Patents by Inventor Eiki Takahashi
Eiki Takahashi 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: 11912859Abstract: The purpose of the present invention is to provide: an epoxy resin composition capable of giving cured resins which combine flexural modulus with flexural strain on a high level and have excellent heat resistance; a prepreg comprising the epoxy resin composition and reinforcing fibers; and a fiber-reinforced composite material obtained by curing the prepreg and excellent especially in terms of 0° and 90° bending strength. An embodiment of the epoxy resin composition of the present invention for achieving such purpose is an epoxy resin composition which comprises the following components [A], [B], and [C] and satisfies a specific requirement. Component [A]: a trifunctional amine type epoxy resin. Component [B]: a bisphenol F type epoxy resin which is solid at 25° C. Component [C]: an aromatic amine compound.Type: GrantFiled: June 17, 2019Date of Patent: February 27, 2024Assignee: TORAY INDUSTRIES, INC.Inventors: Daisuke Konishi, Yuichi Yamakita, Noriyuki Hirano, Eiki Takahashi
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Patent number: 11345808Abstract: The present invention aims to provide an epoxy resin composition that is high in both fast curability and storage stability, a prepreg prepared by using the epoxy resin composition, and a fiber reinforced composite material prepared by curing the prepreg. The epoxy resin composition contains the following components [A], [B], [C], and [D] and meets the following requirements [a], [b], and [c]: [A]: epoxy resin, [B]: dicyandiamide, [C]: aromatic urea, [D]: borate ester, [a]: 0.014?(content of component [D]/content of component [C])?0.045, [b]: 0.9?(number of moles of active groups in component [A]/number of moles of active hydrogen in component [B])?1.2, and [c]: 14?(content of component [A]/content of component [C])?25.Type: GrantFiled: July 18, 2018Date of Patent: May 31, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Eiki Takahashi, Daisuke Konishi, Masayuki Miyoshi, Noriyuki Hirano
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Publication number: 20210253843Abstract: The purpose of the present invention is to provide: an epoxy resin composition capable of giving cured resins which combine flexural modulus with flexural strain on a high level and have excellent heat resistance; a prepreg comprising the epoxy resin composition and reinforcing fibers; and a fiber-reinforced composite material obtained by curing the prepreg and excellent especially in terms of 0° and 90° bending strength. An embodiment of the epoxy resin composition of the present invention for achieving such purpose is an epoxy resin composition which comprises the following components [A], [B], and [C] and satisfies a specific requirement. Component [A]: a trifunctional amine type epoxy resin. Component [B]: a bisphenol F type epoxy resin which is solid at 25° C. Component [C]: an aromatic amine compound.Type: ApplicationFiled: June 17, 2019Publication date: August 19, 2021Applicant: TORAY INDUSTRIES, INC.Inventors: Daisuke KONISHI, Yuichi YAMAKITA, Noriyuki HIRANO, Eiki TAKAHASHI
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Patent number: 10676611Abstract: The purpose of the present invention is to provide a prepreg which satisfies one of a)-c): a) having superior storage stability and capable of providing a fiber-reinforced composite material having superior mechanical properties; b) capable of providing a fiber-reinforced composite material having superior mechanical properties, and the obtained fiber-reinforced composite material has superior appearance quality; and c) having superior storage stability, generating less amount of heat when cured, and enabling the cure extent and the viscosity in the B-stage state to be flexibly controlled. To achieve the purpose, the present invention provides a prepreg including reinforced fibers and an epoxy resin composition which contains an epoxy resin and a curing agent represented by a specific chemical formula, and which satisfies a specific condition.Type: GrantFiled: July 20, 2017Date of Patent: June 9, 2020Assignee: TORAY INDUSTRIES, INC.Inventors: Eiki Takahashi, Daisuke Konishi, Noriyuki Hirano, Tatsuya Fujita, Shuji Udagawa
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Publication number: 20200140676Abstract: The present invention aims to provide an epoxy resin composition that is high in both fast curability and storage stability, a prepreg prepared by using the epoxy resin composition, and a fiber reinforced composite material prepared by curing the prepreg. The epoxy resin composition contains the following components [A], [B], [C], and [D] and meets the following requirements [a], [b], and [c]: [A]: epoxy resin, [B]: dicyandiamide, [C]: aromatic urea, [D]: borate ester, [a]: 0.014?(content of component [D]/content of component [C])?0.045, [b]: 0.9?(number of moles of active groups in component [A]/number of moles of active hydrogen in component [B])?1.2, and [c]: 14?(content of component [A]/content of component [C])?25.Type: ApplicationFiled: July 18, 2018Publication date: May 7, 2020Applicant: Toray Industries, Inc.Inventors: Eiki Takahashi, Daisuke Konishi, Masayuki Miyoshi, Noriyuki Hirano
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Publication number: 20190249002Abstract: The purpose of the present invention is to provide a prepreg which satisfies one of a)-c): a) having superior storage stability and capable of providing a fiber-reinforced composite material having superior mechanical properties; b) capable of providing a fiber-reinforced composite material having superior mechanical properties, and the obtained fiber-reinforced composite material has superior appearance quality; and c) having superior storage stability, generating less amount of heat when cured, and enabling the cure extent and the viscosity in the B-stage state to be flexibly controlled. To achieve the purpose, the present invention provides a prepreg including reinforced fibers and an epoxy resin composition which contains an epoxy resin and a curing agent represented by a specific chemical formula, and which satisfies a specific condition.Type: ApplicationFiled: July 20, 2017Publication date: August 15, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Eiki Takahashi, Daisuke Konishi, Noriyuki Hirano, Tatsuya Fujita, Shuji Udagawa
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Patent number: 8309792Abstract: It is an object of the present invention to provide a non-human gene-disrupted animal with a disrupted ADAM11 gene. According to the present invention, a non-human gene-disrupted animal, wherein either one of or both alleles of an ADAM11 gene are disrupted, is provided.Type: GrantFiled: July 12, 2006Date of Patent: November 13, 2012Assignee: Eisai R&D Management Co., Ltd.Inventors: Koji Sagane, Eiki Takahashi, Kazuto Yamazaki, Turo Oki
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Publication number: 20100333216Abstract: It is an object of the present invention to provide a non-human gene-disrupted animal with a disrupted ADAM11 gene. According to the present invention, a non-human gene-disrupted animal, wherein either one of or both alleles of an ADAM11 gene are disrupted, is provided.Type: ApplicationFiled: July 12, 2006Publication date: December 30, 2010Applicant: EISAI R&D MANAGEMENT CO., LTDInventors: Koji Sagane, Eiki Takahashi, Kazuto Yamazaki, Turo Oki
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Publication number: 20100168014Abstract: The present inventors have found that relaxin-3 has a feeding-stimulating activity, a body weight increasing activity, and fat weight increasing activity by intracerebroventricularly administering relaxin-3 to rats and observing the amount of feeding, body weight and fat weight, and so on after the administration. According to the present invention, a polypeptide having useful effects in stimulating feeding, increasing body weight, and fattening; a therapeutic agent containing said polypeptide; a method of screening for a compound, a substance, or a salt thereof which activates or suppresses a receptor of said polypeptide; a kit for said screening; and an agent which comprises a substance which inhibits expression of said polypeptide, such as a feeding-surpressing agent, a therapeutic agent for the treatment of obesity, and a therapeutic agent for the treatment of diabetes.Type: ApplicationFiled: November 9, 2009Publication date: July 1, 2010Inventors: Takayuki Hida, Tomoko Sekiya, Toru Sawai, Takashi Seiki, Eiki Takahashi, Michiko Kosasa, Kokichi Harada, Toru Arai
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Patent number: 7638490Abstract: Relaxin-3 is found to have feeding-stimulating activity, body weight increasing activity, and fat weight increasing activity when intracerebroventricularly administered to rats through observation of amount of feeding, body weight and fat weight after administration of relaxin-3. This invention includes: a polypeptide having useful effects in stimulating feeding, increasing body weight, and fattening; a therapeutic agent containing the polypeptide; a method of screening for a compound, a substance, or a salt thereof which activates or suppresses a receptor of the polypeptide; a kit for screening; and an agent with a substance which inhibits expression of the polypeptide, such as a feeding-suppressing agent, a therapeutic agent for the treatment of obesity, and a therapeutic agent for the treatment of diabetes.Type: GrantFiled: February 9, 2005Date of Patent: December 29, 2009Assignee: Eisai R&D Managment Co., Ltd.Inventors: Takayuki Hida, Tomoko Sekiya, Toru Sawai, Takashi Seiki, Eiki Takahashi, Michiko Kosasa, Kokichi Harada, Tohru Arai
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Publication number: 20090311185Abstract: The objects of the present invention are to provide a polypeptide having an antianxiety activity; a therapeutic agent containing the polypeptide; a method for treating anxiety using the polypeptide; a method of screening for a compound capable of activating or suppressing a receptor for the polypeptide and involved in the regulation of anxiety, a salt thereof, or a hydrate of them; and a kit for the screening. There is provided an antianxiety agent containing relaxin-3.Type: ApplicationFiled: April 26, 2006Publication date: December 17, 2009Inventors: Takayuki Hida, Toru Arai, Tomoko Sekiya, Eiki Takahashi, Kodo Shikata
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Publication number: 20070054850Abstract: The present inventors have found that relaxin-3 has a feeding-stimulating activity, a body weight increasing activity, and fat weight increasing activity by intracerebroventricularly administering relaxin-3 to rats and observing the amount of feeding, body weight and fat weight, and so on after the administration. According to the present invention, a polypeptide having useful effects in stimulating feeding, increasing body weight, and fattening; a therapeutic agent containing said polypeptide; a method of screening for a compound, a substance, or a salt thereof which activates or suppresses a receptor of said polypeptide; a kit for said screening; and an agent which comprises a substance which inhibits expression of said polypeptide, such as a feeding-surpressing agent, a therapeutic agent for the treatment of obesity, and a therapeutic agent for the treatment of diabetes.Type: ApplicationFiled: February 9, 2005Publication date: March 8, 2007Inventors: Takayuki Hida, Tomoko Sekiya, Toru Sawai, Takashi Seiki, Eiki Takahashi, Michiko Kosasa, Kokichi Harada, Tohru Arai
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Patent number: 7148011Abstract: The differential display method was used to search for a gene whose expression level in eosinophils collected from patients with atopic dermatitis differs in the exacerbation stage and in the remission stage. As a result, gene “2090-05” showing a significant increase in expression in eosinophils of patients in the remission stage was isolated. This gene is usable in testing for an allergic disease and screening for a candidate compound for a therapeutic agent therefor an allergic disease.Type: GrantFiled: September 21, 2001Date of Patent: December 12, 2006Assignees: Japan as represented by General Director of Agency of National Center for Child Health and Development, Eisai Co., Ltd., Genox Research, Inc.Inventors: Yuji Sugita, Ryoichi Hashida, Kaoru Ogawa, Tomoko Fujishima, Takeshi Nagasu, Gozoh Tsujimoto, Eiki Takahashi
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Patent number: 7067714Abstract: A non-human animal in which a gene coding for the N-type calcium channel is disrupted to lack functional N-type calcium channel, and a method for screening for a substance having a pharmacological action on blood pressure control, transmission of pain, blood sugar level control and so forth by using the animal.Type: GrantFiled: October 26, 2000Date of Patent: June 27, 2006Assignee: Eisai Research InstituteInventors: Mitsuhiro Ino, Norimasa Miyamoto, Eiki Takahashi, Toru Oki, Takashi Yoshinaga, Shinji Hatakeyama, Tetsuhiro Niidome, Kohei Sawada, Yukio Nishizawa, Isao Tanaka
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Publication number: 20040053282Abstract: The differential display method was used to search for a gene whose expression level in eosinophils of patients with atopic dermatitis. As a result, intersectin 2 was isolated as a gene showing a significant increase in expression in eosinophils of light patients. The gene is usable in testing for an allergic disease and screening for a candidate compound for a therapeutic agent therefor an allergic disease.Type: ApplicationFiled: August 11, 2003Publication date: March 18, 2004Inventors: Yuji Sugita, Ryoichi Hashida, Kaoru Ogawa, Takeshi Nagasu, Eiki Takahashi, Hirohisa Saito, Masaya Obayashi
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Publication number: 20040038252Abstract: The differential display method was used to search for a gene whose expression level in eosinophils collected from patients with atopic dermatitis differs in the exacerbation stage and in the remission stage. As a result, gene “2090-05” showing a significant increase in expression in eosinophils of patients in the remission stage was isolated. This gene is usable in testing for an allergic disease and screening for a candidate compound for a therapeutic agent therefor an allergic disease.Type: ApplicationFiled: July 31, 2003Publication date: February 26, 2004Inventors: Yuji Sugita, Ryoichi Hashida, Kaoru Ogawa, Tomoko Fujishima, Takeshi Nagasu, Gozoh Tsujimoto, Eiki Takahashi
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Patent number: 5031308Abstract: A method of manufacturing a mutilayered printed-wiring-board comprises attaching conductive members on conductive layers, superimposing a plurality of printed-wiring boards, and electrically connecting the conductive layers with one another by the conductive members.Type: GrantFiled: December 26, 1989Date of Patent: July 16, 1991Assignee: Japan Radio Co., Ltd.Inventors: Kazuo Yamashita, Eiki Takahashi, Osamu Teshigawara, Masaki Kinoshita, Takeshi Eimura, Takao Ohiwa
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Patent number: 4885503Abstract: A particle shielding element of a shape memory metal is installed between an electroconductive layer on the inner peripheral surface of a neck glass tube of a cathode-ray tube and a shield cup of an electron gun therein to close a gap between the neck glass tube and the shield cup for thereby guarding the electronic gun against invasion of particles, Before the particle shielding element is inserted into the neck glass tube, the element is deformed to reduce its outer diameter so that the element can be inserted into the neck glass tube without scratching the electroconductive layer. After the element has been installed in Position in the neck glass tube, the temperature therein is adjusted to cause the element to recovery to its initial shape into dust sealing engagement with the electroconductive layer.Type: GrantFiled: November 16, 1988Date of Patent: December 5, 1989Assignee: Hitachi, Ltd.Inventors: Eiki Takahashi, Masahiro Miyazaki, Kiyoshi Nakamura
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Patent number: 4368448Abstract: A water cooling apparatus for an electric circuit element is disclosed in which an internal waterway is connected with an external waterway by a connector with the whole body, the forward end or the inside part of the forward end thereof alone made of an alloy containing iron, nickel and/or chromium as main components. The water cooling apparatus may further comprise a net of an alloy containing iron, nickel and chromium as main components, the net being stretched in said waterway at the inside part of the forward end of the connector.Type: GrantFiled: July 3, 1980Date of Patent: January 11, 1983Assignee: Hitachi, Ltd.Inventors: Shigeo Kobayashi, Kazuo Kobayashi, Eiki Takahashi