Patents by Inventor Yusuke Matsuno

Yusuke Matsuno 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: 11125413
    Abstract: There is provided a method to manufacture a diffuser plate with better productivity and exhibiting an excellent diffusion property and having excellent durability with respect to light having large coherence, the microlens array diffuser plate including: a microlens group positioned on a surface of a transparent substrate. The diffuser plate includes two or more unit cells that are continuously set in array, the unit cell includes a plurality of microlenses positioned on the surface of the transparent substrate, and ridge lines between the microlenses adjacent to each other are nonparallel to each other, and are nonparallel to the transparent substrate.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 21, 2021
    Assignee: DEXERIALS CORPORATION
    Inventors: Naoki Hanashima, Akio Takada, Kazuyuki Shibuya, Yusuke Matsuno
  • Patent number: 11112550
    Abstract: Provided is a polarizing plate that is a polarizing plate having a wire grid structure, and includes a transparent substrate and a plurality of protrusions that extend in a first direction on the transparent substrate and are periodically arranged at a pitch shorter than a wavelength of light in a use band. Each of the protrusions includes a reflective layer, a multilayer film, and an optical property improving layer located between the reflective layer and the multilayer film. The optical property improving layer contains an oxide that contains a constituent element of which the reflective layer is composed. An etching rate of the optical property improving layer with respect to a chlorine-based gas is no less than 6.7 times and no more than 15 times an etching rate of the multilayer film.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: September 7, 2021
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210208323
    Abstract: A polarizing plate includes a substrate and a plurality of projections which protrude with respect to the substrate, in which the plurality of projections are formed by periodically arraying projections extending in a first direction in plan view, each of the projections includes a reflective layer and a tip end portion, the tip end portion is arranged at a position further away from the substrate than the reflective layer, the tip end portion is continuously widened from a first end portion, which is a tip end, to a second end portion on a side close to the substrate in a first cut plane perpendicular to the substrate and the first direction, and a first surface of the tip end portion includes a continuous first curved surface.
    Type: Application
    Filed: July 25, 2019
    Publication date: July 8, 2021
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210199869
    Abstract: Provided are: a polarizing plate having high transmittance characteristics and suppressed reflected light, and a manufacturing method thereof; and an optical device provided with said polarizing plate. A polarizing plate (100) having a wire grid structure comprises: a transparent substrate (1); and grid-like projection portions (20) arranged on the transparent substrate at a pitch shorter than the wavelength of light in a used bandwidth and extending in a predetermined direction. The grid-like projection portions (20) each have a reflective layer (3) and a dielectric layer (4) in order from the transparent substrate (1) side, wherein when viewed from the predetermined direction, the reflective layer (3) has at least one step on the side thereof and has the largest bottom width on the transparent substrate (1) side.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 1, 2021
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Patent number: 11029458
    Abstract: To provide a polarizing plate and an optical apparatus capable of improving durability while maintaining excellent optical characteristics. Provided is a polarizing plate 1 with a wire grid structure, including: a transparent substrate 10; and a grid-shaped convex portion 11 which is arranged on the transparent substrate 10 at a pitch P shorter than a wavelength of light of a use band, extends in a predetermined direction, and includes a reflection layer 12 formed of a light reflective material, wherein a surface of the grid-shaped convex portion 11 and a surface of a bottom surface portion of a groove formed between the grid-shaped convex portions 11 are provided with a protection film 20 which covers the surfaces thereof and the protection film 20 is formed by two kinds or more of protection films including an organic film formed of an organic material.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 8, 2021
    Assignee: Dexerials Corporation
    Inventors: Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno
  • Patent number: 11009789
    Abstract: Provided are a pattern formation method and a method for manufacturing a polarizing plate using the pattern formation method, the pattern formation method having: a step for forming, on a substrate, a linear guide pattern which is arranged at a predetermined pitch and is compatible with a portion of block chains of a block copolymer, and a neutral pattern embedded in the pattern of the guide pattern; a step for forming a layer including a block copolymer on the guide pattern and the neutral pattern; a step for heat-treating the layer including the block copolymer and forming a lamellar structure in which lamellar boundaries are arranged perpendicular to the substrate by microphase separation of the block copolymer; and a step for selectively removing a portion of the block chains of the block copolymer and thereby forming a line-and-space-shaped fine pattern having a smaller pitch than the guide pattern.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: May 18, 2021
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210072446
    Abstract: Provided is a structural birefringence-type inorganic wave plate having excellent heat resistance and durability, and a fine pattern. Also provided is a manufacturing method for an inorganic wave plate by which, even in the case of a fine pattern, productivity is high, and a desired phase difference is easily achieved and stably obtained. This inorganic wave plate is obtained by utilizing a selective interaction between a polymer having a repeating unit containing a carbonyl group, and a metallic oxide precursor, the inorganic wave plate having a wire grid structure provided with a transparent substrate, and grid-shaped protruding portions arranged at a pitch shorter than the wavelength of light in a used band on at least one surface of the transparent substrate and extending in a predetermined direction, the main component of the grid-shaped protruding portion being a metallic oxide.
    Type: Application
    Filed: May 7, 2019
    Publication date: March 11, 2021
    Applicant: Dexerials Corporation
    Inventors: Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno
  • Publication number: 20210055591
    Abstract: This polarizer is a polarizer having a wire grid structure that includes a transparent substrate, a dielectric film which extends across one surface of the transparent substrate and has a lower refractive index than the transparent substrate, and a plurality of projections which extend in a first direction on top of the dielectric film and are arrayed periodically at a pitch that is shorter than the wavelength of the light in the used light region, wherein the transparent substrate has a thermal conductivity of at least 10 W/m·K but not more than 40 W/m·K, the plurality of projections each have, in order from the side closer to the dielectric film, a first dielectric layer, a reflective layer and a functional layer, the reflective layer contains a metal or a metal compound, and the functional layer is formed from a material different from the reflective layer.
    Type: Application
    Filed: June 15, 2020
    Publication date: February 25, 2021
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Patent number: 10928574
    Abstract: Provided is a polarizing plate having an appropriate reflectance characteristic formed from an inexpensive material by an inexpensive production device. In a polarizing plate having a wire grid structure including: a transparent substrate; and a grid-like projection that is arranged on the transparent substrate at a pitch smaller than a wavelength of light in a used band and extends in a predetermined direction, an absorption layer constituting the grid-like projection contains an impurity semiconductor obtained by adding a minute amount of a specific element to an intrinsic semiconductor.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 23, 2021
    Assignee: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210011374
    Abstract: Provided are a pattern formation method and a method for manufacturing a polarizing plate using the pattern formation method, the pattern formation method having: a step for forming, on a substrate, a linear guide pattern which is arranged at a predetermined pitch and is compatible with a portion of block chains of a block copolymer, and a neutral pattern embedded in the pattern of the guide pattern; a step for forming a layer including a block copolymer on the guide pattern and the neutral pattern; a step for heat-treating the layer including the block copolymer and forming a lamellar structure in which lamellar boundaries are arranged perpendicular to the substrate by microphase separation of the block copolymer; and a step for selectively removing a portion of the block chains of the block copolymer and thereby forming a line-and-space-shaped fine pattern having a smaller pitch than the guide pattern.
    Type: Application
    Filed: January 11, 2019
    Publication date: January 14, 2021
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20210003746
    Abstract: In order to provide an optical device and a diffusion plate which has high transmittance and is capable of reducing speckle noise, the present it is a diffusion plate 1 in which a plurality of microlens cells 11 are arranged on both surfaces of a transparent substrate 10, the diffusion plate 1 having a first microlens array 12A which is formed on one surface of the transparent substrate 10 and comprises a plurality of concave or convex microlens cells 11, and a second microlens array 12B which is formed on the other surface on the reverse side from the one surface and comprises a plurality of concave or convex microlens cells 11, and the diffusion plate 1 being configured so that light emitted from the microlens cells 11 constituting the first microlens array 12A is incident on the microlens cells 11 constituting the second microlens array 12B.
    Type: Application
    Filed: January 21, 2019
    Publication date: January 7, 2021
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Katsuhiro Shindo, Naoki Hanashima, Yusuke Matsuno
  • Publication number: 20200355860
    Abstract: Provided is a wire grid polarization plate that has heat resistance and excellent polarization properties, and has durability even in a thin wire structure with a small pitch, and an optical apparatus and a manufacturing method of a polarization plate. A periodic lamellar structure is formed with a material forming arrangement by self-assembling performance, and then, is metallized, and thus, metal wires arranged at a small pitch are prepared, and the obtained wires are fixed by a dielectric material.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 12, 2020
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20200341179
    Abstract: Provided is a polarizing plate having an appropriate reflectance characteristic formed from an inexpensive material by an inexpensive production device. In a polarizing plate having a wire grid structure including: a transparent substrate; and a grid-like projection that is arranged on the transparent substrate at a pitch smaller than a wavelength of light in a used band and extends in a predetermined direction, an absorption layer constituting the grid-like projection contains an impurity semiconductor obtained by adding a minute amount of a specific element to an intrinsic semiconductor.
    Type: Application
    Filed: May 29, 2019
    Publication date: October 29, 2020
    Applicant: Dexerials Corporation
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20200209451
    Abstract: Provided is a polarizing plate that is a polarizing plate having a wire grid structure, and includes a transparent substrate and a plurality of protrusions that extend in a first direction on the transparent substrate and are periodically arranged at a pitch shorter than a wavelength of light in a use band. Each of the protrusions includes a reflective layer, a multilayer film, and an optical property improving layer located between the reflective layer and the multilayer film. The optical property improving layer contains an oxide that contains a constituent element of which the reflective layer is composed. An etching rate of the optical property improving layer with respect to a chlorine-based gas is no less than 6.7 times and no more than 15 times an etching rate of the multilayer film.
    Type: Application
    Filed: July 30, 2019
    Publication date: July 2, 2020
    Inventors: Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno, Akio Takada
  • Publication number: 20200132903
    Abstract: Provided are a polarizing plate having excellent optical properties and durability, and a method for manufacturing the polarizing plate. The polarizing plate includes: a transparent substrate transparent to light in a used wavelength band; lattice-shaped protrusions arranged on the transparent substrate at a pitch shorter than the wavelength of light in the used wavelength band, extending in a predetermined direction, and having a reflective layer, a first dielectric layer, an absorbing layer, and a second dielectric layer in this order; a dielectric portion consisting of a dielectric discontinuously formed on a surface of the lattice-shaped protrusions and a surface of a bottom floor between the lattice-shaped protrusions; and a water-repellent portion formed on a surface of the dielectric portion and having water-repellent properties.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 30, 2020
    Applicant: DEXERIALS CORPORATION
    Inventors: Kazuyuki SHIBUYA, Shigeshi SAKABARA, Toshiaki SUGAWARA, Yusuke MATSUNO, Akio TAKADA
  • Patent number: 10436964
    Abstract: Provided is an inorganic polarizing plate having a wire grid structure including: a transparent substrate; and grid-shaped protrusions arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band, in which the grid-shaped-protrusion includes, in order from the transparent substrate side, a reflection layer and a reflection suppressing layer which includes a dielectric material and a non-dielectric material and of which a content of the non-dielectric material increases as a separation from the reflection layer increases. In addition, provided are a method of manufacturing the inorganic polarizing plate and an optical instrument including the inorganic polarizing plate.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 8, 2019
    Assignee: Dexerials Corporation
    Inventors: Akio Takada, Seiji Kumagai, Hideto Sagawa, Takahiro Kimura, Kazuyuki Shibuya, Toshiaki Sugawara, Shigeshi Sakakibara, Yusuke Matsuno
  • Patent number: 10385076
    Abstract: A surface treatment agent including a compound (?) is provided. The compound (?) has one or more M-OH groups and/or groups capable of forming M-OH (wherein M represents a metal atom), an amino group and a triazine ring; wherein said amino group is bonded to a terminal; one or more said amino groups bonded to the terminal are present; and one or more said triazine rings are present.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 20, 2019
    Assignees: Sulfur Chemical Laboratory, Inc., Meiko Electronics Co., Ltd.
    Inventors: Kunio Mori, Yusuke Matsuno, Katsuhito Mori, Takahiro Kudo, Shuukichi Takii, Shigeru Michiwaki, Manabu Miyawaki, Masanori Yanai, Kouichi Kamiyama, Hitomi Chiba, Yasuyuki Masuda
  • Publication number: 20190094438
    Abstract: To provide a polarizing plate and an optical apparatus capable of improving durability while maintaining excellent optical characteristics. Provided is a polarizing plate 1 with a wire grid structure, including: a transparent substrate 10; and a grid-shaped convex portion 11 which is arranged on the transparent substrate 10 at a pitch P shorter than a wavelength of light of a use band, extends in a predetermined direction, and includes a reflection layer 12 formed of a light reflective material, wherein a surface of the grid-shaped convex portion 11 and a surface of a bottom surface portion of a groove formed between the grid-shaped convex portions 11 are provided with a protection film 20 which covers the surfaces thereof and the protection film 20 is formed by two kinds or more of protection films including an organic film formed of an organic material.
    Type: Application
    Filed: September 28, 2018
    Publication date: March 28, 2019
    Applicant: Dexerials Corporation
    Inventors: Akio Takada, Kazuyuki Shibuya, Shigeshi Sakakibara, Toshiaki Sugawara, Yusuke Matsuno
  • Publication number: 20180306404
    Abstract: There is provided a method to manufacture a diffuser plate with better productivity and exhibiting an excellent diffusion property and having excellent durability with respect to light having large coherence, the microlens array diffuser plate including: a microlens group positioned on a surface of a transparent substrate. The diffuser plate includes two or more unit cells that are continuously set in array, the unit cell includes a plurality of microlenses positioned on the surface of the transparent substrate, and ridge lines between the microlenses adjacent to each other are nonparallel to each other, and are nonparallel to the transparent substrate.
    Type: Application
    Filed: October 3, 2016
    Publication date: October 25, 2018
    Applicant: DEXERIALS CORPORATION
    Inventors: Naoki HANASHIMA, Akio TAKADA, Kazuyuki SHIBUYA, Yusuke MATSUNO
  • Publication number: 20180224589
    Abstract: Provided is an inorganic polarizing plate having a wire grid structure including: a transparent substrate; and grid-shaped protrusions arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band, in which the grid-shaped-protrusion includes, in order from the transparent substrate side, a reflection layer and a reflection suppressing layer which includes a dielectric material and a non-dielectric material and of which a content of the non-dielectric material increases as a separation from the reflection layer increases. In addition, provided are a method of manufacturing the inorganic polarizing plate and an optical instrument including the inorganic polarizing plate.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 9, 2018
    Applicant: Dexerials Corporation
    Inventors: Akio Takada, Seiji Kumagai, Hideto Sagawa, Takahiro Kimura, Kazuyuki Shibuya, Toshiaki Sugawara, Shigeshi Sakakibara, Yusuke Matsuno