Patents by Inventor Soichi Ishibashi
Soichi Ishibashi 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: 9238336Abstract: A process for producing a sheet-shaped prepreg includes: a fiber bundle introduction step in which tape-shaped reinforcing fiber bundles are disposed in a multilayer arrangement in the thickness direction and introduced into a die to which a molten thermoplastic resin has been supplied; a fiber bundle thickness reduction step in which each of the tape-shaped reinforcing fiber bundles is widened by means of spreading to reduce the thickness; a resin impregnation step in which the tape-shaped reinforcing fiber bundles are impregnated with the molten resin in the die; and a lamination step in which the plurality of resin-impregnated tape-shaped reinforcing fiber bundles are laminated in the die.Type: GrantFiled: June 29, 2011Date of Patent: January 19, 2016Assignee: Toray Industries, Inc.Inventors: Soichi Ishibashi, Kazuaki Funada, Shinya Takeuchi, Tamotsu Suzuki, Rinako Eto, Masayoshi Morihara, Takeru Sasaki, Eisuke Wadahara, Yasumoto Noguchi
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Publication number: 20140127521Abstract: A method of producing a composite molded body including joining a pre-molded preform (a) and a preform (b) with a fiber-reinforced thermoplastic resin by (1) providing reinforcing fibers having a weight average fiber length of 1 mm or more in at least one of the preforms (a) and (b), (2) using a thermoplastic resin (A) for the preform (a) and using the thermoplastic resin (A) or a thermoplastic resin (B) for the preform (b), (3) forming a thin film of a thermoplastic resin (C) on a surface of either the preform (a) or (b), or on surfaces of preforms (a) and (b), and (4) melting the thermoplastic resin (C) and a part of the preforms (a) and (b) by heating such that the thin film is placed at a boundary surface of a joint, and molding the composite molded body by the joint due to the melting.Type: ApplicationFiled: February 23, 2012Publication date: May 8, 2014Applicant: Toray Industries, Inc.Inventors: Soichi Ishibashi, Masayuki Koshi
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Publication number: 20130106014Abstract: A process for producing a sheet-shaped prepreg includes: a fiber bundle introduction step in which tape-shaped reinforcing fiber bundles are disposed in a multilayer arrangement in the thickness direction and introduced into a die to which a molten thermoplastic resin has been supplied; a fiber bundle thickness reduction step in which each of the tape-shaped reinforcing fiber bundles is widened by means of spreading to reduce the thickness; a resin impregnation step in which the tape-shaped reinforcing fiber bundles are impregnated with the molten resin in the die; and a lamination step in which the plurality of resin-impregnated tape-shaped reinforcing fiber bundles are laminated in the die.Type: ApplicationFiled: June 29, 2011Publication date: May 2, 2013Applicant: TORAY INDUSTRIES, INC.Inventors: Soichi Ishibashi, Kazuaki Funada, Shinya Takeuchi, Tamotsu Suzuki, Rinako Eto, Masayoshi Morihara, Takeru Sasaki, Eisuke Wadahara, Yasumoto Noguchi
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Patent number: 7344667Abstract: This invention provides a prepreg excellent in productivity, having the drapability to allow easy shaping according to a mold, excellent in resin impregnation, and excellent in handling convenience. This invention also provides a molded article with excellent mechanical properties obtained by molding the prepreg. The prepreg of this invention is a prepreg including reinforcing fibers and a thermoplastic resin, characterized in that an air-permeable layer (B) composed of the thermoplastic resin is laminated on a continuous reinforcing fiber bundle (A), and that the reinforcing fiber bundle (A) and the layer (B) composed of the thermoplastic resin are bonded at their interface.Type: GrantFiled: April 21, 2003Date of Patent: March 18, 2008Assignee: TORAY Industries, Inc.Inventors: Masato Honma, Yasunori Nagashima, Soichi Ishibashi, Yuji Kojima, Atsuki Tsuchiya
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Patent number: 6998434Abstract: The present invention relates to carbon fiber reinforced resin compositions comprising the following essential components (A), (B) and (C), and to molding compounds and molded products made by processing and molding the carbon fiber reinforced resin composition; Component (A): 0.01 to 0.7% by weight of vapor grown carbon fiber and/or nanotubes based on 100% by weight of the carbon fiber reinforced resin composition, of which the average diameter of single fiber ranges from 1 to 45 nm; Component (B): 6 to 40% by weight of carbon fiber based on 100% by weight of the carbon fiber reinforced resin composition, of which the average diameter of single fiber ranges from 1 to 20 ?m; and Component (C): resin. The present invention provides carbon fiber reinforced resin composition, molding compounds and molded products therefrom, having good conductivity, mechanical properties and moldability by the above constitution.Type: GrantFiled: February 1, 2002Date of Patent: February 14, 2006Assignee: Toray Industries, Inc.Inventors: Eisuke Wadahara, Masato Honma, Soichi Ishibashi, Yasunori Nagashima, Yuji Kojima
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Patent number: 6828374Abstract: A molding material comprises at least the following components A, B and C, with the component C arranged to contact a composite comprising the components A plus B. The components are elongated members identified as: A A continuous reinforcing fiber bundle, B A thermoplastic polymer or oligomer having a weight average molecular weight of 200 to 50,000 and a melt viscosity lower than that of the component C, and C A thermoplastic resin having a weight average molecular weight of 10,000 or more.Type: GrantFiled: September 18, 2001Date of Patent: December 7, 2004Assignee: Toray Industries, Inc.Inventors: Soichi Ishibashi, Tetsuyuki Kyono
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Publication number: 20040077771Abstract: The present invention relates to carbon fiber reinforced resin compositions comprising the following essential components (A), (B) and (C), and to molding compounds and molded products made by processing and molding the carbon fiber reinforced resin composition; Component (A): 0.01 to 0.7% by weight of vapor grown carbon fiber and/or nanotubes based on 100% by weight of the carbon fiber reinforced resin composition, of which the average diameter of single fiber ranges from 1 to 45 nm; Component (B): 6 to 40% by weight of carbon fiber based on 100% by weight of the carbon fiber reinforced resin composition, of which the average diameter of single fiber ranges from 1 to 20 &mgr;m; and Component (C): resin. The present invention provides carbon fiber reinforced resin composition, molding compounds and molded products therefrom, having good conductivity, mechanical properties and moldability by the above constitution.Type: ApplicationFiled: August 4, 2003Publication date: April 22, 2004Inventors: Eisuke Wadahara, Masato Honma, Soichi Ishibashi, Yasunori Nagashima, Yuji Kojima
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Patent number: 6455143Abstract: A molding material comprises at least the following components A, B and C, with the component C arranged to contact a composite comprising the components A plus B. The components are elongated members identified as: A A continuous reinforcing fiber bundle, B A thermoplastic polymer or oligomer having a weight average molecular weight of 200 to 50,000 and a melt viscosity lower than that of the component C, and C A thermoplastic resin having a weight average molecular weight of 10,000 or more.Type: GrantFiled: July 15, 1998Date of Patent: September 24, 2002Assignee: Toray Industries Inc.Inventors: Soichi Ishibashi, Tetsuyuki Kyono
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Patent number: 6384128Abstract: A thermoplastic resin composition capable of providing a thin walled molded article whose flame retardancy with a thickness of 1.6 mm ({fraction (1/16)} inch) in accordance with an UL 94 standard is V-0 or better, and which comprises the following components [A], [B] and [C], wherein the component [B] satisfies the following conditions (B1) and/or (B2): [A]: an electrically conductive fiber; [B]: a carbon powder; [C]: a thermoplastic resin; (B1): Raman scattering intensity ratio I2/I1 is 0.55-0.8; (B2): Raman scattering intensity ratio I2/I3 is 0.54-0.8; where I1: local maximum value of Raman scattering intensity appearing near a Raman shift of 1360 cm−1; I2: local minimum value of the Raman scattering intensity appearing near a Raman shift of 1480 cm−1; I3: local maximum value of the Raman scattering intensity appearing neat a Raman shift of 1600 cm−1.Type: GrantFiled: July 19, 2000Date of Patent: May 7, 2002Assignee: Toray Industries, Inc.Inventors: Eisuke Wadahara, Kenichi Yoshioka, Soichi Ishibashi
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Publication number: 20020019182Abstract: The present invention provides a molding material which is easy to produce and allows a reinforcing fiber bundle to be well dispersed in the molded product obtained by injection molding, etc., a production process thereof, a polyamide based resin composition with good flowability, and molded products obtained from them.Type: ApplicationFiled: September 18, 2001Publication date: February 14, 2002Applicant: Toray Industries, Inc.Inventors: Soichi Ishibashi, Tetsuyuki Kyono