Patents by Inventor Hiroshi Hata
Hiroshi Hata 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: 11820173Abstract: Provided is a pneumatic tire including a pair of bead portions; at least one carcass layer extending between the pair of bead portions; a belt layer disposed outward of the carcass layer in a tire radial direction; a tread rubber disposed outward of the belt layer in the tire radial direction; a pair of sidewall rubbers disposed outward of the carcass layer in a tire lateral direction; and an electrically conductive portion extending between the pair of bead portions and having at least one separation portion, the electrically conductive portion having a linear structure, the linear structure including an electrically conductive linear member formed in a linear shape by molding an electrically conductive material with an electrical resistivity of less than 1×10{circumflex over (?)}8 ?/cm.Type: GrantFiled: April 19, 2018Date of Patent: November 21, 2023Assignee: The Yokohama Rubber Co., LTD.Inventors: Hiroshi Hata, Hidekazu Ishii
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Publication number: 20230019388Abstract: In this pneumatic tire, a tan ? value T20 of a rubber member, which constitutes at least one of a bead filler, an undertread, a sidewall rubber, and a rim cushion rubber, at 20° C. and a tan ? value T60 of the rubber member at 60° C. satisfy 0.50?T20/T60?2.00 and T20?0.22. Additionally, the tan ? value T20 of the rubber member at 20° C. is in a range T20?0.15. Additionally, a tan ? value T20_sw of the sidewall rubber at 20° C. and a tan ? value T60_sw of the sidewall rubber at 60° C. satisfy 0.50?T20_sw/T60_sw?1.50 and T20_sw?0.11.Type: ApplicationFiled: December 3, 2020Publication date: January 19, 2023Inventors: Kazunori SHIMIZU, Hiroshi HATA
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Patent number: 11318799Abstract: A pneumatic tire is provided with an electrically conductive portion at least extending continuously from a bead portion to a belt layer. The electrically conductive portion has a linear structure. The linear structure includes an electrically conductive linear member linearly formed of electrically conductive material with an electrical line resistivity of less than 1×10{circumflex over (?)}8 ?/cm. The electrically conductive portion ensures an electrically conductive path from the bead portion to the belt layer.Type: GrantFiled: December 24, 2014Date of Patent: May 3, 2022Inventors: Hiroshi Hata, Hidekazu Ishii
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Patent number: 10816080Abstract: In a vehicle power transmission device including a case housing a power transmission mechanism and a cover covering a side surface of the case in a vehicle width direction, the cover includes a stepped portion with a vehicle rear-side portion projecting outward in the vehicle width direction in a horizontal cross section, a front-side extending portion extending from the stepped portion to the vehicle front side and a plate-shaped inclined rib disposed at a corner portion between the stepped portion and the front-side extending portion, and inclined toward the front-side extending portion from a leading end portion of the stepped portion to the vehicle front side.Type: GrantFiled: October 4, 2018Date of Patent: October 27, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Marina Hirata, Seitaro Nobuyasu, Hiroshi Hata, Shigetsugu Iwata, Atsushi Kawamoto
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Publication number: 20200122510Abstract: Provided is a pneumatic tire including a pair of bead portions; at least one carcass layer extending between the pair of bead portions; a belt layer disposed outward of the carcass layer in a tire radial direction; a tread rubber disposed outward of the belt layer in the tire radial direction; a pair of sidewall rubbers disposed outward of the carcass layer in a tire lateral direction; and an electrically conductive portion extending between the pair of bead portions and having at least one separation portion, the electrically conductive portion having a linear structure, the linear structure including an electrically conductive linear member formed in a linear shape by molding an electrically conductive material with an electrical resistivity of less than 1×10{circumflex over (?)}8 ?/cm.Type: ApplicationFiled: April 19, 2018Publication date: April 23, 2020Inventors: Hiroshi Hata, Hidekazu Ishii
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Publication number: 20190107190Abstract: In a vehicle power transmission device including a case housing a power transmission mechanism and a cover covering a side surface of the case in a vehicle width direction, the cover includes a stepped portion with a vehicle rear-side portion projecting outward in the vehicle width direction in a horizontal cross section, a front-side extending portion extending from the stepped portion to the vehicle front side and a plate-shaped inclined rib disposed at a corner portion between the stepped portion and the front-side extending portion, and inclined toward the front-side extending portion from a leading end portion of the stepped portion to the vehicle front side.Type: ApplicationFiled: October 4, 2018Publication date: April 11, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Marina HIRATA, Seitaro NOBUYASU, Hiroshi HATA, Shigetsugu IWATA, Atsushi KAWAMOTO
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Patent number: 10232668Abstract: This pneumatic tire is provided with: a pair of carcass layers arranged so as to extend from the respective left and right beads of the tire across the tread; and a plurality of crossing belts arranged on the outside of the carcass layers in the radial direction of the tire. The pair of carcass layers is arranged so as to overlap each other in the tire width direction. The overlapping width (Wc) of the carcass layers is in the range of 0.5 mm?Wc?40 mm.Type: GrantFiled: May 15, 2013Date of Patent: March 19, 2019Assignee: The Yokohama Rubber Co., LTD.Inventors: Hiroshi Hata, Yoshiaki Hashimura
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Patent number: 10160264Abstract: A pneumatic tire includes a strip member which extends in a tire circumferential direction, with both ends thereof reaching each bead portion, and a belt layer disposed in a tread portion on an outer side in the tire radial direction of the strip members. The strip members are divided in the tire width direction, with each of the divided strip members having joints that join in the tire circumferential direction. The relative positions of the joints are disposed at less than 20° in the tire circumferential direction within the region of the maximum width TW in the tire width direction of the belt layer.Type: GrantFiled: September 30, 2013Date of Patent: December 25, 2018Assignee: The Yokohama Rubber Co., LTD.Inventor: Hiroshi Hata
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Publication number: 20180354314Abstract: A pneumatic tire, includes: a lug groove outermost in a lateral direction in a tread portion, the lug groove opening outward in the lateral direction; and a projection portion outward of an opening portion of the lug groove in the lateral direction, the projection portion extending outward in a radial direction past a groove bottom of the lug groove at maximum groove depth and including an end inward of a road contact surface of the tread portion in the radial direction, when the pneumatic tire is inflated to a regular internal pressure and loaded with 70% of a regular load; the projection portion including a body projecting from a tire surface, and an end projection extending from the end of the body with a step portion as an interface, and the end projection having a thinner meridian cross-sectional width than a meridian cross-sectional width of the end of the body.Type: ApplicationFiled: November 25, 2015Publication date: December 13, 2018Inventors: Hiroshi Hata, Jun Matsuda, Kee Woon Kim, Chang Jung Park
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Publication number: 20180345730Abstract: A pneumatic tire includes a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and including an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a reinforcing portion disposed at least at a base end of the projection portion, the reinforcing portion having a JIS-A rubber hardness greater than that of a rubber material around the projection portion.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Inventors: Hiroshi HATA, Jun MATSUDA, Kee Woon KIM, Chang Jung PARK
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Publication number: 20180345729Abstract: A pneumatic tire comprises a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and comprising an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a stopper portion projecting from a surface of the tread portion at a position outward of a ground contact edge in the tire lateral direction and inward of the projection portion in the tire lateral direction.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Applicants: The Yokohama Rubber Co., Ltd., Kumho Tire Co., Inc.Inventors: Hiroshi HATA, Jun MATSUDA, Kee Woon KIM, Chang Jung PARK
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Publication number: 20180345728Abstract: A pneumatic tire comprises a lug groove disposed outermost in a tire lateral direction in a tread portion, the lug groove opening outward in the tire lateral direction; a projection portion disposed outward of an opening portion of the lug groove in the tire lateral direction, the projection portion extending outward in a tire radial direction past a groove bottom of the lug groove at maximum groove depth and comprising an end disposed inward of a road contact surface of the tread portion in the tire radial direction, when the pneumatic tire is mounted on a regular rim, inflated to a regular internal pressure, and loaded with 70% of a regular load; and a reinforcing portion projecting from a surface of the projection portion.Type: ApplicationFiled: November 25, 2015Publication date: December 6, 2018Applicants: The Yokohama Rubber Co., LTD., Kumho Tire Co., Inc.Inventors: Hiroshi Hata, Jun Matsuda, Kee Woon Kim, Chang Jung Park
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Patent number: 9895934Abstract: In a pneumatic tire that includes strip members which extends in a tire circumferential direction, both ends thereof reaching each bead portion, a belt layer is disposed in a tread portion on an outer side in a tire radial direction of the strip members. The strip members are divided in the tire width direction, and the divided strip members have joints that join together in the tire circumferential direction. Relative positions of the joints are disposed deviated by not less than 20° in the tire circumferential direction within a region between an edge of a maximum width in the tire width direction of the belt layer and a maximum tire width position.Type: GrantFiled: September 30, 2013Date of Patent: February 20, 2018Assignee: The Yokohama Rubber Co., LTD.Inventors: Hiroshi Hata, Yuji Sato
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Patent number: 9887191Abstract: The re-combination center introduction region has re-combination centers introduced therein so that a density of the re-combination centers in the re-combination center introduction region is higher than a density of re-combination centers in a periphery of the re-combination center introduction region. The re-combination center introduction region continuously extends from the diode region to the peripheral region along a longitudinal direction of the diode region.Type: GrantFiled: August 3, 2015Date of Patent: February 6, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Hata, Satoru Kameyama, Shinya Iwasaki
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Patent number: 9816569Abstract: An engagement device includes: an engaged body configured to rotate in conjunction with a rotary shaft; an engaging body arranged coaxially with the engaged body and configured to engage with the engaged body by movement in an axial direction; a power source configured to provide thrust to the engaging body in the axial direction; and a hub member configured to couple the engaging body to a torque receiver which receives torque transmitted from the engaged body at a time the engaging body engages with the engaged body. The engaged body, the engaging body, and the power source are accommodated in a closed space, and the hub member is at least a part of an outer shell forming the closed space.Type: GrantFiled: March 22, 2013Date of Patent: November 14, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasumichi Funato, Hiroshi Hata
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Publication number: 20170263603Abstract: The re-combination center introduction region has re-combination centers introduced therein so that a density of the re-combination centers in the re-combination center introduction region is higher than a density of re-combination centers in a periphery of the re-combination center introduction region. The re-combination center introduction region continuously extends from the diode region to the peripheral region along a longitudinal direction of the diode region.Type: ApplicationFiled: August 3, 2015Publication date: September 14, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi HATA, Satoru KAMEYAMA, Shinya IWASAKI
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Publication number: 20170259626Abstract: A pneumatic tire is provided with an electrically conductive portion at least extending continuously from a bead portion to a belt layer. The electrically conductive portion has a linear structure. The linear structure includes an electrically conductive linear member linearly formed of electrically conductive material with an electrical resistivity of less than 1×10?8 ?/cm. The electrically conductive portion ensures an electrically conductive path from the bead portion to the belt layer.Type: ApplicationFiled: December 24, 2014Publication date: September 14, 2017Inventors: Hiroshi HATA, Hidekazu ISHII
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Patent number: 9577082Abstract: The semiconductor device includes: a plurality of interlayer insulation films, each interlayer insulation film covering a front surface of a corresponding one of the gate electrodes and protruding from the front surface of the semiconductor substrate; the first metal film covering the front surface of the semiconductor substrate and plurality of the interlayer insulation films; and the protective insulation film covering a part of the first metal film. In a cross-section traversing the plurality of trenches, the end of the protective insulation film is above one of the interlayer insulation films, and a width of the one of the interlayer insulation films that is below the end of the protective insulation film is wider than widths of other interlayer insulation films.Type: GrantFiled: June 21, 2016Date of Patent: February 21, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hidehiro Nakagawa, Hiroshi Hata
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Publication number: 20170025521Abstract: The semiconductor device includes: a plurality of interlayer insulation films, each interlayer insulation film covering a front surface of a corresponding one of the gate electrodes and protruding from the front surface of the semiconductor substrate; the first metal film covering the front surface of the semiconductor substrate and plurality of the interlayer insulation films; and the protective insulation film covering a part of the first metal film. In a cross-section traversing the plurality of trenches, the end of the protective insulation film is above one of the interlayer insulation films, and a width of the one of the interlayer insulation films that is below the end of the protective insulation film is wider than widths of other interlayer insulation films.Type: ApplicationFiled: June 21, 2016Publication date: January 26, 2017Inventors: Hidehiro Nakagawa, Hiroshi Hata
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Patent number: D803146Type: GrantFiled: October 19, 2015Date of Patent: November 21, 2017Inventors: Kee-Woon Kim, Chang-Jung Park, Michio Shimizu, Hiroshi Hata, Jun Matsuda