Patents by Inventor Hiromasa Sato
Hiromasa Sato 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: 12264217Abstract: The present invention provides a surface treatment film that is capable of imparting durability such as wear resistance, friction resistance, chemical resistance, heat resistance, and solvent resistance to the surfaces of various substrates, and that exhibits excellent adhesion to the surfaces of the substrates. The surface treatment film is provided on the surface of a substrate. The surface treatment film has a laminated structure that includes a polymer layer (i) disposed on the surface side of the substrate and a polymer layer (ii) disposed on the polymer layer (i). The polymer layer (i) contains a first polymer derived from a polymerization initiation group-containing polymer, such as a polyester having, in a side chain, a functional group represented by formula (1) wherein R1 represents a hydrogen atom, a methyl group, or the like, R2 represents a methyl group or the like, X represents a chlorine atom or the like, Y represents O or NH, and * shows a bonding position.Type: GrantFiled: August 3, 2021Date of Patent: April 1, 2025Assignees: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., KYOTO UNIVERSITYInventors: Hiroyuki Shimanaka, Yoichi Tagi, Hiromasa Sato, Miho Tanishima, Yoshinobu Tsujii, Keita Sakakibara
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Publication number: 20230348654Abstract: The present invention provides a surface treatment film that is capable of imparting durability such as wear resistance, friction resistance, chemical resistance, heat resistance, and solvent resistance to the surfaces of various substrates, and that exhibits excellent adhesion to the surfaces of the substrates. The surface treatment film is provided on the surface of a substrate. The surface treatment film has a laminated structure that includes a polymer layer (i) disposed on the surface side of the substrate and a polymer layer (ii) disposed on the polymer layer (i). The polymer layer (i) contains a first polymer derived from a polymerization initiation group-containing polymer, such as a polyester having, in a side chain, a functional group represented by formula (1) wherein R1 represents a hydrogen atom, a methyl group, or the like, R2 represents a methyl group or the like, X represents a chlorine atom or the like, Y represents O or NH, and * shows a bonding position.Type: ApplicationFiled: August 3, 2021Publication date: November 2, 2023Inventors: Hiroyuki SHIMANAKA, Yoichi TAGI, Hiromasa SATO, Miho TANISHIMA, Yoshinobu TSUJII, Keita SAKAKIBARA
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Publication number: 20220403097Abstract: The present invention provides nanometer-sized fibers that are produced by an electrospinning method with use of a spinning solution for electrospinning, said spinning solution being environmentally friendly and taking the effects of an organic solvent on the human body into consideration.Type: ApplicationFiled: November 6, 2020Publication date: December 22, 2022Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG.CO.,LTD., SHINSHU UNIVERSITYInventors: Daisuke NODA, Shinji IRIFUNE, Masaki TANAKA, Hiromasa SATO, Motoaki UMEZU, Toshihisa TANAKA, Keishiro ONO, Kaisuke NISHIBU
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Publication number: 20220169779Abstract: A material for medical use, which contains nanofibers that are formed from a resin containing a silicone-modified polyurethane resin, and which is characterized in that: the silicone-modified polyurethane resin is a reaction product of (A) a long-chain polyol that has a number average molecular weight of 500 or more, (B) a short-chain polyol that has a number average molecular weight of less than 500, (C) an active hydrogen group-containing organopolysiloxane and (D) a polyisocyanate; and the average fiber diameter thereof is less than 2,000 nm. This material for medical use exhibits excellent performance in a biological test.Type: ApplicationFiled: February 18, 2020Publication date: June 2, 2022Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Daisuke NODA, Shinji IRIFUNE, Masaki TANAKA, Hiromasa SATO, Motoaki UMEZU, Shota IINO, Toshihisa TANAKA, Chuan Yin
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Patent number: 11174335Abstract: Disclosed herein is a fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group at only one terminal.Type: GrantFiled: March 31, 2017Date of Patent: November 16, 2021Assignees: SHIN-ETSU CHEMICAL CO., LTD., DAINCHISEIK COLOR & CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko Hattori, Masaki Tanaka, Hiromasa Sato, Shota Iino, Motoaki Umezu, Toshihisa Tanaka, Mikihisa Kondo
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Publication number: 20210115278Abstract: Provided are: a polyurethane resin having a high degree of biomass, the polyurethane resin useful as a binder for a printing exhibiting excellent adhesion performance particularly to biomass plastic base materials and having excellent dispersibility of a pigment contained at a high concentration; and a printing ink using the polyurethane resin.Type: ApplicationFiled: April 24, 2018Publication date: April 22, 2021Inventors: Iwao MISAIZU, Hiromasa SATO, Motoaki UMEZU, Hiroki GOTO, Tomoyuki NATSUI
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Publication number: 20210041656Abstract: An optical element includes: an optical function part; a flange disposed outside the optical function part; and a direction indication part in a part of the flange. A difference in level between the direction indication part and a flat surface of the flange is 2 ?m or less. The optical function part and a part of the flange may be covered with an antireflection film.Type: ApplicationFiled: October 22, 2020Publication date: February 11, 2021Applicant: AGC Inc.Inventors: Koji MIYASAKA, Hiromasa SATO
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Publication number: 20190071534Abstract: A fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group at only one terminal.Type: ApplicationFiled: March 31, 2017Publication date: March 7, 2019Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko HATTORI, Masaki TANAKA, Hiromasa SATO, Shota IINO, Motoaki UMEZU, Toshihisa TANAKA, Mikihisa KONDO
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Publication number: 20180086874Abstract: Provided is a fiber formed from a resin containing a silicone-modified polyurethane resin. With the present invention, a characteristic fiber having excellent flexibility, slipping ability, blocking resistance, heat retaining property, water vapor permeability, water repellency, and spinnability can be provided.Type: ApplicationFiled: March 29, 2016Publication date: March 29, 2018Applicants: SHIN-ETSU CHEMICAL CO., LTD., DAINICHISEIKA COLOR&CHEMICALS MFG. CO., LTD., SHINSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Hatsuhiko HATTORI, Yoshinori YONEDA, Masaki TANAKA, Yoshitaka KOSHIRO, Hiromasa SATO, Shota IINO, Motoaki UMEZU, Toshihisa TANAKA, Hiroko IDE, Rino OKAMOTO
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Patent number: 9570245Abstract: Provided are a method for producing an electrode material for a vacuum circuit breaker, whereby withstand voltage, high current interruption performance and capacitor switching performance can be improved; an electrode material for a vacuum circuit breaker; and an electrode for a vacuum circuit breaker. A contact material for an electrode for a vacuum circuit breaker has an integral structure consisting of a central member and a Cu—Cr outer peripheral member, the central member having been produced as described above and comprising 30 to 50 wt % of Cu of a particle diameter of 20 to 150 ?m and 50 to 70 wt % of Mo—Cr of a particle diameter of 1 to 5 ?m, while the outer peripheral member being formed of a material, which is highly compatible with the central member, shows excellent interruption performance and had high withstand voltage, and being provided outside the central member and fixed thereto.Type: GrantFiled: March 17, 2015Date of Patent: February 14, 2017Assignee: Meidensha CorporationInventors: Yasushi Noda, Hiromasa Sato
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Patent number: 9281136Abstract: The electrode material for a vacuum circuit breaker is produced by a method comprising a mixing step, a press sintering step, and a Cu infiltration step. In the mixing step, an Mo powder having a particle diameter of 0.8 to 6 ?m is homogeneously mixed with a thermite Cr powder having a particle diameter of 40 to 300 ?m in such a manner as giving a mixing ratio (Mo:Cr) of 1:1 to 9:1 and satisfying the weight relation Mo?Cr. In the press sintering step, the resultant mixture is pressure molded under a press pressure of 1 to 4 t/cm2 to give a molded article. Next, said molded article is sintered by maintaining the same at a temperature of 1100 to 1200° C. for 1 to 2 hours in an heating furnace to give a partially sintered article. In the Cu infiltration step, a thin Cu plate is placed on said partially sintered article and maintained at a temperature of 1100 to 1200° C. for 1-2 hours in a heating furnace so that Cu is liquid-phase sintered and infiltrated into the partially sintered article.Type: GrantFiled: June 20, 2011Date of Patent: March 8, 2016Assignee: Meidensha CorporationInventors: Yasushi Noda, Hiromasa Sato
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Publication number: 20150200059Abstract: Provided are; a method for producing an electrode material for a vacuum circuit breaker, whereby withstand voltage, high current interruption performance and capacitor switching performance can be improved; an electrode material for a vacuum circuit breaker; and an electrode for a vacuum circuit breaker. The electrode material for a vacuum circuit breaker is produced by a method comprising a mixing step, a press sintering step, and a Cu infiltration step. In the mixing step, an Mo powder having a particle diameter of 0.8 to 6 ?m is homogeneously mixed with a thermite Cr powder having a particle diameter of 40 to 300 ?m in such a manner as giving a mixing ratio (Mo:Cr) of 1:1 to 9:1 and satisfying the weight relation Mo?Cr. In the press sintering step, the resultant mixture is pressure molded under a press pressure of 1 to 4 t/cm2 to give a molded article. Next, said molded article is sintered by maintaining the same at a temperature of 1100 to 1200° C.Type: ApplicationFiled: March 17, 2015Publication date: July 16, 2015Inventors: Yasushi NODA, Hiromasa SATO
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Publication number: 20130199905Abstract: Provided are: a method for producing an electrode material for a vacuum circuit breaker, whereby withstand voltage, high current interruption performance and capacitor switching performance can be improved; an electrode material for a vacuum circuit breaker; and an electrode for a vacuum circuit breaker. The electrode material for a vacuum circuit breaker is produced by a method comprising a mixing step, a press sintering step, and a Cu infiltration step. In the mixing step, an Mo powder having a particle diameter of 0.8 to 6 ?m is homogeneously mixed with a thermite Cr powder having a particle diameter of 40 to 300 gm in such a manner as giving a mixing ratio (Mo:Cr) of 1:1 to 9:1 and satisfying the weight relation Mo?Cr. In the press sintering step, the resultant mixture is pressure molded under a press pressure of 1 to 4 t/cm2 to give a molded article. Next, said molded article is sintered by maintaining the same at a temperature of 1100 to 1200° C.Type: ApplicationFiled: June 20, 2011Publication date: August 8, 2013Applicant: Meiden T & D CorporationInventors: Yasushi Noda, Hiromasa Sato
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Patent number: 8440112Abstract: Atomized Cu—Cr alloy powder, 20 to 30 percent by weight of Thermite Cr powder and 5 percent by weight of electrolytic Cu powder are mixed together and undergo solid phase sintering treatment to form an electrode material for vacuum circuit breakers. The gross content of Cr of the electrode material is 30 to 50 percent by weight. In manufacturing the electrode material for vacuum circuit breakers, such powders are mixed together and then undergo compression molding to be formed into a compressed compact. The compressed compact is performed solid phase sintering at a temperature lower than the melting point of Cu in a non-oxidizing atmosphere to prepare a solid phase sintered body.Type: GrantFiled: October 2, 2009Date of Patent: May 14, 2013Assignee: Meiden T&D CorporationInventors: Yasushi Noda, Hiromasa Sato
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Patent number: 8437238Abstract: There is provided a diffraction grating including a convex portion and a concave portion which are used for lights having different wavelengths ?1, ?2 and ?3 and are alternately disposed on at least one surface of a substrate with a predetermined pitch. An average refractive index of the convex portion is smaller than an average refractive index of the concave portion. A phase difference in the lights having the wavelength ?1 which transmit the convex portion and the concave portion and a phase difference in the lights having the wavelength ?2 which transmit the convex portion and the concave portion are both substantially the integral multiple of 2?, and a phase difference in the lights having the wavelength ?3 which transmit the convex portion and the concave portion is substantially the non-integral multiple of 2?.Type: GrantFiled: July 24, 2012Date of Patent: May 7, 2013Assignee: Asahi Glass Company, LimitedInventors: Koji Miyasaka, Hiromasa Sato
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Publication number: 20120287767Abstract: There is provided a diffraction grating including a convex portion and a concave portion which are used for lights having different wavelengths ?1, ?2 and ?3 and are alternately disposed on at least one surface of a substrate with a predetermined pitch. An average refractive index of the convex portion is smaller than an average refractive index of the concave portion. A phase difference in the lights having the wavelength ?1 which transmit the convex portion and the concave portion and a phase difference in the lights having the wavelength ?2 which transmit the convex portion and the concave portion are both substantially the integral multiple of 2?, and a phase difference in the lights having the wavelength ?3 which transmit the convex portion and the concave portion is substantially the non-integral multiple of 2?.Type: ApplicationFiled: July 24, 2012Publication date: November 15, 2012Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Koji MIYASAKA, Hiromasa Sato
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Patent number: 8279737Abstract: There is provided a diffraction grating including a convex portion and a concave portion which are used for lights having different wavelengths ?1, ?2 and ?3 and are alternately disposed on at least one surface of a substrate with a predetermined pitch. An average refractive index of the convex portion is smaller than an average refractive index of the concave portion. A phase difference in the lights having the wavelength ?1 which transmit the convex portion and the concave portion and a phase difference in the lights having the wavelength ?2 which transmit the convex portion and the concave portion are both substantially the integral multiple of 2?, and a phase difference in the lights having the wavelength ?3 which transmit the convex portion and the concave portion is substantially the non-integral multiple of 2?.Type: GrantFiled: February 7, 2011Date of Patent: October 2, 2012Assignee: Asahi Glass Company, LimitedInventors: Koji Miyasaka, Hiromasa Sato
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Patent number: 8040782Abstract: In order to provide a wavelength-selective light-shielding element capable of blocking circularly-polarized light beams rotating in a specific direction among light beams whose wavelengths falling in a specific range, a light-shielding region is provided in a portion of a transparent substrate, wherein the light-shielding region permits passage of first circularly-polarized light rotating in a first direction regardless of a wavelength of the first circularly-polarized light and blocks second circularly-polarized light beams whose wavelengths falling within a predetermined range, among second circularly-polarized light beams rotating in the second direction, to thus permit passage of the second circularly-polarized light beams falling outside the predetermined range.Type: GrantFiled: February 17, 2009Date of Patent: October 18, 2011Assignee: Asahi Glass Company, LimitedInventor: Hiromasa Sato
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Patent number: 8040781Abstract: An optical rotating plate has an optical rotating material layer. A phase plate is provided on a first surface side of the optical rotating plate and has at least one birefringent material layer. The first surface side is disposed toward an emitting side of an optical path, thereby giving different phase differences to a first linearly polarized light group containing at least a linearly polarized light having a first wavelength and a second linearly polarized light group containing at least a linearly polarized light having a second wavelength which is different from the first wavelength.Type: GrantFiled: July 2, 2009Date of Patent: October 18, 2011Assignee: Asahi Glass Company, LimitedInventors: Yukihiro Tao, Hiromasa Sato, Atsushi Koyanagi, Koji Miyasaka
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Publication number: 20110204299Abstract: Atomized Cu—Cr alloy powder, 20 to 30 percent by weight of Thermite Cr powder and 5 percent by weight of electrolytic Cu powder are mixed together and undergo solid phase sintering treatment to form an electrode material for vacuum circuit breakers. The gross content of Cr of the electrode material is 30 to 50 percent by weight. In manufacturing the electrode material for vacuum circuit breakers, such powders are mixed together and then undergo compression molding to be formed into a compressed compact. The compressed compact is performed solid phase sintering at a temperature lower than the melting point of Cu in a non-oxidizing atmosphere to prepare a solid phase sintered body.Type: ApplicationFiled: October 2, 2009Publication date: August 25, 2011Applicant: JAPAN AE POWER SYSTEMS CORPORATIONInventors: Yasushi Noda, Hiromasa Sato