Patents by Inventor Hiroshi Urayama
Hiroshi Urayama 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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Publication number: 20220162072Abstract: An object of the present disclosure is to provide a method of recycling carbon fibers that allows efficiently obtaining carbon fibers suitable for reuse. An embodiment is the method of recycling carbon fibers that includes: preparing a carbon fiber reinforced plastic molded product containing a carbon fiber reinforced plastic containing a carbon fiber and a resin; performing a process of at least one of a heating process or an ultraviolet irradiation process on the carbon fiber reinforced plastic molded product; and removing the resin after the process from the carbon fiber by injecting a first liquid to at least the carbon fiber of the carbon fiber reinforced plastic molded product after the process.Type: ApplicationFiled: October 15, 2021Publication date: May 26, 2022Inventor: Hiroshi URAYAMA
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Patent number: 10167378Abstract: A processing method according to the present embodiment is a processing method of a fiber containing resin in which fibers are contained in a matrix resin. The processing method includes: a step of thermal decomposition of the matrix resin in the fiber containing resin; and a step of stirring a resulting fibers bundle in solvent after the thermal decomposition. At the time of the thermal decomposition, the matrix resin may be carbonized in a dry distillation-carbonization furnace, for example.Type: GrantFiled: April 2, 2015Date of Patent: January 1, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Urayama, Takahiro Takeuchi, Keiichiro Oshima, Ippei Noda
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Publication number: 20150284541Abstract: A processing method according to the present embodiment is a processing method of a fiber containing resin in which fibers are contained in a matrix resin. The processing method includes: a step of thermal decomposition of the matrix resin in the fiber containing resin; and a step of stirring a resulting fibers bundle in solvent after the thermal decomposition. At the time of the thermal decomposition, the matrix resin may be carbonized in a dry distillation-carbonization furnace, for example.Type: ApplicationFiled: April 2, 2015Publication date: October 8, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi URAYAMA, Takahiro TAKEUCHI, Keiichiro OSHIMA, Ippei NODA
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Publication number: 20150275382Abstract: A manufacturing method of a joint panel includes: joining an outer panel to an inner panel by applying an adhesive to an outer edge of the outer panel; performing electrodeposition coating on a surface of the outer panel of the joint panel in which the outer panel is joined to the inner panel; and burning, onto the outer panel, a coating film formed on the surface of the outer panel by the electrodeposition coating. The adhesive used herein is a room temperature curing adhesive that does not flow at the time of the burning.Type: ApplicationFiled: April 1, 2015Publication date: October 1, 2015Applicants: LORD CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi URAYAMA, Masaki NITTA, Kazuhito TANAKA, Yukio TSUKADA
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Publication number: 20140356053Abstract: Provided are a method for connecting members together that can easily form a connection structure, which has about the same high level of connection strength over the entire range of a position of superposition, in a short time, and a connection structure. The method is a method for connecting two or more members together, at least one of which is a fiber reinforced resin member containing a thermoplastic resin and also containing a reinforcing fiber material that serves as a heating element in the thermoplastic resin, at a position of superposition. The method includes pressing the members against each other while heating the members at a position of superposition using one of induction heating or dielectric heating and thus melting the thermoplastic resin with heat generated from the fiber material that serves as the heating element, thereby connecting the members together.Type: ApplicationFiled: December 20, 2011Publication date: December 4, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi Urayama
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Patent number: 8790425Abstract: The object of the present invention is to provide a method for aggregating and separating algae dispersed in a liquid efficiently. According to the present invention, a method for aggregating and separating algae dispersed in a liquid, which comprises adding an alkaline inorganic aggregating agent to the liquid at pH of 2.0 to 4.0 in which algae are dispersed, followed by adding a cationic polymer aggregating agent, is provided. Further, according to the present invention, a method for producing biofuel utilizing algae is provided.Type: GrantFiled: March 25, 2011Date of Patent: July 29, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Urayama, Minoru Kurata, Hiroaki Fukuda
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Publication number: 20110239531Abstract: The object of the present invention is to provide a method for aggregating and separating algae dispersed in a liquid efficiently. According to the present invention, a method for aggregating and separating algae dispersed in a liquid, which comprises adding an alkaline inorganic aggregating agent to the liquid at pH of 2.0 to 4.0 in which algae are dispersed, followed by adding a cationic polymer aggregating agent, is provided. Further, according to the present invention, a method for producing biofuel utilizing algae is provided.Type: ApplicationFiled: March 25, 2011Publication date: October 6, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi URAYAMA, Minoru Kurata, Hiroaki Fukuda
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Patent number: 7988905Abstract: The invention provides a method for manufacturing a molded woody article, which includes compression molding a base material containing wood fibers, polylactic acid fibers and an inorganic filler at a temperature not less than a melting point of the polylactic acid fibers, and maintaining the molded base material at a temperature close to a crystallization temperature of the polylactic acid fibers for a desired period of time, thereby crystallizing the polylactic acid fibers. In the molding step, the base material is entirely deformed and molded into a desired shape while the polylactic acid fibers are melted, and in the crystallizing step, the polylactic acid fibers are solidified, thereby producing the molded article. In the crystallizing step, polylactic acid crystallizes rapidly and reliably utilizing the inorganic filler as a crystal nucleating agent.Type: GrantFiled: March 17, 2005Date of Patent: August 2, 2011Assignees: Toyota Boshoku Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Masanori Hashiba, Hideki Kawashiri, Takashi Inoh, Hisashi Okuyama, Hiroshi Urayama, Katsuhiko Mochizuki, Yuhei Maeda
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Patent number: 7416779Abstract: To provide a fiberboard capable of reducing a load on the environment at all states of producing, using, and abolishing and moreover having a high degree of bending strength and a high bending-strength retention rate at high temperature and high humidity so as to be usable for an automobile interior material or building material and a fiber-board producing method. The fiberboard is formed by mixing natural fiber with polylactic acid resin serving as a binder and has an apparent density of 0.2 g/cm3.Type: GrantFiled: September 17, 2003Date of Patent: August 26, 2008Assignees: Toyota Auto Body Co. Ltd., Toyota Boshoku Co. Ltd., Toray Industries, Inc., Toyota Tsusho Corporation, Toyota Jidosha Kabushiki KaishaInventors: Masanori Hashiba, Takehiro Kato, Kousuke Tamaki, Osamu Mito, Kazuya Matsumura, Tomomichi Fujiyama, Yuhei Maeda, Eiji Sugiyama, Takashi Inoh, Hiroshi Urayama, Hisashi Okuyama
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Publication number: 20070176315Abstract: A method is provided for manufacturing a molded woody article. The method includes compression molding a base material containing wood fibers, polylactic acid fibers and an inorganic filler at a temperature not less than a melting point of said polylactic acid fibers, and maintaining said molded base material at a temperature close to a crystallization temperature of said polylactic acid fibers for a desired period of time, thereby crystallizing the polylactic acid fibers. In the molding step, the base material is entirely deformed and molded into a desired shape while the polylactic acid fibers are melted, and in the crystallizing step, the polylactic acid fibers are solidified, thereby producing the molded article. In the crystallizing step, polylactic acid crystallizes rapidly and reliably utilizing the inorganic filler as a crystal nucleating agent. Polylactic acid crystallizes from portions contacting the wood fibers.Type: ApplicationFiled: March 17, 2005Publication date: August 2, 2007Inventors: Masanori Hashiba, Hideki Kawashiri, Takashi Inoh, Hisashi Okuyama, Hiroshi Urayama, Katsuhiko Mochizuki, Yuhei Maeda
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Patent number: 7084192Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.Type: GrantFiled: July 15, 2003Date of Patent: August 1, 2006Assignees: Kabushiki Kaisha Toyota Chuo Kankyusho, Toyota Jidosha Kabushiki KaishaInventors: Makoto Ouchi, Hirotaka Okamoto, Mitsuru Nakano, Hisato Takeuchi, Arimitsu Usuki, Takeshi Kanamori, Hiroshi Urayama, Hisashi Okuyama, Takashi Inou, Yasumitsu Isobe
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Publication number: 20050001358Abstract: A polylactic acid-based resin composition is provided from which molded articles with a high heat resistance and high impact strength can be molded with improved moldability. Also provided is a heat-resistant polylactic acid-based resin molded article manufactured from the polylactic acid-based resin composition, as well as a process for manufacturing such a heat-resistant molded article. A polylactic acid-based resin composition comprising 0.01 to 5.0 parts by weight of a metal phosphate and 0.01 to 5.0 parts by weight of a basic inorganic aluminum compound, each serving as a nucleating agent, with respect to 100 parts by weight of a polylactic acid-based polymer. The polylactic acid-based resin composition is melted and filled a mold of a molding machine set in a temperature range of not more than the crystallization-initiating point nor less than the glass transition point, as measured by a differential scanning calorimeter (DSC), to be molded the composition under crystallizing.Type: ApplicationFiled: December 18, 2002Publication date: January 6, 2005Inventors: Kenji Nakazawa, Etsuo Tobita, Toshinori Yukino, Hiroshi Urayama, Takeshi Kanamori, Hisashi Okuyama
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Publication number: 20040096623Abstract: To provide a fiberboard capable of reducing a load on the environment at all states of producing, using, and abolishing and moreover having a high degree of bending strength and a high bending-strength retention rate at high temperature and high humidity so as to be usable for an automobile interior material or building material and a fiber-board producing method. The fiberboard is formed by mixing natural fiber with polylactic acid resin serving as a binder and has an apparent density of 0.2 g/cm3.Type: ApplicationFiled: September 17, 2003Publication date: May 20, 2004Inventors: Masanori Hashiba, Takehiro Kato, Kousuke Tamaki, Osamu Mito, Kazuya Matsumura, Tomomichi Fujiyama, Yuhei Maeda, Eiji Sugiyama, Takashi Inoh, Hiroshi Urayama, Hisashi Okuyama
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Publication number: 20040054051Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.Type: ApplicationFiled: July 15, 2003Publication date: March 18, 2004Applicants: Kabushiki Kaisha Toyota Chuo Kenkyusho, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Makoto Ouchi, Hirotaka Okamoto, Mitsuru Nakano, Hisato Takeuchi, Arimitsu Usuki, Takeshi Kanamori, Hiroshi Urayama, Hisashi Okuyama, Takashi Inou, Yasumitsu Isobe
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Patent number: 6399197Abstract: The object of the present invention is to provide a monofilament which has sufficient mechanical strength to be practically used also as a string for rackets and which is excellent in workability. Disclosed is a monofilament which is formed by extruding a material prepared by blending mainly a polylactic acid type polymer (A) and an aliphatic polyester (B) other than polylactic acid, and drawing the extruded material. This could be used as a racket string which has a tenacity-elongation curve similar to that of natural gut and is excellent in water resistance and heat resistance.Type: GrantFiled: April 26, 2000Date of Patent: June 4, 2002Assignees: Shimadzu Corporation, Gosen Co., Ltd.Inventors: Takeshi Kanamori, Hiroshi Urayama, Yoshiyuki Ohara, Tameyuki Nagano
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Publication number: 20010051692Abstract: The present invention provides a resin composition comprising polylactic acid and aliphatic polyester carbonate, which has practically adequate heal-resistance temperature, moldability, thermostability, solvent resistance and high mechanical strength, as well as a molded article thereof. In the resin composition, the Vicat softening point is 60° C. or more, the tensile modulus of elasticity is 0.9 GPa or more, the modulus in flexure is 0.6 GPa or more, and the mixing ratio of polylactic acid (A) and aliphatic polyester carbonate (B), in terms of the ratio of (A)/(B) by weight, is 95/5 to 5/95.Type: ApplicationFiled: July 16, 2001Publication date: December 13, 2001Applicant: Shimadzu CorporationInventors: Takeshi Kanamori, Hiroshi Urayama, Kyohei Takakuwa, Makoto Nakamura, Yasuo Teraya, Sakae Shimotsuma
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Patent number: 6262184Abstract: The present invention provides a resin composition comprising polylactic acid and aliphatic polyester carbonate, which has practically adequate heat-resistance temperature, moldability, thermostability, solvent resistance and high mechanical strength, as well as a molded article thereof. In the resin composition, the Vicat softening point is 60° C. or more, the tensile modulus of elasticity is 0.9 GPa or more, the modulus in flexure is 0.6 GPa or more, and the mixing ratio of polylactic acid (A) and aliphatic polyester carbonate (B), in terms of the ratio of (A)/(B) by weight, is 95/5 to 5/95. Further, the present invention provides a biodegradable injection-molded article having improvements in mechanical characteristics and impact resistance and superior disposal properties, particularly having strength enough to make it usable as a headgear material for use in helmets.Type: GrantFiled: September 30, 1999Date of Patent: July 17, 2001Assignees: Shimadzu Corporation, Mitsubishi Gas Chemical Company, Inc., Starlite Co., Ltd.Inventors: Takeshi Kanamori, Hiroshi Urayama, Kyohei Takakuwa, Makoto Nakamura, Yasuo Teraya, Sakae Shimotsuma