Patents by Inventor Keisuke Okada

Keisuke Okada 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: 10488609
    Abstract: An intermittent-connection-type optical fiber ribbon in which a plurality of optical fiber core wires are disposed in parallel, and which includes: a connecting part where adjacent optical fiber core wires are connected; and a non-connecting part where adjacent optical fiber core wires are not connected, the connecting parts and the non-connecting parts are provided intermittently in a longitudinal direction, the non-connecting parts are not provided in the longitudinal direction between two the optical fiber core wires, the connecting part is recessed, and in a case where, in the longitudinal direction, a is length of the connecting part, b is length of a part where the non-connecting part between different optical fiber core wires overlap, c is length of the non-connecting part, and p is an interval of the connecting parts, c/a?1.5, b?50 mm, and (c/a)×p?200 mm are set.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 26, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Fumiaki Sato, Kenta Tsuchiya, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki
  • Publication number: 20190302432
    Abstract: A zoom lens including a front group and a rear group, wherein a lens group arranged on an object side of a widest air interval at a wide-angle end is defined as the front group and a lens group arranged on an image side of the widest air interval at the wide-angle end is defined as the rear group, the front group having a negative refractive power, the rear group having a positive refractive power. Changing focal length from the wide-angle end to the telephoto end is performed by changing an air interval between the lens groups.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 3, 2019
    Inventors: Yoshito Iwasawa, Hisayuki Yamanaka, Keisuke Okada, Junichi Yamazoe
  • Patent number: 10416403
    Abstract: An optical fiber cable includes optical fiber ribbons of no less than 12, a slot rod including slot grooves in which the optical fiber ribbons are housed, a tension member, and a cable sheath. The optical fiber ribbons include, at a part of or through all of the optical fiber core wires, in a state where the optical fiber core wires are arranged in parallel, a connecting part where adjacent optical fiber core wires are connected and a non-connecting part where adjacent optical fiber core wires are not connected, which are provided intermittently in a longitudinal direction. A relationship between the number “x” of the optical fiber core wires housed in the optical fiber cable and flexural rigidity “y” (N·mm2) of the optical fiber cable satisfies following Expression 1. y?3e0.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: September 17, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Keisuke Okada, Fumiaki Sato, Yoshiaki Nagao, Nobuyuki Suzuki
  • Patent number: 10378195
    Abstract: A flush toilet having a bowl portion including a waste receiving surface, a rim portion, a shelf portion, and a concave portion; a discharge passage for discharging waste; a first spout port for spouting flush water on a shelf portion of the bowl portion to form a circulating flow; a second spout port for spouting flush water in the same direction as the circulating direction of flush water spouted from a first spout port and toward the rear of the bowl portion; a first water conduit for supplying flush water to the first spout port; and a second water conduit for supplying flush water to the second spout port. The first and second water conduits are formed so that the flow rate of flush water spouted from the second spout port is greater than the flow rate of flush water spouted from the first spout port.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: August 13, 2019
    Assignee: Toto Ltd.
    Inventors: Shinichi Urata, Keisuke Okada
  • Patent number: 10345854
    Abstract: There is provided a head mounted display comprising: an interface unit to which a cartridge can be connected; and at least one controller configured to activate a predetermined operation mode according to information acquired from the cartridge when the cartridge is connected to the interface unit.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 9, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Tomohiro Degawa, Kouichirou Fujihara, Keisuke Okada, Jun Matsuzawa, Yoshiteru Kurosaki, Susumu Ozawa, Shingo Ito
  • Patent number: 10338640
    Abstract: There is provided a head mounted display comprising: an interface unit configured to be connected with a cartridge; a determinator configured to determine whether the head mounted display is inside a specific area or not when the cartridge is connected to the interface unit; and at least one controller configured to execute, when the determinator determines that the head mounted display is inside the specific area, an application based on first data that is acquired from the cartridge, and to execute, when the determinator determines that the head mounted display is not inside the specific area, another application based on second data that is acquired from the cartridge.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: July 2, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Jun Matsuzawa, Keisuke Okada, Tomohiro Degawa, Yoshiteru Kurosaki, Kouichirou Fujihara, Shingo Ito, Susumu Ozawa
  • Patent number: 10289161
    Abstract: A head-mounted display includes an interface capable of connecting thereto a cartridge of which a return condition is recorded, and a controller configured to determine whether, when the cartridge is connected to the interface, the return condition has been satisfied. When it is determined that the return condition has been satisfied, the controller is configured to execute notification for requesting a user to return the cartridge.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: May 14, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Jun Matsuzawa, Kouichirou Fujihara, Keisuke Okada, Tomohiro Degawa, Yoshiteru Kurosaki, Susumu Ozawa, Shingo Ito
  • Patent number: 10288883
    Abstract: In one aspect, a head-mounted display includes displays, a front portion formed in such a manner as to surround at least a part of peripheral portions of the displays, and at least one temple portion connected to the front portion. An interface capable of connecting a cartridge thereto is provided in the at least one temple portion.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: May 14, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Susumu Ozawa, Keisuke Okada, Kouichirou Fujihara, Yoshiteru Kurosaki, Tomohiro Degawa, Jun Matsuzawa, Shingo Ito
  • Patent number: 10268009
    Abstract: An optical fiber cable comprises optical units having a plurality of optical fiber ribbons, a slot rod having a plurality of slot grooves in which the optical units are accommodated, and a cable sheath configured to cover an outer side of the slot rod, each of the optical fiber ribbons is intermittently provided with coupling portions, at which adjacent optical fibers are coupled therebetween, and non-coupling portions, at which adjacent optical fibers are not coupled therebetween, in a longitudinal direction between a part or all of the optical fibers in a state where the plurality of optical fibers is arranged in parallel, and an outer diameter of the optical fiber cable is 35 mm or less and a number of the optical fibers in the optical unit accommodated in one slot groove is 100 or more.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 23, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki Sato, Kenta Tsuchiya, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki
  • Patent number: 10268015
    Abstract: This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 23, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki Sato, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki
  • Publication number: 20190064462
    Abstract: An optical fiber cable includes optical fiber ribbons of no less than 12, a slot rod including slot grooves in which the optical fiber ribbons are housed, a tension member, and a cable sheath. The optical fiber ribbons include, at a part of or through all of the optical fiber core wires, in a state where the optical fiber core wires are arranged in parallel, a connecting part where adjacent optical fiber core wires are connected and a non-connecting part where adjacent optical fiber core wires are not connected, which are provided intermittently in a longitudinal direction. A relationship between the number “x” of the optical fiber core wires housed in the optical fiber cable and flexural rigidity “y” (N·mm2) of the optical fiber cable satisfies following Expression 1. y?3e0.
    Type: Application
    Filed: February 8, 2017
    Publication date: February 28, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Keisuke OKADA, Fumiaki SATO, Yoshiaki NAGAO, Nobuyuki SUZUKI
  • Patent number: 10209521
    Abstract: A head-mounted display according to one aspect includes an interface capable of connecting a cartridge, and a controller configured to execute an application based on data obtained from the cartridge when the cartridge is connected to the interface. The controller is configured to explore other devices existing within an interconnectable area in executing the application, and communicate and connect with other devices associated to the application among other explored devices.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 19, 2019
    Assignee: KYOCERA CORPORATION
    Inventors: Keisuke Okada, Kouichirou Fujihara, Yoshiteru Kurosaki, Tomohiro Degawa, Jun Matsuzawa, Susumu Ozawa, Shingo Ito
  • Publication number: 20190049707
    Abstract: The present invention provides a zoom lens that can perform favorable correction of chromatic aberration in the entire zoom range, and can have higher performance and a smaller size than conventional ones; and an imaging apparatus including the zoom lens. To achieve the object, provided are a zoom lens and an imaging apparatus including the zoom lens. The zoom lens includes, in order from an object side: a positive first lens group G1; a negative second lens group G2; and a GR group including one or more lens groups. In the zoom lens, changing focal length is performed by varying intervals between the lens groups. The GR group has at least two cemented surfaces having negative refractive power, convex lenses GpH and GpL satisfying predetermined conditional expressions. An aperture stop is arranged in the first lens group or after. The zoom lens satisfies predetermined conditional expressions.
    Type: Application
    Filed: April 25, 2018
    Publication date: February 14, 2019
    Inventor: Keisuke Okada
  • Publication number: 20190049706
    Abstract: An object of the present invention is to provide a zoom lens that can perform favorable correction of chromatic aberration in the entire zoom range, and can have higher performance and a smaller size than conventional ones; and an imaging apparatus including the zoom lens. To achieve the object, provided are a zoom lens and an imaging apparatus including the zoom lens. The zoom lens includes, in order from an object side: a positive first lens group G1; a negative second lens group G2; and a GR group including one or more lens groups. In the zoom lens, changing focal length is performed by varying intervals between the lens groups. The GR group includes convex lenses GpH and GpL satisfying predetermined conditional expressions. The convex lens GpH is the positive lens which is arranged second position or after from the object side in positive lenses in the GR group.
    Type: Application
    Filed: April 25, 2018
    Publication date: February 14, 2019
    Inventor: Keisuke Okada
  • Publication number: 20190037188
    Abstract: An unevenness correction system according to the present invention includes a panel drive circuit provided with a gamma correction circuit that performs gamma correction on an image signal input to an input interface, a gamma correction information acquisition circuit that acquires a gamma correction signal obtained through gamma correction as gamma correction information, an unevenness correction circuit that performs an unevenness correction on the gamma correction signal based on correction data, and an output interface that externally outputs the gamma correction information, and an unevenness correction apparatus provided with a pattern generator that outputs the image signal of a predetermined image to the input interface, and a control unit that generates correction data based on gamma correction information of each individual display panel input to and read by a gamma correction information reading unit from the output interface regarding the output image signal.
    Type: Application
    Filed: December 19, 2016
    Publication date: January 31, 2019
    Applicant: IIX INC.
    Inventors: Makoto Hatakenaka, Takashi Sakamoto, Keisuke Okada
  • Publication number: 20190011656
    Abstract: Provided is an optical fiber cable whereby macrobend loss can be suppressed even when ribbons are mounted at high density in grooves. An optical fiber cable provided with optical units in which ribbons each having a plurality of optical fiber cores arranged in parallel are collected, a slot rod having a plurality of grooves for accommodating optical units, a tension member on which tension is applied, and a cable jacket for covering the outside of the slot rod. Each of the optical units is accommodated in the corresponding groove in a stranded state, and the occupancy of the optical units calculated from the cross-sectional area of the optical units with respect to the cross-sectional area of the groove is 25% to 65%.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 10, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki SATO, Keisuke OKADA, Yoshiaki NAGAO, Kenta TSUCHIYA, Nobuyuki SUZUKI
  • Publication number: 20180348464
    Abstract: This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.
    Type: Application
    Filed: January 26, 2017
    Publication date: December 6, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki SATO, Keisuke OKADA, Yoshiaki NAGAO, Nobuyuki SUZUKI
  • Publication number: 20180321454
    Abstract: An intermittent-connection-type optical fiber ribbon includes: a plurality of optical fiber core wires that are disposed in parallel; a connecting resin that is coated on surfaces of the plurality of optical fiber core wires; and slits that are provided intermittently in the connecting resin partially between the optical fiber core wires in a longitudinal direction, and a marking is on the connecting resin.
    Type: Application
    Filed: December 22, 2016
    Publication date: November 8, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki SATO, Keisuke OKADA, Yoshiaki NAGAO, Nobuyuki SUZUKI, Yuuki SHIMODA
  • Publication number: 20180321453
    Abstract: An optical fiber cable comprises optical units having a plurality of optical fiber ribbons, a slot rod having a plurality of slot grooves in which the optical units are accommodated, and a cable sheath configured to cover an outer side of the slot rod, each of the optical fiber ribbons is intermittently provided with coupling portions, at which adjacent optical fibers are coupled therebetween, and non-coupling portions, at which adjacent optical fibers are not coupled therebetween, in a longitudinal direction between a part or all of the optical fibers in a state where the plurality of optical fibers is arranged in parallel, and an outer diameter of the optical fiber cable is 35 mm or less and a number of the optical fibers in the optical unit accommodated in one slot groove is 100 or more.
    Type: Application
    Filed: January 26, 2017
    Publication date: November 8, 2018
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Fumiaki SATO, Kenta TSUCHIYA, Keisuke OKADA, Yoshiaki NAGAO, Nobuyuki SUZUKI
  • Publication number: 20180314020
    Abstract: An intermittent-connection-type optical fiber ribbon in which a plurality of optical fiber core wires are disposed in parallel, and which includes: a connecting part where adjacent optical fiber core wires are connected; and a non-connecting part where adjacent optical fiber core wires are not connected, the connecting parts and the non-connecting parts are provided intermittently in a longitudinal direction, the non-connecting parts are not provided in the longitudinal direction between two the optical fiber core wires, the connecting part is recessed, and in a case where, in the longitudinal direction, a is length of the connecting part, b is length of a part where the non-connecting part between different optical fiber core wires overlap, c is length of the non-connecting part, and p is an interval of the connecting parts, c/a?1.5, b?50 mm, and (c/a)×p?200 mm are set.
    Type: Application
    Filed: January 11, 2017
    Publication date: November 1, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki SATO, Kenta TSUCHIYA, Keisuke OKADA, Yoshiaki NAGAO, Nobuyuki SUZUKI