Patents by Inventor Yuuki Sato
Yuuki 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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Publication number: 20230340263Abstract: A polyimide resin composition having a polyimide resin (A) and a polyether sulfone resin (B), wherein the polyimide resin (A) comprises a repeating structural unit of formula (1) and a repeating structural unit of formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and a mass ratio of the component (A) to the component (B), [(A)/(B)], is 0.1/99.9 to 65/35; and a molded article containing the same: where R1 represents a divalent group of 6 to 22 carbon atoms with an alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group of 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group of 6 to 22 carbon atoms and having an aromatic ring.Type: ApplicationFiled: September 10, 2021Publication date: October 26, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO, Takuya FUKUSHIMA
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Publication number: 20230257515Abstract: A resin composition containing a liquid crystal polymer (A) and a predetermined polyimide resin (B), wherein the liquid crystal polymer (A) contains at least one repeating structural unit selected from the group consisting of repeating structural units represented by the following formulas (I) to (IV), and a molded article containing the same: wherein a, b, and c represent an average number of repeating structural units.Type: ApplicationFiled: June 22, 2021Publication date: August 17, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20230076244Abstract: A polyimide resin composition containing a polyimide resin (A) and a polyetherimide sulfone resin (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), and a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %; and a molded article containing the same. (R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.Type: ApplicationFiled: November 30, 2020Publication date: March 9, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20230066520Abstract: A method for producing a fiber-reinforced composite material containing a polyimide resin (A) having a predetermined repeating unit and a continuous reinforcing fiber (B), the method including the following steps (I) and (II) in this order: step (I): a step of laminating at least one polyimide resin (A) layer and at least one continuous reinforcing fiber (B) layer to obtain a laminated product; and step (II): a step of molding the laminated product by heating and pressurizing under a condition where a working parameter X expressed by the following expression (i) is 35 or more and 87 or less: X=(Tp?Tm)3×P1/2/1000??(i) wherein in the expression (i), Tp represents a temperature (° C.) during the molding, Tm represents a melting point (° C.) of the polyimide resin (A), and P represents a press pressure (MPa) during the molding.Type: ApplicationFiled: April 14, 2021Publication date: March 2, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yuuki SATO, Kousuke IKEUCHI, Nobuhiko MATSUMOTO
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Publication number: 20220403169Abstract: A resin composition containing a polyimide resin particle (A) and at least one selected from the group consisting of a thermoplastic resin (B) and a thermosetting resin (C), wherein the polyimide resin particle (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the polyimide resin particle (A) has a volume average particle size D50 of 5 to 200 ?m. (R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.Type: ApplicationFiled: November 17, 2020Publication date: December 22, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO, Naoki KANEKO
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Publication number: 20220332916Abstract: A flame-retardant polyimide molding material containing a semi-aromatic polyimide resin (A) and further containing 15 to 80 mass % of either of the following component (B1) or component (B2): (B1) graphite (B2) a combination of two or more selected from the group consisting of graphite, a fluorine resin, and carbon fiber; and a molded article including the same.Type: ApplicationFiled: June 22, 2020Publication date: October 20, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20220289975Abstract: A polyimide resin composition containing a polyimide resin (A) and a fluororesin (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the fluororesin (B) has a weight loss percentage measured using a differential scanning calorimeter after heating from 100° C. to 450° C. at a heating rate of 10° C.Type: ApplicationFiled: June 22, 2020Publication date: September 15, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20220213269Abstract: A polyimide resin composition includes a polyimide resin (A) including a repeating structural units of formulas (1) and (2). The content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural units of the formulas (1) and (2) is 20 to 70 mol %. The polyimide resin composition further includes a fatty acid metal salt (B) including a fatty acid having 12 to 36 carbon atoms and optionally having a hydroxy group and at least one of an alkali metal, an alkaline earth metal, and a transition metal: wherein R1 represents a divalent group having 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having 6 to 22 carbon atoms containing at least one aromatic ring.Type: ApplicationFiled: May 7, 2020Publication date: July 7, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO, Fumihiro FUKUDA
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Publication number: 20220203651Abstract: To provide a multilayered body with high adhesion between a resin layer containing a nanofiber or the like and a metal layer, and a method for manufacturing a multilayered body. The multilayered body contains: a metal layer having an uneven region with an average length (RSm) of a contour curve element from 0.5 to 10 ?m; and a resin layer in contact with the uneven region of the metal layer, the resin layer containing a thermoplastic resin and a fibrous filler, the fibrous filler having a number average fiber diameter (F) of less than 1 ?m, and a ratio (RSm/F) of the average length (RSm) of the contour curve element of the uneven region to the number average fiber diameter (F) from 1 to 20000.Type: ApplicationFiled: March 4, 2020Publication date: June 30, 2022Inventors: Nobuhiko MATSUMOTO, Jin NAKAMURA, Yuuki SATO, Atsushi SAKAI
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Publication number: 20220145010Abstract: A polyimide resin composition containing a polyimide resin (A) and a nanocarbon material (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), and a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %: wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic group.Type: ApplicationFiled: February 13, 2020Publication date: May 12, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20220135742Abstract: A flame-retardant polyimide molding material and a molded article including the flame-retardant polyimide molding material, where the flame-retardant polyimide molding material includes a semi-aromatic polyimide resin (A) and carbon fiber (B), and the flame-retardant polyimide molding material includes 15 to 80 mass % of the carbon fiber (B).Type: ApplicationFiled: February 25, 2020Publication date: May 5, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO, Naoki KANEKO
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Publication number: 20220056214Abstract: A polyimide resin composition containing a polyimide resin (A) and an antioxidant (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the antioxidant (B) contains one or more copper compounds (B1) selected from the group consisting of copper fluoride, copper bromide, copper iodide, and copper carboxylates, or a cerium-containing compound (B2); wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containinType: ApplicationFiled: March 5, 2020Publication date: February 24, 2022Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20210261756Abstract: Provided is a polyimide powder composition containing a thermoplastic polyimide resin powder (A) and silica particles (B) having a volume average particle size D50 of 90 nm or less.Type: ApplicationFiled: May 8, 2019Publication date: August 26, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20210253856Abstract: A polyimide resin composition containing a polyimide resin (A) and a phosphinic acid metal salt-based flame retardant (B), the polyimide resin (A) containing repeating structural units of formulae (1) and (2): wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring, and a content ratio of the repeating structural unit of formula (1) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) is 20 to 70 mol %.Type: ApplicationFiled: May 8, 2019Publication date: August 19, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Patent number: 11092496Abstract: Provided is a temperature sensor allowing a wire, which is an additional element, to be efficiently connected to the temperature sensor. The temperature includes the additional element and a temperature detecting element. The temperature detecting element includes a heat-sensitive body, a sensor element, and a protective tube. The sensor element has a pair of first electric wires which are electrically connected to the heat-sensitive body. The protective tube accommodates the sensor element. The additional element includes a terminal and a second electric wire that is electrically connected to the terminal. The terminal is responsible for electrical connection between the additional element and the protective tube, and for assembly where the additional element is mated with the protective tube. The terminal in the present invention has a passage which allows the first electric wires to pass therethrough.Type: GrantFiled: September 30, 2019Date of Patent: August 17, 2021Assignee: SHIBAURA ELECTRONICS CO., LTD.Inventors: Masaki Taira, Yuuki Sato, Kazuaki Yano
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Publication number: 20210230370Abstract: A resin molded article having a microphase-separated structure, the resin molded article containing a polyimide resin (A) and a polyether ketone resin (B), the polyimide resin (A) containing repeating structural units of formulae (1) and (2): wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring, a content ratio of the repeating structural unit of formula (1) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) is 20 to 70 mol %, and a weight average molecular weight Mw is 40,000 to 150,000.Type: ApplicationFiled: May 8, 2019Publication date: July 29, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Atsushi SAKAI, Yuuki SATO
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Publication number: 20210139701Abstract: A polyimide resin composition obtained by blending a polyimide resin (A) and glass fiber (B), the polyimide resin (A) containing a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) being 20 to 70 mol %, wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.Type: ApplicationFiled: May 8, 2019Publication date: May 13, 2021Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yuuki SATO, Atsushi SAKAI
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Publication number: 20200264052Abstract: Provided is a temperature sensor allowing a wire, which is an additional element, to be efficiently connected to the temperature sensor. The temperature includes the additional element and a temperature detecting element. The temperature detecting element includes a heat-sensitive body, a sensor element, and a protective tube. The sensor element has a pair of first electric wires which are electrically connected to the heat-sensitive body. The protective tube accommodates the sensor element. The additional element includes a terminal and a second electric wire that is electrically connected to the terminal. The terminal is responsible for electrical connection between the additional element and the protective tube, and for assembly where the additional element is mated with the protective tube. The terminal in the present invention has a passage which allows the first electric wires to pass therethrough.Type: ApplicationFiled: September 30, 2019Publication date: August 20, 2020Inventors: Masaki Taira, Yuuki Sato, Kazuaki Yano
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Patent number: 10647675Abstract: Provided is a compound showing excellent Antifungal activity against Trichophyton fungus, which is a major causative microorganism of superficial mycosis, and high effectiveness on diseases caused by Trichophyton fungi. A biaryl derivative represented by the formula (I) or a salt thereof: wherein ring A is an optionally substituted phenyl, or an optionally substituted 5- or 6-membered ring heteroaryl (ring A may be further condensed to form an optionally substituted fused ring); Q is CH2, C?O, NH, O, S or the like; X1, X2 and X3 are CR1 or N; Y is CH or N; Z is CR2b or N; R2a and R2b are each a hydrogen atom, a halogen atom, an optionally substituted C1-C6 alkyl group, a C1-C6 haloalkyl group or the like; R2a and R2b may form, together with carbon atoms bonded thereto, an optionally substituted carbocycle, or an optionally substituted heterocycle.Type: GrantFiled: September 14, 2016Date of Patent: May 12, 2020Assignee: KAKEN PHARMACEUTICAL CO., LTD.Inventors: Atsushi Watanabe, Yuuki Sato, Keiji Ogura, Yoshiyuki Tatsumi
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Publication number: 20190055199Abstract: Provided is a compound showing excellent Antifungal activity against Trichophyton fungus, which is a major causative microorganism of superficial mycosis, and high effectiveness on diseases caused by Trichophyton fungi. A biaryl derivative represented by the formula (I) or a salt thereof: wherein ring A is an optionally substituted phenyl, or an optionally substituted 5- or 6-membered ring heteroaryl (ring A may be further condensed to form an optionally substituted fused ring); Q is CH2, C?O, NH, O, S or the like; X1, X2 and X3 are CR1 or N; Y is CH or N; Z is CR2b or N; R2a and R2b are each a hydrogen atom, a halogen atom, an optionally substituted C1-C6 alkyl group, a C1-C6 haloalkyl group or the like; R2a and R2b may form, together with carbon atoms bonded thereto, an optionally substituted carbocycle, or an optionally substituted heterocycle.Type: ApplicationFiled: September 14, 2016Publication date: February 21, 2019Applicant: KAKEN PHARMACEUTICAL CO., LTD.Inventors: Atsushi WATANABE, Yuuki SATO, Keiji OGURA, Yoshiyuki TATSUMI