Patents by Inventor Yoshihide Fukahori
Yoshihide Fukahori 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).
-
Patent number: 6130696Abstract: There are disclosed an elastic member for an ink-jet recording apparatus which member is composed of a material comprising at least one copolymer (thermoplastic elastomer) constituted of at least one polymer block containing a vinyl aromatic compound as an principal component and at least one polymer block containing a conjugated diene compound as an principal component, the material further having 1-50 parts by weight of a polyolefin resin and 1-500 parts by weight of a softening agent based on 100 parts by weight of the copolymer. The elastic member is well suited for use in an ink tank as an ink tank valve for supplying a recording head with the ink to be filled in the ink chamber, for use as a sealing member which is installed at an ink supply port and prevents the ink from leaking through the ink supply port, and further for use as a sealing member which is installed on the main body of the ink-jet recording apparatus and prevents the ink from leaking through the recording head.Type: GrantFiled: May 15, 1998Date of Patent: October 10, 2000Assignee: Bridgestone CorporationInventors: Naruhiko Mashita, Tadashi Utsunomiya, Yoshihide Fukahori
-
Patent number: 5984438Abstract: There is provided a rubber track used for an undercarriage of a vehicle, and particularly an improvement in a guide lug which protrudes from an inner peripheral surface of the rubber track. In the rubber track in which a plurality of rubber lugs are formed on an outer peripheral surface of an endless rubber elastic body and a plurality of guide lugs are formed on an inner peripheral surface of the elastic body, the guide lugs being used for transmission of driving force or prevention of detracking between the guide lugs, and track rollers, idlers or sprockets, a heat-resisting thermoplastic resin member having low friction properties, a heat-resisting thermosetting resin member having low friction properties, or a resin member having a Barcol hardness (A type) of 40 degrees or less is exposed at one or more surfaces of each of the guide lugs, the surface or surfaces contacting other member.Type: GrantFiled: April 18, 1997Date of Patent: November 16, 1999Assignee: Bridgestone CorporationInventors: Katsuhiko Tsunoda, Shingo Kato, Yoshihide Fukahori
-
Patent number: 5884440Abstract: A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are arranged to form alternating layers between an upper flange and a lower flange; and satisfies the condition that the proper vibration to the horizontal direction of the seismic isolation apparatus which is represented by f.sub.H and obtained by the equation ##EQU1## wherein K.sub.H represents a spring constant of the seismic isolation apparatus to the horizontal direction, M represents mass of a structure mounted on the seismic isolation apparatus, and f.sub.H has a value in the range of: 0.1 Hz.ltoreq.f.sub.H .ltoreq.2 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is 2 mm or less, 0.1 Hz.ltoreq.f.sub.H .ltoreq.0.8 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is equal to 100% shearing strain, and 0.9 Hz.ltoreq.f.sub.Type: GrantFiled: February 11, 1998Date of Patent: March 23, 1999Assignee: Bridgestone CorporationInventors: Takaharu Kubo, Isao Hagiwara, Yoshihide Fukahori, Iki Harada
-
Patent number: 5879767Abstract: A first air bag comprises an upper cloth and a lower cloth, the peripheries of the both cloths being connected, characterized in that the upper cloth consists of an airtight sheet obtained by weaving a composite fiber composed of a filament core and a thermoplastic polymer bonded thereto-which has a melting point lower than that of said filament core, and then fusing said thermoplastic polymer so that the surface of said upper cloth has a continuous thermoplastic polymer layer. A second air bag consists of a membranous material having a breaking extension of 100% or more. A third air bag comprises an elastomer body and a shape-retaining member partially attached to the elastomer body, said member being composed of elastic fibers or threads and high-modulus fibers.Type: GrantFiled: August 27, 1996Date of Patent: March 9, 1999Assignee: Bridgestone CorporationInventors: Yosuke Matsushima, Yasuhiro Iino, Shinichi Toyosawa, Takeshi Kimura, Yoshihide Fukahori, Akeshi Noda
-
Patent number: 5765322Abstract: A seismic isolation apparatus which has a composite multilayered member comprising a plurality of hard plates having rigidity and a plurality of soft plates having viscoelastic property which are arranged to form alternating layers between an upper flange and a lower flange; and satisfies the condition that the proper vibration to the horizontal direction of the seismic isolation apparatus which is represented by f.sub.H and obtained by the equation f.sub.H =1/2p.sqroot.K.sub.H M wherein K.sub.H represents a spring constant of the seismic isolation apparatus to the horizontal direction, M represents mass of a structure mounted on the seismic isolation apparatus, and f.sub.H has a value in the range of: 0.1 Hz.ltoreq.f.sub.H .ltoreq.2 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is 2 mm or less, 0.1 Hz.ltoreq.f.sub.H .ltoreq.0.8 Hz when the displacement of the seismic isolation apparatus in the horizontal direction is equal to 100% shearing strain, and 0.9 Hz.ltoreq.Type: GrantFiled: September 27, 1996Date of Patent: June 16, 1998Assignee: Bridgestone CorporationInventors: Takaharu Kubo, Isao Hagiwara, Yoshihide Fukahori, Iki Harada
-
Patent number: 5723214Abstract: A paper feed roll is formed of a rubber composition comprising (A) a composite material having a low molecular weight material retained in a medium material and (B) a rubber material. The low molecular weight material has a viscosity of up to 5.times.10.sup.5 centipoise at 100.degree. C. The difference in solubility parameter between the low molecular weight material and the medium material is up to 3.0. The weight ratio of the low molecular weight material to the medium material is at least 1.0. The difference in solubility parameter between the low molecular weight material and the rubber material is up to 4.0. A paper feed apparatus comprising the paper feed roll is also provided.Type: GrantFiled: May 17, 1995Date of Patent: March 3, 1998Assignee: Bridgestone CorporationInventors: Hirotaka Yamazaki, Yasushi Imai, Shinichi Toyosawa, Yoshihide Fukahori
-
Patent number: 5716997Abstract: A polymeric reticulated structure is prepared by mixing an ethylene-propylene copolymer having an ethylene content of at least 60% by weight or a thermoplastic block copolymer terminated with a crystalline ethylene block with a low molecular weight material. The low molecular weight material is trapped in the three-dimensional continuous network the copolymer forms.Type: GrantFiled: August 31, 1995Date of Patent: February 10, 1998Assignee: Bridgestone CorporationInventors: Shinichi Toyosawa, Naruhiko Mashita, Yasushi Imai, Takahiro Matsuse, Yuichiro Wakana, Yoshihide Fukahori
-
Patent number: 5618595Abstract: A first air bag comprises an upper cloth and a lower cloth, the peripheries of the both cloths being connected, characterized in that the upper cloth consists of an airtight sheet obtained by weaving a composite fiber composed of a filament core and a thermoplastic polymer bonded thereto which has a melting point lower than that of said filament core, and then fusing said thermoplastic polymer so that the surface of said upper cloth has a continuous thermoplastic polymer layer. A second air bag consists of a membranous material having a breaking extension of 100% or more. A third air bag comprises an elastomer body and a shape-retaining member partially attached to the elastomer body, said member being composed of elastic fibers or threads and high-modulus fibers.Type: GrantFiled: August 25, 1994Date of Patent: April 8, 1997Assignee: Bridgestone CorporationInventors: Yosuke Matsushima, Yasuhiro Iino, Shinichi Toyosawa, Takeshi Kimura, Yoshihide Fukahori, Akeshi Noda
-
Patent number: 5451454Abstract: A blend of high-molecular and a low-molecular organic material contains the high-molecular organic material in a proportion smaller than that of the low-molecular organic material, and has a three-dimensionally continuous network skeleton structure formed by the high-molecular organic material. The structure preferably has an average cell or mesh diameter not exceeding 500 microns. The removal of the low-molecular organic material from the blend gives a functional porous material consisting of the high-molecular organic material. The replacement of the low-molecular organic material in the blend with a solid or liquid, or a mixture thereof, gives a functional composite material containing the solid or liquid, or their mixture in the network skeleton structure.Type: GrantFiled: December 14, 1992Date of Patent: September 19, 1995Assignee: Bridgestone CorporationInventors: Yoshihide Fukahori, Naruhiko Mashita, Akihiko Ogino, Shinichi Toyosawa, Takeshi Ohba, Yasushi Imai
-
Patent number: 5405299Abstract: A toothed belt and belt-adapted pulley system provides a high-load capacity and increased durability by reducing stress concentrations on dedendum portions and further preventing localized bending of belt tensile cords. Smooth engagement of elastic teeth of a belt is possible due to minimization of interference between the elastic teeth upon engagement or disengagement with a pulley. Reduced vibration, low noise, and a reduction in skipping under high loads result from the inventive system. Each tooth of the belt has a peripheral length m.sub.0 and a dedendum portion with a length m.sub.1, where m.sub.1 /m.sub.0 is 0.1 or less. Each tooth of the pulley has a peripheral length n.sub.0 and a dedendum portion having a length n.sub.1, where n.sub.1 /n.sub.0 is 0.1 or less.Type: GrantFiled: December 17, 1993Date of Patent: April 11, 1995Assignee: Bridgestone CorporationInventors: Takaharu Kubo, Reiji Sato, Takeshi Oba, Akira Nakaegawa, Yoshihide Fukahori
-
Patent number: 5376700Abstract: A rubber composition in which highly hard particles formed with a rubber-philic coating layer by a fluidized coating treatment are dispersed in a rubber material.Type: GrantFiled: April 30, 1993Date of Patent: December 27, 1994Assignee: Bridgestone CorporationInventors: Hirotaka Yamazaki, Yasunori Fukuta, Yoshihide Fukahori
-
Patent number: 5350610Abstract: Disclosed is a damping material, which contains from 3 to 30% by weight of a thermoplastic elastomer containing at least two polymer blocks along with a bitumen and which has a dynamic loss tangent (tan .delta.) of being 0.5 or more in 10% deformation under the condition of 25.degree. C. and 1 Hz.Type: GrantFiled: December 22, 1992Date of Patent: September 27, 1994Assignee: Bridgestone CorporationInventors: Naruhiko Mashita, Akihiko Ogino, Yoshihide Fukahori
-
Patent number: 5282673Abstract: A compound resin wheel with two or more moldings integrated to form the resin wheel, wherein at least one of the two or more moldings made of a long fiber reinforced thermoplastic resin, the other molding or moldings made of metal and/or FRP.Type: GrantFiled: June 22, 1992Date of Patent: February 1, 1994Assignee: Bridgestone CorporationInventors: Haruo Koyama, Youichi Nishimuro, Kunio Machida, Yoshihide Fukahori
-
Patent number: 5277479Abstract: A resin wheel of a one piece wheel type comprising a rim and a disk molded integrally, in which a portion between an axle hole of the disk and the rim is in a form of a blind plate with no holes, and the wheel is formed by injection molding or injection compression molding of a fiber-reinforced thermoplastic resin. A resin wheel of a one piece wheel type comprising a rim and a disk molded integrally, in which a portion between an axle hole of the disk and the rim is in the form of a blind plate with no holes, excepting for bolt holes and the wheel is formed by injection molding or injection compression molding of a fiber-reinforced thermoplastic resin.Type: GrantFiled: June 10, 1992Date of Patent: January 11, 1994Assignee: Bridgestone CorporationInventors: Haruo Koyama, Youichi Nishimuro, Kunio Machida, Yoshihide Fukahori
-
Patent number: 5234259Abstract: A resin wheel consisting of two or more molded parts coupled together. The parts are molded separately and have threaded portions. Then, the threaded portion of one molded part is screwed into the threaded portion of the other molded part so that the parts are fitted and coupled together.Type: GrantFiled: June 18, 1992Date of Patent: August 10, 1993Assignee: Bridgestone CorporationInventors: Youichi Nishimuro, Haruo Koyama, Kunio Machida, Yoshihide Fukahori
-
Patent number: 5162395Abstract: A rubber composition which contains, in a matrix consisting mainly of rubber, irregularly shaped particles having high hardness, and subjected to surface treatment for improving their affinity for the matrix, or their adhesion to it.Type: GrantFiled: February 20, 1991Date of Patent: November 10, 1992Assignee: Bridgestone CorporationInventors: Hirotaka Yamazaki, Yasunori Fukuta, Yoshihide Fukahori
-
Patent number: 4978581Abstract: An anti-seismic bearing which comprises a plurality of rigid plates and viscoelastic flexible plates laminated alternately, with at least one of the flexible plates being made of a vulcanizate of a high-loss rubber compound composed of 100 parts by weight of rubber and 3 to 40 parts by weight of phenolic resin having a softening point or melting point of 150.degree. C. or below, the vulcanizate having the properties specified below.(i) The hysteresis ratio at 100% tensile deformation at 25.degree. C. is 0.2 to 0.7.(ii) the ratio E.sub.(-10) /E.sub.(30) is 1.0 to 2.5, where E.sub.(-10) is a storage modulus at -10.degree. C. and E.sub.(30) is a storage modulus at 30.degree. C., both dynamically measured at 5 Hz and 0.01% strain.Type: GrantFiled: July 22, 1988Date of Patent: December 18, 1990Assignee: Bridgestone ConstructionInventors: Yoshihide Fukahori, Hiromu Kojima, Akihiko Ogino
-
Patent number: 4933238Abstract: An anti-seismic bearing made up of a plurality of rigid plates and viscoelastic flexible plates laminated alternately, said flexible plates being made of a material characterized by that the hysteresis ratio at 100% deformation at 25.degree. C. is 0.15 to 0.60, the loss tangent (tan .delta.) at 0.01% deformation, 5 Hz, at 25.degree. C. is 0.010 to 0.194, and the ratio E(-10)/E(30) is 1.0 to 3.0, where E(-10) is a storage modulus at 0.01% deformation, 5 Hz, at -10.degree. C. and E(30) is a storage modulus at 0.01% deformation, 5 Hz, at 30.degree. C. An assembly composed of low-damping anti-seismic bearings and high-damping anti-seismic bearings arranged in parallel such that the anti-seismic bearings support the vertical load and undergo elastic deformation in the horizontal direction.Type: GrantFiled: March 1, 1989Date of Patent: June 12, 1990Assignee: Bridgestone CorporationInventors: Yoshihide Fukahori, Hiromu Kojima, Akihiko Ogino
-
Patent number: 4899323Abstract: An anti-seismic device which comprises anti-seismic rubber bearings and dampers arranged in parallel, the anti-seismic rubber bearing being formed by laminating a plurality of rigid hard plates and soft boards having a viscoelastic property one over another, the damper being composed mainly of a viscoelastic material having the physical properties (i) and (ii) defined below.(i) the hysteresis ratio (h.sub.50) is greater than 0.3 at 50% tensile deformation at 25.degree. C.(ii) the storage modulus (E) measured dynamically at a frequency of 5 Hz, a strain of 0.01%, and a temperature of 25.degree. C. is in the range of 1.ltoreq.E.ltoreq.2.times.10.sup.4 (kg/cm.sup.2).Type: GrantFiled: April 12, 1989Date of Patent: February 6, 1990Assignee: Bridgestone CorporationInventors: Yoshihide Fukahori, Hiromu Kojima, Akihiko Ogino, Shigenobu Suzuki, Toshikazu Yoshizawa
-
Patent number: 4830927Abstract: An anti-seismic bearing made up of a plurality of rigid plates and viscoelastic flexible plates laminated alternately, said flexible plates being made of a material characterized by that the hysteresis ratio at 100% deformation at 25.degree. C. is 0.15 to 0.60, the loss tangent (tan .delta.) at 0.01% deformation, 5 Hz, at 25.degree. C. is 0.010 to 0.194, and the ratio E(-10)/E(30) is 1.0 to 3.0, where E(-10) is a storage modulus at 0.01% deformation 5 Hz, at -10.degree. C. and E(30) is a storage modulus at 0.01% deformation, 5 Hz, at 30.degree. C.An assembly composed of low-damping anti-seismic bearings and high-damping anti-seismic bearings arranged in parallel such that the anti-seismic bearings support the vertical load and undergo elastic deformation in the horizontal direction.Type: GrantFiled: January 27, 1987Date of Patent: May 16, 1989Assignee: Bridgestone CorporationInventors: Yoshihide Fukahori, Hiromu Kojima, Akihiko Ogino