Patents by Inventor Ryota Ikeda
Ryota Ikeda 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: 20230083870Abstract: Provided is a 5-rib tire that can have improved steering stability and noise performance A tread portion 2 includes four circumferential grooves 3 and five land portions 4. Two tread ends are ends of a 50%-load ground-contact surface. Each of the five land portions 4 is provided with no groove having a groove width greater than 2.0 mm, and is provided with only sipes 9. The five land portions 4 include a shoulder land portion 11. The shoulder land portion 11 is provided with a plurality of shoulder sipes 20. At least one of the shoulder sipes 20 includes an inclined portion 21 and an axial portion 22. The axial portion 22 cross the tread end.Type: ApplicationFiled: September 1, 2022Publication date: March 16, 2023Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Kohei MIYOSHI, Ryota IKEDA, Yuto OHTE
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Publication number: 20230078520Abstract: A tread portion 2 includes four circumferential grooves 3 and five land portions 4. Each of the five land portions 4 is provided with no groove having a groove width greater than 2.0 mm, and is provided with only sipes 9. The four circumferential grooves 3 include a shoulder circumferential groove 5. The five land portions 4 include a shoulder land portion 11 and a middle land portion 13. The middle land portion 13 is provided with a plurality of middle sipes 30. The shoulder land portion 11 is provided with a plurality of shoulder sipes 20 each extending from the shoulder circumferential groove 5 to a position beyond a tread end. At least one of the shoulder sipes 20 includes an inclined portion 21. A maximum angle of the inclined portion 21 with respect to a tire axial direction is not greater than a maximum angle of the middle sipe 30 with respect to the tire axial direction.Type: ApplicationFiled: September 1, 2022Publication date: March 16, 2023Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Kengo FUKUDA, Ryota IKEDA, Yuto OHTE, Kohei MIYOSHI
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Publication number: 20230082581Abstract: A tire includes a tread portion including four circumferential grooves extending continuously in the tire circumferential direction and five land portions divided by the four circumferential grooves. The five land portions include a first middle land portion located between a first tread edge and a tire equator. The first middle land portion is provided with first middle sipes inclined with respect to a tire axial direction and fully traversing the first middle land portion in the tire axial direction. Each first middle sipe includes a pair of sipe edges, and at least one of the pair of sipe edges opens at the ground contact surface via a chamfer portion over an entire length thereof. The chamfer portion has a chamfer width increasing continuously from a first longitudinal edge to a second longitudinal edge of the first middle land portion.Type: ApplicationFiled: September 12, 2022Publication date: March 16, 2023Applicant: Sumitomo Rubber Industries, Ltd.Inventor: Ryota IKEDA
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Publication number: 20220396099Abstract: A tire that includes a tread portion having a designated mounting direction to a vehicle can comprise: an outer shoulder land portion having a greatest width, in the tire axial direction, of a ground contact surface among five land portions. The outer shoulder land portion can include a plurality of outer shoulder sipes connected to an outer shoulder circumferential groove. An outer middle land portion can include a plurality of outer middle sipes extending completely across the outer middle land portion in the tire axial direction. The outer shoulder sipes and the outer middle sipes each can include a pair of sipe walls. The outer shoulder sipes and the outer middle sipes can each include a body portion in which the pair of sipe walls are disposed substantially parallel to each other. A width of a body portion of each outer shoulder sipe can be greater than a width of a body portion of each outer middle sipe.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Tomohisa KURIYAMA, Ryota IKEDA, Daichi TAKATSUKI, Kohei MIYOSHI
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Publication number: 20220396100Abstract: A tread portion 2 can include an inner tread end, an outer tread end, circumferential grooves, and land portions. The circumferential grooves can include an inner shoulder circumferential groove and an outer shoulder circumferential groove. The land portions can include an inner shoulder land portion and an outer shoulder land portion. The inner shoulder land portion can include inner shoulder lateral grooves and inner shoulder sipes. The outer shoulder land portion can include outer shoulder lateral grooves and outer shoulder sipes. Each outer shoulder sipe can have a chamfered portion at each of sipe edges on both sides. The chamfered portion can have a chamfered width that increases from a terminating end side toward the outer shoulder circumferential groove.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Yuto OHTE, Ryota IKEDA
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Publication number: 20220396101Abstract: A tire having a tread portion, wherein the tread portion can include a pair of shoulder circumferential grooves, a pair of crown circumferential grooves, and a pair of middle land portions. Each middle land portion can include a plurality of middle sipes. Each middle sipe can have a chamfered portion at at least one of sipe edges on both opposite ends thereof. The chamfered portion can extend from the crown circumferential groove to the shoulder circumferential groove. A first chamfered width of the chamfered portion at a first one of the opposite ends on a crown circumferential groove side can be greater than a second chamfered width of the chamfered portion at a second one of the opposite ends on a shoulder circumferential groove side.Type: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Ryota IKEDA, Hiroaki KOGA
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Publication number: 20220339965Abstract: A tire includes a tread portion including first and second tread edges, three or more circumferential grooves, and four or more land portions. The circumferential grooves include a first shoulder circumferential groove nearest to the first tread edge. Each land portion is provided with only sipes and is not provided with lateral grooves. The land portions include a first shoulder land portion having the first tread edge, and a first middle land portion adjacent to the first shoulder land portion. The first middle land portion is provided with first middle sipes traversing the first middle land portion completely in the tire axial direction. The first shoulder land portion is provided with first shoulder sipes extending from the first shoulder circumferential groove to the first tread edge. The first shoulder sipes have a circumferential pitch length smaller than a circumferential pitch length of the first middle sipes.Type: ApplicationFiled: March 28, 2022Publication date: October 27, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Tsukasa KITATANI, Kozo YOSHIMURA, Ryota IKEDA
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Publication number: 20220324261Abstract: A tire includes a tread portion including four circumferential grooves between outboard and inboard tread edges, and five land portions divided by the circumferential grooves. The circumferential grooves include an inboard shoulder circumferential groove located nearest to the inboard tread edge in the circumferential grooves. The land portions include an inboard shoulder land portion disposed axially outward of the inboard shoulder circumferential groove and having a ground contact surface with the smallest axial width in the land portions. The inboard shoulder land portion is provided with inboard shoulder lateral grooves and inboard shoulder sipes. The inboard shoulder lateral grooves include inner ends away from the inboard shoulder circumferential groove. The inboard shoulder lateral grooves extend axially outward from the inner ends to a location beyond the inboard tread edge. The inboard shoulder sipes extends from the inboard shoulder circumferential groove to a location beyond the inboard tread edge.Type: ApplicationFiled: March 23, 2022Publication date: October 13, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Keiji HIGUCHI, Ryota IKEDA, Takashi HAGIHARA, Takuya OSAWA, Takuya FUJIMOTO
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Publication number: 20220203773Abstract: A tire for which a mounting direction to a vehicle is specified, has a tread portion axially divided into five land portions each provided with sipes. The five land portions are a first shoulder land portion, a first middle land portion, a crown land portion, a second middle land portion, and a second shoulder land portion having ground contacting surface widths W1s, W1m, Wc, W2m and W2s, respectively, which satisfy the following condition: W1s>W1m>Wc>W2m=>W2s under a 50% load state of the tire.Type: ApplicationFiled: December 23, 2021Publication date: June 30, 2022Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Takashi HAGIHARA, Ryota IKEDA, Takuya FUJIMOTO, Daichi TAKATSUKI, Masahiro TATSUTA, Kengo FUKUDA
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Publication number: 20220203774Abstract: A tire includes a tread portion including first and second tread edges, circumferential grooves, and land portions. The land portions include a crown land portion, a first middle land portion, and a second middle land portion. Under a 50% loaded condition, the first middle land portion, the crown land portion, and the second middle land portion respectively have axial widths W1m, Wc, and W2m of ground contact surfaces, the widths satisfying the following formula, W1m>Wc>W2m. The crown land portion includes an outer ground contact surface and an inner ground contact surface. The outer ground contact surface and the inner ground contact surface respectively have widths Wco and Wci in the tire axial direction, the widths satisfying the following formula, Wco>Wci.Type: ApplicationFiled: December 9, 2021Publication date: June 30, 2022Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tomohisa KURIYAMA, Ryota IKEDA, Chisato OMORI, Kohei MIYOSHI, Hiroaki KOGA
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Patent number: 10608360Abstract: A housing 10 comprises connector-side transmission-permitting portions 10A that permit the transmission of wave signals in the connector-height direction, a circuit board B comprises board-side transmission-permitting portions B1 that permit the transmission of wave signals in the connector-height direction at locations corresponding to the above-mentioned connector-side transmission-permitting portions 10A when the electrical connector 1 is mounted, and, when a counterpart connector component C is inserted all the way to a normal position, the transmission of wave signals permitted in the process of insertion of the above-mentioned counterpart connector component C becomes blocked by the above-mentioned counterpart connector component C, or alternatively, the transmission of wave signals blocked by the above-mentioned counterpart connector component C in the process of insertion of said counterpart connector component C becomes permissible at the locations of the above-mentioned connector-side transmission-pType: GrantFiled: June 18, 2019Date of Patent: March 31, 2020Assignee: HIROSE ELECTRIC CO., LTD.Inventor: Ryota Ikeda
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Publication number: 20190393635Abstract: A housing 10 comprises connector-side transmission-permitting portions 10A that permit the transmission of wave signals in the connector-height direction, a circuit board B comprises board-side transmission-permitting portions B1 that permit the transmission of wave signals in the connector-height direction at locations corresponding to the above-mentioned connector-side transmission-permitting portions 10A when the electrical connector 1 is mounted, and, when a counterpart connector component C is inserted all the way to a normal position, the transmission of wave signals permitted in the process of insertion of the above-mentioned counterpart connector component C becomes blocked by the above-mentioned counterpart connector component C, or alternatively, the transmission of wave signals blocked by the above-mentioned counterpart connector component C in the process of insertion of said counterpart connector component C becomes permissible at the locations of the above-mentioned connector-side transmission-pType: ApplicationFiled: June 18, 2019Publication date: December 26, 2019Inventor: Ryota IKEDA
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Publication number: 20190061432Abstract: A pneumatic radial tire 1 for a passenger car includes a carcass 6, a belt layer 7, and a tread portion 2. The tread portion 2 includes outer and inner shoulder land regions 16 and 17 and outer and inner middle land regions 18 and 19. The outer shoulder land region 16 is provided with a plurality of outer shoulder lateral grooves 21. The inner shoulder land region 17 is provided with a plurality of inner shoulder lateral grooves 22. Number of the inner shoulder lateral grooves 22 is larger than number of the outer shoulder lateral grooves 21. The outer and inner middle land regions 18 and 19 are provided with a plurality of middle sipes 23 each extending from an edge on a side of an inner tread edge (Ti) of the respective land region toward an outer tread edge (To) and terminating within the respective land region.Type: ApplicationFiled: August 9, 2018Publication date: February 28, 2019Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Ryota IKEDA, Hiroyuki NAKAYAMA
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Patent number: 5721378Abstract: A servo acceleration sensor comprises a pendulum assembly composed of a pendulum made up of a torque coil provided on one side of a metal plate, a free end section from which the pendulum is suspended, a base end section, and a pair of plate springs connecting the free end section and the base end section, a permanent magnet placed away from the metal plate, a pendulum assembly support frame that supports the pendulum assembly with the base end section being secured, a displacement sensor that senses the displacement of the pendulum and outputs it in the form of an electric signal, and a sensing circuit that supplies power to the torque coil on the basis of the electric signal and thereby generates magnetic force to return the pendulum to the original position and also senses acceleration, wherein the free end section and the base end section are made of synthetic resin and the free end section, the base end section, the plate springs, and the metal plate are integrated into an entity.Type: GrantFiled: October 10, 1995Date of Patent: February 24, 1998Assignee: Fujikura Ltd.Inventors: Kenji Furuichi, Ryota Ikeda, Moritaka Goto, Takayuki Imai
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Patent number: D962853Type: GrantFiled: November 18, 2020Date of Patent: September 6, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
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Patent number: D963559Type: GrantFiled: November 9, 2020Date of Patent: September 13, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
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Patent number: D963560Type: GrantFiled: November 9, 2020Date of Patent: September 13, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
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Patent number: D963561Type: GrantFiled: November 9, 2020Date of Patent: September 13, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura
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Patent number: D964261Type: GrantFiled: November 9, 2020Date of Patent: September 20, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Masahiro Tatsuta, Ryota Ikeda, Kohei Hayama, Yuta Sakakibara, Akiko Miura