Patents by Inventor Sayaka Mishima
Sayaka Mishima 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: 10611194Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being depressed inward in a tread width direction and extending in a tire circumferential direction. In a cross section along the tread width direction of the tire and the tire radial direction, a rim-side outer surface formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction, is formed along a first arc curve having a center of a curvature radius on the inside in the tread width direction. In the cross section, a sidewall surface formed in an area from the inner end of the circumferential recess in the tire radial direction to a bottom surface of the circumferential recess is formed along a second arc curve having a center of a curvature radius on the outside in the tread width direction.Type: GrantFiled: January 25, 2013Date of Patent: April 7, 2020Assignee: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima
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Publication number: 20180304695Abstract: In a tire in which a groove extending a tire circumferential direction is formed in a tread part, a projection extending in a direction intersecting the tire circumferential direction is provided at a groove bottom of the groove, the projection includes: a first projection part extending from one groove wall forming the groove toward the other groove wall forming the groove, and terminating short of the other groove wall; and a second projection part extending from the other groove wall toward the one groove wall, and terminating short of the one groove wall, and a terminal part of the first projection part is arranged closer to the other groove wall than a terminal part of the second projection part.Type: ApplicationFiled: March 28, 2016Publication date: October 25, 2018Applicant: BRIDGESTONE CORPORATIONInventor: Sayaka MISHIMA
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Patent number: 9956826Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being recessed inward in a tread width direction and extending in a tire circumferential direction. A block protruding outward in the tread width direction is formed on the inside of the circumferential recess. In a cross section along the tread width direction of the tire and the tire radial direction, a rim outer surface is formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction. At least a part of the block protrudes further to the outside in the tread width direction than a virtual line along which the rim outer surface extends.Type: GrantFiled: January 25, 2013Date of Patent: May 1, 2018Assignee: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima
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Publication number: 20180072106Abstract: In a tire in which a groove extending in a tire circumferential direction is formed in a tread part, a projection extending in a direction intersecting the tire circumferential direction is provided at a groove bottom of the groove, and the projection includes in a tread surface view of the tire: a rectilinear part extending linearly; and at least one curved part continuing to the rectilinear part and curving in the tire circumferential direction.Type: ApplicationFiled: March 28, 2016Publication date: March 15, 2018Applicant: BRIDGESTONE CORPORATIONInventor: Sayaka MISHIMA
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Patent number: 9272584Abstract: The disclosed pneumatic tire (1) comprises a stiffener (31) and a rubber pad (32) which, disposed between a toroidal carcass body (21) and a folded-back carcass portion (22) folded back at a bead core (11), are arranged so as to be oriented radially outwards of the tire from the bead core (11). Further, from the rim baseline (BL), the height KSH to the end (31A) of the stiffener (31), the height OWH to the maximum carcass width (20W), and the height FH to the end (101A) of the rim flange (101) fulfill 0.2?[(KSH?FH)/(OWH?FH)]?0.28.Type: GrantFiled: September 16, 2011Date of Patent: March 1, 2016Assignee: BRIDGESTONE CORPORATIONInventors: Kenji Toyoda, Sayaka Mishima
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Patent number: 9045008Abstract: Circumferential recesses have: first blocks protruding outward in the tire tread width direction, the first blocks having radial outer end sections and radial inner front end sections; and second blocks protruding outward in the tire tread width direction, the second blocks having radial inner end sections and radial outer front end sections. The radial inner front end sections of the first blocks and the radial outer front end sections of the second blocks are separated from each other in the tire circumferential direction or in the tire radial direction.Type: GrantFiled: August 5, 2011Date of Patent: June 2, 2015Assignee: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima
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Publication number: 20150013868Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being depressed inward in a tread width direction and extending in a tire circumferential direction. In a cross section along the tread width direction of the tire and the tire radial direction, a rim-side outer surface formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction, is formed along a first arc curve having a center of a curvature radius on the inside in the tread width direction. In the cross section, a sidewall surface formed in an area from the inner end of the circumferential recess in the tire radial direction to a bottom surface of the circumferential recess is formed along a second arc curve having a center of a curvature radius on the outside in the tread width direction.Type: ApplicationFiled: January 25, 2013Publication date: January 15, 2015Applicant: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima
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Publication number: 20150000814Abstract: A circumferential recess is formed on the outer surface of a tire side section, the circumferential recess being recessed inward in a tread width direction and extending in a tire circumferential direction. A block protruding outward in the tread width direction is formed on the inside of the circumferential recess. In a cross section along the tread width direction of the tire and the tire radial direction, a rim outer surface is formed in an area from a rim separation point, which is the outermost point in the tire radial direction that is in contact with a rim flange, to an inner end of the circumferential recess in the tire radial direction. At least a part of the block protrudes further to the outside in the tread width direction than a virtual line along which the rim outer surface extends.Type: ApplicationFiled: January 25, 2013Publication date: January 1, 2015Applicant: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima
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Publication number: 20130174956Abstract: The disclosed pneumatic tire (1) comprises a stiffener (31) and a rubber pad (32) which, disposed between a toroidal carcass body (21) and a folded-back carcass portion (22) folded back at a bead core (11), are arranged so as to be oriented radially outwards of the tire from the bead core (11). Further, from the rim baseline (BL), the height KSH to the end (31A) of the stiffener (31), the height OWH to the maximum carcass width (20W), and the height FH to the end (101A) of the rim flange (101) fulfill 0.2?[(KSH?FH)/(OWH?FH)]?0.28.Type: ApplicationFiled: September 16, 2011Publication date: July 11, 2013Applicant: BRIDGESTONE CORPORATIONInventors: Kenji Toyoda, Sayaka Mishima
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Publication number: 20130168002Abstract: Circumferential recesses have: first blocks protruding outward in the tire tread width direction, the first blocks having radial outer end sections and radial inner front end sections; and second blocks protruding outward in the tire tread width direction, the second blocks having radial inner end sections and radial outer front end sections. The radial inner front end sections of the first blocks and the radial outer front end sections of the second blocks are separated from each other in the tire circumferential direction or in the tire radial direction.Type: ApplicationFiled: August 5, 2011Publication date: July 4, 2013Applicant: BRIDGESTONE CORPORATIONInventor: Sayaka Mishima