Patents by Inventor Akira Nagai

Akira Nagai 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: 10562402
    Abstract: A control system for a hybrid vehicle that can reduce a power loss resulting from shifting an operating mode from motor mode to hybrid mode is provided. A transmission that is adapted to distribute torque applied to an input element to a reaction element and an output element, and to change a ratio between a first torque delivered to the reaction element and a second torque delivered to the output element. A controller is configured to start an engine in a high mode in which a torque ratio of the output element to the input element is small if the vehicle speed is higher than a threshold value, and to start the engine in a low mode in which the torque ratio is greater if the vehicle speed is lower than the threshold value.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito Endo, Hidekazu Nagai, Kensei Hata, Akira Murakami
  • Publication number: 20200048521
    Abstract: In one aspect, the present invention provides a resin member comprising a copolymer of ethylene and an olefin having 3 or more carbon atoms, and a straight-chain saturated hydrocarbon compound.
    Type: Application
    Filed: October 7, 2016
    Publication date: February 13, 2020
    Inventors: Akira NAGAI, Tsuyoshi MORIMOTO, Teiichi INADA
  • Publication number: 20200048442
    Abstract: In one aspect, the present invention is a resin member comprising a copolymer of ethylene and an olefin having 3 or more carbon atoms, a straight-chain saturated hydrocarbon compound, and a gelling agent.
    Type: Application
    Filed: October 4, 2017
    Publication date: February 13, 2020
    Inventors: Akira NAGAI, Tsuyoshi MORIMOTO, Teiichi INADA
  • Patent number: 10558190
    Abstract: {Problem} In combining the master valve and the groups of slave valves, the configuration of the combination is made not for performing simply a uniform control, but is made to be such a form as capable of corresponding to the size and the inside configuration of the processing apparatus, or customer's requirements, which thereby allows a prompt adaptation to variety of demands. {Solution to Problem} In combining the master controller and the slave controller, the operation mode is set, and it is made possible to transmit the generated valve opening degree common signal and the generated valve opening degree individual signal from the master controller, corresponding to the operation mode, to the slave controllers that are connected in the sequential daisy-chain style, thereby the slave valves are opening-degree-controlled by any of such generated valve opening degree signals.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: February 11, 2020
    Assignee: V-TEX CORPORATION
    Inventors: Hideaki Nagai, Takayuki Tadokoro, Akira Iwamoto
  • Publication number: 20200012181
    Abstract: The present invention provides a transparent screen which is excellent in transparency and in which a reflection part contour at the time of not displaying an image is unlikely to be recognized. An optical sheet of the present invention includes a substrate; and a cholesteric liquid crystal layer on the substrate, in which the entire cholesteric liquid crystal layer is surrounded by an imaginary contour line, the cholesteric liquid crystal layer has a uniform region and a modulation region that is located between the uniform region and at least a part of the imaginary contour line, a shortest distance between the imaginary contour line and the uniform region is 10 mm or longer, and a reflectance of the modulation region monotonously decreases from the uniform region side toward the imaginary contour line side.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akira Yamamoto, Hideki Kaneiwa, Yujiro Yanai, Michio Nagai
  • Patent number: 10525814
    Abstract: A drive system is configured to split driving force produced by an engine to a first motor side and an output gear side, and add driving force produced by a second motor that is driven with electric power generated by the first motor, to the driving force delivered from the output gear. A first planetary gear mechanism performs differential operation, using a first input element that receives the driving force produced by the engine, a first reaction-force element coupled to the first motor, and a first output element. A second planetary gear mechanism performs differential operation, using a second input element coupled to the first output element, a second output element coupled to the output gear, and a second reaction-force element. A first clutch mechanism selectively couples the first input element with the second reaction-force element. A first brake mechanism selectively inhibits rotation of the second reaction-force element.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: January 7, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito Endo, Hidekazu Nagai, Kensei Hata, Yuji Iwase, Akira Murakami
  • Patent number: 10518548
    Abstract: A liquid ejection head has a plurality of ejection modules having a recording element substrate equipped with a plurality of ejection orifices for ejecting a liquid, a plurality of first flow path members that supports at least one of the ejection modules and a second flow path member provided in common with the first flow path members and supporting the first flow path members. The first flow path members and the second flow path member are equipped with a flow path for supplying a plurality of recording element substrates with a liquid. The first flow path members are joined with the second flow path member via an adhesive layer without being brought into direct contact with the second flow path member.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: December 31, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Yamada, Shuzo Iwanaga, Seiichiro Karita, Shingo Okushima, Zentaro Tamenaga, Noriyasu Nagai, Tatsurou Mori, Akio Saito, Akira Yamamoto, Asuka Horie, Masao Furukawa, Takatsuna Aoki
  • Patent number: 10518766
    Abstract: When an engine is started by causing a first motor coupled to first drive wheels to motor the engine while a hybrid vehicle is turning with the engine stopped, an electronic control unit controls output torque of a second motor, in such a direction as to curb change of a steering characteristic of the hybrid vehicle due to change of drive torque of the first drive wheels induced by motoring of the engine by the first motor.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: December 31, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kensei Hata, Akira Murakami, Hidekazu Nagai, Takahito Endo, Yuji Iwase
  • Patent number: 10522978
    Abstract: In an ignition plug, since a ground electrode is formed in a thin-rod-shape or a mesh-like shape, sufficiently strong radicals are locally generated by a barrier discharge, an anti-inflammation effect by the electrode is small, and the growth of a flame is hardly hindered. Furthermore, by making the thickness dimension of a second dielectric facing a discharge region uniform, the barrier discharge is spread over the surface of the second dielectric, the generation of the radicals is maintained, and combustibility after ignition is promoted. Furthermore, because an end portion of a high voltage electrode and a ground electrode are disposed to face each other within a combustion chamber, a fuel gas introduced into the combustion chamber is liable to flow into the discharge region, and is easily ignited by the radicals generated due to the discharge.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: December 31, 2019
    Assignees: Mitsubishi Electric Corporation, NGK SPARK PLUG CO., LTD.
    Inventors: Taichiro Tamida, Takahiro Inoue, Takashi Hashimoto, Akira Nakagawa, Tomokazu Sakashita, Takayoshi Nagai, Kimihiko Tanaya, Hiroyuki Kameda, Yuichi Yamada, Kenji Ban
  • Patent number: 10508726
    Abstract: A boss-side fastening surface formed in a boss of a flexible externally toothed gear of a strain wave gearing and a shaft-side fastening surface of an output shaft are coaxially fastened with bolts. The boss-side fastening surface is a convex-side fastening surface defined by two symmetrical inclined surfaces that are intersected at a prescribed angle to form a ridge line on a diameter line of the surface. The shaft-side fastening surface is a concave-side fastening surface defined by two symmetrical inclined surfaces that are intersected at a prescribed angle to form a trough line on a diameter line of the surface. The inclination angle of the inclined surfaces is set in the range of 2° to 16°. Transmission torques equal to or larger than those for combined bolt and pin fastening can be secured with bolt-only fastening.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 17, 2019
    Assignee: Harmonic Drive Systems Inc.
    Inventors: Tatsuro Hoshina, Masaru Kobayashi, Akira Nagai
  • Patent number: 10481311
    Abstract: Provided are a transparent film that allows scenery to be observed without color unevenness in a state where light is not irradiated, a transparent screen and an image display system including the transparent film, and a transparent poster. The transparent film includes: a support; a dot array that is formed on one surface of the support and in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and an overcoat layer that covers the dots and is laminated on the support, in which areas of the dots and distances between the dots are made to be irregular. As a result, the object is achieved.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Patent number: 10471711
    Abstract: In a printing apparatus including a circulation system circulating a liquid, a volatile component included in the liquid evaporates from an ejection opening and thus characteristics of the liquid involving with concentration or viscosity change. The invention provides a printing apparatus that uses a liquid ejection head including an ejection opening ejecting a liquid, a print element generating energy for ejecting a liquid, and a pressure chamber having the print element provided therein, the printing apparatus including: a circulator configured to circulate the liquid so that the liquid passes through the pressure chamber; and a concentration adjustment unit configured to adjust a concentration of a liquid inside a liquid circulation system by discharging the liquid from the inside of the liquid circulation system and replenishing the liquid into the liquid circulation system from the outside of the liquid circulation system in response to the amount of the discharged liquid.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiichiro Karita, Shuzo Iwanaga, Kazuhiro Yamada, Takatsuna Aoki, Shingo Okushima, Zentaro Tamenaga, Yumi Komamiya, Noriyasu Nagai, Tatsurou Mori, Yoshiyuki Nakagawa, Akira Yamamoto
  • Patent number: 10469889
    Abstract: Provided are an information distribution device, system, program, and method that can increase the effectiveness of advertisements. The information distribution device selects advertisements to distribute based on viewer attributes collected while distributing content to a display unit.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 5, 2019
    Assignee: NEC Corporation
    Inventors: Toshio Asai, Akira Inoue, Susumu Okuyama, Takeshi Kondo, Soichi Tsumura, Takayuki Nagai
  • Patent number: 10459132
    Abstract: An optical member includes: a substrate; and a dot formed on a surface of the substrate. The dot has wavelength selective reflecting properties, and a cholesteric structure which has a stripe pattern including bright and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope. A surface shape of the dot opposite to the substrate in a cross-section of the dot in a thickness direction has at least one inflection point. In the cross-section, an angle between a normal line perpendicular to a line, formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot, is in a range of 70° to 90°. A proportion of a retroreflective area of the optical member is high when observed after light irradiation from an oblique direction to a normal direction perpendicular to the optical member.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: October 29, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Akira Yamamoto, Yoji Ito, Michio Nagai, Daisuke Kashiwagi, Nobuhiko Ichihara
  • Publication number: 20190302603
    Abstract: Provided is an optical film having high contrast and excellent visibility. The optical film includes: a transparent screen; and a transparent reflecting layer that is disposed on one main surface of the transparent screen, in which in the transparent screen, a ratio T15/T30 of a light amount T15 of transmitted light at an angle of 15 degrees with respect to a normal direction of the main surface to a light amount T30 of transmitted light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or higher, and the ratio R15/R30 of the light amount R15 of reflected light at an angle of 15 degrees with respect to the normal direction of the main surface to the light amount R30 of reflected light at an angle of 30 degrees with respect to the normal direction of the main surface is 2.0 or lower.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Applicant: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Patent number: 10421676
    Abstract: The invention provides a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of combined chlorine or the stabilizer in the water system is controlled by generating free residual chlorine in the water system, and a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of the oxidant-based bactericidal/algicidal agent added is controlled so that the concentration of total residual chlorine in the water system falls within a predetermined range, and the amount of combined chlorine or the stabilizer is controlled so that the concentration of free residual chlorine in the water system falls within a predetermined range.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: September 24, 2019
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventors: Yutaka Yoneda, Hideo Otaka, Kouichi Tanaka, Kazuhiko Tsunoda, Naohiro Nagai, Akira Iimura
  • Patent number: 10415443
    Abstract: There is provided an engine capable of reducing oil consumption. The engine includes a cylinder head, a cylinder head cover mounted above the cylinder head, a rocker arm covered by the cylinder head cover, and a breather chamber provided inside the cylinder head cover. As a front-rear direction is defined by a longitudinal direction of the cylinder head cover, the breather chamber has a blow-by gas inlet at one side in the front-rear direction, a blow-by gas outlet at another side in the front-rear direction, and an oil discharging guide chamber at an intermediate part in the front-rear direction. The blow-by gas inlet is opened on a bottom wall of the breather chamber, and a peripheral wall of the oil discharging guide chamber is protruded downwardly from the bottom wall of the breather chamber toward between the rocker arm provided at a side of the blow-by gas outlet and the blow-by gas inlet.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: September 17, 2019
    Assignee: KUBOTA Corporation
    Inventors: Kentaro Nagai, Takahiro Yamazaki, Takahito Hamasaki, Hideyuki Goto, Hiroki Oso, Hideyuki Koyama, Akira Tanaka, Yoshinori Tanaka
  • Patent number: 10419213
    Abstract: A random number generating unit generates random numbers s1, s2, s?1, and s?2. A public keys randomizing unit generates first randomized public keys information obtained by randomizing public keys using the random number s1 and second randomized public keys information obtained by randomizing the public keys using the random number s2. A proxy calculation unit calculates a first commission result by using a secret key and calculates a second commission result by using the secret key. A verification unit calculates a first verification value by using the random number s2, calculates a second verification value by using the random number s1, and verifies whether or not the first verification value and the second verification value coincide with each other. A common key calculation unit calculates a common key by using the random numbers s?1 and s?2 if the first verification value and the second verification value coincide with each other.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: September 17, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira Nagai, Tsunekazu Saito, Tetsutaro Kobayashi
  • Patent number: 10418886
    Abstract: The method includes a step of aligning and laminating enlarged iron core pieces including iron core pieces and dummy piece parts and forming a composite laminated iron core integrally including a dummy laminated part with the dummy piece parts laminated and a laminated iron core, a step of placing and positioning the composite laminated iron core on a jig and removing the dummy laminated part, and a step of mutually bonding the laminated iron core body with the dummy laminated part removed to form the laminated iron core.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: September 17, 2019
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Akira Nagai, Shogo Tezuka
  • Patent number: D870293
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 17, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Yukita, Haruka Sugita, Akira Hasegawa, Hideyuki Nagai, Yasufumi Tsuchiya