Patents Assigned to Nippon Rubber Co., Ltd.
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Patent number: 4894932Abstract: An air-permeable shoe including a shoe constructed of an open-cell rubber foam. A base cloth is attached to the sole or insert therein. The sole of the shoe is exposed on a side surface of the sole of the shoe wherein a top side surface of the sole is in communication with the inside of the shoe and the ambient atmosphere. The open-cell rubber foam may be a rubber latex foam having a microstructure with a compression permanent set of less than 20%.Type: GrantFiled: February 4, 1988Date of Patent: January 23, 1990Assignee: Nippon Rubber Co., Ltd.Inventors: Masasuke Harada, Yutaka Kumagawa, Yoshiharu Moronaga
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Patent number: 4890397Abstract: A shoe for use in sports involving running and comprising an outer ground engaging sole, an inner foot engaging sole and a midsole therebetween, the midsole having therein, at least at the outer portion of the heel, a shock absorbing member comprising a shock absorbing synthetic resin foam layer bonded at its upper and lower surfaces to hard plates.Type: GrantFiled: June 28, 1985Date of Patent: January 2, 1990Assignee: Nippon Rubber Co., Ltd.Inventors: Masasuke Harada, Hiroshi Kumagawa, Junji Izumi
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Patent number: 4858339Abstract: A composite rubber sheet material and a sport shoe including a composite rubber sheet material includes a sponge rubber sheet and a mesh cloth having a percentage of voids in the range of 15 to 75%. The mesh cloth is inset in one side surface of the sponge rubber sheet to a depth ranging from 5 to 75% of the thickness of the mesh cloth for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.Type: GrantFiled: January 7, 1988Date of Patent: August 22, 1989Assignee: Nippon Rubber Co., Ltd.Inventors: Hideki Hayafuchi, Yoshiharu Moronaga, Kiyotaka Nakano
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Patent number: 4689900Abstract: An antistatic shoe including a sole having an insole and two soft antistatic projections corresponding to a medial plantar middle point and a medial calcanean point of the sole of an individual's foot. The projections are formed on the antistatic sole so as to be integrally therewith and project upwards through an insole. A charged static electricity accumulated on an individual's body and clothes is grounded to be effectively discharged through the two portions of the sole of the individual's foot. In addition, in the course of the foregoing grounding, the two portions are stimulated electrically by the electrostatic current to improve the circulation of the blood for promoting the health and development of the wearer.Type: GrantFiled: September 17, 1984Date of Patent: September 1, 1987Assignee: Nippon Rubber Co. Ltd.Inventor: Tokujiro Ishibashi
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Patent number: 4661547Abstract: An antistatic material containing a base material which is rubber and/or polyvinyl cloride resin, to which are added a cationic quaternary ammonium salt and polyethylene glycol, and optionally aluminum hydroxide or calcium carbonate. The antistatic material has a low electric resistance and excellent thermal stability, and can be colored in any color.Type: GrantFiled: November 8, 1985Date of Patent: April 28, 1987Assignee: Nippon Rubber Co., Ltd.Inventors: Masasuke Harada, Kouji Tsukamoto, Tomohiro Etou
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Patent number: 4633598Abstract: An insole for use in athletic shoes comprises an upper layer, a lower layer laminated on the upper layer, and a shock-absorptive foamed material layer laminated on the underside of the lower layer at least at the heel portion. The upper layer has a hardness of 30.degree.-50.degree., and the lower layer has a hardness of 50.degree.-70.degree.. The shock-absorptive foamed material layer has a hardness of 50.degree.-80.degree..Type: GrantFiled: September 14, 1984Date of Patent: January 6, 1987Assignee: Nippon Rubber Co., Ltd.Inventors: Yoshiharu Moronaga, Junji Izumi
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Patent number: 4625435Abstract: A sports shoe having a heel counter with a heel reinforcement wall shaped to include an inner surface which is in conformity with an outer surface of a heel portion of an upper of the sports shoe. An attaching portion is formed to project inwards from a lower end portion of the heel reinforcement wall. A flange portion formed to project outwards from the lower end portion of the heel reinforcement wall is provided in such a manner that the inner surface of the heel reinforcement wall is adhered to the outer surface of the heel portion of the upper. The attaching portion thereof is interposed between and adhered to an inwardly bent portion of the upper portion and a shoe sole. The flange portion thereof is adhered to an upper surface of an outer peripheral edge portion of the shoe sole. In this manner, the heel portion is prevented from rolling during running and the heel counter is prevented from peeling off.Type: GrantFiled: August 31, 1984Date of Patent: December 2, 1986Assignee: Nippon Rubber Co., Ltd.Inventor: Noboru Ueda
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Patent number: 4547979Abstract: An athletic shoe sole constructed to provide good cushioning and durability and to preclude overpronation of the foot. An outersole body progressively increases in thickness toward the inside edge of the sole from a longitudinal midline axis of thereof in a region extending from a heel portion to an arch portion of the outersole body, and is provided with a plurality of projection harder than the outersole body secured to its lower surface on an inner side of a heel portion of the outersole body and a plurality of projections softer than the outersole body secured to its lower surface on the remaining region of the outersole body. A cushioning midsole has a shape in section complementary to the thickness of the outersole body is overlaid on it.Type: GrantFiled: June 19, 1984Date of Patent: October 22, 1985Assignee: Nippon Rubber Co., Ltd.Inventors: Masasuke Harada, Yoshiharu Moronaga
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Patent number: D278093Type: GrantFiled: July 19, 1982Date of Patent: March 26, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Noboru Ueda
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Patent number: D279620Type: GrantFiled: February 7, 1983Date of Patent: July 16, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Noboru Ueda
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Patent number: D281542Type: GrantFiled: December 30, 1983Date of Patent: December 3, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Toshio Iwakata
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Patent number: D281543Type: GrantFiled: July 18, 1983Date of Patent: December 3, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Yoshinori Nagano
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Patent number: D281641Type: GrantFiled: July 18, 1983Date of Patent: December 10, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Junichiro Shiki
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Patent number: D281642Type: GrantFiled: July 18, 1983Date of Patent: December 10, 1985Assignee: Nippon Rubber Co., Ltd.Inventor: Shosiro Fuzita
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Patent number: D284039Type: GrantFiled: February 21, 1984Date of Patent: June 3, 1986Assignee: Nippon Rubber Co., Ltd.Inventor: Rinichi Yoshitake
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Patent number: D284040Type: GrantFiled: April 2, 1984Date of Patent: June 3, 1986Assignee: Nippon Rubber Co., Ltd.Inventor: Rinichi Yoshitake
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Patent number: D284041Type: GrantFiled: April 20, 1984Date of Patent: June 3, 1986Assignee: Nippon Rubber Co., Ltd.Inventor: Rinichi Yoshitake
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Patent number: D303317Type: GrantFiled: April 29, 1987Date of Patent: September 12, 1989Assignee: Nippon Rubber Co., Ltd.Inventor: Kiyotaka Nakano
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Patent number: D304259Type: GrantFiled: February 10, 1987Date of Patent: October 31, 1989Assignee: Nippon Rubber Co., Ltd.Inventor: Kiyotaka Nakano
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Patent number: D304390Type: GrantFiled: February 10, 1987Date of Patent: November 7, 1989Assignee: Nippon Rubber Co., Ltd.Inventor: Kiyotaka Nakano