Patents by Inventor Fumiaki Ise
Fumiaki Ise 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).
-
Publication number: 20240011202Abstract: Provided is an airbag base fabric in which combustibility due to both resin coating surface ignition and non-fabric surface ignition in the airbag base fabric is suppressed according to combustibility evaluation as defined in FMVSS 302 after environmental testing. The present invention pertains to a polyamide multifilament textile airbag base fabric and a method for manufacturing the same, the airbag base fabric being characterized by having a silicone film on at least one surface of the textile, the silicone film weight being 10 g/m2 to 100 g/m2 (inclusive), the cyclopentanone content being 0-250 ppm (inclusive) in relation to the textile weight, the greater shrinkage rate among the shrinkage rates in each of the warp and weft directions before and after heating for 60 minutes at 105° C. being 0-1.4% (inclusive), and the blade combing resistance after 400 hours in an environment of 85° C. and 95% relative humidity being 350 N or greater.Type: ApplicationFiled: October 13, 2021Publication date: January 11, 2024Applicant: Asahi Kasei Kabushiki KaishaInventor: Fumiaki Ise
-
Patent number: 11572640Abstract: Provided is an organic fiber doubled-and-twisted yarn cord the twist structure of which is uniform and with which it is possible to reduce weight. A doubled-and-twisted yarn cord comprising an organic fiber characterized in that a total fineness is 5000-15000 dtex inclusive, a coefficient of twisted yarn length difference between untwisting yarns constituting the doubled-and-twisted yarn cord that is obtained by an expression: coefficient of twisted yarn length difference (%)=(maximum value of yarn length difference between untwisting yarns)/(average value of yarn length of untwisting yarns)×100 is 1.5% or less, and breaking strength is 7.0 cN/dtex or greater.Type: GrantFiled: March 26, 2018Date of Patent: February 7, 2023Assignee: Asahi Kasei Kabushiki KaishaInventors: Ryo Nayuki, Fumiaki Ise, Hiroo Kawahara
-
Publication number: 20210115599Abstract: Provided is an organic fiber doubled-and-twisted yarn cord the twist structure of which is uniform and with which it is possible to reduce weight. A doubled-and-twisted yarn cord comprising an organic fiber characterized in that a total fineness is 5000-15000 dtex inclusive, a coefficient of twisted yarn length difference between untwisting yarns constituting the doubled-and-twisted yarn cord that is obtained by an expression: coefficient of twisted yarn length difference (%)=(maximum value of yarn length difference between untwisting yarns)/(average value of yarn length of untwisting yarns)×100 is 1.5% or less, and breaking strength is 7.0 cN/dtex or greater.Type: ApplicationFiled: March 26, 2018Publication date: April 22, 2021Applicant: Asahi Kasei Kabushiki KaishaInventors: Ryo Nayuki, Fumiaki Ise, Hiroo Kawahara
-
Patent number: 10773681Abstract: The purpose of the present invention is to provide a base fabric for an airbag and an airbag wherein the strength of sewn parts is high, pressure resistance is superior for an airbag during high-pressure deployment at high speeds, and pressure resistance can be maintained even after passage of time in heat. This base fabric for an airbag is characterized by being formed from woven polyamide fibers, and the retention of sewn part strength in the base fabric with heating before and after heat treatment for 400 hours at 140° C. being 70% or greater.Type: GrantFiled: April 11, 2019Date of Patent: September 15, 2020Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Patent number: 10385482Abstract: The purpose of the present invention is to improve thermal stability in a lightweight woven fabric that is useful for air bag applications and the like. This woven fabric comprises synthetic fibers, and is characterized in that, with regard to a rising temperature differential scanning calorimetry (DSC) endothermic curve for the woven fabric, the ratio of the amount of heat absorbed on the high temperature side of the maximum temperature of the melting endotherm on the rising temperature DSC endothermic curve for a woven fabric structure, to the overall heat absorbed exceeds 45%.Type: GrantFiled: August 12, 2014Date of Patent: August 20, 2019Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Publication number: 20190232913Abstract: The purpose of the present invention is to provide a base fabric for an airbag and an airbag wherein the strength of sewn parts is high, pressure resistance is superior for an airbag during high-pressure deployment at high speeds, and pressure resistance can be maintained even after passage of time in heat. This base fabric for an airbag is characterized by being formed from woven polyamide fibers, and the retention of sewn part strength in the base fabric with heating before and after heat treatment for 400 hours at 140° C. being 70% or greater.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki ISE
-
Patent number: 10308209Abstract: The purpose of the present invention is to provide a base fabric for an airbag and an airbag wherein the strength of sewn parts is high, pressure resistance is superior for an airbag during high-pressure deployment at high speeds, and pressure resistance can be maintained even after passage of time in heat. This base fabric for an airbag is characterized by being formed from woven polyamide fibers, and the retention of sewn part strength in the base fabric with heating before and after heat treatment for 400 hours at 140° C. being 70% or greater.Type: GrantFiled: May 28, 2014Date of Patent: June 4, 2019Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Patent number: 10259421Abstract: The purpose of the present invention is to provide a method of producing a fabric for an air bag that, during high-pressure deployment at high speed, maintains low air permeability as an air bag and is capable of maintaining the low air permeability even after exposure to heat. This method of producing a fabric for an air bag comprises the steps of: 1) weaving with high tension warp threads at 0.20 cN/dtex to 0.65 cN/dtex in a water jet loom, 2) carrying out a washing treatment step at 80° C. or lower or not carrying out a washing step, 3) drying at a temperature of 110° C. or lower, and 4) carrying out calendering processing.Type: GrantFiled: December 12, 2017Date of Patent: April 16, 2019Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Patent number: 10215257Abstract: Provided is a short rubber reinforcement fiber for short fiber-containing rubber compositions that are used for transmission belts for which friction transmission behavior has been stabilized and travel service life has been further improved. The present invention is a short fiber, which is the product of cutting an adhesive-treated synthetic long fiber multifilament yarn and is used by dispersing in a rubber composition, the short fiber being characterized in that the percentage of the number of non-adhesive-treated single yarns is 0-5%; and a method for manufacturing said short fibers, the method comprising a step for immersing a sudare-woven product in which the synthetic long fiber multifilament yarns have been sudare-woven in an adhesive treatment solution and then pressing at a nip pressure of 1.2-5.0 MPa using nip rolls, and a step for cutting the sudare-woven product bundles obtained to a specified length.Type: GrantFiled: April 9, 2015Date of Patent: February 26, 2019Assignee: ASAHI KASEI KABUSHIKI KAISHAInventors: Yuki Takami, Fumiaki Ise, Hiroo Kawahara, Hirofumi Enokizono, Tatsuya Sawairi
-
Publication number: 20180099636Abstract: The purpose of the present invention is to provide a fabric for an air bag that, during high-pressure deployment at high speed, maintains low air permeability as an air bag and is capable of maintaining the low air permeability even after exposure to heat. This fabric for an air bag comprises a synthetic fiber and is characterized by the contact angle of a circumscribed circle at intersecting sections in which the warp thread and the weft thread come in contact in the cross section of the fabric is at least 80° in both the warp thread direction and the weft thread direction.Type: ApplicationFiled: December 12, 2017Publication date: April 12, 2018Applicant: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki ISE
-
Patent number: 9868413Abstract: The purpose of the present invention is to provide a fabric for an air bag that, during high-pressure deployment at high speed, maintains low air permeability as an air bag and is capable of maintaining the low air permeability even after exposure to heat. This fabric for an air bag comprises a synthetic fiber and is characterized by the contact angle of a circumscribed circle at intersecting sections in which the warp thread and the weft thread come in contact in the cross section of the fabric is at least 80° in both the warp thread direction and the weft thread direction.Type: GrantFiled: December 17, 2013Date of Patent: January 16, 2018Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Patent number: 9845068Abstract: The purpose of the present invention is to provide a synthetic fiber which is for use in fabrics having uniform fiber density, permeability and the like, is appropriate for high-density, high-speed weaving, and exhibits excellent weft insertion stability. This synthetic fiber is characterized by having: a fiber density of 200-720 dtex; an average intermediate loading modulus of more than 75 cN/dtex and less than 150 cN/dtex; and a variation coefficient of the intermediate modulus of 5% or less.Type: GrantFiled: December 7, 2011Date of Patent: December 19, 2017Assignee: ASAHI KASEI FIBERS CORPORATIONInventors: Fumiaki Ise, Shingo Mizuno
-
Patent number: 9822471Abstract: A woven fabric for an air bag characterized by the asymmetry (R), in the front and back of the woven fabric and indicated by the following formula, of the radius of curvature (?of an intersecting section in which the warp thread and the weft thread come in contact in the cross section of the woven fabric, being in the range of 1.05-1,50, R=?a/?b (?a indicates the larger radius of curvature out of the radii of curvature (?) in the front and back surfaces of the woven fabric, and ?b indicates the smaller radius of curvature).Type: GrantFiled: December 17, 2013Date of Patent: November 21, 2017Assignee: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki Ise
-
Patent number: 9765449Abstract: The purpose of the present invention is to provide a polyamide fiber from which a fabric appropriate for use in airbags is obtainable, and which exhibits weave-loosening prevention properties after weaving thereof, and excellent mechanical properties. This polyamide fiber is characterized by having; a total fiber density of 100-700 dtex; a tensile strength of 8.0-11.5 cN/dtex; a boiling-water shrinkage of 4.0-11.0%; a slack recovery rate (A) represented by formula (1) after a fixed-length heat treatment of 0-4.0%; and a tightening index (F) represented by formula (2) of 3.8 or higher. A=[(Ta?Tb)/Ta]×100 (1) (In formula (1), Ta represents the amount of slack immediately after heat treatment, and Tb represents the amount of slack at the time of stabilization after heat treatment.) F=A+0.35×B (2) (In formula (2), A represents the slack recovery rate after the fixed-length heat treatment, and B represents the boiling-water shrinkage rate.Type: GrantFiled: December 7, 2011Date of Patent: September 19, 2017Assignee: ASAHI KASEI FIBERS CORPORATIONInventors: Fumiaki Ise, Shingo Mizuno
-
Publication number: 20170158159Abstract: The purpose of the present invention is to provide a base fabric for an airbag and an airbag wherein the strength of sewn parts is high, pressure resistance is superior for an airbag during high-pressure deployment at high speeds, and pressure resistance can be maintained even after passage of time in heat. This base fabric for an airbag is characterized by being formed from woven polyamide fibers, and the retention of sewn part strength in the base fabric with heating before and after heat treatment for 400 hours at 140° C. being 70% or greater.Type: ApplicationFiled: May 28, 2014Publication date: June 8, 2017Applicant: ASAHI KASEI KABUSHIKI KAISHAInventor: Fumiaki ISE
-
Publication number: 20170037933Abstract: Provided is a short rubber reinforcement fiber for short fiber-containing rubber compositions that are used for transmission belts for which friction transmission behavior has been stabilized and travel service life has been further improved. The present invention is a short fiber, which is the product of cutting an adhesive-treated synthetic long fiber multifilament yarn and is used by dispersing in a rubber composition, the short fiber being characterized in that the percentage of the number of non-adhesive-treated single yarns is 0-5%; and a method for manufacturing said short fibers, the method comprising a step for immersing a sudare-woven product in which the synthetic long fiber multifilament yarns have been sudare-woven in an adhesive treatment solution and then pressing at a nip pressure of 1.2-5.0 MPa using nip rolls, and a step for cutting the sudare-woven product bundles obtained to a specified length.Type: ApplicationFiled: April 9, 2015Publication date: February 9, 2017Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Yuki TAKAMI, Fumiaki ISE, Hiroo KAWAHARA, Hirofumi ENOKIZONO, Tatsuya SAWAIRI
-
Publication number: 20160193979Abstract: The objective of the present invention is to provide a woven fabric that is for an airbag, is a lightweight woven fabric having a low amount of resin coating film, suppresses high pressure air permeability after the passage of time, has superior stability of characteristics after sewing processing, and has superior gas leakage suppression of the sewn section. This woven fabric for an airbag comprises a synthetic fiber at which a resin has been disposed, and is characterized in that in the heating DSC heat-absorption curve of the woven fabric, the ratio of the high-temperature endotherm with respect to the overall endotherm is over 45% of the peak temperature of the melt endotherm in the heating DSC heat-absorption curve of the thread configuring the woven fabric.Type: ApplicationFiled: August 13, 2014Publication date: July 7, 2016Applicant: ASAHI KASEI FIBERS CORPORATIONInventor: Fumiaki ISE
-
Publication number: 20160194790Abstract: The purpose of the present invention is to improve thermal stability in a lightweight woven fabric that is useful for air bag applications and the like. This woven fabric comprises synthetic fibers, and is characterized in that, with regard to a rising temperature differential scanning calorimetry (DSC) endothermic curve for the woven fabric, the ratio of the amount of heat absorbed on the high temperature side of the maximum temperature of the melting endotherm on the rising temperature DSC endothermic curve for a woven fabric structure, to the overall heat absorbed exceeds 45%.Type: ApplicationFiled: August 12, 2014Publication date: July 7, 2016Applicant: ASAHI KASEI FIBERS CORPORATIONInventor: Fumiaki ISE
-
Patent number: 9352718Abstract: The purpose of the present invention is to provide a base fabric for airbags with excellent deployment speed, internal pressure retention and workability, and an airbag using the same. The inventive base fabric for airbags has resin arranged in at least one surface of the cloth which comprises synthetic fibers, and is characterized in that the amount of resin adhered is from 10 to 50 g/m2 and, further, the weaving thread's filaments is exposed on the resin surface, and the weaving thread's filaments exposure rate is from 1 to 25%.Type: GrantFiled: March 7, 2013Date of Patent: May 31, 2016Assignee: ASAHI KASEI FIBERS CORPORATIONInventors: Masato Enoki, Fumiaki Ise
-
Publication number: 20150368834Abstract: The purpose of the present invention is to provide a woven fabric for an air bag, that, during high-pressure deployment at high speed, has excellent air permeability suppression as an air bag, has high tear strength, has excellent reliability under high loads, and maintains same even after exposure to a high-temperature environment. This woven fabric for an air bag comprises a synthetic fiber and is characterized by the asymmetry (R), in the front and back of the woven fabric and indicated by the following formula, of the radius of curvature (?) of an intersecting section in which the warp thread and the weft thread come in contact in the cross section of the woven fabric, being in the range 1.05-1.50. R=?a/?b (?a indicates the larger radius of curvature out of the radii of curvature (?) in the front and back surfaces of the woven fabric, and ?b indicates the smaller radius of curvature).Type: ApplicationFiled: December 17, 2013Publication date: December 24, 2015Inventor: Fumiaki ISE