Patents by Inventor Naoki Okahata

Naoki Okahata 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: 11604514
    Abstract: Disclosed herein is a substrate for an electronic device. The substrate has a visually imperceptible surface texture that exhibits different coefficients of friction on various input objects. In some implementations, the texture of the textured substrate is created using a gas etching process.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: March 14, 2023
    Assignee: APPLE INC.
    Inventors: Naoto Matsuyuki, Dale N. Memering, Matthew S. Rogers, Victor Luzzato, Naoki Okahata
  • Patent number: 10590030
    Abstract: A glass plate includes a main surface, and a microscopic asperity surface disposed on the main surface, the microscopic asperity surface forming peaks and valleys. When a reference plane is defined as a plane at a center, in a direction of height, of an interval of highest frequency in a histogram of height of shape data of a square region having 2 ?m per side in the microscopic asperity surface, the number of peaks that are higher than the reference plane by 20% or more of a maximum height difference in the square region is in a range between 1 or more and 300 or less.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: March 17, 2020
    Assignee: AGC Inc.
    Inventors: Misa Inamoto, Naoki Okahata, Takashi Shibuya
  • Publication number: 20180288887
    Abstract: An electronic device includes a chassis having an opening; a display unit and a touch panel configured to be housed in the chassis; and a cover glass arranged on the opening having a main surface region configured to accommodate a display from the display unit and an input to the touch panel, and an end surface region corresponding to a side surface of the chassis. The end surface region includes a first region having a first surface roughness and configured to accommodate the input to the touch panel, and a second region having a second surface roughness that is different from the first surface roughness.
    Type: Application
    Filed: December 14, 2017
    Publication date: October 4, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Naoki OKAHATA, Yuki Aoshima, Yuki Akama, Misa Inamoto, Takashi Shibuya
  • Publication number: 20180273421
    Abstract: A glass plate includes a main surface, and a microscopic asperity surface disposed on the main surface, the microscopic asperity surface forming peaks and valleys. When a reference plane is defined as a plane at a center, in a direction of height, of an interval of highest frequency in a histogram of height of shape data of a square region having 2 ?m per side in the microscopic asperity surface, the number of peaks that are higher than the reference plane by 20% or more of a maximum height difference in the square region is in a range between 1 or more and 300 or less.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 27, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Misa INAMOTO, Naoki Okahata, Takashi Shibuya
  • Publication number: 20180170800
    Abstract: A laminated body includes a substrate provided with a first surface; a rugged layer including fluorine; and an antifouling layer. The rugged layer has an average surface roughness of 0.05-50 nm. A peak of a binding energy of F1s in the rugged layer falls within 684-687.5 eV, a ratio of atomic concentrations of fluorine to silicon obtained from peaks of binding energies of F1s and Si2p falls within 0.003-100. A peak of a binding energy of F1s in the antifouling layer falls within 687.5-691 eV. An F-value, (A?B)/(C?B), is 0.1 or more, where “A” is an F-K? line strength of the laminated body measured from the antifouling layer side by a fluorescent X-ray measurement device, “B” is an F-K? line strength of a glass plate with only trace amounts of fluorine, and “C” is an F-K? line strength of an aluminosilicate glass plate including fluorine of 2 wt %.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 21, 2018
    Applicant: Asahi Glass Company, Limited
    Inventors: Misa INAMOTO, Naoki OKAHATA, Yuki AOSHIMA
  • Patent number: 9663396
    Abstract: A glass sheet has one surface and the other surface facing the one surface in a thickness direction, wherein a fluorine concentration (average fluorine concentration by SIMS at a depth of 1 to 24 ?m) in the one surface is higher than that in the other surface. The following expression is satisfied: 0.07??F/?H2O. ?F (mol %) is a value obtained by subtracting an average fluorine concentration in the surface having the lower fluorine concentration from that in the surface having the higher fluorine concentration, and ?H2O (mol %) is an absolute value of a value obtained by subtracting an average H2O concentration in the surface having the higher fluorine concentration from that in the surface having the lower fluorine concentration.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 30, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi Miyasaka, Hideko Nakada, Yasuo Hayashi, Makoto Fukawa, Toshifumi Nihei, Masanobu Shirai, Naoki Okahata, Koji Nakagawa, Kazuhiko Yamanaka, Kunio Watanabe, Shiro Tanii, Nobuaki Ikawa, Daisuke Kobayashi, Junichi Miyashita, Ryosuke Kato
  • Patent number: 9484473
    Abstract: A glass substrate of which at least one surface multiple concave and convex portions. Rp representing the size of the convex portion is 37 nm to 200 nm; a tilt angle ?p indicating a maximum frequency in the frequency distribution of a tilt angle ? of the convex portion is 20° to 75°; and an absolute value of a difference between ?p and ?50 (?p??50) is 30° or less, where ?50 indicates a value showing 50% of a cumulative frequency distribution of the tilt angle ?. The concave and convex portion is such that the surface roughness (Ra) is 2 nm to 100 nm, the maximum height difference (P?V) is 35 nm to 400 nm, and the area ratio (S-ratio) is 1.1 to 3.0.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 1, 2016
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventor: Naoki Okahata
  • Publication number: 20150219801
    Abstract: A manufacturing method for a glass that has an antireflection property includes (a) a step of causing a process gas that includes a fluorine compound to contact a surface of a glass substrate within a temperature range of 250° C.-650° C. under an air atmosphere at an ordinary pressure, and (b) a step of forming a layer of an organic fluorine-containing compound on the surface.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Takashi SHIBUYA, Naoki OKAHATA
  • Patent number: 9090501
    Abstract: A method includes: forming at least one layer of a film formed of an inorganic material, that contains H atoms in a concentration of 1.0×1015 to 1.0×1019 atom/mm3, on at least a top surface of a glass substrate having a bottom surface to contact a molten metal during forming and the top surface facing the bottom surface, thereby reducing a warpage of the glass substrate caused by a chemical strengthening process performed after forming the at least one layer on the top surface of the glass substrate. The glass substrate is formed by a float process.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: July 28, 2015
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Naoki Okahata, Koji Nakagawa
  • Patent number: 9023480
    Abstract: A glass substrate for chemical strengthening is formed by a float process. The glass substrate includes at least one layer of a film formed of an inorganic material that contains H atoms in a concentration of 1.0×1015 to 1.0×1019 atom/mm3. The at least one layer is formed on at least one surface of the glass substrate.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 5, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Naoki Okahata, Koji Nakagawa, Yuichi Kuwahara, Daisuke Kobayashi
  • Publication number: 20150079347
    Abstract: A glass sheet has one surface and the other surface facing the one surface in a thickness direction, wherein a fluorine concentration (average fluorine concentration by SIMS at a depth of 1 to 24 ?m) in the one surface is higher than that in the other surface. The following expression is satisfied: 0.07??F/?H2O. ?F (mol %) is a value obtained by subtracting an average fluorine concentration in the surface having the lower fluorine concentration from that in the surface having the higher fluorine concentration, and ?H2O (mol %) is an absolute value of a value obtained by subtracting an average H2O concentration in the surface having the higher fluorine concentration from that in the surface having the lower fluorine concentration.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 19, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi MIYASAKA, Hideko NAKADA, Yasuo HAYASHI, Makoto FUKAWA, Toshifumi NIHEI, Masanobu SHIRAI, Naoki OKAHATA, Koji NAKAGAWA, Kazuhiko YAMANAKA, Kunio WATANABE, Shiro TANII, Nobuaki IKAWA, Daisuke KOBAYASHI, Junichi MIYASHITA, Ryosuke KATO
  • Publication number: 20150072129
    Abstract: A glass sheet includes 4 mol % or more of Al2O3. In the glass sheet, a surface Na2O amount in one surface of the glass sheet is lower than the surface Na2O amount in the other surface of the glass sheet by 0.2 mass % to 1.2 mass %.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 12, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Naoki OKAHATA, Koji NAKAGAWA, Kazuhiko YAMANAKA, Kunio WATANABE, Shiro TANII, Nobuaki IKAWA, Daisuke KOBAYASHI, Junichi MIYASHITA, Ryosuke KATO, Toshifumi NIHEI, Yoichi SERA, Yasuo HAYASHI, Makoto FUKAWA
  • Publication number: 20140305165
    Abstract: A method includes: forming at least one layer of a film formed of an inorganic material, that contains H atoms in a concentration of 1.0×1015 to 1.0×1019 atom/mm3, on at least a top surface of a glass substrate having a bottom surface to contact a molten metal during forming and the top surface facing the bottom surface, thereby reducing a warpage of the glass substrate caused by a chemical strengthening process performed after forming the at least one layer on the top surface of the glass substrate. The glass substrate is formed by a float process.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Naoki OKAHATA, Koji NAKAGAWA
  • Publication number: 20140302330
    Abstract: A glass substrate for chemical strengthening is formed by a float process. The glass substrate includes at least one layer of a film formed of an inorganic material that contains H atoms in a concentration of 1.0×1015 to 1.0×1019 atom/mm3. The at least one layer is formed on at least one surface of the glass substrate.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Applicant: Asahi Glass Company, Limited
    Inventors: Naoki OKAHATA, Koji Nakagawa, Yuichi Kuwahara, Daisuke Kobayashi
  • Publication number: 20140246084
    Abstract: A glass substrate of which at least one surface multiple concave and convex portions. Rp representing the size of the convex portion is 37 nm to 200 nm; a tilt angle ?p indicating a maximum frequency in the frequency distribution of a tilt angle ? of the convex portion is 20° to 75°; and an absolute value of a difference between ?p and ?50 (?p??50) is 30° or less, where ?50 indicates a value showing 50% of a cumulative frequency distribution of the tilt angle ?. The concave and convex portion is such that the surface roughness (Ra) is 2 nm to 100 nm, the maximum height difference (P?V) is 35 nm to 400 nm, and the area ratio (S-ratio) is 1.1 to 3.0.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 4, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventor: Naoki OKAHATA
  • Patent number: 7906732
    Abstract: Provided is a process for producing a glass plate with a conductive printed wire, which does not require a screen plate for each model, facilitates adjustments for desired heat generation performance or antenna performance, has an excellent adhesion to a glass plate surface, and minimizes surface roughness. The process for producing a glass plate with a conductive printed wire is characterized in that a laminate comprising a layer obtained by electro printing a first conductive toner having a number standard average particle size (D50) of 10 ?m<D50?50 ?m and a layer obtained by electro printing a second conductive toner having a particle size (D50) of 5 ?m?D50?10 ?m is formed on a surface of a glass plate and the glass plate is heated to fire the toners to thereby form a conductive printed wire having a predetermined pattern on the surface of the glass plate.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: March 15, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Naoki Okahata, Satoshi Kashiwabara, Kazuo Sunahara, Tomoaki Okada, Katsuhiko Takeda
  • Patent number: 7892715
    Abstract: A color toner for electro printing, which comprises from 10 to 50 parts by mass of fine inorganic pigment particles, from 5 to 40 parts by mass of a heat decomposable binder resin having an acid value of at least 5, and from 40 to 85 parts by mass of glass frit, per 100 parts by mass of the total solid content of the toner.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 22, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Naoki Okahata, Satoshi Kashiwabara, Kazuo Sunahara
  • Patent number: 7754405
    Abstract: Toners having toner matrix particles having conductive fine particles, a heat decomposable binder resin and glass frit, and heat decomposable organic resin fine particles attached on the surface of the toner matrix particles. The heat decomposition temperature of the organic resin in the heat decomposable organic resin fine particles is lower than the heat decomposition temperature of the heat decomposable binder resin.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: July 13, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Satoshi Kashiwabara, Kazuo Sunahara, Naoki Okahata
  • Patent number: 7704660
    Abstract: To provide a process for producing a glass plate having an electric conductor pattern excellent in adhesion to the surface of the glass plate, whereby it is not required to have a screen ready for every model and adjustment to desired electric heating performance and antenna performance is easy, and a developer therefor. A developer for electronic printing, characterized in that the ratio of Ftc/Ftp is at least 2.5, where Ftc is the adhesive force acting between one toner particle containing conductive fine particles and one carrier, and Ftp is the adhesive force acting between one toner particle containing conductive fine particles and a photoconductor.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: April 27, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Satoshi Kashiwabara, Naoki Okahata, Kazuo Sunahara
  • Publication number: 20090183828
    Abstract: It is an object of the present invention to provide a process for producing a glass plate provided with a ceramic color print, whereby a ceramic color print having a small color difference can be formed on a glass plate with good adhesion. A process for producing a glass plate provided with a ceramic color print, wherein a ceramic color print is formed on a glass plate, which comprises a step of forming a laminate having first and second layers laminated by printing on a glass plate, and a step of baking the glass plate having the laminate formed thereon, wherein the first layer is formed by electro printing by using a first ceramic color toner, the second layer is formed by electro printing by using a second ceramic color toner, and the first ceramic color toner has a number average particle size D50 which is larger than D50 of the second ceramic color toner.
    Type: Application
    Filed: December 3, 2008
    Publication date: July 23, 2009
    Applicant: Asahi Glass Company, Limited
    Inventors: Naoki OKAHATA, Satoshi KASHIWABARA