Patents by Inventor Jirou HIROISHI
Jirou HIROISHI 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: 20230103477Abstract: A resin reflective film, which containing two or more kinds of regions having different refractive indexes from each other, in which a film thickness of the resin film 20 to 5,000 µm, and a total reflectance is 60% or more and a diffuse reflectance is 60% or more for deep ultraviolet rays having a wavelength of 220 to 300 nm.Type: ApplicationFiled: November 29, 2022Publication date: April 6, 2023Applicants: FURUKAWA ELECTRIC CO., LTD., DAIKIN INDUSTRIES, LTD.Inventors: Yutaka OKITA, Daiki TAKEMURA, Yousuke KOKUBO, Jirou HIROISHI, Takuya ARASE, Tatsuya HIGUCHI, Akinari SUGIYAMA
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Patent number: 11613110Abstract: A laminate, containing two or more polyolefin resin layers, wherein at least one polyolefin resin layer (A) contains a cellulose fiber including a cellulose fiber having a fiber length of 0.3 mm or more dispersed in the layer; a content of the cellulose fiber in the polyolefin resin layer (A) is 1% by mass or more and less than 60% by mass; and wherein a polyolefin resin layer (B) different from the polyolefin resin layer (A) is laminated in contact with the polyolefin resin layer (A).Type: GrantFiled: April 9, 2021Date of Patent: March 28, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Masami Tazuke, Toshihiro Suzuki, Hidekazu Hara, Jirou Hiroishi, Jae Kyung Kim, Masato Ikeuchi, Jiro Sakato
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Patent number: 11597826Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the water absorption ratio satisfies the following Formula: (Water absorption ratio [%])<(Cellulose effective mass ratio [%])2×0.01; a pellet and a formed body using this composite material; and a production method for this composite material.Type: GrantFiled: February 21, 2020Date of Patent: March 7, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu Hara, Jirou Hiroishi, Yuka Sawada, Masami Tazuke, Toshihiro Suzuki
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Patent number: 11466145Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin and a cellulose fiber dispersed in the polyolefin resin, in which the composite material contains the cellulose fiber of 3 mass % or more and less than 70 mass %, and when the composite material is subjected to the abrasion test according to ISO 6722 under the following test conditions, the amount of abrasion after 5,000 reciprocations satisfies the [Formula 1]: (Amount of abrasion [mm] of the cellulose-fiber-dispersing polyolefin resin composite material)<?0.003×(Cellulose effective mass ratio of the cellulose-fiber-dispersing polyolefin resin composite material)+0.3, [Test Conditions for Abrasion Test] Load: 1.7 kg, Needle diameter: ?0.45 mm, Stroke length: 10 mm, Period: 60 reciprocations/min, Test piece: length 38 mm×width 6 mm×thickness 1 mm, Temperature: 23° C.Type: GrantFiled: February 21, 2020Date of Patent: October 11, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Jirou Hiroishi, Hidekazu Hara, Yuka Sawada, Masami Tazuke, Toshihiro Suzuki
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Patent number: 11390724Abstract: A cellulose-fiber dispersion polyethylene resin composite material, formed by dispersing a cellulose fiber into a polyethylene resin, wherein a proportion of the cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and wherein water absorption ratio satisfies the following formula; and a formed body and a pellet using the same, a production method therefor, and a recycling method for a cellulose-fiber adhesion polyethylene thin film piece. (water absorption ratio)<(cellulose effective mass ratio)2×0.01??[Formula].Type: GrantFiled: August 23, 2017Date of Patent: July 19, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Jirou Hiroishi, Hidekazu Hara, Yuka Sawada, Masami Tazuke, Toshihiro Suzuki, Shingo Mitsugi
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Patent number: 11390723Abstract: A cellulose-aluminum-dispersing polyethylene resin composite material, in which a cellulose fiber and aluminum are dispersed into a polyethylene resin, wherein a proportion of the cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin, and the cellulose fiber, and wherein water absorption ratio of the composite material satisfies the following formula: (Water absorption ratio)<(cellulose effective mass ratio)2×0.01;??[Formula]: a pellet and a formed body using the composite material, and a method of producing these.Type: GrantFiled: August 23, 2017Date of Patent: July 19, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu Hara, Yuka Sawada, Jirou Hiroishi, Masami Tazuke, Toshihiro Suzuki, Shingo Mitsugi
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Publication number: 20220162431Abstract: A fiber-dispersed resin composite material, containing fiber dispersed in a resin, wherein the content of the fiber in the fiber-dispersed resin composite material is 1 mass % or more and less than 70 mass %, and wherein when a length-weighted average fiber length and a number-averaged fiber length of the fiber as determined under conditions below are set to LL and LN, respectively, LL and LN satisfy [Expression 1-1] below: <Conditions> LL and LN are determined for a dissolution residue obtained by immersing the fiber-dispersed resin composite material in a solvent miscible with the resin in the composite material, in accordance with Pulps-Determination of fiber length by automated optical analysis as specified by ISO 16065 2001, and 1 . 0 ? 1 < ( L ? L / L ? N ) < 1 . 3 ? 0 .Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jae Kyung KIM, Jiro SAKATO, Jirou HIROISHI, Toshihiro SUZUKI, Masami TAZUKE, Masato IKEUCHI, Kyosuke YAMAZAKI, Kentaro YABUNAKA
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Publication number: 20220162409Abstract: A fiber-dispersed resin composite material, containing fiber dispersed in a resin, wherein the content of the fiber in the fiber-dispersed resin composite material is 1 mass % or more and less than 70 mass %, and wherein the fiber-dispersed resin composite material has a maximum color difference A determined under conditions below of 0.05 or more and 6 or less: <Conditions> L*, a*, and b* values in CIE (L*a*b*) color space are measured on a straight line at 8 points with an interval of 1 cm by using a chromameter, and a color difference ?E1 between measurement points linearly adjacent to each other is calculated by [Expression 1-1] below while a maximum value among 7 calculated values for the resulting color difference ?E1 is set as the maximum color difference A, ? ? E ? 1 = [ ( L i + 1 ? - L i ? ) 2 + ( a i + 1 * - a i * ) 2 + ( b i + 1 ? - b i ? ) 2 ] 0 .Type: ApplicationFiled: February 14, 2022Publication date: May 26, 2022Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jae Kyung KIM, Jiro SAKATO, Jirou HIROISHI, Toshihiro SUZUKI, Masami TAZUKE, Masato IKEUCHI, Kyosuke YAMAZAKI, Kentaro YABUNAKA
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Patent number: 11261318Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the polyolefin resin satisfies the expression: Mz/Mw?4, which is a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw to be obtained by a gel permeation chromatography measurement; a pellet or a formed body using this composite material; and a production method for the composite material.Type: GrantFiled: February 21, 2020Date of Patent: March 1, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yuka Sawada, Hidekazu Hara, Jirou Hiroishi, Masami Tazuke, Toshihiro Suzuki
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Publication number: 20220017726Abstract: A resin composite material containing a thermoplastic resin, a powder containing a polysaccharide, the powder being dispersed in the thermoplastic resin, and a monosaccharide; and a resin formed body obtained using the same.Type: ApplicationFiled: September 29, 2021Publication date: January 20, 2022Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jae Kyung KIM, Jiro SAKATO, Jirou HIROISHI, Toshihiro SUZUKI, Masami TAZUKE, Masato IKEUCHI, Kyosuke YAMAZAKI, Kentaro YABUNAKA
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Patent number: 11192346Abstract: A laminated body, containing a fiber-reinforced resin, in which a fiber-reinforced thermoplastic resin layer (1) containing fiber bundle of reinforcing fibers and a first thermoplastic resin, and a resin layer (2) containing a second thermoplastic resin, are alternately laminated, to form the fiber-reinforced resin, and the ratio of the indentation elastic modulus EIT-B of the first thermoplastic resin portion of the laminated body with respect to the indentation elastic modulus EIT-C of the second thermoplastic resin is 1.5 or more and 5.0 or less; a fiber-reinforced composite resin material; and a method of producing these.Type: GrantFiled: October 25, 2019Date of Patent: December 7, 2021Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Motoko Yoshizaki, Makiko Nakano, Yukihiro Ikura, Jirou Hiroishi, Isao Tomomatsu, Yousuke Kokubo, Yoichiro Negishi
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Publication number: 20210309814Abstract: A resin composite material, containing a polyolefin resin, and the following (a) and (b) dispersed in the polyolefin resin: (a) resin particles containing cellulose fibers and a resin different from the polyolefin resin, and having a maximum diameter of 10 ?m or more; and (b) resin particles containing a resin different from the polyolefin resin, having a maximum diameter of 10 ?m or more, and having an aspect ratio of 5 or more.Type: ApplicationFiled: June 17, 2021Publication date: October 7, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jae Kyung KIM, Jiro SAKATO, Jirou HIROISHI, Toshihiro SUZUKI, Masami TAZUKE, Masato IKEUCHI
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Publication number: 20210245482Abstract: A laminate, containing two or more polyolefin resin layers, wherein at least one polyolefin resin layer (A) contains a cellulose fiber including a cellulose fiber having a fiber length of 0.3 mm or more dispersed in the layer; a content of the cellulose fiber in the polyolefin resin layer (A) is 1% by mass or more and less than 60% by mass; and wherein a polyolefin resin layer (B) different from the polyolefin resin layer (A) is laminated in contact with the polyolefin resin layer (A).Type: ApplicationFiled: April 9, 2021Publication date: August 12, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Masami TAZUKE, Toshihiro SUZUKI, Hidekazu HARA, Jirou HIROISHI, Jae Kyung KIM, Masato IKEUCHI, Jiro SAKATO
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Publication number: 20210221988Abstract: A cellulose fiber-dispersing resin composite material, containing a cellulose fiber dispersed in a resin, in which a content of the cellulose fiber is 1% by mass or more and less than 70% by mass, and LL and LN satisfy the following [Expression 1], when a length weighted average fiber length of the cellulose fiber is taken as LL, and a number average fiber length of the cellulose fiber is taken as LN measured under the following measurement condition; a formed body using this composite material; and a composite member using this formed body. <Measurement Condition> LL and LN are determined for a dissolution residue obtained by immersing the cellulose fiber-dispersing resin composite material in a solvent capable of dissolving the resin in the composite material, in accordance with Pulps-Determination of fiber length by automated optical analysis specified by ISO 16065 2001. 1.1<(LL/LN)<1.Type: ApplicationFiled: April 9, 2021Publication date: July 22, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jirou HIROISHI, Jae Kyung KIM, Masami TAZUKE, Toshihiro SUZUKI, Masato IKEUCHI, Jiro SAKATO
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Publication number: 20210221987Abstract: A cellulose fiber-dispersing resin composite material, containing a cellulose fiber dispersed in a resin, wherein the cellulose fiber-dispersing resin composite material contains aggregates of the cellulose fiber, and at least a part of the aggregates is an aggregate having an area of 2.0×104 to 1.0×106 ?m2 in a plan view; a formed body using this composite material; and a composite member using this formed body.Type: ApplicationFiled: April 9, 2021Publication date: July 22, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jae Kyung KIM, Jirou HIROISHI, Masami TAZUKE, Toshihiro SUZUKI, Masato IKEUCHI, Jiro SAKATO
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Publication number: 20210139664Abstract: A cellulose-fiber dispersion polyethylene resin composite material, formed by dispersing a cellulose fiber into a polyethylene resin, wherein a proportion of the cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and wherein water absorption ratio satisfies the following formula; and a formed body and a pellet using the same, a production method therefor, and a recycling method for a cellulose-fiber adhesion polyethylene thin film piece. (water absorption ratio)<(cellulose effective mass ratio)2×0.01??[Formula].Type: ApplicationFiled: August 23, 2017Publication date: May 13, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Jirou HIROISHI, Hidekazu HARA, Yuka SAWADA, Masami TAZUKE, Toshihiro SUZUKI, Shingo MITSUGI
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Publication number: 20200190306Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the water absorption ratio satisfies the following Formula: (Water absorption ratio [%])<(Cellulose effective mass ratio [%])2×0.01; a pellet and a formed body using this composite material; and a production method for this composite material.Type: ApplicationFiled: February 21, 2020Publication date: June 18, 2020Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Hidekazu HARA, Jirou HIROISHI, Yuka SAWADA, Masami TAZUKE, Toshihiro SUZUKI
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Publication number: 20200190299Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin and a cellulose fiber dispersed in the polyolefin resin, in which the composite material contains the cellulose fiber of 3 mass % or more and less than 70 mass %, and when the composite material is subjected to the abrasion test according to ISO 6722 under the following test conditions, the amount of abrasion after 5,000 reciprocations satisfies the [Formula 1]: (Amount of abrasion [mm] of the cellulose-fiber-dispersing polyolefin resin composite material)<?0.003×(Cellulose effective mass ratio of the cellulose-fiber-dispersing polyolefin resin composite material)+0.3, [Test Conditions for Abrasion Test] Load: 1.7 kg, Needle diameter: ?0.45 mm, Stroke length: 10 mm, Period: 60 reciprocations/min, Test piece: length 38 mm×width 6 mm×thickness 1 mm, Temperature: 23° C.Type: ApplicationFiled: February 21, 2020Publication date: June 18, 2020Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Jirou HIROISHI, Hidekazu HARA, Yuka SAWADA, Masami TAZUKE, Toshihiro SUZUKI
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Publication number: 20200190305Abstract: A cellulose-fiber-dispersing polyolefin resin composite material, containing a polyolefin resin containing a polypropylene resin, and a cellulose fiber dispersed in the polyolefin resin, in which a proportion of the cellulose fiber is 1 mass part or more and 70 mass parts or less in a total content of 100 mass parts of the polyolefin resin and the cellulose fiber, and the polyolefin resin satisfies the expression: Mz/Mw?4, which is a ratio of Z-average molecular weight Mz to weight-average molecular weight Mw to be obtained by a gel permeation chromatography measurement; a pellet or a formed body using this composite material; and a production method for the composite material.Type: ApplicationFiled: February 21, 2020Publication date: June 18, 2020Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yuka SAWADA, Hidekazu HARA, Jirou HIROISHI, Masami TAZUKE, Toshihiro SUZUKI
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Publication number: 20200172684Abstract: A cellulose fiber dispersion polyethylene resin composite material formed by dispersing a cellulose fiber into a polyethylene resin, in which a proportion of the above-described cellulose fiber is 1 part by mass or more and 70 parts by mass or less in a total content of 100 parts by mass of the polyethylene resin and the cellulose fiber, and the polyethylene resin satisfies a relationship: 1.7>half-width (Log(MH/ML))>1.0 in a molecular weight pattern obtained by gel permeation chromatography measurement, and a formed body and a pellet using the same, a production method therefor, and a recycling method for the cellulose fiber adhesion polyethylene thin film piece.Type: ApplicationFiled: August 23, 2017Publication date: June 4, 2020Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Jirou HIROISHI, Hidekazu HARA, Yuka SAWADA, Masami TAZUKE, Toshihiro SUZUKI, Shingo MITSUGI