Patents by Inventor Mitsuru Naruta
Mitsuru Naruta 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: 10377838Abstract: Provided is a resin composite material in which a carbon material with a graphene structure is dispersed in a synthetic resin and which has a high mechanical strength and a low linear expansion coefficient and a method for producing the resin composite material. A resin composite material contains a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin, wherein the synthetic resin is grafted onto the carbon material and the grafting ratio thereof onto the carbon material is 5% to 3300% by weight. A method for producing a resin composite material includes the steps of: preparing a resin composite containing a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin; and grafting the synthetic resin onto the carbon material concurrently with or after the step of preparing the resin composite.Type: GrantFiled: September 2, 2011Date of Patent: August 13, 2019Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Nobuhiko Inui, Daisuke Mukohata, Mitsuru Naruta, Kensuke Tsumura, Kazuhiro Sawa, Katsunori Takahashi, Koji Taniguchi
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Patent number: 10047219Abstract: Provided is a polyolefin-based resin composition capable of obtaining a molded product having a high modulus of elongation and a low coefficient of linear expansion. The polyolefin-based resin composition includes a polyolefin-based resin containing either one or both of an acid-modified polyolefin-based resin and a polyolefin-based resin with a hydroxyl group, and flaked graphite. The flaked graphite is uniformly dispersed in the polyolefin-based resin. As a result, a molded product formed by using the polyolefin-based resin composition has excellent mechanical strength such as a high modulus of elongation, a low coefficient of linear expansion, and high dimensional stability, and can be used for various applications such as a material that is suitable for use as the exterior panels of automobiles or a steel sheet replacement material.Type: GrantFiled: June 16, 2011Date of Patent: August 14, 2018Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Katsunori Takahashi, Daisuke Mukohata, Mitsuru Naruta, Kouji Taniguchi, Naoyuki Nagatani, Shouji Nozato
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Publication number: 20140378599Abstract: Provided is a process for manufacturing a resin composite material having high mechanical strength. The process comprises the steps of: preparing a resin composition comprising a carbon material having a graphene structure, a solvent, and a thermoplastic resin; applying a shearing force to a solid of the resin composition so that the total shearing strain, which is a product of shear rate (s?1) and shear time (s), is 80000 or more either at a temperature lower than the melting point of the thermoplastic resin when the thermoplastic resin is crystalline or at a temperature in the vicinity of Tg of the thermoplastic resin when the thermoplastic resin is amorphous; and kneading the resin composition at a temperature equal to or higher than the boiling point of the solvent to obtain the resin composite material.Type: ApplicationFiled: March 29, 2013Publication date: December 25, 2014Inventors: Kazuhiro Sawa, Kensuke Tsumura, Mitsuru Naruta, Nobuhiko Inui, Katsunori Takahashi
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Publication number: 20130210955Abstract: Provided is a resin composite material in which a carbon material with a graphene structure is dispersed in a synthetic resin and which has a high mechanical strength and a low linear expansion coefficient and a method for producing the resin composite material. A resin composite material contains a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin, wherein the synthetic resin is grafted onto the carbon material and the grafting ratio thereof onto the carbon material is 5% to 3300% by weight. A method for producing a resin composite material includes the steps of: preparing a resin composite containing a synthetic resin and a carbon material with a graphene structure dispersed in the synthetic resin; and grafting the synthetic resin onto the carbon material concurrently with or after the step of preparing the resin composite.Type: ApplicationFiled: September 2, 2011Publication date: August 15, 2013Inventors: Nobuhiko Inui, Daisuke Mukohata, Mitsuru Naruta, Kensuke Tsumura, Kazuhiro Sawa, Katsunori Takahashi, Koji Taniguchi
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Publication number: 20130126795Abstract: Provided is a polyolefin-based resin composition capable of obtaining a molded product having a high modulus of elongation and a low coefficient of linear expansion. The polyolefin-based resin composition includes a polyolefin-based resin, flaked graphite, and either one or both of a compound with a six-membered ring structure and a compound with a five-membered ring structure. The flaked graphite is uniformly dispersed in the polyolefin-based resin. Thus, a molded product formed using the polyolefin-based resin composition has excellent mechanical strength such as a high modulus of elongation, a low coefficient of linear expansion, and high dimensional stability, and can be used for various applications such as a material that is suitable for use as the exterior panels of automobiles or a sheet metal replacement material.Type: ApplicationFiled: June 16, 2011Publication date: May 23, 2013Inventors: Katsunori Takahashi, Daisuke Mukohata, Kouji Taniguchi, Mitsuru Naruta, Shouji Nozato, Naoyuki Nagatani, Kensuke Tsumura, Kazuhiro Sawa
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Publication number: 20130096247Abstract: Provided is a polyolefin-based resin composition capable of obtaining a molded product having a high modulus of elongation and a low coefficient of linear expansion. The polyolefin-based resin composition includes a polyolefin-based resin containing either one or both of an acid-modified polyolefin-based resin and a polyolefin-based resin with a hydroxyl group, and flaked graphite. The flaked graphite is uniformly dispersed in the polyolefin-based resin. As a result, a molded product formed by using the polyolefin-based resin composition has excellent mechanical strength such as a high modulus of elongation, a low coefficient of linear expansion, and high dimensional stability, and can be used for various applications such as a material that is suitable for use as the exterior panels of automobiles or a steel sheet replacement material.Type: ApplicationFiled: June 16, 2011Publication date: April 18, 2013Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Katsunori Takahashi, Daisuke Mukohata, Mitsuru Naruta, Kouji Taniguchi, Naoyuki Nagatani, Shouji Nozato
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Publication number: 20130034709Abstract: The present invention provides a resin composition which can be molded easily and from which can be obtained synthetic resin molded articles superior in mechanical strength such as modulus of tensile elasticity, appearance such as surface smoothness, and dimensional stability. Since the resin composition of the present invention is characterized by containing a synthetic resin and a flaked graphite that is a laminate of graphene sheets the number of which is 150 or less and that has an aspect ratio of 20 or more, it is superior in moldability and synthetic resin molded articles with desired shapes can be produced therefrom by a widely used molding method.Type: ApplicationFiled: March 18, 2011Publication date: February 7, 2013Applicant: Sekisui Chemical Co., Ltd.Inventors: Katsunori Takahashi, Nobuhiko Inui, Naoyuki Nagatani, Daisuke Mukohata, Kouji Taniguchi, Mitsuru Naruta
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Publication number: 20120128951Abstract: Provided is a resin laminated plate which can achieve weight reduction and further increase in strength and is less likely to degrade in surface appearance. A resin laminated plate 1 including a layer made of a thermoplastic resin or thermosetting resin in a laminated structure includes: a first layer 2 made of a thermoplastic resin or thermosetting resin having a tensile modulus of elasticity of 0.8 to 2.0 GPa; and a second layer 3 disposed on the first layer 2, made of a different resin from the thermoplastic resin or thermosetting resin forming the first layer 2, and having a form selected from the group consisting of a film, a woven fabric, a non-woven fabric, and a mesh, wherein the ratio between the thickness of the first layer and the thickness of the second layer is within the range of 0.5 to 10 and the apparent bending modulus of elasticity of the resin laminated plate determined by the bending test defined in Japanese Industrial Standards (JIS) K7171 is 2.5 GPa to 8.5 GPa, both inclusive.Type: ApplicationFiled: September 17, 2010Publication date: May 24, 2012Inventors: Katsunori Takahashi, Daisuke Mukohata, Mitsuru Naruta, Kensuke Tsumura, Kazuhiro Sawa, Koji Taniguchi, Naoyuki Nagatani
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Patent number: 7726498Abstract: It is the object of the present invention to provide a sealed container which comprises a container comprising a thermoplastic resin and a stopper which is hardly slackening even when used in combination with the container, and a vacuum specimen-sampling container comprising the sealed container.Type: GrantFiled: July 16, 2004Date of Patent: June 1, 2010Assignee: Sekisui Chemical Co., Ltd.Inventors: Hideo Anraku, Masahiro Nakaizumi, Mitsuru Naruta
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Publication number: 20060175280Abstract: It is the object of the present invention to provide a sealed container which comprises a container comprising a thermoplastic resin and a stopper which is hardly slackening even when used in combination with the container, and a vacuum specimen-sampling container comprising the sealed container.Type: ApplicationFiled: July 16, 2004Publication date: August 10, 2006Inventors: Hideo Anraku, Masahiro Nakaizumi, Mitsuru Naruta