Patents by Inventor Keiichi Okamoto

Keiichi Okamoto 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: 10882074
    Abstract: FF properties of a multilayer coating film configured to exhibit a red color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) is configured such that Y(10°) is 50 or more and 950 or less and that Y(25°) is 0.05 or more and 0.35 or less times the Y(10°), where Y(10°) represents a Y value, of an XYZ color system, of reflected light measured at a light receiving angle of 10° and Y(25°) represents a Y value of the reflected light measured at the light receiving angle of 25° in a case where a light incident angle is 45°. An inclination of a tangent to the spectrum of the spectral transmittance of the colored layer (15) at the wavelength of 620 nm is 0.012 nm?1 or more and 0.03 nm?1 or less, defined as an absolute value.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 5, 2021
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Publication number: 20200353505
    Abstract: A multilayer coating film includes a colored base layer 14 formed directly or indirectly on a surface of a coating target 11, and a luster material-containing layer 15 layered on the colored base layer 14 and containing flaked luster materials 22 and a colorant 23. With respect to the luster material-containing layer 15 in a state without the colorant, Y(10°) of the XYZ color system is set to be 50 or more and 850 or less, and Y(20°) is set to be equal to k×Y(10°), where k is in a range of 0.2?k?0.6 and is determined according to the Y(10°). The colorant concentration C of the luster material-containing layer is determined according to k. The surface reflectance R(%) of the colored base layer is determined according to the colorant concentration C of the luster material-containing layer and the Y(10°).
    Type: Application
    Filed: January 23, 2018
    Publication date: November 12, 2020
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Patent number: 10676622
    Abstract: FF properties of a multilayer coating film configured to exhibit a warm color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) contains, in a mixed state, a high-reflection flake (21) having a visible light reflectance of 90 % or more and a low-reflection flake (22) having a visible light reflectance that is half (i.e., ½) or smaller than the visible light reflectance of the high-reflection flake (21) as the luster material. When both of the high-reflection flake (21) and the low-reflection flake (22) are projected on a bottom of the lustrous layer (14), a ratio of a projected area of the flakes (21) and (22) on the bottom of the lustrous layer (14) is 100 %.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 9, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto, Ryuji Nonaka
  • Publication number: 20200070561
    Abstract: A sheet bundle discharging apparatus including: a conveyance belt configured to convey and discharge a sheet bundle in a conveyance direction; an attitude changing unit configured to change an attitude of the sheet bundle from a first attitude in which the sheet bundle is apart from the conveyance belt to a second attitude in which the sheet bundle is placed on the conveyance belt; and a receiving member configured to receive an end portion of the sheet bundle, wherein the attitude changing unit allows the end portion of the sheet bundle to pass through a region in which the conveyance belt is provided, in a belt width direction perpendicular to the conveyance direction, and thereafter reach a region in which the receiving member is provided, a friction coefficient between the sheet bundle and the receiving member being smaller than a friction coefficient between the sheet bundle and the conveyance belt.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 5, 2020
    Inventors: Koji Okamoto, Keiichi Nagasawa, Dai Matsubara, Isao Itagaki
  • Publication number: 20200040308
    Abstract: Media which contain 4-tryptophan or an L-tryptophan derivative at a concentration of not less than 176 ?M are useful for culturing pluripotent stem cells.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 6, 2020
    Applicants: AJINOMOTO CO., INC., KEIO UNIVERSITY
    Inventors: Kotoe KOSEKI, Satoru OKAMOTO, Shugo TOHYAMA, Jun FUJITA, Keiichi FUKUDA, Shota SOMEYA
  • Publication number: 20190099781
    Abstract: FF properties of a multilayer coating film configured to exhibit a red color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) is configured such that Y(10°) is 50 or more and 950 or less and that Y(25°) is 0.05 or more and 0.35 or less times the Y(10°), where Y(10°) represents a Y value, of an XYZ color system, of reflected light measured at a light receiving angle of 10° and Y(25°) represents a Y value of the reflected light measured at the light receiving angle of 25° in a case where a light incident angle is 45°. An inclination of a tangent to the spectrum of the spectral transmittance of the colored layer (15) at the wavelength of 620 nm is 0.012 nm?1 or more and 0.03 nm?1 or less, defined as an absolute value.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 4, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO, Ryuji NONAKA
  • Publication number: 20190092947
    Abstract: FF properties of a multilayer coating film configured to exhibit a warm color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) contains, in a mixed state, a high-reflection flake (21) having a visible light reflectance of 90% or more and a low-reflection flake (22) having a visible light reflectance that is half (i.e., ½) or smaller than the visible light reflectance of the high-reflection flake (21) as the luster material. When both of the high-reflection flake (21) and the low-reflection flake (22) are projected on a bottom of the lustrous layer (14), a ratio of a projected area of the flakes (21) and (22) on the bottom of the lustrous layer (14) is 100%.
    Type: Application
    Filed: September 30, 2016
    Publication date: March 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO, Ryuji NONAKA
  • Patent number: 10220598
    Abstract: An multi-layer coating film 12 includes: a luster coat 15 containing a luster material; a color coat 16 applied on the luster coat 15, containing a pigment 21, and having translucency; and a coloring flake 22 included in the luster coat 15 and acting as the luster material to color a surface of a luster flake with a coloring material in the same type of color as a color type of the color coat 16.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: March 5, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takakazu Yamane, Keiichi Okamoto, Kouji Teramoto
  • Publication number: 20190054498
    Abstract: The multilayer coating film 12 includes a lower coating film 14 and an upper coating film 15. The lightness L* value of the coating film 14 is 30 or less. The coating film 15 contains aluminum flakes 22. The aluminum flakes 22 each have a surface roughness Ra of 30 nm or less and having a thickness of 70 to 150 nm. With respect to the aluminum flakes contained in the coating film 14, 70% by mass or more thereof has a major axis length of 7 to 15 ?m and an aspect ratio of 3 or less. When all the aluminum flakes 22 contained in the coating film 15 are projected on a surface of the coating film 15, a projected area occupancy, which is an area occupancy of the projections of the aluminum flakes 22 on the surface of the coating film 15, is 40 to 90%.
    Type: Application
    Filed: February 23, 2017
    Publication date: February 21, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Publication number: 20190047270
    Abstract: FF properties of a multilayer coating film configured to exhibit a warm color through a lustrous layer (14) and a translucent colored layer (15) are improved to achieve a metallic textured color having a high-quality color tone. The lustrous layer (14) is configured such that Y(10°) is 50 or more and 950 or less and that Y(25°) is 0.05 or more and 0.35 or less times the Y(10°), where Y(10°) represents a Y value, of an XYZ color system, of reflected light measured at a light receiving angle of 10° and Y(25°) represents a Y value of the reflected light measured at the light receiving angle of 25° in a case where a light incident angle is 45°. A concentration C of a warm color pigment of the colored layer (15) is 1% by mass or more and 17% by mass or less.
    Type: Application
    Filed: September 30, 2016
    Publication date: February 14, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO, Ryuji NONAKA
  • Publication number: 20180304305
    Abstract: A metallic base coating film 15 is stacked on a colored base coating film 14 provided on a surface of an article to be coated. While the colored base coating film 14 alone is formed on the surface of the article to be coated, a light reflectance at light receiving angles of 15° and 45° is measured to be 2% or below in a wavelength ranging from 450 nm to 700 nm inclusive. On the metallic base coating film 15 alone, the light reflectance measured at the light receiving angle of 15° ranges from 20% to 50% inclusive in the wavelength ranging from 450 nm to 700 nm inclusive, and the light reflectance measured at the light receiving angle of 45° is 2.5% or below in the wavelength ranging from 450 nm to 700 nm inclusive.
    Type: Application
    Filed: November 28, 2016
    Publication date: October 25, 2018
    Applicant: Mazda Motor Corporation
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Publication number: 20180194111
    Abstract: The flip-flop properties and the metallic impression are enhanced in a metallic coating. The coating includes a colored base layer formed directly or indirectly on a surface of a coating target, and a bright material-containing layer layered on the colored base layer and containing flaked bright materials and a colorant. The thickness of the bright material-containing layer is 1.5 ?m or more and 6 ?m or less. When all the bright materials present in the bright material-containing layer are projected on a surface of the bright material-containing layer, an area occupancy of projections of the bright materials with respect to the surface of the bright material-containing layer is 30% or more and 90% or less.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 12, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Publication number: 20180193878
    Abstract: The flip-flop properties and the metallic impression are enhanced in a metallic coating. The coating includes a colored base layer formed directly or indirectly on a surface of a coating target, and a bright material-containing layer containing flaked bright materials and a colorant and layered on the colored base layer. With respect to the bright material-containing layer in a state without the colorant, Y(10°) of the XYZ color system is set to be 50 or more and 850 or less, and Y(20°) is set to be equal to k×Y(10°), where k is in a range of 0.2?k?0.6 and is determined according to the Y(10°). The colorant concentration of the bright material-containing layer is determined according to k.
    Type: Application
    Filed: June 22, 2016
    Publication date: July 12, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Kouji TERAMOTO, Fumi HIRANO, Keiichi OKAMOTO
  • Publication number: 20170291401
    Abstract: An multi-layer coating film 12 includes: a luster coat 15 containing a luster material; a color coat 16 applied on the luster coat 15, containing a pigment 21, and having translucency; and a coloring flake 22 included in the luster coat 15 and acting as the luster material to color a surface of a luster flake with a coloring material in the same type of color as a color type of the color coat 16.
    Type: Application
    Filed: November 2, 2015
    Publication date: October 12, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO
  • Publication number: 20170218206
    Abstract: A multilayer coating film 12 includes a bright layer 15 and a colored layer 16 superposed on the bright layer 15, the bright layer 15 including aluminum flakes 22, and the colored layer 16 including a black pigment 23 dispersed in the colored layer 16. The black pigment 23 in the colored layer 16 has a particle size distribution with a peak at a particle size of 200 nm or lower.
    Type: Application
    Filed: November 2, 2015
    Publication date: August 3, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takakazu YAMANE, Keiichi OKAMOTO, Kouji TERAMOTO
  • Patent number: 9409198
    Abstract: The invention is a method, an apparatus, and a coated product-manufacturing method each capable of applying a coating solution to a flexible backing sheet using a die coater while preventing contaminants from forming defects. A virtual line L is drawn to pass through the discharge port 74 of the die coater 7 and to extend perpendicular to the backing sheet 1, the distance D1 between a starting line P1 and a boundary line P2 is 50 mm or less, and the distance between the starting line P1 and a line on the roller P3 is 5 ?m or more.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: August 9, 2016
    Assignee: NITTO DENKO CORPORATION
    Inventors: Toshitsugu Hosokawa, Keiichi Okamoto, Satoru Yamamoto
  • Publication number: 20130243957
    Abstract: The invention is a method, an apparatus, and a coated product-manufacturing method each capable of applying a coating solution to a flexible backing sheet using a die coater while preventing contaminants from forming defects.
    Type: Application
    Filed: November 24, 2011
    Publication date: September 19, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Toshitsugu Hosokawa, Keiichi Okamoto, Satoru Yamamoto
  • Publication number: 20100169484
    Abstract: A server controlling each computer is provided with means for distributing file patterns for identifying unauthorized communication programs. Said computer is provided with a filtering module for performing monitoring and regulation processing on communications originating from the computer. Said filtering module is provided with a database for storing the file patterns acquired from the server, means for monitoring the communications of a communication module started by the computer and detecting the occurrence of a communication start request to other computers, means for comparing the file pattern of the communication module to the file patterns within the database and inspecting whether or not the communication module is an unauthorized communication program, and means for regulating the communications of the communication module when the inspection means has judged it to be an unauthorized communication program.
    Type: Application
    Filed: December 15, 2005
    Publication date: July 1, 2010
    Inventors: Keiichi Okamoto, Ryu Naeki
  • Publication number: 20100169472
    Abstract: A centralized control server for controlling each computer includes a step for setting monitoring rules including warning conditions and processing forms at the time of warning for web accesses which are improper from a business or educational point of view. A client computer is provided with a filtering module for monitoring web accesses. Said filtering module includes a step for analyzing the communication contents of the client computer and detecting the occurrence of a web access to an object to be monitored prescribed by the monitoring rules, a step for counting an access quantity at the time of detection of the web access, and a step for issuing warning processing in real time to a user or an administrator in accordance with the processing forms at the time of warning when it is judged that the access quantity has reached an upper limit value prescribed by the warning conditions.
    Type: Application
    Filed: December 15, 2005
    Publication date: July 1, 2010
    Inventors: Keiichi Okamoto, Ryu Naeki
  • Publication number: 20070243367
    Abstract: A method of manufacturing an optical functional film including an application step of applying a resin solution onto a substrate film made of a thermoplastic resin and an immobilizing step of immobilizing a resin applied to form a resin layer, characterized by that it further comprises, prior to the application step, a stretching step of stretching the substrate film with the substrate film kept heated.
    Type: Application
    Filed: July 3, 2006
    Publication date: October 18, 2007
    Applicant: Nitto Denko Corporation
    Inventors: Wataru Nagatake, Seiji Kondou, Keiichi Okamoto, Ryouichi Takamura