Patents by Inventor Jun Sakata
Jun Sakata 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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Publication number: 20240072176Abstract: A semiconductor device which includes a thin film transistor having an oxide semiconductor layer and excellent electrical characteristics is provided. Further, a method for manufacturing a semiconductor device in which plural kinds of thin film transistors of different structures are formed over one substrate to form plural kinds of circuits and in which the number of steps is not greatly increased is provided. After a metal thin film is formed over an insulating surface, an oxide semiconductor layer is formed thereover. Then, oxidation treatment such as heat treatment is performed to oxidize the metal thin film partly or entirely. Further, structures of thin film transistors are different between a circuit in which emphasis is placed on the speed of operation, such as a logic circuit, and a matrix circuit.Type: ApplicationFiled: November 8, 2023Publication date: February 29, 2024Inventors: Shunpei YAMAZAKI, Junichiro SAKATA, Jun KOYAMA
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Patent number: 10066337Abstract: An object of the present invention is to provide a fiber treatment agent that is capable of forming on fibers a film that has excellent water resistance and excellent adhesion to a matrix resin. The present invention provides a fiber treatment agent comprising an aqueous medium, a water-insoluble polyamide dispersed in the aqueous medium, and a water-soluble polyamide that is present in an amount of 2 to 50 parts by mass per 100 parts by mass of the water-insoluble polyamide.Type: GrantFiled: March 6, 2014Date of Patent: September 4, 2018Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Jun Sakata, Taiji Matsukawa, Hirotsugu Kawata
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Patent number: 9695298Abstract: A chlorosulfonated polyethylene latex, which is safe for living bodies and the environment and can be used as a latex component in a resorcin-formalin-latex adhesive, contains an aqueous dispersion medium, chlorosulfonated polyethylene, and an emulsifying agent of a polyoxyalkylene alkyl ether sulfate of formula (I) below and a fatty acid salt. The latex is excellent in standing stability and mechanical stability. In formula (I), R1, R2, n, and M represent an alkyl group of 6 to 20 carbon atoms, hydrogen or a methyl group, an integer of 2 to 40, and an alkali metal, respectively.Type: GrantFiled: April 2, 2012Date of Patent: July 4, 2017Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Jun Sakata, Hiromasa Miyazaki, Taiji Matsukawa
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Publication number: 20160032520Abstract: An object of the present invention is to provide a fiber treatment agent that is capable of forming on fibers a film that has excellent water resistance and excellent adhesion to a matrix resin. The present invention provides a fiber treatment agent comprising an aqueous medium, a water-insoluble polyamide dispersed in the aqueous medium, and a water-soluble polyamide that is present in an amount of 2 to 50 parts by mass per 100 parts by mass of the water-insoluble polyamide.Type: ApplicationFiled: March 6, 2014Publication date: February 4, 2016Inventors: Jun SAKATA, Taiji MATSUKAWA, Hirotsugu KAWATA
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Patent number: 9234097Abstract: An aqueous dispersion of polyamide rubber elastic body, which contains an aqueous medium and a polyamide rubber elastic body emulsified and dispersed in the aqueous medium in the presence of a surfactant. The surfactant is used in an amount of 1 to 20 parts by weight based on 100 parts by weight of the polyamide rubber elastic body, and is for example at least one member selected from the group consisting of a polyoxyalkylene alkyl ether sulfate, a dialkyl sulfosuccinate, a fatty acid salt and an ethylene oxide/propylene oxide copolymer. This aqueous dispersion can produce a molded article having the characteristics of the polyamide rubber elastic body, particularly a molded article which hardly suffers from bleeding of the surfactant and is excellent in transparency.Type: GrantFiled: February 5, 2013Date of Patent: January 12, 2016Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Norihiro Sugihara, Jun Sakata, Hirofumi Fujita
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Patent number: 8957150Abstract: The present invention provides an aqueous dispersion comprising a polyamide-based rubber-like elastomer emulsified and dispersed therein, wherein 0.8 to 10 parts by weight of a copolymer of ethylene with an ethylenically unsaturated carboxylic acid, relative to 100 parts by weight of the polyamide-based rubber-like elastomer is contained. The aqueous dispersion of the present invention is a novel aqueous dispersion of polyamide-based rubber-like elastomer that is excellent in storage stability at low temperatures, and that can provide processed products excellent in flexibility and heat resistance when used as a coating material.Type: GrantFiled: May 18, 2012Date of Patent: February 17, 2015Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Hiromasa Miyazaki, Taiji Matsukawa
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Publication number: 20140221551Abstract: The present invention provides an aqueous dispersion comprising a polyamide-based rubber-like elastomer emulsified and dispersed therein, wherein 0.8 to 10 parts by weight of a copolymer of ethylene with an ethylenically unsaturated carboxylic acid, relative to 100 parts by weight of the polyamide-based rubber-like elastomer is contained. The aqueous dispersion of the present invention is a novel aqueous dispersion of polyamide-based rubber-like elastomer that is excellent in storage stability at low temperatures, and that can provide processed products excellent in flexibility and heat resistance when used as a coating material.Type: ApplicationFiled: May 18, 2012Publication date: August 7, 2014Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Jun Sakata, Hiromasa Miyazaki, Taiji Matsukawa
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Publication number: 20140031464Abstract: A chlorosulfonated polyethylene latex, which is safe for living bodies and the environment and can be used as a latex component in a resorcin-formalin-latex adhesive, contains an aqueous dispersion medium, chlorosulfonated polyethylene, and an emulsifying agent of a polyoxyalkylene alkyl ether sulfate of formula (I) below and a fatty acid salt. The latex is excellent in standing stability and mechanical stability. In formula (I), R1, R2, n, and M represent an alkyl group of 6 to 20 carbon atoms, hydrogen or a methyl group, an integer of 2 to 40, and an alkali metal, respectively.Type: ApplicationFiled: April 2, 2012Publication date: January 30, 2014Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Jun Sakata, Hiromasa Miyazaki, Taiji Matsukawa
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Publication number: 20130018349Abstract: A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin is sandwiched with a hydrophilic nonwoven fabric from an upper side and a lower side of the absorbent layer, characterized in that at least one side of a topside and an underside of the water-absorbent sheet structure is subjected to embossing, and that the water-absorbent sheet structure has the following properties: when a saline solution is allowed to be absorbed in an amount of 4 L per 1 m2 of the water-absorbent sheet structure (4 L/m2), the water-absorbent sheet structure satisfies both of the following relationships of (A) and (B): (A) an expansion thickness ratio, i.e. T2/T1, of 2 or more, and (B) an expansion embossing depth, i.e. (T2?t2)/T2, of 0.Type: ApplicationFiled: March 10, 2011Publication date: January 17, 2013Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Junichi Takatori, Hideki Matsushita, Jun Sakata, Haruka Inaba
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Publication number: 20120029456Abstract: A water-absorbent sheet comprising a structure comprising at least an absorbent layer containing a water-absorbent resin, sandwiched between two or more sheets of a hydrophilic nonwoven fabric, wherein the water-absorbent sheet is subjected to wavy embossing 2 and linear embossing 4, wherein a branched structure formed by the wavy embossing 2 and the linear embossing 4 has an approximate Y-shape-form, and wherein the edge portion contouring along the longitudinal direction of the water-absorbent sheet 1 comprises non-embossing regions W2 and W2?, and further wherein an areal percentage of embossment provided on the water-absorbent sheet 1 is from 3 to 25% of an entire area of the water-absorbent sheet 1.Type: ApplicationFiled: March 25, 2010Publication date: February 2, 2012Applicant: Sumitomo Seika Chemicals Co., Ltd.Inventors: Junichi Takatori, Jun Sakata, Haruka Inaba, Hideki Matsushita
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Publication number: 20100234499Abstract: An aqueous dispersion of polyamide rubber elastic body, which contains an aqueous medium and a polyamide rubber elastic body emulsified and dispersed in the aqueous medium in the presence of a surfactant. The surfactant is used in an amount of 1 to 20 parts by weight based on 100 parts by weight of the polyamide rubber elastic body, and is for example at least one member selected from the group consisting of a polyoxyalkylene alkyl ether sulfate, a dialkyl sulfosuccinate, a fatty acid salt and an ethylene oxide/propylene oxide copolymer. This aqueous dispersion can produce a molded article having the characteristics of the polyamide rubber elastic body, particularly a molded article which hardly suffers from bleeding of the surfactant and is excellent in transparency.Type: ApplicationFiled: July 10, 2007Publication date: September 16, 2010Inventors: Norihiro Sugihara, Jun Sakata, Hirofumi Fujita
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Patent number: 7113653Abstract: The present invention provides a registration correction method for image processing, by which location deviations among images with different behaviors such as visible ray images and invisible ray images can be corrected. According to this method, one of a visible ray image and an invisible ray image is designated as a reference image, and the other as an object image. A reference window is set within the reference image, and an object window of the same size as the reference window is set within the object image. While the object window is shifted by the pixel within the object image, the differential values of the brightness in the x-axis and y-axis directions of each pixel in the reference window and the object window are obtained. The object point where the total of the squares or the absolute values of the differences between the differential values of the reference window and the object window becomes smallest is set as the point corresponding to the reference point of the reference window.Type: GrantFiled: January 28, 2003Date of Patent: September 26, 2006Assignee: Electric Power Development Co., Ltd.Inventors: Megumu Kuroiwa, Jong Hwan Kim, Norikazu Matsumoto, Jun Sakata, Kazumoto Onodera, Takakazu Ishimatsu, Byungdug Jun, Kazuichi Sugiyama, Eung Nam Kim
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Publication number: 20030156186Abstract: The present invention provides a registration correction method for image processing, by which location deviations among images with different behaviors such as visible ray images and invisible ray images can be corrected. According to this method, one of a visible ray image and an invisible ray image is designated as a reference image, and the other as an object image. A reference window is set within the reference image, and an object window of the same size as the reference window is set within the object image. While the object window is shifted by the pixel within the object image, the differential values of the brightness in the x-axis and y-axis directions of each pixel in the reference window and the object window are obtained. The object point where the total of the squares or the absolute values of the differences between the differential values of the reference window and the object window becomes smallest is set as the point corresponding to the reference point of the reference window.Type: ApplicationFiled: January 28, 2003Publication date: August 21, 2003Applicant: PECK CO., LTD.Inventors: Megumu Kuroiwa, Jong Hwan Kim, Norikazu Matsumoto, Jun Sakata, Kazumoto Onodera, Takakazu Ishimatsu, Byungdug Jun, Kazuichi Sugiyama, Eung Nam Kim
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Patent number: 5353884Abstract: The present invention relates to a positioning device capable of positioning a member in any direction with a high degree of resolution by using a hollow type harmonic drive mechanism, and to a drilling-direction control device for a drilling system utilizing the positioning device. The device of the present invention is mainly constituted by a double eccentric mechanism section (10). A first annular member (12) is rotatably supported by a circular inner circumferential surface (11a) of the cylindrical member (11) of this mechanism section, and a second annular member (13) is rotatably supported by a circular inner circumferential surface (11b) of the first annular member.Type: GrantFiled: November 29, 1993Date of Patent: October 11, 1994Assignees: Harmonic Drive Systems, Inc, Sumitomo Metal Industries, Ltd.Inventors: Toshiaki Misawa, Yoshihide Kiyosawa, Jun Sakata, Akio Ikeda
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Patent number: D652508Type: GrantFiled: February 4, 2010Date of Patent: January 17, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome
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Patent number: D659238Type: GrantFiled: October 26, 2011Date of Patent: May 8, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome
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Patent number: D659239Type: GrantFiled: October 26, 2011Date of Patent: May 8, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome
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Patent number: D659240Type: GrantFiled: October 26, 2011Date of Patent: May 8, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome
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Patent number: D659241Type: GrantFiled: October 26, 2011Date of Patent: May 8, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome
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Patent number: D659242Type: GrantFiled: October 26, 2011Date of Patent: May 8, 2012Assignee: Sumitomo Seika Chemicals Co., Ltd.Inventors: Jun Sakata, Junichi Takatori, Shinya Fukudome