Patents by Inventor Ryuta Tsunoda

Ryuta Tsunoda 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: 20230211588
    Abstract: Provided is an interlayer film for laminated glass capable of suppressing generation of a gap in the interlayer film in end parts of the laminated glass although the interlayer film in which an increment in thickness is not constant from one end to the other end is used. An interlayer film for laminated glass according to the present invention contains a light stabilizer, and an oxidation inhibitor, and has one end, and the other end being at an opposite side of the one end and having a larger thickness than the one end, and the interlayer film for laminated glass has an increment not constant in thickness from the one end to the other end.
    Type: Application
    Filed: May 25, 2021
    Publication date: July 6, 2023
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kuon MINAMI, Hiromitsu NISHINO, Moyuru OKAJIMA, Ryuta TSUNODA
  • Patent number: 11685143
    Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 27, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 11554574
    Abstract: There is provided an interlayer film for laminated glass with which the visibility can be made uniform over the whole area of laminated glass. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and a heat shielding compound and has one end and the other end being at the opposite side of the one end and having a thickness thicker than the one end, the absolute value of a difference between the thickness of a thickest portion and the thickness of a thinnest portion is 0.1 mm or more, and in a sheet of laminated glass prepared by sandwiching the interlayer film between two sheets of heat ray-absorbing plate glass with a thickness of 2.1 mm, the absolute value of a difference between the visible light transmittance at the thickest portion of the interlayer film and the visible light transmittance at the thinnest portion of the interlayer film is 4% or less.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 17, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Masaki Matsudou, Daizou Ii, Ryuta Tsunoda
  • Publication number: 20230001671
    Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles ?1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles ?2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |?1-?2| is calculated from ?1 and ?2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |?1-?2| is 0.
    Type: Application
    Filed: September 2, 2022
    Publication date: January 5, 2023
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Publication number: 20220403175
    Abstract: Provided is an interlayer film for laminated glass capable of enhancing the weatherability. The interlayer film for laminated glass according to the present invention contains an anthraquinone dye and a perinone dye.
    Type: Application
    Filed: December 7, 2020
    Publication date: December 22, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Moyuru OKAJIMA, Reiko KISHIDA, Ryuta TSUNODA
  • Patent number: 11433650
    Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles ?1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles ?2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |?1??2| is calculated from ?1 and ?2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |?1??2| is 0.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 6, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 11014339
    Abstract: There is provided an interlayer film for laminated glass with which the adhesive force between the interlayer film and a laminated glass member of the laminated glass can be effectively improved. The interlayer film for laminated glass according to the present invention has one-layer structure or a two or more-layer structure, is provided with a first layer containing a thermoplastic resin, a plasticizer and a metal element as a surface layer of the interlayer film, and the first layer is a first layer having a contact angle of greater than 40.1° when measured by a sessile drop method using diiodomethane or a first layer having a contact angle of greater than 54.2° when measured by a sessile drop method using ethylene glycol.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 25, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kouhei Yamaguchi, Ryuta Tsunoda
  • Publication number: 20210114353
    Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed.
    Type: Application
    Filed: March 29, 2018
    Publication date: April 22, 2021
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 10954356
    Abstract: Provided is an interlayer film for laminated glass which has high heat shielding properties, a high visible transmittance, and excellent light resistance which enables retention of the high visible transmittance for a long period of time. The interlayer film for laminated glass according to the present invention has an interlayer film for laminated glass with a single layer structure or a laminated structure of two or more layers, the interlayer film for laminated glass according to the present invention comprises a first layer, and the first layer contains a polyvinyl acetal resin; a plasticizer; a tungsten oxide particle; a magnesium salt of an organic acid having a branched structure; and a metal salt of a C2 to C8 organic acid, other than the magnesium salt of an organic acid having a branched structure.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: March 23, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hirofumi Kitano, Juichi Fukatani, Daizou Ii, Ryuta Tsunoda
  • Patent number: 10913244
    Abstract: There is provided an interlayer film for a laminated glass having improved appearance which has a MD and TD direction; and one end, and another end being opposite side of and thicker than the one end. The one end and other end are positioned on both sides of the interlayer film in the TD direction. When the distance between the one end and other end is X, the absolute value for the difference between the largest and smallest thermal shrinkage ratios from among three thermal shrinkage ratios is 15% or less. The three thermal shrinkage ratios are positioned from the one end towards the other end in MD direction with a first thermal shrinkage ratio at 150° C. at a first position at 0.05X, a second thermal shrinkage ratio at 150° C. at a second position at 0.5X, and a third thermal shrinkage ratio at 150° C. at a third position at 0.95X.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: February 9, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda, Hiromitsu Nishino
  • Patent number: 10696020
    Abstract: There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a thermoplastic resin, an ultraviolet ray screening agent and tungsten oxide particles, and the ultraviolet ray screening agent is a benzotriazole-based ultraviolet ray screening agent.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: June 30, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 10596785
    Abstract: There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a two or more-layer structure, has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a first layer containing a thermoplastic resin and a second layer containing a thermoplastic resin, the difference between the maximum thickness and the minimum thickness in the first layer is smaller than the difference between the maximum thickness and the minimum thickness in the second layer, and the first layer contains a heat shielding compound.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: March 24, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 10569509
    Abstract: There is provided an interlayer film for laminated glass enabling the laminated glass to have low transmittance for a light ray with a wavelength of 430 nm, and furthermore, being capable of achieving low excitation purity thereof. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin, at least one first compound selected from yellow color-based coloring matter and red color-based coloring matter and at least one second compound selected from blue color-based coloring matter and purple color-based coloring matter, the ratio of the amount of the first compound to the amount of the second compound is 0.5 or more, and each of the blue color-based coloring matter and the purple color-based coloring matter is a kind of coloring matter with a maximum absorption wavelength of 550 nm or more and 750 nm or less.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: February 25, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ryuta Tsunoda, Yasuyuki Izu
  • Publication number: 20200031099
    Abstract: There is provided an interlayer film for laminated glass with which the visible light transmittance and the heat resistance of the laminated glass can be heightened. The interlayer film for laminated glass according to the present invention includes an organic coloring matter containing a transition element, a metal element which is different from a metal element contained in a metal oxide particle and different from a transition element, a thermoplastic resin and a plasticizer.
    Type: Application
    Filed: September 30, 2019
    Publication date: January 30, 2020
    Inventors: Ryuta Tsunoda, Yasuyuki Izu
  • Publication number: 20200016872
    Abstract: Provided is an interlayer film for laminated glass with which double images in laminated glass can be significantly suppressed. An interlayer film for laminated glass according to the present invention has one end, and the other end having a larger thickness than the one end, the interlayer film has a region for display corresponding to a display region of a head-up display, and when first partial wedge angles ?1 are calculated in respective first partial regions of 80 mm in the direction connecting the one end and the other end centered at respective selected points, second partial wedge angles ?2 are calculated in respective second partial regions of 40 mm in the direction connecting the one end and the other end centered at respective selected points, and |?1-?2| is calculated from ?1 and ?2 in the first partial region and the second partial region centered at the same point in the direction connecting the one end and the other end, a maximum value among all values of |?1-?2| is 0.
    Type: Application
    Filed: March 29, 2018
    Publication date: January 16, 2020
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Patent number: 10442163
    Abstract: There is provided an interlayer film for laminated glass with which the visible light transmittance and the heat resistance of the laminated glass can be heightened. The interlayer film for laminated glass according to the present invention includes an organic coloring matter containing a transition element, a metal element which is different from a metal element contained in a metal oxide particle and different from a transition element, a thermoplastic resin and a plasticizer.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: October 15, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ryuta Tsunoda, Yasuyuki Izu
  • Patent number: 10363721
    Abstract: There is provided an interlayer film for laminated glass with which any of the anti-glare property, light resistance and visibility in a dark place of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin and has a ratio L?s/Ls of the relative scotopic vision luminance L?s to the relative photopic vision luminance Ls to be greater than or equal to 1.0 at the time of preparing laminated glass with two sheets of clear glass in accordance with JIS R3202 (1996), and the interlayer film for laminated glass according to the present invention preferably includes at least one kind of ingredient among a phthalocyanine compound, a naphthalocyanine compound, an anthracyanine compound and an indanthrene compound which have a maximum absorption wavelength greater than or equal to 550 nm and less than or equal to 750 nm.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: July 30, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Ryuta Tsunoda, Yasuyuki Izu
  • Patent number: 10252495
    Abstract: There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a thermoplastic resin, an ultraviolet ray screening agent and tungsten oxide particles, and the ultraviolet ray screening agent is a benzotriazole-based ultraviolet ray screening agent.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: April 9, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Publication number: 20190061322
    Abstract: There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a thermoplastic resin, an ultraviolet ray screening agent and tungsten oxide particles, and the ultraviolet ray screening agent is a benzotriazole-based ultraviolet ray screening agent.
    Type: Application
    Filed: October 31, 2018
    Publication date: February 28, 2019
    Inventors: Yuusuke Oota, Ryuta Tsunoda
  • Publication number: 20180326706
    Abstract: There is provided an interlayer film for laminated glass with which double images can be effectively suppressed. The interlayer film for laminated glass according to the present invention has one end and the other end thicker in thickness than the one end, and has a region where the thickness is increased in a direction from one end side to the other end side and has a portion where the amount of increase in the thickness is increased in the direction from one end side to the other end side in the region where the thickness is increased, or has a region where the sectional shape in the thickness direction is a wedge-like shape and has a portion where the wedge angle is increased in a direction from one end side to the other end side in the region where the sectional shape in the thickness direction is a wedge-like shape.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 15, 2018
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuusuke Oota, Ryuta Tsunoda, Hiromitsu Nishino