Patents by Inventor Jun Tsujimoto

Jun Tsujimoto 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: 20260153766
    Abstract: Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is 0.070 ?m or more and 0.400 ?m or less, AM2 is 0.0050 ?m or more, and AM2<AM1.
    Type: Application
    Filed: January 22, 2026
    Publication date: June 4, 2026
    Inventors: Mitsuhiro KUZUHARA, Yukimitsu IWATA, Jun TSUJIMOTO, Shigeki MURAKAMI, Gen FURUI
  • Patent number: 12560835
    Abstract: An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is 0.070 ?m or more and 0.400 ?m or less, AM2 is 0.0050 ?m or more, and AM2<AM1.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: February 24, 2026
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Mitsuhiro Kuzuhara, Yukimitsu Iwata, Jun Tsujimoto, Shigeki Murakami, Gen Furui
  • Patent number: 12535625
    Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a reduced peak height Spk of 0.20 ?m or more and 1.00 ?m or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: January 27, 2026
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Jun Tsujimoto, Gen Furui, Yukimitsu Iwata, Shigeki Murakami, Takumi Yoneyama, Mitsuhiro Kuzuhara
  • Publication number: 20250298269
    Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/m2 or more and 0.050 ml/m2 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Application
    Filed: June 6, 2025
    Publication date: September 25, 2025
    Inventors: Jun TSUJIMOTO, Gen FURUI, Yukimitsu IWATA, Shigeki MURAKAMI, Takumi YONEYAMA, Mitsuhiro KUZUHARA
  • Publication number: 20250264639
    Abstract: Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Application
    Filed: May 6, 2025
    Publication date: August 21, 2025
    Inventors: Jun TSUJIMOTO, Gen FURUI, Shigeki MURAKAMI, Yukimitsu IWATA, Takumi YONEYAMA, Mitsuhiro KUZUHARA
  • Publication number: 20250237790
    Abstract: Provided is an anti-glare film excellence in anti-glare properties and capable of suppressing sparkle. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein a 60°-specular glossiness measured from the uneven surface side is 30.0 or less, and a coefficient of variation of brightness is 0.0400 or less. The anti-glare film has a 20°-specular glossiness measured from the uneven surface side of preferably 6.0 or less.
    Type: Application
    Filed: October 27, 2022
    Publication date: July 24, 2025
    Inventors: Mitsuhiro KUZUHARA, Yukimitsu IWATA, Jun TSUJIMOTO, Gen FURUI, Makio KURASHIGE, Kazutoshi ISHIDA, Shumpei NISHIO
  • Patent number: 12353087
    Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/m2 or more and 0.050 ml/m2 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: July 8, 2025
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Jun Tsujimoto, Gen Furui, Yukimitsu Iwata, Shigeki Murakami, Takumi Yoneyama, Mitsuhiro Kuzuhara
  • Patent number: 12320953
    Abstract: Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: June 3, 2025
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Jun Tsujimoto, Gen Furui, Shigeki Murakami, Yukimitsu Iwata, Takumi Yoneyama, Mitsuhiro Kuzuhara
  • Publication number: 20250155605
    Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 ?m or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp?2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 ?l pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Inventors: Jun TSUJIMOTO, Yukimitsu IWATA, Michiaki TAKEI, Masafumi TANAKA, Keisuke IKEDA, Gen FURUI
  • Patent number: 12248121
    Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 ?m or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp?2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 ?l pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: March 11, 2025
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Jun Tsujimoto, Yukimitsu Iwata, Michiaki Takei, Masafumi Tanaka, Keisuke Ikeda, Gen Furui
  • Publication number: 20250044635
    Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/m2 or more and 0.050 ml/m2 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Application
    Filed: April 25, 2023
    Publication date: February 6, 2025
    Inventors: Jun TSUJIMOTO, Gen FURUI, Yukimitsu IWATA, Shigeki MURAKAMI, Takumi YONEYAMA, Mitsuhiro KUZUHARA
  • Publication number: 20240427058
    Abstract: Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sa1 of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178-2:2012.
    Type: Application
    Filed: April 25, 2023
    Publication date: December 26, 2024
    Inventors: Jun TSUJIMOTO, Gen FURUI, Shigeki MURAKAMI, Yukimitsu IWATA, Takumi YONEYAMA, Mitsuhiro KUZUHARA
  • Publication number: 20240418911
    Abstract: Provided is an optical film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a reduced peak height Spk of 0.20 ?m or more and 1.00 ?m or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 ?m or more and 12.0 ?m or less specified in ISO 25178.
    Type: Application
    Filed: April 25, 2023
    Publication date: December 19, 2024
    Inventors: Jun TSUJIMOTO, Gen FURUI, Yukimitsu IWATA, Shigeki MURAKAMI, Takumi YONEYAMA, Mitsuhiro KUZUHARA
  • Publication number: 20240411055
    Abstract: Provided is an anti-glare film excellent in anti-glare properties and scratch resistance and capable of suppressing reflected scattered light. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for an amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is more than 0.4000 ?m and 1.0000 ?m or less, and AM2 is 0.0050 ?m or more and 0.0500 ?m or less.
    Type: Application
    Filed: October 27, 2022
    Publication date: December 12, 2024
    Inventors: Mitsuhiro KUZUHARA, Yukimitsu IWATA, Jun TSUJIMOTO, Shigeki MURAKAMI, Gen FURUI
  • Patent number: 12135406
    Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 ?m or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp?2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 ?l pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.
    Type: Grant
    Filed: March 26, 2024
    Date of Patent: November 5, 2024
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Jun Tsujimoto, Yukimitsu Iwata, Michiaki Takei, Masafumi Tanaka, Keisuke Ikeda, Gen Furui
  • Publication number: 20240272331
    Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 ?m or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp?2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 ?l pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.
    Type: Application
    Filed: September 25, 2023
    Publication date: August 15, 2024
    Inventors: Jun TSUJIMOTO, Yukimitsu IWATA, Michiaki TAKEI, Masafumi TANAKA, Keisuke IKEDA, Gen FURUI
  • Publication number: 20240272330
    Abstract: An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 ?m or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp?2.00 (Expression 1) wherein “Sw” represents a tilt angle (degrees) of 30 ?l pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m2) of the first surface specified in ISO 25178-2:2012.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 15, 2024
    Inventors: Jun TSUJIMOTO, Yukimitsu IWATA, Michiaki TAKEI, Masafumi TANAKA, Keisuke IKEDA, Gen FURUI
  • Patent number: 11960162
    Abstract: Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. The anti-glare film includes an anti-glare layer, the anti-glare film having an uneven surface, wherein for an amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is 0.070 ?m or more and 0.400 ?m or less, AM2 is 0.0050 ?m or more, and AM2<AM1.
    Type: Grant
    Filed: July 11, 2023
    Date of Patent: April 16, 2024
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Mitsuhiro Kuzuhara, Yukimitsu Iwata, Jun Tsujimoto, Shigeki Murakami, Gen Furui
  • Publication number: 20240012277
    Abstract: Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is 0.070 ?m or more and 0.400 ?m or less, AM2 is 0.0050 ?m or more, and AM2<AM1.
    Type: Application
    Filed: July 11, 2023
    Publication date: January 11, 2024
    Inventors: Mitsuhiro KUZUHARA, Yukimitsu IWATA, Jun TSUJIMOTO, Shigeki MURAKAMI, Gen FURUI
  • Publication number: 20230229036
    Abstract: Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. An anti-glare film including an anti-glare layer, the anti-glare film having an uneven surface, wherein for amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 ?m?1, 0.010 ?m?1, and 0.015 ?m?1 is defined as AM1 and an amplitude at a spatial frequency of 0.300 ?m?1 is defined as AM2, AM1 is 0.070 ?m or more and 0.400 ?m or less, AM2 is 0.0050 ?m or more, and AM2<AM1.
    Type: Application
    Filed: May 14, 2021
    Publication date: July 20, 2023
    Inventors: Mitsuhiro KUZUHARA, Yukimitsu IWATA, Jun TSUJIMOTO, Shigeki MURAKAMI, Gen FURUI