Patents by Inventor Masaki Mitsunaga
Masaki Mitsunaga 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).
-
Patent number: 11014275Abstract: Provided is a method for manufacturing a fiber-reinforced resin molded article by cold press molding a fiber-reinforced resin material including reinforcing fibers and a thermoplastic resin using molds containing an upper mold and a lower mold. In the method, the respective parameters for: heating temperature; charge time; air-cooling rate; pressurization time; flow-stopping temperature; and a moldable time satisfies specified numerical ranges simultaneously.Type: GrantFiled: July 27, 2017Date of Patent: May 25, 2021Assignee: Teijin LimitedInventors: Masaki Mitsunaga, Hodaka Yokomizo
-
Patent number: 10913182Abstract: A fiber-reinforced resin shaped product includes: reinforcing fibers with a weight average fiber length of 100 mm or less; and a thermoplastic resin. The fiber-reinforced resin shaped product has grains on at least a part of a surface thereof. A maximum height (Rz) of the grains is 100 ?m to 200 ?m, and an average pitch (Rsm) between adjacent grains is 1100 ?m or less.Type: GrantFiled: December 26, 2016Date of Patent: February 9, 2021Assignee: Teijin LimitedInventors: Masaki Mitsunaga, Akihisa Nomura
-
Patent number: 10759091Abstract: Provided is a fiber-reinforced resin shaped product including reinforcing fibers and a thermoplastic resin and having grains on at least a part of a surface thereof. The ratio of a maximum reflectance (R) to a half-value width (H), each of which is obtained by goniophotometric measurement satisfies Expression (1): R/H?0.034×R?0.15 (1). In the expression, R is a maximum reflectance (%), and H is a half-value width (degree).Type: GrantFiled: January 5, 2017Date of Patent: September 1, 2020Assignee: Teijin LimitedInventor: Masaki Mitsunaga
-
Publication number: 20190160715Abstract: Provided is a method for manufacturing a fiber-reinforced resin molded article by cold press molding a fiber-reinforced resin material including reinforcing fibers and a thermoplastic resin using molds containing an upper mold and a lower mold. In the method, the respective parameters for: heating temperature; charge time; air-cooling rate; pressurization time; flow-stopping temperature; and a moldable time satisfies specified numerical ranges simultaneously.Type: ApplicationFiled: July 27, 2017Publication date: May 30, 2019Applicant: Teijin LimitedInventors: Masaki Mitsunaga, Hodaka Yokomizo
-
Publication number: 20190009436Abstract: A fiber-reinforced resin shaped product includes: reinforcing fibers with a weight average fiber length of 100 mm or less; and a thermoplastic resin. The fiber-reinforced resin shaped product has grains on at least a part of a surface thereof. A maximum height (Rz) of the grains is 100 ?m to 200 ?m, and an average pitch (Rsm) between adjacent grains is 1100 ?m or less.Type: ApplicationFiled: December 26, 2016Publication date: January 10, 2019Applicant: Teijin LimitedInventors: Masaki Mitsunaga, Akihisa Nomura
-
Publication number: 20190009437Abstract: Provided is a fiber-reinforced resin shaped product including reinforcing fibers and a thermoplastic resin and having grains on at least a part of a surface thereof. The ratio of a maximum reflectance (R) to a half-value width (H), each of which is obtained by goniophotometric measurement satisfies Expression (1): R/H?0.034×R?0.15 (1). In the expression, R is a maximum reflectance (%), and H is a half-value width (degree).Type: ApplicationFiled: January 5, 2017Publication date: January 10, 2019Applicant: Teijin LimitedInventor: Masaki Mitsunaga
-
Patent number: 9650350Abstract: A resin composition which comprises polylactic acid, does not release an isocyanate group at the time of production and has excellent hydrolysis resistance and a low environmental burden. The resin composition comprises: (A) 100 parts by weight of a resin component (component A) containing polylactic acid (component A-?); (B) 0.001 to 10 parts by weight of a compound (component B) having one carbodiimide group and a cyclic structure in which first nitrogen and second nitrogen are bonded to each other via a bonding group, the cyclic structure consisting of 8 to 50 atoms; and (C) 0.001 to 2 parts by weight of at least one antioxidant (component C) selected from the group consisting of a hindered phenol-based compound, a phosphite-based compound, a phosphonite-based compound and a thioether-based compound.Type: GrantFiled: January 17, 2011Date of Patent: May 16, 2017Assignee: TEIJIN LIMITEDInventors: Yuichi Matsuno, Masaki Mitsunaga, Jitsuo Oda, Masatsugu Furuki, Shinichiro Shoji, Takuro Kitamura, Yoshitaka Shibata
-
Patent number: 9472317Abstract: A resin composition for wire coating, which is excellent in extrudability, heat deterioration resistance, abrasion resistance, flame retardancy and insulating properties, can achieve low smoke-producing properties and contains no halogen compound and an insulated wire obtained therefrom. The resin composition for wire coating comprises (A) a specific thermoplastic polyester resin (component A), (B) a polyester block copolymer (component B), (C) a polycarbodiimide compound (component C), (D) magnesium hydroxide (component D), (E) an inorganic porous filler (component E), (F) a hindered phenol-based antioxidant (component F) and (G) a phosphorus-based antioxidant (component G) in a specific ratio.Type: GrantFiled: October 5, 2011Date of Patent: October 18, 2016Assignee: TEIJIN LIMITEDInventors: Masaki Mitsunaga, Zenichiro Shidara, Hidenori Nakagawa
-
Publication number: 20140066555Abstract: A method for producing a composition including polylactic acid and having excellent heat stability, especially moist heat stability, and a molded article thereof. The composition includes 100 parts by weight of a resin component (component A) which is composed of 5 to 100 wt % of polylactic acid (component A-?) and 95 to 0 wt % of a thermoplastic resin (component A-?), 0.001 to 5 parts by weight of a phosphono-fatty acid ester (component B), 0.01 to 5 parts by weight of a phosphate metal salt (component C), 0.001 to 2 parts by weight of at least one antioxidant (component D) selected from the group consisting of a phosphite-based compound, a phosphonite-based compound, a hindered phenol-based compound and a thioether-based compound, and 0.001 to 10 parts by weight of an end-sealing agent (component E).Type: ApplicationFiled: November 7, 2013Publication date: March 6, 2014Applicants: TEIJIN LIMITED, Teijin Chernicals LimitedInventors: Yuichi MATSUNO, Masaki MITSUNAGA, Jitsuo ODA, Mitsuru DOTEGUCHI, Yoshitaka SHIBATA, Kiyotsuna TOYOHARA, Masahiro IWAI, Takuro KITAMURA
-
Publication number: 20130251993Abstract: A resin composition for wire coating, which is excellent in extrudability, heat deterioration resistance, abrasion resistance, flame retardancy and insulating properties, can achieve low smoke-producing properties and contains no halogen compound and an insulated wire obtained therefrom. The resin composition for wire coating comprises (A) a specific thermoplastic polyester resin (component A), (B) a polyester block copolymer (component B), (C) a polycarbodiimide compound (component C), (D) magnesium hydroxide (component D), (E) an inorganic porous filler (component E), (F) a hindered phenol-based antioxidant (component F) and (G) a phosphorus-based antioxidant (component G) in a specific ratio.Type: ApplicationFiled: October 5, 2011Publication date: September 26, 2013Applicant: TEIJIN LIMITEDInventors: Masaki Mitsunaga, Zenichiro Shidara, Hidenori Nakagawa
-
Publication number: 20120289625Abstract: A resin composition which comprises polylactic acid, does not release an isocyanate group at the time of production and has excellent hydrolysis resistance and a low environmental burden. The resin composition comprises: (A) 100 parts by weight of a resin component (component A) containing polylactic acid (component A-?); (B) 0.001 to 10 parts by weight of a compound (component B) having one carbodiimide group and a cyclic structure in which first nitrogen and second nitrogen are bonded to each other via a bonding group, the cyclic structure consisting of 8 to 50 atoms; and (C) 0.001 to 2 parts by weight of at least one antioxidant (component C) selected from the group consisting of a hindered phenol-based compound, a phosphite-based compound, a phosphonite-based compound and a thioether-based compound.Type: ApplicationFiled: January 17, 2011Publication date: November 15, 2012Applicant: TEIJIN LIMITEDInventors: Yuichi Matsuno, Masaki Mitsunaga, Jitsuo Oda, Masatsugu Furuki, Shinichiro Shoji, Takuro Kitamura, Yoshitaka Shibata
-
Publication number: 20110263762Abstract: A composition comprising polylactic acid and having excellent heat stability, especially moist heat stability, and a molded article thereof. The composition comprises 100 parts by weight of a resin component (component A) which is composed of 5 to 100 wt % of polylactic acid (component A-?) and 95 to 0 wt % of a thermoplastic resin (component A-?), 0.001 to 5 parts by weight of a phosphono-fatty acid ester (component B), 0.01 to 5 parts by weight of a phosphate metal salt (component C), 0.001 to 2 parts by weight of at least one antioxidant (component D) selected from the group consisting of a phosphite-based compound, a phosphonite-based compound, a hindered phenol-based compound and a thioether-based compound, and 0.001 to 10 parts by weight of an end-sealing agent (component E).Type: ApplicationFiled: November 2, 2009Publication date: October 27, 2011Applicants: TEIJIN LIMITED, TEIJIN CHEMICALS LTD.Inventors: Yuichi Matsuno, Masaki Mitsunaga, Jitsuo Oda, Mitsuru Doteguchi, Yoshitaka Shibata, Kiyotsuna Toyohara, Masahiro Iwai, Takuro Kitamura
-
Publication number: 20070155888Abstract: This invention aims at providing an aromatic polycarbonate resin composition having high elasticity with a small content of an inorganic filler and a process for the production thereof, and provides a process for the production of a resin composition comprising 100 parts by weight of an aromatic polycarbonate (Component A) and 0.Type: ApplicationFiled: February 23, 2005Publication date: July 5, 2007Inventors: Koichi Imamura, Masaki Mitsunaga, Kunio Hatanaka, Katsuhiko Hironaka
-
Patent number: 7189796Abstract: An object of the present invention is to provide an aromatic polycarbonate resin composition having good rigidity and good hydrolysis resistance. The present invention is an aromatic polycarbonate resin composition comprising: (A) 100 parts by weight of aromatic polycarbonate (component A) (B) 0.1 to 20 parts by weight of layer silicate (component B) having 50 to 200 milliequivalents/100 g of cation exchange capacity and ion-exchanged by an organic onium ion represented by the following general formula (I): (wherein M represents a nitrogen atom or a phosphorus atom, R1 and R2 represent an alkyl group having 6 to 16 carbon atoms and may be the same as or different from each other, and R3 and R4 represent an alkyl group having 1 to 4 carbon atoms and may be the same as or different from each other), (C) 0.1 to 50 parts by weight of compound (component C) having an affinity for the component A and having a hydrophilic component, and (D) 0.Type: GrantFiled: October 29, 2003Date of Patent: March 13, 2007Assignee: Teijin Chemicals, Ltd.Inventors: Masaki Mitsunaga, Katsuhiko Hironaka
-
Patent number: 7098263Abstract: A thermoplastic resin composition comprising: (A) 100 parts by weight of a noncrystalline thermoplastic resin component (component A); (B) 0.1 to 50 parts by weight of a layered silicate (component B) which satisfies the following (i) to (iii): (i) it has a cation exchange capacity of 50 to 200 milliequivalents/100 g, and at least 40% of the cation exchange capacity being exchanged with an organic onium ion, (ii) 60% or more of the layered silicate particles have a thickness of 100 nm or less in the resin composition, and (iii) the interlayer spacing of the layered silicate (component B) in the resin composition is smaller than the interlayer spacing of the layered silicate alone by 0.5 nm or more; and (C) 0 to 50 parts by weight of a compound (component C) having affinity for the noncrystalline thermoplastic resin component as the component A and a hydrophilic component; and molded articles thereof.Type: GrantFiled: July 19, 2002Date of Patent: August 29, 2006Assignee: Teijin Chemicals, Ltd.Inventors: Masaki Mitsunaga, Katsuhiko Hironaka, Masami Okamoto
-
Publication number: 20050272903Abstract: An object of the present invention is to provide an aromatic polycarbonate resin composition having good rigidity and good hydrolysis resistance. The present invention is an aromatic polycarbonate resin composition comprising: (A) 100 parts by weight of aromatic polycarbonate (component A) (B) 0.1 to 20 parts by weight of layer silicate (component B) having 50 to 200 milliequivalents/100 g of cation exchange capacity and ion-exchanged by an organic onium ion represented by the following general formula (I): (wherein M represents a nitrogen atom or a phosphorus atom, R1 and R2 represent an alkyl group having 6 to 16 carbon atoms and may be the same as or different from each other, and R3 and R4 represent an alkyl group having 1 to 4 carbon atoms and may be the same as or different from each other), (C) 0.1 to 50 parts by weight of compound (component C) having an affinity for the component A and having a hydrophilic component, and (D) 0.Type: ApplicationFiled: October 29, 2003Publication date: December 8, 2005Applicant: TEIJIN CHEMICALS LTD.Inventors: Masaki Mitsunaga, Katsuhiko Hironaka
-
Publication number: 20040030021Abstract: A thermoplastic resin composition comprising:Type: ApplicationFiled: August 13, 2003Publication date: February 12, 2004Inventors: Masaki Mitsunaga, Katsuhiko Hironaka, Masami Okamoto