Patents by Inventor Atsushi Uchida

Atsushi Uchida 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: 11119399
    Abstract: According to the present invention, provided is a mask blank (10), in which: a light shielding film (4) has a single layer structure or a laminate structure of a plurality of layers; at least one layer of the light shielding film (4) is formed of a material which contains a transition metal and silicon and is free from nitrogen and oxygen, or a material which contains a transition metal, silicon, and nitrogen and satisfies a condition of the following expression (1); a phase shift film (2) has a surface layer and a layer other than the surface layer; and the layer other than the surface layer is formed of a material which contains a transition metal, silicon, nitrogen, and oxygen, has a content of oxygen of 3 atom % or more, and satisfies a condition of the following expression (A). CN?9.0×10?6×RM4?1.65×10?4×RM3?7.718×10?2×RM2+3.611×RM?21.084?? Expression (1) 0.04×AS?0.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: September 14, 2021
    Assignee: HOYA CORPORATION
    Inventors: Atsushi Matsumoto, Hiroaki Shishido, Takashi Uchida
  • Publication number: 20210234684
    Abstract: There is provided an information processing system including: a first apparatus (10a) that divides a user key (UK) of a share-source user through a secret distribution process to generate a plurality of distribution keys (S1 and S2); a second apparatus (10b) that sends a processing request to execute a predetermined process by using one of a plurality of the distribution keys generated by the first apparatus; and a third apparatus (20) that makes a determination based on one of a plurality of the distribution keys generated by the first apparatus and the processing request received from the second apparatus.
    Type: Application
    Filed: May 22, 2019
    Publication date: July 29, 2021
    Applicant: SONY CORPORATION
    Inventors: Shinya MARUYAMA, Atsushi UCHIDA
  • Publication number: 20210118332
    Abstract: There is provided an information processing apparatus that generates an encrypted bit string (102) in which a hash value calculated by using keyed hashing from a keyword (101) for an information search is mapped into a bit string having a predetermined length, selects a predetermined number of bits from the encrypted bit string on the basis of a dynamically generated random number (103), inverts the predetermined number of selected bits, and sends the encrypted bit string and inverted-bit-number information to an external apparatus. The inverted-bit-number information indicates a number of bits inverted by a bit inverting unit (15).
    Type: Application
    Filed: May 28, 2019
    Publication date: April 22, 2021
    Inventors: ATSUSHI UCHIDA, SHINYA MARUYAMA
  • Patent number: 10921609
    Abstract: A diffuser plate capable of achieving excellent appearance quality when an image is projected. A transmissive diffuser plate including a microlens angle modulation distribution group provided on at least one of a light incident surface and a light emitting surface is provided. A microlens angle modulation distribution group includes a plurality of microlenses and an angle modulation part having an angle modulation distribution for angle-modulating a direction of main light emitted from each of the plurality of microlenses. When a ratio ?/P of a wavelength ? [?m] of the main light to an average arrangement period P [?m] of the microlens is denoted by ? [rad], and when the direction of the main light emitted from each of the plurality of microlenses is modulated by a modulation angle ? [rad], a ratio ?/? of the modulation angle ? to ? satisfies 0.1<?/?<10.0.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 16, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Atsushi Uchida, Masaru Karai, Koji Ishida
  • Patent number: 10877188
    Abstract: A composite diffuser plate capable of inhibiting luminance unevenness from occurring locally is described. The composite diffuser plate includes a first diffuser plate and a second diffuser plate arranged in this order from an incident side. At least one of the first diffuser plate and the second diffuser plate is composed of a random microlens array including multiple microlenses. The microlenses include a plurality of parameters defining a lens shape. At least one of the plural parameters is randomly distributed. The random microlens array causes a phase difference to be generated in transmitted light.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: December 29, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Junji Watanabe, Masaru Karai, Atsushi Uchida
  • Publication number: 20200400863
    Abstract: Provided is a diffuser plate that makes it possible to mitigate unevenness of luminance or unevenness of color while suppressing speckle noise of transmitted light or reflected light. The diffuser plate of the present invention includes a microlens array having a structure that creates an optical path length difference for incident light or reflected light, the microlenses having the same effective diameter. The microlens array constitutes a basic block structure in which periodic arrangement is provided with a period of an integer multiple of the effective diameter, a two-dimensional second periodic structure having a period that is N times the period of the microlens array in the basic periodic structure is configured by a repetitive arrangement of the basic blocks, and the microlenses are set to create an optical path length difference based upon a specific arrangement within the basic block structure.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 24, 2020
    Applicant: KURARAYCO., LTD.
    Inventors: Keisuke IKEDA, Atsushi UCHIDA, Masaru KARAI
  • Publication number: 20200284952
    Abstract: The present invention provides a diffuser plate whose luminance of emission light emitted from a microlens is even in a diffusion range. The diffuser plate comprises a projection side main surface, an emission side main surface, and a fine structure having a plurality of microlens shape parts with a microlens-like shape. A numerical aperture NA of the projection light is greater than 0 and 0.140 or less. An incident angle ?i formed by an optical axis of the projection light at the microlens shape part and a normal of the projection side main surface intersecting with each other is in a range of 0 to 50 degrees. At least one of the plurality of microlens shape parts emits the emission light at an emission angle ?o formed by the optical axis of the emission light and the normal of the projection side main surface intersecting with each other.
    Type: Application
    Filed: October 2, 2017
    Publication date: September 10, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masaru KARAI
  • Publication number: 20200117019
    Abstract: The present invention provides a diffuser plate in a simple structure capable of achieving optical properties with less luminance irregularity and color irregularity and good quality of appearance. A diffuser plate is a diffuser plate where a plurality of microlenses are placed on a principal surface, shapes of the plurality of microlenses along a cross-section perpendicular to the principal surface are different from one another and do not have an axis of symmetry. A method for designing the diffuser plate includes steps of determining a specific reference microlens; placing the reference microlens on the principal surface; forming a specific phase modulation shape; and determining a shape of the plurality of microlenses by combining the specific reference microlens and the specific phase modulation shape.
    Type: Application
    Filed: December 13, 2019
    Publication date: April 16, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masaru KARAI
  • Patent number: 10551633
    Abstract: The present invention provides a diffuser plate in a simple structure capable of achieving optical properties with less luminance irregularity and color irregularity and good quality of appearance. A diffuser plate is a diffuser plate where a plurality of microlenses are placed on a principal surface, shapes of the plurality of microlenses along a cross-section perpendicular to the principal surface are different from one another and do not have an axis of symmetry. A method for designing the diffuser plate includes steps of determining a specific reference microlens; placing the reference microlens on the principal surface; forming a specific phase modulation shape; and determining a shape of the plurality of microlenses by combining the specific reference microlens and the specific phase modulation shape.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: February 4, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Atsushi Uchida, Masaru Karai
  • Patent number: 10451778
    Abstract: The present invention provides a diffuser plate and a method for producing a diffuser plate that can improve variations in luminance of transmitted light or reflected light in a simple structure and that enable easy design and production.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 22, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Atsushi Uchida, Masashi Hirai, Masaru Karai
  • Publication number: 20190146237
    Abstract: The present disclosure provides a diffuser plate capable of achieving excellent appearance quality when an image is projected. A transmissive diffuser plate including a microlens angle modulation distribution group provided on at least one of a light incident surface and a light emitting surface is provided. A microlens angle modulation distribution group includes a plurality of microlenses and an angle modulation part having an angle modulation distribution for angle-modulating a direction of main light emitted from each of the plurality of microlenses. When a ratio ?/P of a wavelength ? [?m] of the main light to an average arrangement period P [?m] of the microlens is denoted by ? [rad], and when the direction of the main light emitted from each of the plurality of microlenses is modulated by a modulation angle ? [rad], a ratio ?/? of the modulation angle ? to ? satisfies 0.1<?/?<10.0.
    Type: Application
    Filed: April 25, 2017
    Publication date: May 16, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masaru KARAI, Koji ISHIDA
  • Patent number: 10126549
    Abstract: The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties, a placement step of placing a plurality of lens data (100) prepared in the lens data preparation step in a predetermined region (200), a cutting step of, when an overlap (210) of lenses (100) occurs in the placement step, cutting out a part (421) of a lens shape to eliminate the overlap (210), and a repositioning step of replicating a shape of the cutout part (421) and repositioning it to another place.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 13, 2018
    Assignee: KURARAY Co., Ltd.
    Inventors: Atsushi Uchida, Masashi Hirai, Masaru Karai
  • Publication number: 20180113240
    Abstract: The present disclosure provides a composite diffuser plate capable of inhibiting luminance unevenness from occurring locally. Provided is a composite diffuser plate (100, 200, 300) including a first diffuser plate (10) and a second diffuser plate (20, 30) arranged in this order from an incident side. At least one of the first diffuser plate (10) and the second diffuser plate (20, 30) is composed of a random microlens array (10) including a plurality of microlenses (12). The plurality of microlenses (12) include a plurality of parameters defining a lens shape. At least one of the plurality of parameters is randomly distributed. The random microlens array (10) causes a phase difference to be generated in transmitted light.
    Type: Application
    Filed: April 7, 2016
    Publication date: April 26, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Junji WATANABE, Masaru KARAI, Atsushi UCHIDA
  • Publication number: 20180106930
    Abstract: A diffuser plate includes a plurality of fine structures having two or more types of lens functions arranged on a main surface. Intensity of diffused light within a desired diffusion angle range is substantially uniform, and the diffuser plate satisfies a relation of P×P×Sk?400 [?m2], where P is an average pitch of the plurality of fine structures, Sk is a standard deviation of relative luminance of the plurality of fine structures in their front directions, P?200 [?m], and Sk?0.005. Thus, it is possible to provide a diffuser plate having a simple structure capable of achieving optical properties with little luminance and color unevenness and excellent appearance quality when an image is projected.
    Type: Application
    Filed: March 10, 2016
    Publication date: April 19, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masaru KARAI, Junji WATANABE
  • Publication number: 20170274407
    Abstract: Provided is a coating apparatus that allows high-quality coating by causing a coated object to pass through a falling curtain of paint without vibrating the coated object. A coating apparatus 1, which coats a surface of a plate-shaped coated object M, includes: a table 10, on which the coated object M is disposed; a flow coater head 20, from which a curtain of paint P falls; a gutter-shaped liquid receiver 30, which is disposed below the flow coater head 20 and which collects the paint P falling from the flow coater head 20; and a horizontal conveying portion 41, which conveys the table 10, on which the coated object M is disposed, in a horizontal direction to pass through the paint P falling from the flow coater head 20.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Applicant: Dexerials Corporation
    Inventors: Atsushi UCHIDA, Yukio SUYAMA, Seiji GUNJI, Nobuyuki GOSHIMA
  • Publication number: 20170235028
    Abstract: The present invention provides a diffuser plate and a method for producing a diffuser plate that can improve variations in luminance of transmitted light or reflected light in a simple structure and that enable easy design and production.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 17, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masashi HIRAI, Masaru KARAI
  • Publication number: 20170235154
    Abstract: The present invention provides a diffuser plate in a simple structure capable of achieving optical properties with less luminance irregularity and color irregularity and good quality of appearance. A diffuser plate is a diffuser plate where a plurality of microlenses are placed on a principal surface, shapes of the plurality of microlenses along a cross-section perpendicular to the principal surface are different from one another and do not have an axis of symmetry. A method for designing the diffuser plate includes steps of determining a specific reference microlens; placing the reference microlens on the principal surface; forming a specific phase modulation shape; and determining a shape of the plurality of microlenses by combining the specific reference microlens and the specific phase modulation shape.
    Type: Application
    Filed: September 30, 2015
    Publication date: August 17, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Atsushi UCHIDA, Masaru KARAI
  • Patent number: 9588567
    Abstract: A control apparatus that causes data in a first storage unit to be written in a second storage unit, with power supplied from a sub power supply, when supply of power from a main power supply is discontinued, the control apparatus includes a remaining feed duration obtaining unit that obtains remaining feed duration during which the sub power supply can supply the power; and a retry count setting unit that sets a maximum retry count for writing the data from the first storage unit to the second storage unit, based on the remaining feed duration obtained by the remaining feed duration obtaining unit, when an error occurs while the data is being written.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: March 7, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoko Kawano, Terumasa Haneda, Atsushi Uchida, Toshihiro Tomozaki
  • Publication number: 20170031156
    Abstract: The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties, a placement step of placing a plurality of lens data (100) prepared in the lens data preparation step in a predetermined region (200), a cutting step of, when an overlap (210) of lenses (100) occurs in the placement step, cutting out a part (421) of a lens shape to eliminate the overlap (210), and a repositioning step of replicating a shape of the cutout part (421) and repositioning it to another place.
    Type: Application
    Filed: April 9, 2015
    Publication date: February 2, 2017
    Applicant: KURARAY Co., Ltd.
    Inventors: Atsushi UCHIDA, Masashi HIRAI, Masaru KARAI
  • Patent number: 9338897
    Abstract: A ceramic substrate is provided that includes a ceramic substrate main body including a principal surface, a connecting terminal portion disposed on the principal surface of the ceramic substrate main body that is capable of being connected to another component via solder, the connecting terminal portion including a copper layer and a coating metal layer covering a surface of the copper layer; a contact layer of titanium or chromium disposed between the ceramic substrate main body and the connecting terminal portion; and an intermediate layer disposed between the copper layer of the connecting terminal portion and the contact layer, the intermediate layer including one of a titanium-tungsten alloy, a nickel-chromium alloy, tungsten, palladium, and molybdenum. The contact layer and the intermediate layer are set back from a side surface of the copper layer in a substrate plane direction.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 10, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yuma Otsuka, Kazunori Fukunaga, Atsushi Uchida, Kouhei Yoshimura