Patents by Inventor Tomoki Ito

Tomoki Ito 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).

  • Publication number: 20220121235
    Abstract: The energy management system performs forecast of power consumption of the load of each of the first consumer and the second consumer; calculates a self-sufficiency rate of entirety of both the first consumer and the second consumer, based on self-sufficient electric power supplied to the load in accordance with the forecast of power consumption and on purchase electric power supplied from the electric power system to the load; and provides interchange control of energy so that at least a part of electric power generated by the renewable energy power generator of the second consumer is accumulated in the energy accumulator of the first consumer so that the self-sufficiency rate exceeds a threshold value.
    Type: Application
    Filed: January 23, 2020
    Publication date: April 21, 2022
    Inventors: Takehiko ISE, Tomoki ITO, Atsushi SHIMIZU
  • Publication number: 20220121020
    Abstract: A zoom optical system (ZL) comprises, in order from an object: a first lens group (G1) having a positive refractive power; and a second lens group (G2) having a negative refractive power, wherein upon zooming, a distance between the adjacent lens groups changes. The zoom optical system further comprises an aperture stop (S) disposed closer to an image than the second lens group (G2, and satisfies the following conditional expression: 0.10<Df/Dr<0.90 where Df: a distance to the aperture stop from a lens surface of the zoom optical system closest to an object in a wide angle end state, and Dr: a distance from the aperture stop to a lens surface of the zoom optical system closest to the image in the wide angle end state.
    Type: Application
    Filed: January 31, 2019
    Publication date: April 21, 2022
    Inventors: Ayumu MAKIDA, Tomoki ITO, Satoshi MIWA
  • Publication number: 20220123336
    Abstract: An electric power supply system includes: a hydrogen production device producing hydrogen using electric power supplied from a natural-energy power generator; a hydrogen storage device storing the produced hydrogen; a fuel cell system generating electricity using the stored hydrogen to supply the generated electric power to a load; an electric power accumulator accumulating electric power supplied from the natural-energy power generator, to supply the accumulated power to the load; and a control device controls supply of electric power from the fuel cell system and the electric power accumulator to the load. The control device executes a first control for supplying electric power to the load from each of the electric power accumulator and the fuel cell system in a time zone in which demanded power of the load is smaller than electric power dischargeable from the electric power accumulator.
    Type: Application
    Filed: February 10, 2020
    Publication date: April 21, 2022
    Inventors: Tomoki ITO, Yasufumi TAKAHASHI, Atsushi SHIMIZU
  • Publication number: 20220121021
    Abstract: A zoom optical system (ZL), comprises, in order from an object: a first lens group (G1) having a positive refractive power; a second lens group (G2) having a negative refractive power; a third lens group (G3) having a positive refractive power; a fourth lens group (G4) having a positive refractive power; a fifth lens group (G5); and a sixth lens group (G6). In the zoom optical system, upon zooming, a distance between the adjacent lens groups changes. The zoom optical system satisfies the following conditional expression. 1.00<Mv4/Mv3<3.00 where Mv3: an amount of movement of the third lens group upon zooming from a wide angle end state to a telephoto end state (a sign of the amount of movement toward an object is shown as +), and Mv4: an amount of movement of the fourth lens group upon zooming from the wide angle end state to the telephoto end state (the sign of the amount of movement toward an object is shown as +).
    Type: Application
    Filed: January 31, 2019
    Publication date: April 21, 2022
    Inventors: Ayumu MAKIDA, Tomoki ITO, Satoshi MIWA
  • Publication number: 20220099949
    Abstract: There are provided an optical system having high resolution and high optical performance and reduced in size, an optical apparatus including the optical system, an imaging apparatus, and a method for manufacturing the optical system and imaging apparatus. An optical system UL of a camera module 10, which is incorporated in an optical apparatus, such as a camera 60, is an optical system that forms an image of an object, includes a correction member having a correction surface 11a, a first reflection surface 12a, which reflects light having passed through the correction surface 11a, and a second reflection surface 13a, which reflects the light reflected off the first reflection surface 12a, and satisfies predetermined conditions.
    Type: Application
    Filed: January 21, 2020
    Publication date: March 31, 2022
    Inventors: Toru IWANE, Kyoya TOKUNAGA, Tomoki ITO, Kyoichi SUWA
  • Publication number: 20220082745
    Abstract: An imaging apparatus having high resolution and high optical performance and reduced in size is provided. A camera module 10, which is an imaging apparatus incorporated in an optical apparatus, such as a camera 60, includes an optical system UL, which forms an image of an object, the optical system UL including a primary reflection mirror 12, which is a first reflector that reflects light incident thereon by a predetermined number of times, and a secondary reflection mirror 13, which is a second reflector that reflects the light reflected off the first reflector by the predetermined number of times, an image sensor 14, which is shifted toward the image side from the optical system UL and captures an image of an object formed by the optical system UL, and a prevention unit 19, which prevents light reflected off the first reflector and the second reflector by a number of times other than the predetermined number of times from entering the image sensor.
    Type: Application
    Filed: January 21, 2020
    Publication date: March 17, 2022
    Inventors: Toru IWANE, Kyoya TOKUNAGA, Tomoki ITO
  • Patent number: 11269167
    Abstract: A zoom optical system (ZL) comprises: a first lens group (G1) disposed closest to an object and having a positive refractive power; an aperture stop (S) disposed closer to an image than the first lens group (G1); a positive lens component disposed so as to oppose the image side of the aperture stop (S); and a lens group (G3) having the positive lens component, wherein a distance between the first lens group (G1) and the lens group (G3) having the positive lens component changes during zooming, at least one lens surface of the positive lens component has an aspherical surface, and the following conditional expression, 0.40<fp/fGp<3.60 is satisfied, where fp: a focal length of the positive lens component, and fGp: a focal length of the lens group (G3) having the positive lens component.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: March 8, 2022
    Assignee: Nikon Corporation
    Inventors: Takeshi Umeda, Tomoki Ito, Atsushi Shibayama
  • Patent number: 11256074
    Abstract: Comprising a first lens group G1 having positive refractive power, disposed at the most object side, and an image side lens group disposed at a side closer to an image than the first lens group G1, upon zooming, at least a distance between the first lens group G1 and the image side lens group being varied, the image side lens group comprising a vibration reduction lens group GVR which is moved so as to have a component in a direction perpendicular to the optical axis and a focusing lens group GF which is moved along the optical axis upon focusing, thereby providing a variable magnification optical system which has a higher optical performance, an optical apparatus and a method for manufacturing a variable magnification optical system.
    Type: Grant
    Filed: February 22, 2020
    Date of Patent: February 22, 2022
    Assignee: Nikon Corporation
    Inventor: Tomoki Ito
  • Publication number: 20220026694
    Abstract: A zoom optical system (ZL) comprises a first negative lens group (G2) having a negative refractive power; and a second negative lens group (G4) disposed closer to an image than the first negative lens group (G2), wherein a distance between the first negative lens group (G2) and the second negative lens group (G4) changes during zooming, at least part of the first negative lens group (G2) is movable so as to have a displacement component in a direction perpendicular to an optical axis, at least part of the second negative lens group (G4) is movable along the optical axis during focusing, and the following conditional expression, 0.50<fGb/fGa<2.60 is satisfied, where, fGa: a focal length of the first negative lens group (G2), and fGb: a focal length of the second negative lens group (G4).
    Type: Application
    Filed: October 6, 2021
    Publication date: January 27, 2022
    Inventors: Takeshi UMEDA, Tomoki ITO, Atsushi SHIBAYAMA
  • Patent number: 11221469
    Abstract: A zooming optical system comprises, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having negative refractive power, and a fifth lens group having positive refractive power. Upon zooming, distances between adjacent lens groups of the first to the fifth lens groups change respectively. The zooming optical system further satisfies the conditional expression 9.6<ft/(?f2)<20.0, where ft denotes a focal length of the zooming optical system in a telephoto end state, and f2 denotes a focal length of the second lens group.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: January 11, 2022
    Assignee: Nikon Corporation
    Inventor: Tomoki Ito
  • Publication number: 20210349294
    Abstract: Comprising, in order from an object side: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having negative refractive power; upon varying a magnification, the first lens group being fixed with respect to the image plane, and each distance between the neighboring lens groups being varied; upon focusing, at least a portion of the fourth lens group being moved; and predetermined conditional expression(s) being satisfied, thereby variations in various aberrations upon varying magnification being superbly suppressed.
    Type: Application
    Filed: June 28, 2021
    Publication date: November 11, 2021
    Inventor: Tomoki ITO
  • Patent number: 11150451
    Abstract: A zoom optical system (ZL) comprises a first negative lens group (G2) having a negative refractive power; and a second negative lens group (G4) disposed closer to an image than the first negative lens group (G2), wherein a distance between the first negative lens group (G2) and the second negative lens group (G4) changes during zooming, at least part of the first negative lens group (G2) is movable so as to have a displacement component in a direction perpendicular to an optical axis, at least part of the second negative lens group (G4) is movable along the optical axis during focusing, and the following conditional expression, 0.50<fGb/fGa<2.60 is satisfied, where, fGa: a focal length of the first negative lens group (G2), and fGb: a focal length of the second negative lens group (G4).
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 19, 2021
    Assignee: Nikon Corporation
    Inventors: Takeshi Umeda, Tomoki Ito, Atsushi Shibayama
  • Patent number: 11152788
    Abstract: A power system includes: a storage battery; a water electrolyzer; a fuel cell that generates electricity using hydrogen supplied from a hydrogen reservoir that stores hydrogen generated by the water electrolyzer; a detector that detects whether there is a person in a building; and a controller that performs at least one of first control and second control. The first control determines a priority between the storage battery and the water electrolyzer, to which electric power is supplied from a power generation device using renewable energy, based on information detected by the detector. The second control determines a priority between the storage battery and the fuel cell, from which electric power is supplied to a power load provided in the building, based on the information detected by the detector.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: October 19, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasufumi Takahashi, Tomoki Ito, Atsushi Shimizu
  • Patent number: 11079575
    Abstract: Comprising, in order from an object side: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having negative refractive power; upon varying a magnification, the first lens group being fixed with respect to the image plane, and each distance between the neighboring lens groups being varied; upon focusing, at least a portion of the fourth lens group being moved; and predetermined conditional expression(s) being satisfied, thereby variations in various aberrations upon varying magnification being superbly suppressed.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 3, 2021
    Assignee: NIKON CORPORATION
    Inventor: Tomoki Ito
  • Publication number: 20210191112
    Abstract: An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions, ndLZ+(0.01425×?dLZ)<2.12, and 0.702<?gFLZ+(0.00316×?dL=), where ndL: a refractive index of the lens with reference to d-line, ?dLZ: Abbe number of the lens with reference to d-line, and ?gFLZ: a partial dispersion ratio of the lens, wherein ?gFLZ is defined by the following expression, ?gFLZ=(ngLZ?nFLZ)/(nFLZ?nCLZ). wherein a refractive index of the lens with reference to g-line is ngLZ, a refractive index of the lens with reference to F-line is nFLZ, and a refractive index of the lens with reference to C-line is nCLZ.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 24, 2021
    Inventors: Masashi YAMASHITA, Tomoki ITO, Hiroshi YABUMOTO, Hiroshi YAMAMOTO, Satoshi MIWA, Keisuke TSUBONOYA, Ayumu MAKIDA, Takeru UEHARA
  • Patent number: 11025056
    Abstract: In a power converter, a DC bus is supplied with a DC power from a voltage conversion circuit for regulating a voltage of a power output from a DC power supply, a voltage of the DC power being regulated by the voltage conversion circuit. An inverter converts a DC power on the DC bus into an AC power and supplies the AC power as converted to a power system. A controller controls the inverter. When it is necessary to suppress an output, the controller suppresses the AC power supplied by the inverter to increase a voltage on the DC bus.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 1, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akihiro Kikuchi, Kenji Hanamura, Tomoki Ito
  • Publication number: 20210072520
    Abstract: An optical system (LS) Includes lenses (L22,L23) satisfying the following conditional expressions, vdLZ<35.0, and 0.702<?gFLZ+(0.00316×?dLZ), where vdLZ: Abbe number of the lens with reference to d-line, and ?gFLZ: a partial dispersion ratio of the lens, wherein ?gFLZ is defined by the following expression, ?gFLZ?(ngLZ?nFLZ)/(nFLZ?nCLZ). wherein a refractive index of the lens with reference to g-line is ngLZ, a refractive index of the lens with reference to F-line is nFLZ, and a refractive index of the lens with reference to C-line is nCLZ.
    Type: Application
    Filed: December 15, 2017
    Publication date: March 11, 2021
    Inventors: Masashi YAMASHITA, Tomoki ITO, Hiroshi YABUMOTO, Hiroshi YAMAMOTO, Satoshi MIWA, Keisuke TSUBONOYA, Ayumu MAKIDA, Takeru UEHARA
  • Publication number: 20210026133
    Abstract: An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions, ndLZ+(0.01425×?dLZ)<2.12, and ?dLZ<35.0, where ndLZ: a refractive index of the lens with reference to d-line, and ?dLZ: Abbe number of the lens with reference to d-line.
    Type: Application
    Filed: December 15, 2017
    Publication date: January 28, 2021
    Inventors: Masashi YAMASHITA, Tomoki ITO, Hiroshi YABUMOTO, Hiroshi YAMAMOTO, Satoshi MIWA, Keisuke TSUBONOYA, Ayumu MAKIDA, Takeru UEHARA
  • Publication number: 20200341249
    Abstract: A variable magnification optical system comprising, in order from an object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a rear lens group; upon varying magnification, the first lens group being fixed with respect to the image plane and each distance between the neighboring lens groups being varied; the rear lens group comprising a focusing lens group which is moved upon carrying out focusing; and the predetermined conditional expressions being satisfied, whereby it is possible to suppress superbly variations in aberrations upon varying the magnification.
    Type: Application
    Filed: November 17, 2017
    Publication date: October 29, 2020
    Inventor: Tomoki ITO
  • Patent number: 10813285
    Abstract: A cutter blade of a lawn mower includes a blade body and flaps. The blade body includes a shape with a sweepback angle inclined in a reverse-rotation direction of the cutter blade. The flap pivotal axis is provided along a blade edge without intersecting with a blade rotational axis. A flap pivotal axis is provided at a position offset from a line perpendicular to the blade rotational axis and in parallel to the pivotal axis, in a rotation direction of the cutter blade.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 27, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koji Kuriyagawa, Hajime Yoshimura, Tomoki Ito, Hideaki Kobayashi