Patents by Inventor Tomoyuki Fukuyama
Tomoyuki Fukuyama 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).
-
Patent number: 11692464Abstract: A valve timing adjustment device includes: a housing member; a vane rotor that includes vanes and is securely coupled to a driven shaft and is rotatable relative to the housing member when the vane rotor receives a pressure of hydraulic oil introduced into hydraulic chambers; a fixing member that fixes the vane rotor to the driven shaft; and a bearing section that rotatably supports the housing member. The housing member includes a winding section that is formed at an outer peripheral surface of the housing member. A transmission member is wound around the winding section. The bearing section and the winding section at least partially overlap with each other when viewed in a direction perpendicular to an axial direction.Type: GrantFiled: August 23, 2021Date of Patent: July 4, 2023Assignee: DENSO CORPORATIONInventors: Tomoyuki Fukuyama, Tetsuro Mitsutani
-
Patent number: 11640073Abstract: Provided are eyeglasses that can be supported so as to fit each of various head shapes of wearers without any gap, are extremely excellent in preventing slippage and falling during exercise, have a good fitting feeling, and do not particularly require an adjustment operation for preventing slippage and falling. The eyeglasses include a frame, end pieces attached to both end portions of the frame, and temples attached to the back ends of the end pieces so as to be swingable in the inward and outward directions, and a temple pad protrudes from the front end of the temple. The temple pad moves inward when the temple swings outward, and the temple pad moves outward when the temple swings inward.Type: GrantFiled: August 26, 2020Date of Patent: May 2, 2023Assignee: YAMAMOTO KOGAKU CO., LTD.Inventors: Minoru Ikuta, Tomoyuki Fukuyama
-
Patent number: 11504780Abstract: The first cutting insert is attached to a first pocket. The second cutting insert is attached to a second pocket. The third cutting insert is attached to a third pocket. The first pocket has a first seat surface, a second seat surface, a third seat surface, and a first swarf discharging groove. The second pocket has a fourth seat surface, a fifth seat surface, a sixth seat surface, and a second swarf discharging groove. The third pocket has a seventh seat surface, an eighth seat surface, a ninth seat surface, and a third swarf discharging groove. In a cross section perpendicular to an axis, an angle formed between a straight line along the sixth seat surface and a tangent of the second swarf discharging groove at a boundary between the outer circumferential surface and the second swarf discharging groove is more than 90°.Type: GrantFiled: September 4, 2019Date of Patent: November 22, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Tangwei Zhao, Tomoyuki Fukuyama
-
Patent number: 11446742Abstract: When seen in a direction perpendicular to a seating surface, the second boundary line has a first portion and a second portion, the first portion having an inclination relative to the second cutting edge portion in a counter clockwise direction, the first portion being located between the first boundary line and an intersection between the second boundary line and a straight line passing through a center of a mounting hole and perpendicular to the second cutting edge portion, the second portion being located opposite to the first portion relative to the intersection, the second portion having an inclination relative to the second cutting edge portion in a clockwise direction.Type: GrantFiled: March 26, 2019Date of Patent: September 20, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Yuma Kawakami, Tomoyuki Fukuyama, Shinya Ikenaga
-
Publication number: 20220168825Abstract: A cutting insert of the present disclosure includes a top surface, a bottom surface, a side surface, and a corner cutting edge, a first cutting edge, a second cutting edge and a third cutting edge formed at a ridge line formed by the side surface and the top surface. The corner cutting edge has a first end and a second end. The first cutting edge extends from the first end in a first direction. The second cutting edge extends from the second end in a second direction. The third cutting edge extends from the second cutting edge in a third direction. The top surface has a first rake face adjacent to the first cutting edge, a second rake face adjacent to the second cutting edge, and a third rake face adjacent to the third cutting edge.Type: ApplicationFiled: March 13, 2020Publication date: June 2, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Kouki MATSUBARA, Shota TAKEMURA, Tomoyuki FUKUYAMA, Shota TSUJIMOTO, Naoki MATSUDA
-
Publication number: 20220168820Abstract: A cutting insert is mountable on a body. The cutting insert includes: a top surface; a bottom surface opposite to the top surface; a side surface contiguous to the top surface and the bottom surface; and a cutting edge formed at a ridgeline between the top surface and the side surface. The side surface has a first surface disposed adjacent to the cutting edge and a second surface contiguous to the first surface. When viewed in a cross sectional view parallel to the bottom surface, the second surface has a first position and a second position that are brought into abutment with the body when mounted on the body. Between the first position and the second position, an imaginary straight line extending through the first position and the second position is separated from the second surface.Type: ApplicationFiled: March 24, 2020Publication date: June 2, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Kouki MATSUBARA, Tomoyuki FUKUYAMA, Shota TAKEMURA, Shota TSUJIMOTO, Naoki MATSUDA
-
Publication number: 20220161334Abstract: A ridgeline between the top surface and the side surface includes: a nose cutting edge portion having a curved line shape, the nose cutting edge portion having a first end and a second end opposite to the first end; a major cutting edge portion contiguous to the first end; and a wiper cutting edge portion contiguous to the second end. The top surface includes: a first rake face contiguous to the wiper cutting edge portion; a second rake face contiguous to the major cutting edge portion; and a third rake face contiguous to the nose cutting edge portion and contiguous to each of the first rake face and the second rake face. A boundary line between the second rake face and the third rake face is separated from the first end and is contiguous to the major cutting edge portion.Type: ApplicationFiled: March 24, 2020Publication date: May 26, 2022Applicant: Sumitomo Electric Hardmetal Corp.Inventors: Kouki MATSUBARA, Tomoyuki FUKUYAMA, Shota TAKEMURA, Shota TSUJIMOTO, Naoki MATSUDA
-
Publication number: 20220152713Abstract: The first seating surface is contiguous to each of the front end surface and the outer circumferential surface. The second seating surface is contiguous to the front end surface. The cutting tool body is provided with a recess contiguous to each of the first seating surface, the second seating surface, and the front end surface. When the front end surface is viewed in a direction from the front end surface toward the rear end surface, a length of the recess in a direction perpendicular to a straight line parallel to the central axis and extending along the first seating surface is equal to or longer than three times as long as a length of the recess in a direction perpendicular to the first seating surface and passing through a contact point of the second seating surface, the recess, and the front end surface.Type: ApplicationFiled: March 25, 2020Publication date: May 19, 2022Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Kouki MATSUBARA, Tomoyuki FUKUYAMA, Shota TAKEMURA, Shota TSUJIMOTO, Naoki MATSUDA
-
Publication number: 20210381402Abstract: A valve timing adjustment device includes: a housing member; a vane rotor that includes vanes and is securely coupled to a driven shaft and is rotatable relative to the housing member when the vane rotor receives a pressure of hydraulic oil introduced into hydraulic chambers; a fixing member that fixes the vane rotor to the driven shaft; and a bearing section that rotatably supports the housing member. The housing member includes a winding section that is formed at an outer peripheral surface of the housing member. A transmission member is wound around the winding section. The bearing section and the winding section at least partially overlap with each other when viewed in a direction perpendicular to an axial direction.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: Tomoyuki FUKUYAMA, Tetsuro MITSUTANI
-
Patent number: 11193398Abstract: A friction member is clamped between a driven shaft of an internal combustion engine and a vane rotor and includes an oil passage hole. The oil passage hole communicates between a first oil passage of the driven shaft a second oil passage of the vane rotor. Each of positioning arrangements includes a primary engaging portion of the vane rotor and a secondary engaging portion of the friction member. The positioning arrangements are configured to limit relative rotation between the vane rotor and the friction member in a communicating state where the first oil passage and the second oil passage are communicated with each other through the oil passage hole.Type: GrantFiled: May 17, 2019Date of Patent: December 7, 2021Assignee: DENSO CORPORATIONInventors: Yasuhiro Hamaoka, Tomoyuki Fukuyama
-
Patent number: 11110526Abstract: A cutting insert according to the present disclosure includes a first surface, a second surface, a side surface, and a cutting edge. The first surface has a rake face continuous to the cutting edge. The cutting edge has a corner cutting edge, a flat cutting edge, and a main cutting edge. The rake face has a first rake face portion, a second rake face portion, and a third rake face portion, the first rake face portion being continuous to the flat cutting edge, the second rake face portion being continuous to the main cutting edge, the third rake face portion being continuous to the corner cutting edge and being located between the first rake face portion and the second rake face portion. The rake face is provided with a level difference portion.Type: GrantFiled: November 30, 2017Date of Patent: September 7, 2021Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yusuke Koike, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami, Yuta Morisaki
-
Publication number: 20210237166Abstract: When seen in a direction perpendicular to a seating surface, the second boundary line has a first portion and a second portion, the first portion having an inclination relative to the second cutting edge portion in a counter clockwise direction, the first portion being located between the first boundary line and an intersection between the second boundary line and a straight line passing through a center of a mounting hole and perpendicular to the second cutting edge portion, the second portion being located opposite to the first portion relative to the intersection, the second portion having an inclination relative to the second cutting edge portion in a clockwise direction.Type: ApplicationFiled: March 26, 2019Publication date: August 5, 2021Inventors: Yuma KAWAKAMI, Tomoyuki FUKUYAMA, Shinya IKENAGA
-
Patent number: 11065693Abstract: A cutting tool shim is to be disposed between a cutting insert and a holder and to be fixed to the holder. The ridgeline between the flank face and the rake face forms a cutting edge. The cutting edge includes an arc-shaped portion. A coolant supply path for jetting coolant to the arc-shaped portion is provided in the cutting tool shim, the coolant being supplied from the holder. The coolant supply path includes a lead-in port for leading the coolant from the holder to the coolant supply path, and a jetting port for arc-shaped portion for jetting the coolant to the arc-shaped portion. The jetting port for arc-shaped portion has a curved shape along the arc-shaped portion. The distance between the jetting port for arc-shaped portion and the arc-shaped portion is not less than 2.2 mm and not more than 8.1 mm.Type: GrantFiled: July 31, 2017Date of Patent: July 20, 2021Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Tsutomu Hirano, Satoru Kukino, Tomoyuki Fukuyama, Takuma Kishimoto
-
Publication number: 20210072558Abstract: Provided are eyeglasses that can be supported so as to fit each of various head shapes of wearers without any gap, are extremely excellent in preventing slippage and falling during exercise, have a good fitting feeling, and do not particularly require an adjustment operation for preventing slippage and falling. The eyeglasses include a frame, end pieces attached to both end portions of the frame, and temples attached to the back ends of the end pieces so as to be swingable in the inward and outward directions, and a temple pad protrudes from the front end of the temple. The temple pad moves inward when the temple swings outward, and the temple pad moves outward when the temple swings inward.Type: ApplicationFiled: August 26, 2020Publication date: March 11, 2021Applicant: YAMAMOTO KOGAKU CO., LTD.Inventors: Minoru IKUTA, Tomoyuki FUKUYAMA
-
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
-
Patent number: 10875106Abstract: The cutting edge has: a corner cutting edge; a flat cutting edge continuous to a first end portion of the corner cutting edge; and a main cutting edge continuous to a second end portion of the corner cutting edge opposite to the first end portion of the corner cutting edge. The rake face has: a first rising surface portion; and a first rake face portion continuous to the first rising surface portion and located opposite to the corner cutting edge when viewed from the first rising surface portion. When viewed in a direction perpendicular to the reference surface, the first boundary includes a first line segment extending, from one of the flat cutting edge and the corner cutting edge, in a direction crossing a straight line extending along the main cutting edge.Type: GrantFiled: January 16, 2018Date of Patent: December 29, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Shota Tsujimoto, Yusuke Koike, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
-
Patent number: 10875105Abstract: A cutting edge has a corner cutting edge, a flat drag, and a main cutting edge. The rake surface has a first rake surface portion, a second rake surface portion, and a third rake surface portion. The first rake surface portion has a first inclined surface inclined at a first angle. The second rake surface portion has a second inclined surface inclined at a second angle greater than the first angle. The first end portion and the second end portion are higher than the reference surface in a direction perpendicular to the reference surface, and the main cutting edge extends so as to intersect the reference surface when viewed in a direction parallel to the reference surface. A first step portion rising from the third rake surface portion and continuous with the first rake surface portion is provided on the rake surface.Type: GrantFiled: December 27, 2016Date of Patent: December 29, 2020Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Yusuke Koike, Yuta Morisaki, Yasuyuki Kanada, Atsuhiko Maeta, Tomoyuki Fukuyama, Yoshinari Nagami
-
Patent number: 10814401Abstract: A vibration cutting insert includes a top surface having a rake face and a breaker face, a first side surface, a second side surface, and a bottom surface. In a cross section which includes a bisector of an angle formed between a first ridgeline and a second ridgeline when viewed in a direction from the top surface toward the bottom surface, and which is parallel to the direction from the top surface toward the bottom surface, a rake angle formed between the rake face and a plane parallel to the bottom surface has a positive angle. The angle formed between the first ridgeline and the second ridgeline is an acute angle. The rake face constitutes a cylindrical surface. The breaker face constitutes a flat surface.Type: GrantFiled: May 17, 2017Date of Patent: October 27, 2020Assignees: Sumitomo Electric Hardmetal Corp., Citizen Machinery Co., Ltd., Citizen Watch Co., Ltd.Inventors: Tomoyuki Fukuyama, Kazuhiko Sannomiya
-
Patent number: D940766Type: GrantFiled: April 16, 2019Date of Patent: January 11, 2022Assignee: Sumitomo Electric Hardmetal Corp.Inventors: Tomoyuki Fukuyama, Yosuke Shimamoto, Junya Okida
-
Patent number: D954116Type: GrantFiled: December 23, 2020Date of Patent: June 7, 2022Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.Inventors: Shota Tsujimoto, Kouki Matsubara, Katsuya Nakakihara, Naoki Matsuda, Tomoyuki Fukuyama