Patents by Inventor Mitsushige Hamaguchi
Mitsushige Hamaguchi 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).
-
Publication number: 20240017444Abstract: A molding material contains a reinforcing fiber bundle (A) and a polyphenylene sulfide (B), wherein the melting point of the polyphenylene sulfide is 270° C. or less; and a molded article containing a reinforcing fiber and a polyphenylene sulfide, wherein the weight average fiber length of the reinforcing fiber is 0.3 mm or more and 3.0 mm or less, and the melting point of the polyphenylene sulfide is 270° C. or less, or the crystallization temperature during cooling of the polyphenylene sulfide is 190° C. or less. Because generation of gas derived from the reinforcing fiber bundle or a sizing agent during a molding process can be reduced, and the surface roughening of a molded article due to the gas can be suppressed, a molding material achieving both of surface smoothness and mechanical properties of the molded article can be obtained.Type: ApplicationFiled: October 21, 2021Publication date: January 18, 2024Inventors: Shin Hirata, Takafumi Suzuki, Mitsushige Hamaguchi
-
Patent number: 11794385Abstract: The following configuration is adopted for the purpose of solving reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enabling free design such as thin wall molding or complex shape molding of the injection molding body. That is, there is provided an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated, the substrate for reinforcement (a) covering a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b), the ratio of thickness Ta of the substrate for reinforcement (a) to thickness T of a weldline part of the integrally molded body satisfying relational expression: in a case of Ea?Ebw, Ta/T?((Ebw??(Ea·Ebw))/(Ebw?Ea)) in a case of Ea=Ebw, Ta/T?0.Type: GrantFiled: August 24, 2018Date of Patent: October 24, 2023Assignee: TORAY INDUSTRIES, INC.Inventors: Takafumi Suzuki, Yuichiro Sento, Naokichi Imai, Mitsushige Hamaguchi, Masato Honma
-
Patent number: 11799199Abstract: The present invention aims to provide an electronic device housing that is able to maintain the antenna performance without deteriorating the radio communication performance, excellent in terms of the degree of warpage and dimensional accuracy, and mass productivity. The electronic device housing includes a fiber reinforcing member (a) and a fiber reinforcing member (b), wherein the fiber reinforcing member (a) contains a resin (a1) and a fiber (a2), the fiber (a2) being in the form of discontinuous fibers; the fiber reinforcing member (b) contains a resin (b1) and a fiber (b2), the fiber (b2) being in the form of continuous fibers; the projected area of the fiber reinforcing member (a) accounts for 60% or more of the total projected area, which accounts for 100%, of the housing projected onto the plane of the top face; and requirements (i) and/or (ii) given below are met: (i) the resin (a1) is a thermoplastic resin having a melting point of more than 265° C.Type: GrantFiled: September 25, 2017Date of Patent: October 24, 2023Assignee: TORAY INDUSTRIES, INC.Inventors: Mitsushige Hamaguchi, Takashi Fujioka, Masato Honma
-
Patent number: 11800656Abstract: The invention aims to provide an electronic device housing that can maintain the antenna performance without deteriorating the radio communication performance, ensures uniform characteristics as one molded electronic device housing in spite of consisting of a plurality of members, and show excellent features in terms of the degree of warpage and dimensional accuracy as well as small deformation in high temperature environments and high mass productivity.Type: GrantFiled: September 25, 2017Date of Patent: October 24, 2023Assignee: TORAY INDUSTRIES, INC.Inventors: Mitsushige Hamaguchi, Takashi Fujioka, Masato Honma
-
Publication number: 20230272216Abstract: A fiber-reinforced polyamide resin composition molded article is characterized by 5 to 50 parts by weight of reinforcing fibers, 40 to 94.9 parts by weight of a polyamide resin composition, and 0.1 to 10 parts by weight of an ammonium salt composed of ammonia and an aliphatic dicarboxylic acid having 6 to 12 carbon atoms, and which is also characterized in that: a weight average fiber length of the reinforcing fibers is 0.4 to 7 mm; the polyamide resin composition comprises a polyamide resin, a second resin having a reactive functional group, and a compound produced by a reaction of the resin and the second resin; and the second resin is dispersed in a form of particles with a number average particle diameter of 10 to 1,000 nm.Type: ApplicationFiled: August 18, 2021Publication date: August 31, 2023Inventors: Shin Hirata, Mitsushige Hamaguchi, Nobuhiro Morioka, Takafumi Suzuki
-
Patent number: 11534117Abstract: An imaging table to be supported in a cantilever state on an X-ray imaging apparatus, includes a planar body including an opening portion in a surface to be connected to the apparatus, and a coupling member to be connected to the apparatus. The planar body includes a first member forming a top surface including an X-ray irradiation surface, and a second member forming a bottom surface opposed to the X-ray irradiation surface and a standing wall portion erectly provided on an outer circumference of the bottom surface. The second member is bonded to the first member in the standing wall portion. The first member and the coupling member are bonded to each other. The first member has an aluminum-equivalent X-ray transmission dose of 0.5 mmAL or less at any point in the X-ray irradiation surface.Type: GrantFiled: March 20, 2019Date of Patent: December 27, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20220403125Abstract: A fiber reinforced thermoplastic resin molded article includes a thermoplastic resin [A] and carbon fibers [B], a content of the thermoplastic resin [A] being 50 to 95 parts by weight and a content of the carbon fibers [B] being 5 to 50 parts by weight per 100 parts by weight of a total of the thermoplastic resin [A] and the carbon fibers [B], the molded article having a bending elastic modulus of 30 GPa or more, an interfacial shear strength between the thermoplastic resin [A] and the carbon fibers [B] being 15 MPa or more, and a logarithmic decrement of the molded article calculated by Formula (1) of less than 3, wherein the carbon fibers [B] have a weight-average fiber length (Lw) of 0.5 to 10.0 mm: Logarithmic decrement ?=(1/n)×ln(?(1)/?(1+n))??(1).Type: ApplicationFiled: November 18, 2020Publication date: December 22, 2022Inventors: Shin Hirata, Mitsushige Hamaguchi
-
Publication number: 20220403122Abstract: A fiber-reinforced resin molding material includes at least components (A) to (D), wherein the fiber-reinforced resin molding material has a weight loss on heating, when heated at 300° C. for 10 minutes either in a nitrogen atmosphere or in an air atmosphere, of 1.5% or less, and components (A) to (D) are: (A) an amorphous thermoplastic resin: 100 parts by weight (B) a reinforcement fiber: 4 to 60 parts by weight (C) a phosphorus-based flame retardant: 20 to 60 parts by weight (D) an antioxidant (D): 1.0% by weight or more.Type: ApplicationFiled: November 9, 2020Publication date: December 22, 2022Inventors: Kazuki Yoshihiro, Shin Hirata, Mitsushige Hamaguchi
-
Patent number: 11389121Abstract: An imaging table for a mammography apparatus is formed by a planar body and is to be supported in a cantilever state on a body of the mammography apparatus. At least an X-ray irradiation surface in the planar body has at least one of the following configurations (1) and (2): (1) the X-ray irradiation surface is formed by a carbon fiber composite material including a unidirectional carbon fiber composite material containing carbon fibers and a matrix resin, the carbon fibers being aligned in one direction; and (2) the X-ray irradiation surface is formed by a skin material and a resin sheet, the skin material including a carbon fiber composite material containing continuous fibers and a matrix resin, the resin sheet being disposed on an inner layer side from the skin material.Type: GrantFiled: March 20, 2019Date of Patent: July 19, 2022Assignee: Toray Industries, Inc.Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
-
Patent number: 11141893Abstract: In order to solve reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enable free design such as thin wall molding or complex shape molding of the injection molding body, there is provided an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated, in which the substrate for reinforcement (a) has a difference in an orientation angle of the discontinuous fiber (a1) in each of regions obtained by dividing a major axis direction of the substrate for reinforcement (a) into 10 equal parts of within 10°, and the substrate for reinforcement (a) covers a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b).Type: GrantFiled: August 24, 2018Date of Patent: October 12, 2021Assignee: TORAY INDUSTRIES, INC.Inventors: Takafumi Suzuki, Yuichiro Sento, Naokichi Imai, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20210106293Abstract: An imaging table for a mammography apparatus is formed by a planar body and is to be supported in a cantilever state on a body of the mammography apparatus. At least an X-ray irradiation surface in the planar body has at least one of the following configurations (1) and (2): (1) the X-ray irradiation surface is formed by a carbon fiber composite material including a unidirectional carbon fiber composite material containing carbon fibers and a matrix resin, the carbon fibers being aligned in one direction; and (2) the X-ray irradiation surface is formed by a skin material and a resin sheet, the skin material including a carbon fiber composite material containing continuous fibers and a matrix resin, the resin sheet being disposed on an inner layer side from the skin material.Type: ApplicationFiled: March 20, 2019Publication date: April 15, 2021Applicant: Toray Industries, Inc.Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20210030376Abstract: An imaging table to be supported in a cantilever state on an X-ray imaging apparatus, includes a planar body including an opening portion in a surface to be connected to the apparatus, and a coupling member to be connected to the apparatus. The planar body includes a first member forming a top surface including an X-ray irradiation surface, and a second member forming a bottom surface opposed to the X-ray irradiation surface and a standing wall portion erectly provided on an outer circumference of the bottom surface. The second member is bonded to the first member in the standing wall portion. The first member and the coupling member are bonded to each other. The first member has an aluminum-equivalent X-ray transmission dose of 0.5 mmAL or less at any point in the X-ray irradiation surface.Type: ApplicationFiled: March 20, 2019Publication date: February 4, 2021Applicant: Toray Industries, Inc.Inventors: Tomohiro Takehara, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20200198194Abstract: In order to solve reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enable free design such as thin wall molding or complex shape molding of the injection molding body, there is provided an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated, in which the substrate for reinforcement (a) has a difference in an orientation angle of the discontinuous fiber (a1) in each of regions obtained by dividing a major axis direction of the substrate for reinforcement (a) into 10 equal parts of within 10°, and the substrate for reinforcement (a) covers a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b).Type: ApplicationFiled: August 24, 2018Publication date: June 25, 2020Applicant: Toray Industries, Inc.Inventors: Takafumi Suzuki, Yuichiro Sento, Naokichi Imai, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20200198193Abstract: The following configuration is adopted for the purpose of solving reduction in strength and rigidity at a weldline which is a problem of an injection molding body, and enabling free design such as thin wall molding or complex shape molding of the injection molding body. That is, there is provided an integrally molded body in which a substrate for reinforcement (a) having a discontinuous fiber (a1) and a resin (a2) and an injection molding body (b) having a discontinuous fiber (b1) and a resin (b2) are integrated, the substrate for reinforcement (a) covering a part or all of a weldline of the injection molding body (b) to be integrated with the injection molding body (b), the ratio of thickness Ta of the substrate for reinforcement (a) to thickness T of a weldline part of the integrally molded body satisfying relational expression: in a case of Ea?Ebw, Ta/T?((Ebw??(Ea·Ebw))/(Ebw?Ea)) in a case of Ea=Ebw, Ta/T?0.Type: ApplicationFiled: August 24, 2018Publication date: June 25, 2020Applicant: Toray Industries, Inc.Inventors: Takafumi Suzuki, Yuichiro Sento, Naokichi Imai, Mitsushige Hamaguchi, Masato Honma
-
Publication number: 20190237862Abstract: The present invention aims to provide an electronic device housing that is able to maintain the antenna performance without deteriorating the radio communication performance, excellent in terms of the degree of warpage and dimensional accuracy, and mass productivity. The electronic device housing includes a fiber reinforcing member (a) and a fiber reinforcing member (b), wherein the fiber reinforcing member (a) contains a resin (a1) and a fiber (a2), the fiber (a2) being in the form of discontinuous fibers; the fiber reinforcing member (b) contains a resin (b1) and a fiber (b2), the fiber (b2) being in the form of continuous fibers; the projected area of the fiber reinforcing member (a) accounts for 60% or more of the total projected area, which accounts for 100%, of the housing projected onto the plane of the top face; and requirements (i) and/or (ii) given below are met: (i) the resin (a1) is a thermoplastic resin having a melting point of more than 265° C.Type: ApplicationFiled: September 25, 2017Publication date: August 1, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Mitsushige HAMAGUCHI, Takashi FUJIOKA, Masato HONMA
-
Publication number: 20190208654Abstract: The invention aims to provide an electronic device housing that can maintain the antenna performance without deteriorating the radio communication performance, ensures uniform characteristics as one molded electronic device housing in spite of consisting of a plurality of members, and show excellent features in terms of the degree of warpage and dimensional accuracy as well as small deformation in high temperature environments and high mass productivity.Type: ApplicationFiled: September 25, 2017Publication date: July 4, 2019Applicant: TORAY INDUSTRIES, INC.Inventors: Mitsushige HAMAGUCHI, Takashi FUJIOKA, Masato HONMA
-
Patent number: 9850343Abstract: The present invention is a method for producing a liquid crystalline polyester, which comprises reacting an aromatic hydroxycarboxylic acid, a diol containing 70 mol % or more of an aromatic diol having a structural unit (I) as shown below and an aromatic dicarboxylic acid with one another in the presence of an acylating agent and an aliphatic sulfonic acid represented by formula (A) shown below. (wherein Ar represents a bivalent aromatic group which is an aromatic hydrocarbon group and has a molecular weight of less than 200) Formula (A) R—SO3H (wherein R represents an alkyl group having 1 to 12 carbon atoms) According to the present invention, a liquid crystalline polyester, which can be molded into an article having excellent tensile strength and excellent creep properties and from which a gas is generated in a reduced amount, can be produced with high efficiency.Type: GrantFiled: July 25, 2014Date of Patent: December 26, 2017Assignee: TORAY INDUSTRIES, INC.Inventors: Akito Konishi, Mitsushige Hamaguchi, Hideyuki Umetsu
-
Patent number: 9574065Abstract: A thermoplastic resin composition includes 100 parts by weight of a thermoplastic resin (a) that is a liquid crystalline polyester and/or a polyphenylene sulfide; and 0.001 to 10 parts by weight of a metal complex (b) having a monodentate or a bidentate ligand; and at least one metal and/or its salt selected from the group consisting of copper, zinc, nickel, manganese, cobalt, chromium and tin.Type: GrantFiled: November 28, 2012Date of Patent: February 21, 2017Assignee: Toray Industries, Inc.Inventors: Kohei Miyamoto, Mitsushige Hamaguchi, Hideyuki Umetsu
-
Publication number: 20160145380Abstract: The present invention is a method for producing a liquid crystalline polyester, which comprises reacting an aromatic hydroxycarboxylic acid, a diol containing 70 mol % or more of an aromatic diol having a structural unit (I) as shown below and an aromatic dicarboxylic acid with one another in the presence of an acylating agent and an aliphatic sulfonic acid represented by formula (A) shown below. (wherein Ar represents a bivalent aromatic group which is an aromatic hydrocarbon group and has a molecular weight of less than 200) Formula (A) R—SO3H (wherein R represents an alkyl group having 1 to 12 carbon atoms) According to the present invention, a liquid crystalline polyester, which can be molded into an article having excellent tensile strength and excellent creep properties and from which a gas is generated in a reduced amount, can be produced with high efficiency.Type: ApplicationFiled: July 25, 2014Publication date: May 26, 2016Applicant: TORAY Industries, Inc.Inventors: Akito KONISHI, Mitsushige HAMAGUCHI, Hideyuki UMETSU
-
Patent number: 9109159Abstract: A liquid crystalline polyester having structural units (I), (II), (III), (IV) and (V), wherein a ratio of the structural unit (I) to sum of the structural units (I), (II) and (III) is 68 to 80 mol %, a ratio of the structural unit (II) to sum of the structural units (II) and (III) is 55 to 75 mol %, and a ratio of the structural unit (IV) to sum of the structural units (IV) and (V) is 60 to 85 mol %, wherein a total amount of the structural units (II) and (III) is substantially equimolar with a total amount of the structural units (IV) and (V), and ?S (entropy of melting) defined by Equation [1] given below is 1.0 to 3.Type: GrantFiled: December 14, 2011Date of Patent: August 18, 2015Assignee: Toray Industries, Inc.Inventors: Kohei Miyamoto, Mitsushige Hamaguchi, Hideyuki Umetsu