Patents by Inventor Yasunori Fukushima

Yasunori Fukushima 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: 20220380535
    Abstract: An object of the present invention is to provide a polyphenylene ether melt extrusion formed body which can be obtained by melt forming without mixing other resin components and has excellent properties such as mechanical strength, and a method for producing the same. The present invention relates to a polyphenylene ether melt extrusion formed body comprising a polyphenylene ether component which has a rearrangement structure having a continuous structure bonded at an ortho-position in a repeating unit continuously bonded at a para-position.
    Type: Application
    Filed: September 18, 2020
    Publication date: December 1, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Yusuke KOJO, Akifumi YASUI, Yasunori FUKUSHIMA, Teruyuki TANINAKA, Kenta HOJO
  • Publication number: 20220235492
    Abstract: Provided is a polyethylene fiber having outstanding anti-creep characteristics while having high strength. The present invention provides an ultra-high molecular weight polyethylene fiber including ethyl branches as side chains, characterized in that the ratio {(C2H5/1000C)/(elongation stress)} of the number of ethyl branches per 1,000 carbon atoms (C2H5/1000C) to the elongation stress of the polyethylene fiber (MPa) is 2 to 30 branches/1,000 carbon atoms/MPa.
    Type: Application
    Filed: May 13, 2020
    Publication date: July 28, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Akihisa Furuta, Yasunori Fukushima, Tatsushi Okamoto
  • Patent number: 11155936
    Abstract: The present invention provides a highly functional polyethylene fiber exhibiting reduction of change in their physical properties in a wide range of temperatures for processing for products and in a wide range of temperatures for usage as products, thereby enabling improvement of dimensional stability. In addition, the present invention provides a highly functional polyethylene fiber exhibiting a high degree of dye exhaustion to be obtained in a simple dyeing operation, and excellent color fastness. The highly functional polyethylene fiber of the present invention is characterized in that an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit thereof, and a maximum thermal shrinkage stress is less than or equal to 0.4 cN/dtex in TMA (thermo-mechanical analysis), and a thermal shrinking percentage at 100° C. is less than or equal to 2.5%.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: October 26, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Shoji Oda, Akira Hamano, Minoru Masuda
  • Patent number: 10626531
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments and a braid comprising the multifilament, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, the monofilament has a titer of 3 dtex or more and 40 dtex or less, the multifilament has a thermal shrinkage of 0.20% or less at 70° C. and a thermal shrinkage of 3.0% or less at 120° C., and a stress Raman shift factor under the condition of applying a load that is 10% of a breaking load to the monofilament is 5.0 cm?1 or less.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: April 21, 2020
    Assignee: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako
  • Patent number: 10364512
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and shows 1000 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 5 cN/dtex in accordance with JIS L-1095.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: July 30, 2019
    Assignee: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako, Hirokazu Nishimura
  • Publication number: 20190194844
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments and a braid comprising the multifilament, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, the monofilament has a titer of 3 dtex or more and 40 dtex or less, the multifilament has a thermal shrinkage of 0.20% or less at 70° C. and a thermal shrinkage of 3.0% or less at 120° C., and a stress Raman shift factor under the condition of applying a load that is 10% of a breaking load to the monofilament is 5.0 cm?1 or less.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 27, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako
  • Patent number: 10287711
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and wherein a difference between a maximum value and a minimum value in a ratio of a diffraction peak intensity of orthorhombic crystal (200) plane to a diffraction peak intensity of orthorhombic crystal (110) plane in a monofilament cross section is 0.22 or less.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 14, 2019
    Assignee: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako, Hirokazu Nishimura
  • Patent number: 10087560
    Abstract: It is provided that a braid which has high dimensional stability even in long-term high temperature storage and which fluctuates little in physical properties with the lapse of time. And it is provided that fishing lines, nets, ropes, and protective covers, and bulletproof materials using the same. A braid comprising a polyethylene fiber or polyethylene tape which has an intrinsic viscosity [?] of not less than 5.0 dL/g and not more than 30 dL/g and contains not less than 90% of ethylene as a repeating unit thereof, wherein a thermal shrinkage percentage is not less than 0.45% and not more than 8% under an environment of 80° C. for 240 hours.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 2, 2018
    Assignee: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Kojiro Hamano
  • Publication number: 20170107642
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and shows 1000 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 5 cN/dtex in accordance with JIS L-1095.
    Type: Application
    Filed: March 13, 2015
    Publication date: April 20, 2017
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako, Hirokazu Nishimura
  • Publication number: 20170101727
    Abstract: It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [?] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and wherein a difference between a maximum value and a minimum value in a ratio of a diffraction peak intensity of orthorhombic crystal (200) plane to a diffraction peak intensity of orthorhombic crystal (110) plane in a monofilament cross section is 0.22 or less.
    Type: Application
    Filed: March 13, 2015
    Publication date: April 13, 2017
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Masayuki Shirako, Hirokazu Nishimura
  • Patent number: 9546446
    Abstract: A polyethylene fiber characterized by having an intrinsic viscosity [?] of 0.8 dL/g or more and less than 5 dL/g; being composed of a repeating unit substantially derived from ethylene; having pores formed inside of the fiber; having an average diameter of the pores of ranging from 3 nm to 1 ?m when the diameter is measured, by each pore being approximated by a column, at a contact angle of 140 degrees, in a mercury intrusion method; a porosity of the pores of ranging from 1.5% to 20%; and having a tensile strength greater than or equal to 8 cN/dtex.
    Type: Grant
    Filed: October 10, 2010
    Date of Patent: January 17, 2017
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunori Fukushima, Shoji Oda, Minoru Masuda, Akira Hamano, Kunio Nishioka
  • Publication number: 20150247269
    Abstract: It is provided that a braid which has high dimensional stability even in long-term high temperature storage and which fluctuates little in physical properties with the lapse of time. And it is provided that fishing lines, nets, ropes, and protective covers, and bulletproof materials using the same. A braid comprising a polyethylene fiber or polyethylene tape which has an intrinsic viscosity [?] of not less than 5.0 dL/g and not more than 30 dL/g and contains not less than 90% of ethylene as a repeating unit thereof, wherein a thermal shrinkage percentage is not less than 0.45% and not more than 8% under an environment of 80° C. for 240 hours.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 3, 2015
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Kojiro Hamano
  • Patent number: 8728619
    Abstract: The present invention provides a highly functional polyethylene fiber excellent in the cut resistance, has a high dimensional stability at about room temperature at which products are used, has a high shrinkage rate and stress, and excellent in forming processability when processed at a low temperature much less than a melting point of a polyethylene. And the present invention provides a highly functional polyethylene fiber excellent in processability at a low temperature, wherein an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and is not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit, and a thermal stress at 40° C. is lower than or equal to 0.05 cN/dtex, and a thermal stress at 70° C. is higher than or equal to 0.05 cN/dtex, and is not higher than 0.25 cN/dtex. Further the present invention provides strings, ropes, woven/knitted textiles, and gloves thereof.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunori Fukushima, Shoji Oda, Akira Hamano, Minoru Masuda
  • Publication number: 20140000007
    Abstract: The present invention provides a highly functional polyethylene fiber exhibiting reduction of change in their physical properties in a wide range of temperatures for processing for products and in a wide range of temperatures for usage as products, thereby enabling improvement of dimensional stability. In addition, the present invention provides a highly functional polyethylene fiber exhibiting a high degree of dye exhaustion to be obtained in a simple dyeing operation, and excellent color fastness. The highly functional polyethylene fiber of the present invention is characterized in that an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit thereof, and a maximum thermal shrinkage stress is less than or equal to 0.4 cN/dtex in TMA (thermo-mechanical analysis), and a thermal shrinking percentage at 100° C. is less than or equal to 2.5%.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 2, 2014
    Applicant: TOYOBO CO., LTD.
    Inventors: Yasunori Fukushima, Shoji Oda, Akira Hamano, Minoru Masuda
  • Publication number: 20130029552
    Abstract: The present invention provides a highly functional polyethylene fiber excellent in the cut resistance, has a high dimensional stability at about room temperature at which products are used, has a high shrinkage rate and stress, and excellent in forming processability when processed at a low temperature much less than a melting point of a polyethylene. And the present invention provides a highly functional polyethylene fiber excellent in processability at a low temperature, wherein an intrinsic viscosity [?] is higher than or equal to 0.8 dL/g, and is not higher than 4.9 dL/g, ethylene is substantially contained as a repeating unit, and a thermal stress at 40° C. is lower than or equal to 0.05 cN/dtex, and a thermal stress at 70° C. is higher than or equal to 0.05 cN/dtex, and is not higher than 0.25 cN/dtex. Further the present invention provides strings, ropes, woven/knitted textiles, and gloves thereof.
    Type: Application
    Filed: January 24, 2011
    Publication date: January 31, 2013
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Yasunori Fukushima, Shoji Oda, Akira Hamano, Minoru Masuda
  • Patent number: 8348698
    Abstract: Male terminals are respectively provided in terminal attachment portions formed on a flange unit. Female terminals and grommets are provided for a harness. A seal lip portion to be fitted into each of the terminal attachment portions is formed on each of the grommets. In the cylindrical terminal attachment portions the male terminals are individually accommodated while being electrically insulated from each other. The terminal attachment portions are arranged alternately in two rows so that a line segment obtained by connecting the respective centers of openings of the terminal attachment portions is a polygonal line. The openings are arranged to form the Olympic symbol. At a fore-end of each of the terminal attachment portions, slits are provided. Owing to the slits, the opening is likely to be enlarged when the rubber grommet is inserted therethrough. As a result, the placement of the rubber grommet is facilitated.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: January 8, 2013
    Assignees: Mitsuba Corporation, Honda Motor Co., Ltd.
    Inventors: Bunji Homma, Takao Ikarugi, Taichi Nakamura, Yasunori Fukushima, Takeshi Yanagisawa, Masayuki Toriyama, Naoyuki Yamate
  • Publication number: 20120204322
    Abstract: The present invention provides a polyethylene fiber which can attain a high dye exhaustion rate, which indicates deep color, and which is excellent in dyeability and color fastness; a woven or knit textile that uses the polyethylene fiber, and that is excellent in cut-resistance and heat-retaining property, and a glove thereof. A polyethylene fiber of the present invention is characterized by having an intrinsic viscosity [?] of 0.8 dL/g or more and less than 5 dL/g; being composed of a repeating unit substantially derived from ethylene; having pores being formed from a surface of the fiber to an inside of the fiber; having an average diameter of the pores of ranging from 3 nm to 1 ?m when the diameter is measured, by each pore being approximated by a column, at a contact angle of 140 degrees, in a mercury intrusion method; a porosity of the pores of ranging from 1.5% to 20% 1; or a thermal conductivity in a fiber axis direction at a temperature of 300 K of ranging from 6 W/mK to 50 W/mK.
    Type: Application
    Filed: October 10, 2010
    Publication date: August 16, 2012
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Yasunori Fukushima, Shoji Oda, Minoru Masuda, Akira Hamano, Kunio Nishioka
  • Publication number: 20110138516
    Abstract: The present invention provides a highly functional polyethylene fiber which has excellent heat-retaining property and cut resistance, and is further excellent in productivity and process passability in subsequent processes, a covered elastic yarn, woven/knitted textiles, and gloves using the highly functional polyethylene fiber. A polyethylene fiber of the present invention comprises a polyethylene, wherein a repeating unit of the polyethylene is substantially ethylene, and the polyethylene fiber has a weight average molecular weight (Mw) of 50,000 to 300,000, a ratio (Mw/Mn) of the weight average molecular weight to a number average molecular weight (Mn) of less than or equal to 4.0, and a gel fraction of 100 ppm or more and 10,000 ppm or less, or a zero shear viscosity in a molten state at 190° C. of ranging from 8,000 (Pa·s) to 300,000 (Pa·s).
    Type: Application
    Filed: August 20, 2009
    Publication date: June 16, 2011
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Yasunori Fukushima, Syoji Oda, Minoru Masuda
  • Patent number: 7811673
    Abstract: To provide a novel high strength polyethylene multifilament which consists of a plurality of filaments having high strengths and uniform internal structures, and showing a narrow variation in the strengths of the monofilaments, and which has been difficult to be provided by the conventional gel spinning method. A high strength polyethylene multifilament consisting of a plurality of filaments which are characterized in that the crystal size of monoclinic crystal is 9 nm or less; the stress Raman shift factor is ?5.0 cm?1/(cN/dTex) or more; the average strength is 20 CN/dTex or higher; the knot strength retention of each monofilament is 40% or higher; CV indicating a variation in the strengths of the monofilaments is 25% or lower; the elongation at break is from 2.5% inclusive to 6.0% inclusive; the fineness of each filament is 10 dTex or less; and the melting point of the filaments is 145° C. or higher.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: October 12, 2010
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Godo Sakamoto, Tooru Kitagawa, Yasuo Ohta, Yasunori Fukushima, Hiroki Murase
  • Publication number: 20100215523
    Abstract: Male terminals 83 are respectively provided in terminal attachment portions 82 formed on a flange unit 7. Female terminals 84 and grommets 85 are provided for a harness 17. A seal lip portion 86 to be fitted into each of the terminal attachment portions 82 is formed on each of the grommets 85. In the cylindrical terminal attachment portions 82, the male terminals 83 are individually accommodated while being electrically insulated from each other. The terminal attachment portions 82 are arranged alternately in two rows so that a line segment obtained by connecting the respective centers of openings of the terminal attachment portions is a polygonal line. The openings 87 are arranged to form the Olympic symbol. At a fore-end of each of the terminal attachment portions 82, slits 89 are provided. Owing to the slits 89, the opening 87 is likely to be enlarged when the rubber grommet 85 is inserted therethrough. As a result, the placement of the rubber grommet 85 is facilitated.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 26, 2010
    Inventors: Bunji Homma, Takao Ikarugi, Taichi Nakamura, Yasunori Fukushima, Takeshi Yanagisawa, Masayuki Toriyama, Naoyuki Yamate