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).

  • Patent number: 10773681
    Abstract: 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: Grant
    Filed: April 11, 2019
    Date of Patent: September 15, 2020
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Patent number: 10385482
    Abstract: 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: Grant
    Filed: August 12, 2014
    Date of Patent: August 20, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Publication number: 20190232913
    Abstract: 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: Application
    Filed: April 11, 2019
    Publication date: August 1, 2019
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki ISE
  • Patent number: 10308209
    Abstract: 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: Grant
    Filed: May 28, 2014
    Date of Patent: June 4, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Patent number: 10259421
    Abstract: 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: Grant
    Filed: December 12, 2017
    Date of Patent: April 16, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Patent number: 10215257
    Abstract: 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: Grant
    Filed: April 9, 2015
    Date of Patent: February 26, 2019
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuki Takami, Fumiaki Ise, Hiroo Kawahara, Hirofumi Enokizono, Tatsuya Sawairi
  • Publication number: 20180099636
    Abstract: 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: Application
    Filed: December 12, 2017
    Publication date: April 12, 2018
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki ISE
  • Patent number: 9868413
    Abstract: 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: Grant
    Filed: December 17, 2013
    Date of Patent: January 16, 2018
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Patent number: 9845068
    Abstract: 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: Grant
    Filed: December 7, 2011
    Date of Patent: December 19, 2017
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Fumiaki Ise, Shingo Mizuno
  • Patent number: 9822471
    Abstract: 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: Grant
    Filed: December 17, 2013
    Date of Patent: November 21, 2017
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki Ise
  • Patent number: 9765449
    Abstract: 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: Grant
    Filed: December 7, 2011
    Date of Patent: September 19, 2017
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Fumiaki Ise, Shingo Mizuno
  • Publication number: 20170158159
    Abstract: 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: Application
    Filed: May 28, 2014
    Publication date: June 8, 2017
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventor: Fumiaki ISE
  • Publication number: 20170037933
    Abstract: 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: Application
    Filed: April 9, 2015
    Publication date: February 9, 2017
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yuki TAKAMI, Fumiaki ISE, Hiroo KAWAHARA, Hirofumi ENOKIZONO, Tatsuya SAWAIRI
  • Publication number: 20160194790
    Abstract: 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: Application
    Filed: August 12, 2014
    Publication date: July 7, 2016
    Applicant: ASAHI KASEI FIBERS CORPORATION
    Inventor: Fumiaki ISE
  • Publication number: 20160193979
    Abstract: 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: Application
    Filed: August 13, 2014
    Publication date: July 7, 2016
    Applicant: ASAHI KASEI FIBERS CORPORATION
    Inventor: Fumiaki ISE
  • Patent number: 9352718
    Abstract: 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: Grant
    Filed: March 7, 2013
    Date of Patent: May 31, 2016
    Assignee: ASAHI KASEI FIBERS CORPORATION
    Inventors: Masato Enoki, Fumiaki Ise
  • Publication number: 20150368834
    Abstract: 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: Application
    Filed: December 17, 2013
    Publication date: December 24, 2015
    Inventor: Fumiaki ISE
  • Publication number: 20150329998
    Abstract: 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: Application
    Filed: December 17, 2013
    Publication date: November 19, 2015
    Inventor: Fumiaki ISE
  • Publication number: 20150115574
    Abstract: 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: Application
    Filed: March 7, 2013
    Publication date: April 30, 2015
    Inventors: Masato Enoki, Fumiaki Ise
  • Patent number: 8962499
    Abstract: An object of the present invention is to provide a base fabric suitable for the production of a general-purpose airbag having a higher airtight performance with reduced air permeability, a high pressure resistance in the boundary portion between the inflating part and the non-inflating part, and a high impact absorption for an occupant, and a base fabric for an airbag of the present invention comprises a woven fabric formed of a multifilament synthetic fiber having a total fineness of 200 to 550 dtex and a single filament fineness of 2.0 to 7.0 dtex, wherein the elongation is, on average of warp and weft, from 5 to 15% and from 15 to 30% under loads of 50 N/cm and 300 N/cm, respectively, and the pullout resistance of the constituent yarn is from 50 to 200 N/cm/cm on average of warp and weft.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: February 24, 2015
    Assignee: Asahi Kasei Fibers Corporation
    Inventors: Takeshi Tanaka, Fumiaki Ise, Tokio Okuno, Masato Enoki