Patents by Inventor Naosuke Kunimoto
Naosuke Kunimoto 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: 11058660Abstract: A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.Type: GrantFiled: December 31, 2018Date of Patent: July 13, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Naosuke Kunimoto, Kenichi Suzuki, Kouya Kojima, Akira Hasegawa, Yasufumi Tsuchiya, Jun Kamada, Satoshi Yamasaki, Goro Kuwamura, Daisuke Hasegawa
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Patent number: 10947652Abstract: Apparatus for manufacturing a non-woven fabric includes a diffusing shaft, which includes a first shaft portion in a defined location and provided with a slit-shaped air guide, wherein filaments are supplied together with air from an inlet side of the air guide to an outlet side of the air guide; a second shaft portion in a defined location, having an inlet side that is communicated with an outlet side of the first shaft portion and an outlet side that is disposed to face a filament collecting unit, wherein an opening width along a machine direction of the inlet side of the second shaft portion is larger than an opening width along a machine direction of the first shaft portion; and a stepped portion provided at a connecting portion between the outlet side of the first shaft portion and the inlet side of the second shaft portion and connecting the same.Type: GrantFiled: March 24, 2017Date of Patent: March 16, 2021Assignee: MITSUI CHEMICALS, INC.Inventors: Shouichi Takaku, Kenichi Suzuki, Naosuke Kunimoto, Atsushi Kawada, Takayuki Tanaka
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Patent number: 10669660Abstract: A mixed fiber spunbonded nonwoven fabric which comprises 90 to 10% by weight of a long fiber of thermoplastic resin (A) that has been hydrophilization-treated and 10 to 90% by weight of a long fiber of thermoplastic elastomer (B) and which has a strength ratio [the ratio of a strength at 20% of an elongation at a maximum strength (elongation at a maximum point) to the maximum strength] in at least one direction of not more than 40% and a bulk density of 0.10 to 0.40 g/cm3. The fabric can exhibit excellent initial hydrophilicity, long-lasting hydrophilicity, liquid dispersibility, liquid transpiration property, moisture permeability, breathability, softness, resistance to fluff, stretchability and touch, and low stickiness, and is suitable for sheets constituting absorbent articles such as sanitary napkins, panty liners, incontinence pads, and disposable diapers. A production method is also provided.Type: GrantFiled: December 18, 2017Date of Patent: June 2, 2020Assignee: MITSUI CHEMICALS, INC.Inventor: Naosuke Kunimoto
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Publication number: 20190133987Abstract: A method of healing an external wound involves applying an external wound-healing agent to an external wound, or bringing the external wound-healing agent applied to a substrate into contact with an external wound, wherein the external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by defined Formula (I) or a diglycerol alkyl ester represented by defined Formula (II). In a further embodiment, the method involves bringing a fiber aggregate or a film into contact with an external wound, wherein the fiber aggregate or the film each includes a thermoplastic resin and at least one compound of the glycerol alkyl ester or the diglycerol alkyl ester.Type: ApplicationFiled: December 31, 2018Publication date: May 9, 2019Applicant: Mitsui Chemicals, Inc.Inventors: Naosuke KUNIMOTO, Kenichi SUZUKI, Kouya KOJIMA, Akira HASEGAWA, Yasufumi TSUCHIYA, Jun KAMADA, Satoshi YAMASAKI, Goro KUWAMURA, Daisuke HASEGAWA
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Publication number: 20190127897Abstract: Apparatus for manufacturing a non-woven fabric includes a diffusing shaft, which includes a first shaft portion in a defined location and provided with a slit-shaped air guide, wherein filaments are supplied together with air from an inlet side of the air guide to an outlet side of the air guide; a second shaft portion in a defined location, having an inlet side that is communicated with an outlet side of the first shaft portion and an outlet side that is disposed to face a filament collecting unit, wherein an opening width along a machine direction of the inlet side of the second shaft portion is larger than an opening width along a machine direction of the first shaft portion; and a stepped portion provided at a connecting portion between the outlet side of the first shaft portion and the inlet side of the second shaft portion and connecting the same.Type: ApplicationFiled: March 24, 2017Publication date: May 2, 2019Applicant: MITSUI CHEMICALS, INC.Inventors: Shouichi TAKAKU, Kenichi SUZUKI, Naosuke KUNIMOTO, Atsushi KAWADA, Takayuki TANAKA
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Publication number: 20190106821Abstract: A diffusing unit of an apparatus for manufacturing a non-woven fabric is provided with a diffusion space between a jet nozzle and a moving belt of a collecting unit, an opening of a sub nozzle is arranged side-by-side with an opening of the jet nozzle, and the sub nozzle jets air from the opening. The jet nozzle jets, toward the moving belt, plural filaments together with air. The air jetted from the jet nozzle forms a conveying flow that gradually spreads and flows in the diffusion space, and the plural filaments are diffused by this conveying flow and are sent toward the moving belt to be collected. The air jetted from the sub nozzle flows along the air flow around the conveying flow and suppresses air in the diffusion space from entering the conveying flow.Type: ApplicationFiled: March 24, 2017Publication date: April 11, 2019Applicant: MITSUI CHEMICALS, INC.Inventors: Shouichi Takaku, Kenichi Suzuki, Naosuke Kunimoto, Atsushi Kawada, Takayuki Tanaka
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Publication number: 20180105966Abstract: A mixed fiber spunbonded nonwoven fabric which comprises 90 to 10% by weight of a long fiber of thermoplastic resin (A) that has been hydrophilization-treated and 10 to 90% by weight of a long fiber of thermoplastic elastomer (B) and which has a strength ratio [the ratio of a strength at 20% of an elongation at a maximum strength (elongation at a maximum point) to the maximum strength] in at least one direction of not more than 40% and a bulk density of 0.10 to 0.40 g/cm3. The fabric can exhibit excellent initial hydrophilicity, long-lasting hydrophilicity, liquid dispersibility, liquid transpiration property, moisture permeability, breathability, softness, resistance to fluff, stretchability and touch, and low stickiness, and is suitable for sheets constituting absorbent articles such as sanitary napkins, panty liners, incontinence pads, and disposable diapers. A production method is also provided.Type: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Applicant: MITSUI CHEMICALS, INC.Inventor: Naosuke Kunimoto
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Publication number: 20170209406Abstract: An external wound-healing agent includes, as an active ingredient, at least one compound of a glycerol alkyl ester represented by Formula (I) or a diglycerol alkyl ester represented by Formula (II).Type: ApplicationFiled: July 15, 2015Publication date: July 27, 2017Applicant: Mitsui Chemicals, Inc.Inventors: Naosuke Kunimoto, Kenichi Suzuki, Kouya Kojima, Akira Hasegawa, Yasufumi Tsuchiya, Jun Kamada, Satoshi Yamasaki, Goro Kuwamura, Daisuke Hasegawa
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Publication number: 20150233031Abstract: The object of the present invention is to provide a polypropylene spunbond nonwoven fabric excellent in its flexibility, bending resistance, texture and strength. A spunbond nonwoven fabric of the present invention is made of a propylene polymer composition containing a propylene polymer (A) having a melting point of not less than 120° C. and a fatty acid amide having not less than 15 and not more than 21 carbon atoms. An oleic acid amide is preferred as the fatty acid amide having not less than 15 and not more than 21 carbon atoms. Preferably, the propylene polymer composition further contains a propylene polymer (B) having a melting point of less than 120° C.Type: ApplicationFiled: September 26, 2013Publication date: August 20, 2015Applicant: MITSUI CHEMICALS, INC.Inventors: Naosuke Kunimoto, Kenichi Suzuki, Yoshihisa Kawakami, Kosuke Ota
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Patent number: 8501646Abstract: A non-woven fabric laminate that is excellent in strechability, flexibility, and bulkiness, and that is less sticky and is suitable for a mechanical fastening female material. The non-woven fabric laminate includes a mixed fiber spunbonded non-woven fabric and a non-woven fabric comprising a crimped fiber that is laminated on at least one face of the mixed fiber spunbonded non-woven fabric, which includes a continuous fiber of a thermoplastic elastomer (A) in the range of 10 to 90% by weight and a continuous fiber of a thermoplastic resin (B) in the range of 90 to 10% by weight (where (A)+(B)=100% by weight). The non-woven fabric laminate can be suitably used for a sanitary material and other materials. More specifically, there can be mentioned for instance an absorbent article such as a disposable diaper and a menstrual sanitary product as a sanitary material.Type: GrantFiled: February 27, 2008Date of Patent: August 6, 2013Assignee: Mitsui Chemicals, Inc.Inventors: Shigeyuki Motomura, Kenichi Suzuki, Kazuhiko Masuda, Hisashi Morimoto, Naosuke Kunimoto
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Publication number: 20120164908Abstract: A mixed fiber spunbonded nonwoven fabric which comprises 90 to 10% by weight of a long fiber of thermoplastic resin (A) that has been hydrophilization-treated and 10 to 90% by weight of a long fiber of thermoplastic elastomer (B) and which has a strength ratio [the ratio of a strength at 20% of an elongation at a maximum strength (elongation at a maximum point) to the maximum strength] in at least one direction of not more than 40% and a bulk density of 0.10 to 0.40 g/cm3. The fabric can exhibit excellent initial hydrophilicity, long-lasting hydrophilicity, liquid dispersibility, liquid transpiration property, moisture permeability, breathability, softness, resistance to fluff, stretchability and touch, and low stickiness, and is suitable for sheets constituting absorbent articles such as sanitary napkins, panty liners, incontinence pads, and disposable diapers. A production method is also provided.Type: ApplicationFiled: July 22, 2010Publication date: June 28, 2012Applicant: MITSUI CHEMICALS INC.Inventor: Naosuke Kunimoto
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Patent number: 8129298Abstract: A nonwoven fabric laminate possesses excellent elasticity, softness, water resistance, fuzz resistance and curl resistance, and has less stickiness. The nonwoven fabric laminate includes at least one meltblown nonwoven fabric layer and mixed-fiber spunbonded nonwoven fabric layers on both surfaces of the at least one meltblown nonwoven fabric layer, the mixed-fiber spunbonded nonwoven fabric layers each comprising mixed fibers including 10 to 90 wt % of continuous fibers of a thermoplastic elastomer (A) and 90 to 10 wt % of continuous fibers of a thermoplastic resin (B) other than the thermoplastic elastomer (A) ((A)+(B)=100 wt %).Type: GrantFiled: December 27, 2006Date of Patent: March 6, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Shigeyuki Motomura, Kenichi Suzuki, Naosuke Kunimoto
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Publication number: 20110092936Abstract: The object of the present invention is to provide a mixed fiber spun bonded nonwoven fabric which has excellent bulkiness, initial hydrophilicity, long-lasting hydrophilicity, flexibility, resistance to fluff, stretchability and touch and low stickiness, and is suitable for a surface sheet for absorbent articles such as sanitary napkins, panty liners, incontinence pads, disposable diapers and other absorbent articles. The mixed fiber spun-bonded nonwoven fabric comprises 90 to 10% by weight of a long fiber type thermoplastic resin (A) and 10 to 90% by weight of a long fiber type thermoplastic elastomer (B) wherein at least, the long fiber type thermoplastic resin (A) is hydrophilized. The present invention also provides a surface sheet and a second sheet for absorbent articles which sheets comprise the mixed fiber spun bonded nonwoven fabric and provides absorbent articles.Type: ApplicationFiled: May 21, 2009Publication date: April 21, 2011Inventor: Naosuke Kunimoto
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Publication number: 20100105273Abstract: An object of the present invention is to develop a non-woven fabric laminate that is excellent in stretchability, flexibility, and bulkiness, and that is less sticky and is suitable for a mechanical fastening female material. The non-woven fabric laminate in accordance with the present invention comprises a mixed fiber spunbonded non-woven fabric and a non-woven fabric comprising a crimped fiber that is laminated on at least one face of the mixed fiber spunbonded non-woven fabric, which comprises a long fiber of a thermoplastic elastomer (A) in the range of 10 to 90% by weight and a long fiber of a thermoplastic resin (B) in the range of 90 to 10% by weight (where (A)+(B)=100% by weight). The non-woven fabric laminate can be suitably used for a sanitary material and other materials. More specifically, there can be mentioned for instance an absorbent article such as a disposable diaper and a menstrual sanitary product as a sanitary material.Type: ApplicationFiled: February 27, 2008Publication date: April 29, 2010Applicant: MITSUI CHEMICALS, INC.Inventors: Shigeyuki Motomura, Kenichi Suzuki, Kazuhiko Masuda, Hisashi Morimoto, Naosuke Kunimoto
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Publication number: 20100093244Abstract: An object of the present invention is to develop a mixed-fiber nonwoven fabric laminate being excellent in strechability, flexibility, touch feeling, and formability and being less sticky. The mixed-fiber nonwoven fabric laminate of the present invention comprising at least two mixed-fiber spunbonded nonwoven fabric layers whose fiber mixing ratios of long fibers of a thermoplastic elastomer (A) and long fibers of a thermoplastic resin (B) are different from each other can be suitably used not only in sanitary materials but in medical materials, hygienic materials, industrial materials, and so on. Specific examples of the sanitary materials include absorptive articles such as disposable diapers and sanitary napkins.Type: ApplicationFiled: February 26, 2008Publication date: April 15, 2010Applicant: Mitsui Chemicals, Inc.Inventors: Shigeyuki Motomura, Kenichi Suzuki, Naosuke Kunimoto
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Publication number: 20080038982Abstract: A nonwoven fabric laminate possesses excellent elasticity, softness, water resistance, fuzz resistance and curl resistance, and has less stickiness. The nonwoven fabric laminate includes at least one meltblown nonwoven fabric layer and mixed-fiber spunbonded nonwoven fabric layers on both surfaces of the at least one meltblown nonwoven fabric layer, the mixed-fiber spunbonded nonwoven fabric layers each comprising mixed fibers including 10 to 90 wt % of continuous fibers of a thermoplastic elastomer (A) and 90 to 10 wt % of continuous fibers of a thermoplastic resin (B) other than the thermoplastic elastomer (A) ((A)+(B)=100 wt %).Type: ApplicationFiled: December 27, 2006Publication date: February 14, 2008Applicant: MITSUI CHEMICALS, INC.Inventors: Shigeyuki Motomura, Kenichi Suzuki, Naosuke Kunimoto
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Publication number: 20050159067Abstract: The present invention is to provide a hydrophilic nonwoven fabric which can reveal hydrophilicity even after exposure to high temperature. The hydrophilic nonwoven fabric comprising an olefinic polymer containing a hydrophilic agent is characterized in that hydrophilicity can be revealed after heating treatment for an hour at 60° C. The nonwoven fabric is manufactured by using an olefinic polymer (B) and a master batch where a hydrophilic agent is included in an olefinic polymer (A), wherein an MFR (melt flow rate) of a master batch is preferably the same as or lower than the MFR of an olefinic polymer composition forming the nonwoven fabric.Type: ApplicationFiled: November 5, 2004Publication date: July 21, 2005Applicant: Mitsui Chemicals, Inc.Inventors: Naosuke Kunimoto, Yoshihisa Kawakami