Patents by Inventor Masataka Aoyama
Masataka Aoyama 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: 11968863Abstract: A display panel is provided. The display panel includes a display region, a functional layer, a first insulating film, and a first conductive film; the display region includes a pixel; the pixel includes a display element and a pixel circuit; the display element includes a first electrode and a second electrode; the second electrode includes a first opening portion; the functional layer includes the pixel circuit, a second opening portion, and an auxiliary wiring; the pixel circuit is electrically connected to the display element in the second opening portion; the auxiliary wiring includes a region overlapping with the first opening portion; the first insulating film includes a third opening portion; the third opening portion includes a region overlapping with the first opening portion; and the first conductive film is electrically connected to the second electrode and the auxiliary wiring in the third opening portion.Type: GrantFiled: August 21, 2019Date of Patent: April 23, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hisao Ikeda, Masataka Nakada, Tomoya Aoyama
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Publication number: 20220089847Abstract: The present invention provides a resin composition which includes: carbon nanotubes (A); and a resin (B) which is at least one selected from the group consisting of: an ionomer of an ethylene-unsaturated carboxylic acid copolymer (B1); and an ethylene-unsaturated carboxylic acid copolymer (B2).Type: ApplicationFiled: January 20, 2020Publication date: March 24, 2022Inventors: Koichi NISHIJIMA, Hisao GONOHE, Masataka AOYAMA
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Patent number: 8969468Abstract: The invention is a methacrylic resin composition which includes a methacrylic resin (A) and a saponified polymer (B) that is an alkaline-saponified product of an ethylene-unsaturated carboxylic acid ester copolymer, and the methacrylic resin composition has a concentration of alkali ions of from 0.03 mol/kg to 2.8 mol/kg.Type: GrantFiled: May 23, 2012Date of Patent: March 3, 2015Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventors: Masataka Aoyama, Toshiyuki Ishii, Youichi Shinya, Kenichi Date
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Publication number: 20140100322Abstract: The invention is a methacrylic resin composition which includes a methacrylic resin (A) and a saponified polymer (B) that is an alkaline-saponified product of an ethylene-unsaturated carboxylic acid ester copolymer, and the methacrylic resin composition has a concentration of alkali ions of from 0.03 mol/kg to 2.8 mol/kg.Type: ApplicationFiled: May 23, 2012Publication date: April 10, 2014Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTD.Inventors: Masataka Aoyama, Toshiyuki Ishii, Youichi Shinya, Kenichi Date
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Publication number: 20130330548Abstract: An adhesive film or sheet of the present invention includes an adhesive layer containing an ethylene-alkyl (meth)acrylate copolymer (A). The ethylene-alkyl (meth)acrylate copolymer (A) is a random binary copolymer of ethylene and alkyl(meth)acrylate, carbon atoms of an alkyl group of the alkyl(meth)acrylate are 2 or more, and a melting point T[° C.] measured based on JIS K7121-1987 and unit content X [mol %] of the alkyl (meth)acrylate satisfy the following Expression (1). ?3.0X+125?T??3.0X+107??(1) (Herein, the adhesive layer does not contain a high-crystalline ethylene-based or propylene-based copolymer having a melting temperature of equal to or higher than 115° C.Type: ApplicationFiled: February 20, 2012Publication date: December 12, 2013Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTD.Inventors: Masataka Aoyama, Koichiro Yamamoto, Yoshitaka Hironaka, Atsushi Morimoto, Chikara Ichinoseki
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Patent number: 8497321Abstract: A tacky resin composition which has proper initial tackiness, is sufficiently inhibited from rising in tackiness with time, can keep tackiness at a proper range even when it receives a slight heat history or is stored for a long time, has very small dependence on peeling speed, and can provide high transparency to a pressure-sensitive adhesive film or sheet as required, and a pressure-sensitive adhesive film or sheet for the surface protection of an article, which is obtained form the tacky resin composition. The tacky resin composition comprises (A) 5 to 80 parts by weight of an olefin polymer (component A), (B) 5 to 80 parts by weight of an ethylene/unsaturated ester copolymer (component B) and (C) 1 to 60 parts by weight of a styrene-based elastomer and/or an olefin-based elastomer (component C) based on 100 parts by weight of the total of the components A, B and C.Type: GrantFiled: January 28, 2009Date of Patent: July 30, 2013Assignee: Du Pont-Mitsui Polychemicals Co., Ltd.Inventors: Masataka Aoyama, Yoshitaka Hironaka, Hisao Gonohe
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Publication number: 20130130001Abstract: The purpose of the present invention is to provide a laminate film which has excellent heat resistance and stress relaxing properties and is suitable as a component member for a film that is used for the production of a semiconductor. The present invention relates to a laminate film (10) having a laminated structure composed of at least two layers including the outermost layer (6), wherein the outermost layer (6) comprises a thermoplastic resin composition containing a thermoplastic resin having a melting point of 98° C. or higher, at least one layer (a second layer (3)) other than the outermost layer (6) comprises a resin composition containing an ethylene-(unsaturated carboxylic acid) copolymer having an unsaturated carboxylic acid content of 17 mass % or more or an ionomer of the copolymer.Type: ApplicationFiled: July 28, 2011Publication date: May 23, 2013Applicant: DUPONT-MITSUI POLYCHEMICALS CO., LTDInventors: Masataka Aoyama, Atsushi Morimoto, Chikara Ichinoseki, Yoshitaka Hironaka
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Publication number: 20100317802Abstract: A tacky resin composition which has proper initial tackiness, is sufficiently inhibited from rising in tackiness with time, can keep tackiness at a proper range even when it receives a slight heat history or is stored for a long time, has very small dependence on peeling speed, and can provide high transparency to a pressure-sensitive adhesive film or sheet as required, and a pressure-sensitive adhesive film or sheet for the surface protection of an article, which is obtained form the tacky resin composition. The tacky resin composition comprises (A) 5 to 80 parts by weight of an olefin polymer (component A), (B) 5 to 80 parts by weight of an ethylene/unsaturated ester copolymer (component B) and (C) 1 to 60 parts by weight of a styrene-based elastomer and/or an olefin-based elastomer (component C) based on 100 parts by weight of the total of the components A, B and C.Type: ApplicationFiled: January 28, 2009Publication date: December 16, 2010Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTD.Inventors: Masataka Aoyama, Yoshitaka Hironaka, Hisao Gonohe
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Publication number: 20100255302Abstract: [Problem] To provide an adhesive film or sheet for protecting the surfaces of articles having proper initial adhesive force, sufficiently suppressing an increase in the adhesive force after aged, maintaining a suitable adhesive force in a proper range despite of being subjected to thermal hysteresis to some extent or even after preserved for extended periods of time and, as desired, being capable of imparting a high degree of transparency to the adhesive film or sheet. [Means for Solution] An adhesive film or sheet comprising a mixed resin of an ethylene/unsaturated ester copolymer resin (A) and a highly crystalline ethylene or propylene polymer or copolymer resin (B) having a melting point of not lower than 115° C.Type: ApplicationFiled: October 29, 2008Publication date: October 7, 2010Applicant: DU PONT-MITSUI POLYCHEMICALS CO., LTDInventors: Masataka Aoyama, Yoshitaka Hironaka, Hisao Gonohe
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Patent number: 6667358Abstract: An olefin-type flame-retardant resin composition having excellent mechanical strength, abrasion resistance and workability, and exhibiting excellent flame-retardant properties and shell-forming properties when it has burned, despite the resin composition is blended with an inorganic compound. The composition contains 25 to 250 parts by weight of (D) a flame-retardant inorganic compound per 100 parts by weight of a base resin composition containing 95 to 5% by weight of (A) a copolymer of an ethylene and a vinyl acetate or other polar group-containing monomer, (B) 5 to 95% by weight of a copolymer of an olefin and an unsaturated carboxylic acid ester or other polar group-containing monomer, and 0 to 49% by weight of (C) a thermoplastic resin other than the above copolymers.Type: GrantFiled: January 17, 2001Date of Patent: December 23, 2003Assignee: DuPont-Mitsui Polychemicals Co.Inventor: Masataka Aoyama
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Patent number: 6086176Abstract: In a cabinet of a type in which drawers received in a box-shaped case can be pulled out through both end openings of the case, an arrangement is provided which makes it possible to retain each drawer in a position in which it is neatly received in the case. The case has a drawer receiving space having openings at both ends of the case. The drawer received in the drawer receiving space is supported so as to be slidable outwardly through either end opening. A positioning device is provided between the underside of the drawer and the opposing surface of a drawer support member so as to retain the drawer when pushed into the drawer receiving space so that the cabinet always looks in order.Type: GrantFiled: December 22, 1998Date of Patent: July 11, 2000Assignee: Kyoyei Kikaku Inc.Inventor: Masataka Aoyama