Patents by Inventor Masayuki Haruta

Masayuki Haruta 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: 20230257533
    Abstract: [PROBLEMS] It is an object of the present invention to provide a heat-shrinkable polyester-based film roll which can reduce defects caused during a heat shrinking step due to the variation of a heat shrinkage rate in the heat-shrinkable polyester-based film roll having the longitudinal direction as the main shrinkage direction, specifically, defects of the film when covering an object by a wrap-around method and heat-shrunk. [SOLUTIONS] A heat-shrinkable polyester-based film roll, comprising a core; and a heat-shrinkable polyester-based film having a longitudinal direction as a main shrinkage direction that is wound around the core; wherein the film (roll) satisfy predetermined polyester composition, and all samples cutout every about 100 m have a heat shrinkage rate measured by immersion in hot water of 90° C. for 10 seconds of 30% or more and 80% or less and ±3% or less of an average in the longitudinal direction.
    Type: Application
    Filed: July 1, 2021
    Publication date: August 17, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Shintaro ISHIMARU, Masayuki HARUTA
  • Publication number: 20230191820
    Abstract: [PROBLEM] To provide a packaging and a display material which permit printing in distinct fashion by a laser, and which are of high transparency. [SOLUTION MEANS] A display material having at least one layer permitting printing as a result of laser irradiation, the display material being such that the printing occurs due to change in color caused by the laser irradiation in at least one region of said layer; when a digital microscope is used to carry out cross-sectional observation of said printed region and a nonprinted region, a significant difference in at least any one of RGB values indicating color elements is observed; and thickness of said printed region is not less than 5?m but not greater than 200 ?m.
    Type: Application
    Filed: April 15, 2021
    Publication date: June 22, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Shintaro ISHIMARU, Masayuki HARUTA
  • Publication number: 20230151146
    Abstract: The invention provides a copolymerized polyester raw material for film, wherein (1) the copolymerized polyester raw material comprises 5-40 mol % of constituent unit derived from diethylene glycol in 100 mol % of total glycol component amount in whole polyester resin component; (2) the copolymerized polyester raw material comprises 0-5 mol % of constituent unit derived from a monomer component which can become an amorphous component in whole polyester resin component; (3) the copolymerized polyester raw material has a glass transition temperature of 73° C. or lower; (4) the copolymerized polyester raw material has an intrinsic viscosity of 0.60-0.85 dl/g; and (5) the copolymerized polyester raw material has a melt viscosity of 200 Pa·S or less in a measurement at 255° C. and shear rate of 6080/S, as well as a heat-shrinkable polyester film which is produced by the raw material.
    Type: Application
    Filed: May 10, 2021
    Publication date: May 18, 2023
    Applicant: TOYOBO CO., LTD.
    Inventor: Masayuki HARUTA
  • Patent number: 11608204
    Abstract: The invention provides a heat-shrinkable film that has (1) a glass transition temperature (Tg) of 90-140° C.; (2) shrinkage of 12% or less in a main shrinkage direction when treated in glycerin at 80° C. for 10 seconds; (3) shrinkage of 12% or less in a direction orthogonal to the main shrinkage direction when treated in glycerin at 140° C. for 10 seconds; (4) shrinkage of 30%-80% in the main shrinkage direction when treated in glycerin at 140° C. for 10 seconds; (5) a tensile elongation at break of 10% or more both in the main shrinkage direction and the orthogonal direction after aging of 672 hours at 50° C. and 70% RH; and (6) a difference of 5% or less between shrinkage at 140° C. in the main shrinkage direction after aging of 672 hours at 50° C. and 70% RH, and shrinkage at 140° C. in the main shrinkage direction before the aging.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 21, 2023
    Assignee: TOYOBO CO., LTD.
    Inventor: Masayuki Haruta
  • Publication number: 20230038115
    Abstract: A polyolefin-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of pigment permitting printing as a result of laser irradiation is present in all layers of the film; haze thereof is not less than 1% but not greater than 30%; and unevenness in thickness thereof in either a machine direction or a transverse direction is not less than 0.1% but not greater than 25%. An object is to provide a film capable of being printed in distinct fashion by a laser, that excels with respect to unevenness in thickness, and that is of high transparency, and at the same time provide packaging which employs such film and on which printing has been directly carried out.
    Type: Application
    Filed: December 14, 2020
    Publication date: February 9, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Shintaro ISHIMARU, Masayuki HARUTA
  • Patent number: 11565459
    Abstract: The invention provides a heat-shrinkable polyester-based film roll obtained by winding a heat-shrinkable polyester-based film with a shrinkage ratio of 30% or more in a film main shrinkage direction in hot water at 90° C. for 10 seconds. The film roll has a winding length of 2000-25000 m and a width of 400-2500 mm. The film has a thickness of 5-40 ?m. In thickness unevenness in a width direction of the film on a surface layer of the film roll, there are positions having concave thickness patterns, and in a concave portion that has a maximum thickness difference (maximum concave portion), thickness unevenness in the maximum concave portion, which is obtained from the maximum thickness difference in the maximum concave portion and an average thickness of the film is 10% or less. The winding hardness of the surface layer of the film roll is 400-800.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: January 31, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Masayuki Haruta, Norimi Tabota
  • Patent number: 11548271
    Abstract: The invention provides a sealant film that is less likely to adsorb components formed of various types of organic compounds, has excellent heat sealing characteristics at 140° C., while having low heat sealing strength at 100° C. and being less likely for heat sealing layers to adhere to each other even when the film is used as a packaging bag and the content thereof is warmed in boiling water. The sealant film has at least one heat sealing layer consisting of a polyester component, wherein a heat sealing strength of the heat sealing layer being heat sealed to another heat sealing layer at 100° C. and 0.2 MPa for 2 seconds is 0-5 N/15 mm and at 140° C. and 0.2 MPa for 2 seconds is 8-30 N/15 mm, and a film density including all layers is 1.20 or more and less than 1.39.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: January 10, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Hiroko Maruyama, Masayuki Haruta, Shintaro Ishimaru
  • Publication number: 20230001679
    Abstract: A polyester-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of laser-printable metal is present in all layers of the film. The film is capable of being printed in distinct fashion by a laser, excels with respect to unevenness in thickness, and is of high transparency, while at the same time provide packaging which employs such film and on which printing has been directly carried out.
    Type: Application
    Filed: October 20, 2020
    Publication date: January 5, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Shintaro ISHIMARU, Masayuki HARUTA
  • Publication number: 20230001619
    Abstract: [Problem] To provide: a biaxially oriented polyester film that exhibits excellent transparency, enables easy secondary processing such as coating and vapor deposition, provides excellent post-secondary-processing properties, and is environmentally friendly in that the film is made from polyester resins recycled from the market and society, including those from PET bottles; and a production method for such a film. [Solution] A biaxially oriented polyester film comprising a polyester resin composition containing particles and polyester resins recycled from the market and society, including those from PET bottles, the film having at least one surface that satisfies all requirements (1)-(3). (1) The number of fine projections having a height less than 3 nm per an area of 4×10-12m2 is 250-600. (2) The number of fine projections having a height not less than 3 nm per an area of 4×10-12m2 is 300-600. (3) The arithmetic average height Sa is 0.01-0.025 ?m.
    Type: Application
    Filed: December 8, 2020
    Publication date: January 5, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Nobuyuki MANABE, Masayuki HARUTA
  • Publication number: 20220403156
    Abstract: The present invention aims to provide a heat-shrinkable polyester film roll having decreased generation of wrinkles or longitudinal shrink mark. The present invention provides a film roll of a heat shrinkable polyester film, wherein a polyester of the polyester film contains recycled raw material from a PET bottle and an acid component of the polyester comprises isophthalic acid, and the film roll satisfies a specific average value of a shrinkage, specific isophthalic acid ratio, and specific thickness unevenness.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 22, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masafumi INOUE, Masayuki HARUTA
  • Patent number: 11524858
    Abstract: The invention provides a heat-shrinkable polyester film roll containing a paper tube and a heat-shrinkable polyester film wound around the paper tube to form the heat-shrinkable polyester film roll, wherein (1) the film winding length is 2000-20000 m, (2) the film width is 400-2500 mm, (3) the film thickness is 5-30 ?m, (4) unevenness in thickness in the film widthwise direction in a film roll surface layer part is 12% or less, (5) the paper tube has an inner diameter of 3 inches, a difference in clearance of the paper tube in a widthwise direction after removal of the film from the film roll is 0.5 mm or less, and a flat compressive strength of the paper tube after removal of the film is 1700 N/100 mm or more, and (6) the average value of winding hardness in the widthwise direction in the film roll surface layer part is 500-850.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 13, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Masayuki Haruta, Norimi Tabota
  • Patent number: 11518595
    Abstract: A laminated body having at least two or more different layers, wherein the laminate body is characterized by satisfying the following requirements (1) to (5): (1) the laminate body has a heat-sealing layer as at least one of the outermost layers, wherein the heat-sealing layer includes a polyester based component containing ethylene terephthalate as a main constituent component, and a sealing strength of 8 N/15 mm to 30 N/15 mm; (2) at least one layer other than the heat-sealing layer is an inorganic thin film layer; (3) a water vapor permeation rate of 0.1 g/m2·d to 6 g/m2·d; (4) an oxygen permeation rate of 5 ml/m2·d·MPa to 30 ml/m2·d·MPa; and (5) a heat shrinkage rate of ?5% to 5%.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 6, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Shintaro Ishimaru, Masayuki Haruta
  • Publication number: 20220306345
    Abstract: [Problem] To provide a heat-shrinkable polyester film having excellent shrink finishing property due to the film's sufficient heat shrinkability and low shrinkage stress in the longitudinal direction, small change in the non-shrinkable direction of the film. [Solution] The heat-shrinkable polyester film which heat-shrinks in the longitudinal direction and satisfying the following (1) to (6); (1) having a shrinkage of 35% to 70% in the longitudinal direction; (2) having a shrinkage of ?8% to 7% in the width direction; (3) having a change rate of 5% to 22% when fixed in the longitudinal direction with fixed-length; (4) having a change rate of 5% to 20% in the width direction when fixed with 10% of slack in the longitudinal direction; (5) having a maximum shrinkage stress of 5 MPa to 15 MPa in the longitudinal direction; (6) having a stress at 10% elongation, F10, of 1 MPa to 5 MPa in the longitudinal direction and 0.5 MPa to 3 MPa in the width direction.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 29, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masayuki HARUTA, Norimi TABOTA
  • Publication number: 20220274731
    Abstract: A heat-shrinkable polyester film that has (1) a hot-water heat shrinkage of 40% or more in a main shrinkage direction of the film when immersed in hot water of 98° C. for 10 seconds; (2) a planar orientation coefficient of 0.035-0.070; (3) ethylene terephthalate as a main constituent component and 6-25 mol % diethylene glycol (DEG) constituent in 100 mol % of polyhydric alcohol in all the polyester resin constituting the film; (4) a maximum shrinkage stress of 2-17 MPa in the main shrinkage direction of the film when measured in hot air of 90° C.; and (5) a tensile elongation at break of 20% or more in a direction orthogonal to the main shrinkage direction after the film is aged in an atmosphere with an atmospheric temperature of 40° C. and a relative humidity of 85% for 28 days.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 1, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masafumi INOUE, Masayuki HARUTA
  • Publication number: 20220267541
    Abstract: The invention provides a heat-shrinkable polyester film roll obtained by winding a heat-shrinkable polyester film on a paper tube with primary shrinkage in the longitudinal direction and a shrinkage rate of 40% or more, wherein the film has a winding length of 1000 to 30000 m, a width of 50 to 1500 mm, and a thickness of 5-30 ?m, the thickness irregularity of the film roll in the width direction is 20% or less, the paper tube has an inner diameter of 3 inches with a 0.5 mm or less difference in clearance and a 1700 N/100 mm or more flat compressive strength in the width direction after the film is removed from the film roll, the mean value of the winding hardness of the surface layer part of the film roll in the width direction is 500-850, and the natural shrinkage rate in the longitudinal direction is 2.0% or less.
    Type: Application
    Filed: September 23, 2020
    Publication date: August 25, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masafumi INOUE, Masayuki HARUTA
  • Publication number: 20220251314
    Abstract: Disclosed is a biaxially oriented polyester film that is superior in transparency and easy to perform secondary processing such as coating and vapor deposition, and satisfies performance after the secondary processing. The biaxially oriented polyester film consists of a polyester resin composition including particles, and at least one surface of the film satisfies all of the following requirements (1) to (3): (1) the number of micro protrusions having a height of less than 3 nm per an area of 4×10?12 m2 of 250 or more and 600 or less; (2) the number of micro protrusions having a height of 3 nm or more per an area of 4×10?12 m2 of 300 or more and 600 or less; and (3) an arithmetic average height Sa of 0.010 ?m or more and 0.025 ?m or less.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 11, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Nobuyuki MANABE, Masayuki HARUTA
  • Publication number: 20220126495
    Abstract: To provide a biaxially-oriented polyester film roll that is excellent in transparency and heat resistance and has less defects. A biaxially oriented polyester film roll of the present invention characterized by satisfying requirements (1) a winding length of the film roll, (2) a width of the film roll, (3) an average hardness of an outermost surface layer of the polyester film roll, (4) a variation in hardness, (5) a thickness of a polyester film of the polyester film roll, and (6) an irregularity of thickness in the maximum concave portion.
    Type: Application
    Filed: February 5, 2020
    Publication date: April 28, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masayuki HARUTA, Norimi TABOTA
  • Patent number: 11298927
    Abstract: The invention provides a white polyester film formed with a polyester resin whose main constituent is ethylene terephthalate, and (1) the film has at least two or more layers, and has at least one white layer and at least one heat sealing layer, wherein at least one of the film surfaces is the heat sealing layer, and the film satisfies the prescribed requirements of (2) the peeling strength of the heat sealing layers, (3) the difference in reversing heat capacity between at a lower and a higher temperature than a glass transition temperature of the heat sealing layer, (4) the heat shrinkage in both a longitudinal and width direction when treated in hot water at 80° C. for 10 seconds, (5) the total light transmittance, and (6) the apparent specific gravity.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: April 12, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Shintaro Ishimaru, Masayuki Haruta
  • Patent number: 11299595
    Abstract: Provided is a heat-shrinkable polyester film which has heat shrinkage properties in a main shrinkage direction in the longitudinal direction, a small variation in shrinkage in the width direction, and less likely generated wrinkles and strains at the time of shrinkage finishing. The polyester film is prepared from a polyester raw material resin comprising 50 mol % or more of an ethylene terephthalate unit in 100 mol % of constituent units of a polyester, diol components selected from aliphatic, alicyclic, and aromatic diols, and an amorphous monomer component that is 2% or more in 100 mol % of either a polyhydric alcohol component or a polybasic carboxylic acid component in the whole polyester resin, wherein the polyester does not contain polybasic carboxylic acids of tribasic or more, and the polyester film is obtained by uniaxial drawing in the longitudinal direction.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 12, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Masafumi Inoue, Masayuki Haruta
  • Publication number: 20220056223
    Abstract: To provide a biaxially oriented polyester film that has extremely low content of antimony, excellent hygiene, few foreign substances, excellent transparency and heat resistance, and is excellent in printability, workability, and productivity. A biaxially oriented polyester film characterized by a content of antimony in the film of 10 ppm or less, a content of phosphorus in the film of 25 ppm or more and 75 ppm or less, an intrinsic viscosity of the film of 0.51 dl/g or more and 0.70 dl/g or less, and a number of defects with a size of 1 mm or more is 1.0 or less per 1000 square meters of the film.
    Type: Application
    Filed: January 30, 2020
    Publication date: February 24, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Masayuki HARUTA, Norimi TABOTA