Patents by Inventor Nobuaki Minami
Nobuaki Minami 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: 9649890Abstract: A method for manufacturing a tire having a sidewall portion provided with a projecting marking is disclosed. A stencil plate for molding the projecting marking is made of a thin metallic plate whose thickness is 0.2 to 0.8 mm and mounted in a recess formed in a sidewall molding surface of the tire vulcanization mold. A concave marking part for molding the projecting marking is formed by press working upon the metallic plate. Edge portions of the stencil plate are turned back. The backward extension H2 of the turnback is substantially the same as the depth of the concave marking part.Type: GrantFiled: February 11, 2014Date of Patent: May 16, 2017Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki Sakamoto, Osamu Togawa, Hisanobu Uenosono, Hiroki Miura, Nobuaki Minami
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Publication number: 20140261947Abstract: A method for manufacturing a tire having a sidewall portion provided with a projecting marking is disclosed. A stencil plate for molding the projecting marking is made of a thin metallic plate whose thickness is 0.2 to 0.8 mm and mounted in a recess formed in a sidewall molding surface of the tire vulcanization mold. A concave marking part for molding the projecting marking is formed by press working upon the metallic plate. Edge portions of the stencil plate are turned back. The backward extension H2 of the turnback is substantially the same as the depth of the concave marking part.Type: ApplicationFiled: February 11, 2014Publication date: September 18, 2014Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masayuki SAKAMOTO, Osamu TOGAWA, Hisanobu UENOSONO, Hiroki MIURA, Nobuaki MINAMI
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Publication number: 20060231186Abstract: A bead portion of a tire has a short fiber reinforcing rubber layer extending along a side surface of a rubber bead apex from a bead core to a height position which is lower than the radially outer end of the bead apex rubber. The short fiber reinforcing rubber layer has short fibers compounded in an amount of 10 to 30 parts by weight with respect to 100 parts by weight of the rubber, and the short fibers are oriented in the tire circumferential direction.Type: ApplicationFiled: June 14, 2006Publication date: October 19, 2006Inventors: Nobuaki Minami, Tadao Matsumoto
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Patent number: 7040366Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber. The tubeless pneumatic tire is of lightened weight and exhibits anti-airleak property comparable or superior to that of conventional one even if it is provided with no inner liner.Type: GrantFiled: July 14, 2003Date of Patent: May 9, 2006Assignee: Sumitomo Rubber Industries LimitedInventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Publication number: 20040007304Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber. The tubeless pneumatic tire is of lightened weight and exhibits anti-airleak property comparable or superior to that of conventional one even if it is provided with no inner liner.Type: ApplicationFiled: July 14, 2003Publication date: January 15, 2004Applicant: Sumitomo Rubber Industries, LimitedInventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Patent number: 6615886Abstract: A vehicle tire comprises a central tread portion divided into central blocks B0 by central oblique grooves (g); a lateral tread portion divided into four kinds of blocks B1, B2, B3 and B4 by first and second oblique grooves (ga and gb) extending from a circumferential groove (G) to a tread edge, and cross oblique grooves (gc) extending between the first oblique grooves (ga1) while crossing the second oblique groove (gb); the central oblique grooves (g) and the cross oblique grooves (gc) inclined reversely to the first and second oblique grooves (ga and gb); the number of each of the first to fourth lateral blocks B1 to B4 in each of the lateral land portions being equal to the number of the central blocks B0; and each of the first oblique grooves (ga) and two of the cross oblique grooves (gc) meeting with at axially different positions (P1 and P2).Type: GrantFiled: March 13, 2001Date of Patent: September 9, 2003Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Nobuaki Minami
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Patent number: 6598646Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber.Type: GrantFiled: August 17, 2000Date of Patent: July 29, 2003Assignee: Sumitomo Rubber Industries LimitedInventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Publication number: 20030116250Abstract: A bead portion of a tire has a short fiber reinforcing rubber layer extending along a side surface of a bead apex rubber from a bead core to a height position which is lower than an radially outer end of the bead apex rubber. The short fiber reinforcing rubber layer has short fibers compounded at an amount of 10 to 30 parts by weight with respect to 100 parts by weight of the rubber, and the short fibers are oriented in the tire circumferential direction.Type: ApplicationFiled: November 8, 2002Publication date: June 26, 2003Inventors: Nobuaki Minami, Tadao Matsumoto
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Patent number: 6554034Abstract: A studless tire comprises a tread provided with a plurality of blocks and at least one rib provided with first sipes and second sipes each extending across the rib. The first sipes and second sipes are alternately arranged in the longitudinal direction of the rib at circumferential pitches Pc in a range of from 0.028 to 0.04 times a ground contacting width of the tread. Each of the first sipes and second sipes comprises a deep central part, a shallow part on one side thereof and a mid-depth part on the other side thereof, wherein the deep central part has a depth in a range of from 0.70 to 0.80 times a depth of a main longitudinal groove defining the rib, the mid-depth part has a depth being in a range of from 0.40 to 0.60 times the depth of the main longitudinal groove, and the shallow part has a depth in a range of from 0.04 to 0.35 times the depth of the main longitudinal groove.Type: GrantFiled: October 6, 2000Date of Patent: April 29, 2003Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Nobuaki Minami
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Patent number: 6527025Abstract: A pneumatic tire comprises: a carcass ply extending between bead portions and including a topping rubber layer, the topping rubber layer facing the inside of the tire and made of a butyl rubber compound containing at least 10 parts by weight of butyl rubber or butyl rubber derivative; and a belt disposed radially outside the carcass in the tread portion, the belt comprising at least one ply of monofilament cords laid at an angle of from 10 to 40 degrees with respect to the circumferential direction of the tire, and each of the monofilament cord consisting of a single filament. The belt further comprises one ply of multifilament cords or one ply of monofilament cords. The height of a bead apex, which is disposed between a carcass ply turnup portion and main portion in each bead portion, can be reduced into a range of from 10 to 20 mm, and in this case, the carcass ply turnup portion is extended radially outwardly beyond the radially outer end of the bead apex so as to adjoin the carcass ply main portion.Type: GrantFiled: September 9, 1999Date of Patent: March 4, 2003Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Nobuaki Minami
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Publication number: 20020005236Abstract: A vehicle tire comprises a central tread portion divided into central blocks B0 by central oblique grooves (g); a lateral tread portion divided into four kinds of blocks B1, B2, B3 and B4 by first and second oblique grooves (ga and gb) extending from a circumferential groove (G) to a tread edge, and cross oblique grooves (gc) extending between the first oblique grooves (ga1) while crossing the second oblique groove (gb); the central oblique grooves (g) and the cross oblique grooves (gc) inclined reversely to the first and second oblique grooves (ga and gb); the number of each of the first to fourth lateral blocks B1 to B4 in each of the lateral land portions being equal to the number of the central blocks B0; and each of the first oblique grooves (ga) and two of the cross oblique grooves (gc) meeting with at axially different positions (P1 and P2).Type: ApplicationFiled: March 13, 2001Publication date: January 17, 2002Inventor: Nobuaki Minami
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Patent number: 6148889Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber.Type: GrantFiled: February 8, 1999Date of Patent: November 21, 2000Assignee: Sumitomo Rubber Intdustries LimitedInventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Patent number: 6079463Abstract: A pneumatic radial tire comprises a breaker-belt disposed radially outside a carcass, and a band-belt disposed radially outside the breaker-belt and having organic fiber cords laid in substantially parallel with the tire equator. In the meridian section of the tire which is mounted on a standard rim and inflated to 0.5% of a standard inner pressure, the tread has a triple radius profile and the band-belt having a variable ply number accommodated to the triple radii of the tread such that the number of plies throughout more than sixty percent (60%) of the axial width of the parts of the tread having the first, second and third radii of curvature, respectively, are different from each other. The tread profile is composed of a central part of a radius R1, a pair of middle parts of a radius R2, and a pair of shoulder parts of a radius R3. For example, the ply number N1 in the central part is 0, the ply number N2 in the middle parts is 1, and the ply number N3 in the shoulder parts is 2.Type: GrantFiled: December 11, 1997Date of Patent: June 27, 2000Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Nobuaki Minami, Toshihiro Okada
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Patent number: 5971049Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber.Type: GrantFiled: July 21, 1997Date of Patent: October 26, 1999Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Patent number: 5759315Abstract: A pneumatic radial tire comprises a carcass comprising an inner and outer plies, a belt comprising at least one ply of cords laid at an angle of from 0 to 35 degrees with respect to the tire circumferential direction, and a rubber bead apex disposed in each bead portion. The outer carcass ply comprises a main portion extending continuously between the bead portions, and a pair of turnup portions each turned up around a bead core from the axially inside to outside of the tire. The inner carcass ply is disposed inside and adjacent to the main portion and extending at least from the tread portion to the bead portions. The inner carcass ply is not wrapped around the bead core, and the radially inner end thereof is located radially inward of the radial outer end of the bead apex.Type: GrantFiled: September 8, 1995Date of Patent: June 2, 1998Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Kazuya Suzuki, Nobuaki Minami
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Patent number: 5688343Abstract: A tubeless pneumatic tire is provided including a carcass having a carcass cord web and topping rubber layers covering the opposite sides of the carcass cord web, the carcass extending from a tread portion through a sidewall portion to a bead portion and turned up around a bead core outwardly from the inside of the tire in the axial direction of the tire, wherein only the inner one of the topping rubber layers which faces the inside of the tire is made of a butyl-based rubber.Type: GrantFiled: July 24, 1995Date of Patent: November 18, 1997Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Nobuaki Minami, Kazuya Suzuki, Yukio Endo
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Patent number: D451855Type: GrantFiled: July 31, 2000Date of Patent: December 11, 2001Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Nobuaki Minami
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Patent number: D491517Type: GrantFiled: August 14, 2003Date of Patent: June 15, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Tadao Matsumoto, Nobuaki Minami, Saburo Miyabe, Helmut Fehl, Christian Windisch
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Patent number: D491518Type: GrantFiled: August 14, 2003Date of Patent: June 15, 2004Assignee: The Goodyear Tire & Rubber CompanyInventors: Saburo Miyabe, Helmut Fehl, Christian Windisch, Wako Iwamura, Tadao Matsumoto, Nobuaki Minami
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Patent number: D372445Type: GrantFiled: January 21, 1994Date of Patent: August 6, 1996Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Nobuaki Minami