direction.Type: ApplicationFiled: March 2, 2021Publication date: May 25, 2023Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Yifan WEN, Yosuke SHIMAMOTO, Naoya TSUDA, Yasuhiko OKITA, Taiga SUEYOSHI, Junya OKIDA
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Patent number: 11185930Abstract: A cutting edge includes a nose portion, a first cutting edge portion, and a second cutting edge portion. When a boundary between a first inclined portion and a first breaker portion, a boundary between a first step surface and a second breaker portion, a boundary between a second inclined portion and a third breaker portion, and a boundary between a second step surface and a fourth breaker portion are a first position, a second position, a third position, and a fourth position, respectively, the second position is higher than the first position and the fourth position is higher than the third position in a direction perpendicular to the seating surface, and a distance between the first position and the third position is greater than a distance between the second position and the fourth position in a direction parallel to the seating surface.Type: GrantFiled: July 26, 2017Date of Patent: November 30, 2021Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yosuke Shimamoto, Naoki Matsuda, Hideo Maeno, Junya Okida
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Patent number: 10926337Abstract: The upper surface includes a first breaker projection face extending along the first side surface, a second breaker projection face extending along the second side surface, and a rake face located between the first breaker projection face and the second breaker projection face in top view. In a direction from the rear surface to the front surface, a first front end of the first breaker projection face is located ahead of a second front end of the second breaker projection face. A cutting edge has a first cutting edge portion and a second cutting edge portion. In a direction perpendicular to the reference surface, the second breaker projection face is lower than the first breaker projection face, and a boundary between the first cutting edge portion and the second cutting edge portion is lower than the second breaker projection face.Type: GrantFiled: October 30, 2017Date of Patent: February 23, 2021Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Tomoyuki Fukuyama, Junya Okida, Yosuke Shimamoto
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Publication number: 20200180038Abstract: A cutting edge includes a nose portion, a first cutting edge portion, and a second cutting edge portion. When a boundary between a first inclined portion and a first breaker portion, a boundary between a first step surface and a second breaker portion, a boundary between a second inclined portion and a third breaker portion, and a boundary between a second step surface and a fourth breaker portion are a first position, a second position, a third position, and a fourth position, respectively, the second position is higher than the first position and the fourth position is higher than the third position in a direction perpendicular to the seating surface, and a distance between the first position and the third position is greater than a distance between the second position and the fourth position in a direction parallel to the seating surface.Type: ApplicationFiled: July 26, 2017Publication date: June 11, 2020Inventors: Yosuke Shimamoto, Naoki Matsuda, Hideo Maeno, Junya Okida
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Patent number: 10632541Abstract: A rotary cutting tool insert according to one embodiment of the present invention includes: an annular rake face provided with at least one recess portion; and a cutting edge formed at an outer circumference of the rake face, the recess portion having a width of more than or equal to 1.2 mm and less than or equal to 3.0 mm in a circumferential direction of the rake face, a distance between the cutting edge and an end of the recess portion at the outer circumference side of the rake face being more than or equal to 0.1 mm and less than or equal to 0.5 mm. According to the rotary cutting tool insert according to the one embodiment of the present invention, roughness of a processed surface and vibration due to a cutting process can be prevented.Type: GrantFiled: August 23, 2016Date of Patent: April 28, 2020Assignees: Sumitomo Electric Hardmetal Corp., DMG Mori Co., Ltd.Inventors: Shinya Ikenaga, Junya Okida, Morihiro Hideta
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Publication number: 20190232378Abstract: The upper surface includes a first breaker projection face extending along the first side surface, a second breaker projection face extending along the second side surface, and a rake face located between the first breaker projection face and the second breaker projection face in top view. In a direction from the rear surface to the front surface, a first front end of the first breaker projection face is located ahead of a second front end of the second breaker projection face. A cutting edge has a first cutting edge portion and a second cutting edge portion. In a direction perpendicular to the reference surface, the second breaker projection face is lower than the first breaker projection face, and a boundary between the first cutting edge portion and the second cutting edge portion is lower than the second breaker projection face.Type: ApplicationFiled: October 30, 2017Publication date: August 1, 2019Applicants: SUMITOMO ELECTRIC HARDMETAL CORP., SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Tomoyuki Fukuyama, Junya Okida, Yosuke Shimamoto
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Patent number: 10118228Abstract: A cutting insert includes a leading cutting edge having a rake angle in the range of 20° to 35° in a central region in a width direction; and a rake face having a breaker groove formed in the central region in the width direction and land portions formed in both end regions in the width direction. The land portions have a rake angle smaller than the rake angle in the central region in the width direction. The breaker groove includes opposing side faces separated from each other by a distance that decreases with increasing distance from the leading cutting edge and four shoulder portions of the same height that are formed on the opposing side faces at positions above the land portions, two of the shoulder portions being closer to the leading cutting edge and to outer sides in the width direction than the other two shoulder portions are.Type: GrantFiled: June 20, 2014Date of Patent: November 6, 2018Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Shinya Ikenaga, Yosuke Shimamoto, Tomoyuki Fukuyama, Junya Okida, Masanobu Ueda
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Publication number: 20180304377Abstract: A rotary cutting tool insert according to one embodiment of the present invention includes: an annular rake face provided with at least one recess portion; and a cutting edge formed at an outer circumference of the rake face, the recess portion having a width of more than or equal to 1.2 mm and less than or equal to 3.0 mm in a circumferential direction of the rake face, a distance between the cutting edge and an end of the recess portion at the outer circumference side of the rake face being more than or equal to 0.1 mm and less than or equal to 0.5 mm. According to the rotary cutting tool insert according to the one embodiment of the present invention, roughness of a processed surface and vibration due to a cutting process can be prevented.Type: ApplicationFiled: August 23, 2016Publication date: October 25, 2018Inventors: Shinya Ikenaga, Junya Okida, Morihiro Hideta
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Patent number: 9776251Abstract: A cutting insert is configured to include: a first portion having a rake face, a flank face, a cutting edge, and a face facing an insert attachment portion at an end of a tool main body; and a second portion having a side surface including at least one flat plane that is parallel to a center line of a tool or inclined at a prescribed angle to the center line. The second portion extends continuously to a region surrounded by the face of the first portion. The second portion is fitted into the tool main body to position the cutting insert and to prevent the cutting insert from rotating.Type: GrantFiled: August 6, 2013Date of Patent: October 3, 2017Assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd., DMG MORI SEIKI CO., LTD.Inventors: Junya Okida, Kazuya Ishikawa, Shigenori Emoto, Daisuke Murakami, Shinya Ikenaga, Kazuo Noguchi, Suehiro Ikeda, Takayuki Hirokawa, Yoshio Ohara, Morihiro Hideta, Yohei Oda
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Publication number: 20160207115Abstract: A cutting insert includes a leading cutting edge having a rake angle in the range of 20° to 35° in a central region in a width direction; and a rake face having a breaker groove formed in the central region in the width direction and land portions formed in both end regions in the width direction. The land portions have a rake angle smaller than the rake angle in the central region in the width direction. The breaker groove includes opposing side faces separated from each other by a distance that decreases with increasing distance from the leading cutting edge and four shoulder portions of the same height that are formed on the opposing side faces at positions above the land portions, two of the shoulder portions being closer to the leading cutting edge and to outer sides in the width direction than the other two shoulder portions are.Type: ApplicationFiled: June 20, 2014Publication date: July 21, 2016Inventors: Shinya IKENAGA, Yosuke SHIMAMOTO, Tomoyuki FUKUYAMA, Junya OKIDA, Masanobu UEDA
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Publication number: 20150231702Abstract: A cutting insert is configured to include: a first portion having a rake face, a flank face, a cutting edge, and a face facing an insert attachment portion at an end of a tool main body; and a second portion having a side surface including at least one flat plane that is parallel to a center line of a tool or inclined at a prescribed angle to the center line. The second portion extends continuously to a region surrounded by the face of the first portion. The second portion is fitted into the tool main body to position the cutting insert and to prevent the cutting insert from rotating.Type: ApplicationFiled: August 6, 2013Publication date: August 20, 2015Inventors: Junya Okida, Kazuya Ishikawa, Shigenori Emoto, Daisuke Murakami, Shinya Ikenaga, Kazuo Noguchi, Suehiro Ikeda, Takayuki Hirokawa, Yoshio Ohara, Morihiro Hideta, Yohei Oda
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Patent number: 8389108Abstract: A surface-coated cutting tool of the present invention includes a substrate and a coated layer formed on the substrate, and the coated layer is a physical-vapor-deposition layer having a thickness of 10 ?m or more. A surface region having a thickness of 1 ?m from a surface of the coated layer includes a first region whose integrated residual stress is a compressive stress and a second region whose integrated residual stress is a tensile stress, and the integrated residual stress of the surface region falls within the range of ?1.5 to 1.5 GPa in any region included in the surface region.Type: GrantFiled: April 24, 2009Date of Patent: March 5, 2013Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.Inventors: Hideki Moriguchi, Makoto Setoyama, Miki Miyanaga, Junya Okida, Sachiko Koike, Daiji Tabayashi
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Publication number: 20100260561Abstract: A surface-coated cutting tool of the present invention includes a substrate and a coated layer formed on the substrate, and the coated layer is a physical-vapor-deposition layer having a thickness of 10 ?m or more. A surface region having a thickness of 1 ?m from a surface of the coated layer includes a first region whose integrated residual stress is a compressive stress and a second region whose integrated residual stress is a tensile stress, and the integrated residual stress of the surface region falls within the range of ?1.5 to 1.5 GPa in any region included in the surface region.Type: ApplicationFiled: April 24, 2009Publication date: October 14, 2010Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Hideki Moriguchi, Makoto Setoyama, Miki Miyanaga, Junya Okida, Sachiko Koike, Daiji Tabayashi
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Patent number: 7785700Abstract: A coating layer formed from an outermost layer and an inner layer disposed on a substrate surface of a surface coated cutting tool. The inner layer is formed from a periodic table group IVa, Va, VIa metal, Al, Si, B compound. The outermost layer is formed from aluminum nitride or aluminum carbonitride. The outermost layer has a chlorine content of more than 0 and no more than 0.5 atomic percent. The protective coating on the tool surface is made easier to form during cutting by further adding a predetermined amount of chlorine to the film formed from aluminum nitride, which provides thermal stability and lubricity. Lubricity can be increased by using this protective coating.Type: GrantFiled: April 13, 2005Date of Patent: August 31, 2010Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yoshio Okada, Naoya Omori, Haruyo Fukui, Junya Okida
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Patent number: D826664Type: GrantFiled: August 18, 2017Date of Patent: August 28, 2018Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Kouki Matsubara, Junya Okida, Naoki Matsuda
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Patent number: D847885Type: GrantFiled: May 16, 2016Date of Patent: May 7, 2019Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Junya Okida, Tomoyuki Fukuyama, Naoya Tsuda, Shinya Imamura
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Patent number: D861754Type: GrantFiled: April 11, 2017Date of Patent: October 1, 2019Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Tomoyuki Fukuyama, Yosuke Shimamoto, Junya Okida
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Patent number: D940766Type: GrantFiled: April 16, 2019Date of Patent: January 11, 2022Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Tomoyuki Fukuyama, Yosuke Shimamoto, Junya Okida
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Patent number: D1015393Type: GrantFiled: February 7, 2022Date of Patent: February 20, 2024Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Christoph Zeiner, Yusuke Matsuda, Junya Okida, Yuki Tsutsumi
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Patent number: D1016113Type: GrantFiled: February 9, 2022Date of Patent: February 27, 2024Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Christoph Zeiner, Yusuke Matsuda, Junya Okida, Yuki Tsutsumi