Patents by Inventor Tsuneo Takano
Tsuneo Takano 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: 7959838Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: GrantFiled: March 27, 2008Date of Patent: June 14, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20100263787Abstract: A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g., a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.Type: ApplicationFiled: July 2, 2010Publication date: October 21, 2010Applicants: NIKE, INC., MITSUBISHI RAYON CO., LTD.Inventors: Hiroshi KAWAGUCHI, Michael F. KELLY, Hitoshi KODAMA, Tsuneo TAKANO
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Patent number: 7775903Abstract: A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g. a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.Type: GrantFiled: July 3, 2007Date of Patent: August 17, 2010Assignee: NIKE, Inc.Inventors: Hiroshi Kawaguchi, Michael F. Kelly, Hitoshi Kodama, Tsuneo Takano
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Patent number: 7591973Abstract: A method for producing a fiber-reinforced composite material plate by heating and pressurizing a prepreg for a molding time of 15 minutes or less, at a molding temperature of at least 120° C. and a molding pressure of at least 10 kg/cm2. The prepreg is prepared from a reinforcing fiber and an epoxy resin composition. The epoxy resin composition features: an epoxy resin; an amine compound having at least one sulfur atom in the molecule thereof and/or a reaction product of the epoxy resin and the amine compound having at least one sulfur atom in the molecule thereof; a urea compound; and a dicyandiamide. The contents of the sulfur atom and the urea compound in the epoxy resin composition are respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: GrantFiled: November 28, 2003Date of Patent: September 22, 2009Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20090202832Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: March 27, 2008Publication date: August 13, 2009Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20090123717Abstract: An FRP is produced using a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin is impregnated into the sheet-like reinforcing fiber substrate and also covers one surface of the sheet-like reinforcing fiber substrate, and the matrix resin impregnation ratio is within a range of 35% to 95%; a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin exists on both surfaces of the sheet-like reinforcing fiber substrate, and the portion inside the sheet-like reinforcing fiber substrate into which the matrix resin has not been impregnated is continuous; or a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein at least one surface exhibits a sea-and-island-type pattern comprising resin-impregnated portions (island portions) where the matType: ApplicationFiled: October 2, 2008Publication date: May 14, 2009Applicant: Mitsubishi Rayon co., Ltd.Inventors: Kazuya Goto, Kazuki Koga, Tadayoshi Saitou, Akihiro Ito, Tsuneo Takano, Kouki Wakabayashi
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Publication number: 20080187718Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: March 27, 2008Publication date: August 7, 2008Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20080185753Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: March 27, 2008Publication date: August 7, 2008Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20080185757Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: March 27, 2008Publication date: August 7, 2008Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20070287555Abstract: A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g. a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.Type: ApplicationFiled: July 3, 2007Publication date: December 13, 2007Applicants: Nike, Inc., Mitsubishi Rayon, Co., Ltd.Inventors: Hiroshi Kawaguchi, Michael Kelly, Hitoshi Kodama, Tsuneo Takano
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Patent number: 7258625Abstract: A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g., a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.Type: GrantFiled: September 8, 2004Date of Patent: August 21, 2007Assignee: Nike, Inc.Inventors: Hiroshi Kawaguchi, Michael F. Kelly, Hitoshi Kodama, Tsuneo Takano
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Publication number: 20060052185Abstract: A golf club head enables the initial velocity of a ball to be increased and enables the carry to be lengthened. In some example structures, the golf club includes a face plate formed from metal and club head body (e.g., a crown and sole) formed from fiber reinforced plastic. A weighted body is provided inside the rearmost portion of the golf club head and a low rigidity portion whose width becomes gradually narrower as it approaches the rearmost portion is provided in the crown extending from the vicinity of the face plate to the rearmost portion.Type: ApplicationFiled: September 8, 2004Publication date: March 9, 2006Applicants: Nike, Inc., Mitsubishi Rayon, Co., Ltd.Inventors: Hiroshi Kawaguchi, Michael Kelly, Hitoshi Kodama, Tsuneo Takano
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Publication number: 20060035548Abstract: An FRP is produced using a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin is impregnated into the sheet-like reinforcing fiber substrate and also covers one surface of the sheet-like reinforcing fiber substrate, and the matrix resin impregnation ratio is within a range of 35% to 95%; a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein the matrix resin exists on both surfaces of the sheet-like reinforcing fiber substrate, and the portion inside the sheet-like reinforcing fiber substrate into which the matrix resin has not been impregnated is continuous; or a prepreg comprising reinforcing fiber, a sheet-like reinforcing fiber substrate containing reinforcing fiber, and a matrix resin, wherein at least one surface exhibits a sea-and-island-type pattern comprising resin-impregnated portions (island portions) where the matType: ApplicationFiled: July 18, 2003Publication date: February 16, 2006Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Kazuya Goto, Kazuki Koga, Tadayoshi Saitou, Akihiro Ito, Tsuneo Takano, Kouki Wakabayashi
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Publication number: 20060035088Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: November 28, 2003Publication date: February 16, 2006Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakal, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Publication number: 20050253294Abstract: A method is presented for stably, highly, and efficiently producing a three-dimensional molded article of a fiber-reinforced composite material having a three-dimensional shape, uniform quality, and free from wrinkles by press molding a plurality of prepregs cut out in a predetermined shape and also to a molded article.Type: ApplicationFiled: August 20, 2003Publication date: November 17, 2005Inventors: Tsuneo Takano, Kiharu Numata, Akihiro Itou, Masato Taguchi, Junnichi Muramatsu
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Publication number: 20020117228Abstract: A fiber reinforced plastic pipe is provided to prevent it from being damaged and make full use of its practical performance when the fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, is reduced in the circumferential direction and inserted into a metal pipe. The fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, includes a fiber bundle spun and aligned in the longitudinal direction, and circumferential reinforced fiber sheet provided at least on one of the outer and inner surface layers. The circumferential reinforced fiber sheet is inserted into the metal pipe to form a power transmission shaft such as an intermediate shaft for use with a propeller shaft or a drive shaft.Type: ApplicationFiled: January 29, 2002Publication date: August 29, 2002Inventors: Tatsuo Nakajima, Arito Matsui, Takashi Nishimoto, Go Itohiya, Hajime Asai, Tsuneo Takano
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Patent number: 6409606Abstract: A power transmission shaft to be used mainly in vehicles comprises metal joint elements and a metal pipe connected to each other. A fiber reinforced plastic pipe having a large flexural modulus of elasticity is inserted into the metal pipe, thus forming a composite FRP shaft having flexural rigidity sufficient to serve as a power transmission shaft.Type: GrantFiled: July 27, 2000Date of Patent: June 25, 2002Assignees: NTN Corporation, Mitsubishi Rayon Kabushiki KaishaInventors: Tatsuo Nakajima, Hitoshi Kodama, Tsuneo Takano
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Patent number: 6354963Abstract: A hollow golf club head provides for a longer flight distance, a larger “sweet spot”, and reduced veering in the flight path than a conventional golf club head. The golf club head has a maximum weight of 200 g, a volume in the range from 300 to 900 cc and a moment of inertia of at least 4·10 −4 kg·m2. The head is made from a fiber reinforced epoxy resin which provides at least 30 kg/mm2. Suitable reinforcing fibers include carbon fiber, fiberglass, aramid fiber and polyester fiber. Suitable resin materials include epoxy resin, unsaturated polyester resin and vinyl ester resin. The reinforcing fibers in the resin are arranged such that adjacent layers of reinforcing material are oriented perpendicular to one another. The perpendicular orientation of the fibers provide shock resistance to the head. A high elasticity and high density component, such as tungsten, is dispersed in the resin to provide reduced vibrations and improved acoustics to the head when impacting a ball.Type: GrantFiled: April 12, 1999Date of Patent: March 12, 2002Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hitoshi Kodama, Hidehiro Takemoto, Takumi Ishimori, Kiharu Numata, Tsuneo Takano
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Patent number: 6287209Abstract: A propeller shaft has a metal pipe (1) with a joint element (3) joined at an end thereof. A fiber reinforced plastic layer (5) having a thickness that achieves a flexural rigidity satisfying a required natural bending frequency is formed on an outer circumference of the metal pipe (1) satisfying a static torsional strength required as a propeller shaft. The fiber reinforced plastic layer (5) has an interface strength between the reinforcing fiber and the matrix within a range of 20 to 200 MPa as measured by the microdroplet method.Type: GrantFiled: January 19, 2000Date of Patent: September 11, 2001Assignees: NTN Corporation, Mitsubishi Rayon Kabushiki KaishaInventors: Tatsuo Nakajima, Yukihiro Watanabe, Kazuhiko Yoshida, Hitoshi Kodama, Tsuneo Takano
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Patent number: 5216634Abstract: A semiconductor memory device has pairs of complementary bit lines connected to pairs of complementary data bus lines via transfer elements controlled by column lines. The bit lines are arranged so that mutually adjacent pairs of bit lines are connected to the same pair of data bus lines at a pair of common nodes. The transfer elements for each such mutually adjacent pair of bit lines are controlled by different column lines.Type: GrantFiled: January 29, 1991Date of Patent: June 1, 1993Assignee: Oki Electric Industry Co., Ltd.Inventors: Tsuneo Takano, Masaru Uesugi