Patents by Inventor Toshio Suzuki

Toshio Suzuki 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: 11154939
    Abstract: Provided is a hole drilling machine and the method for drilling an oval hole and an inner-diameter-changing hole by means of the hole drilling machine, the machine and the method being configured so that the oval hole can be shaped with high accuracy and drilling of a complicated hole such as the inner-diameter-changing hole can be performed with high accuracy. A hole drilling machine 100 includes a spindle 101 and an auxiliary spindle 120 holding both end portions of a processing tool 102 having a cutting blade 103. The spindle 101 includes a spindle drive motor 106 configured to rotatably displace the processing tool 102 on a circular path, and a tool turnable-drive motor 105 configured to spin the processing tool 102. The auxiliary spindle 120 includes an auxiliary spindle drive motor 120b.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: October 26, 2021
    Assignee: ENSHU LIMITED
    Inventors: Munehiro Murakami, Toshio Suzuki, Taketo Nakamura, Kazushige Morozumi, Tatsunori Sato, Yuya Masuda, Daiki Ishizuka
  • Publication number: 20210310911
    Abstract: A method of analyzing a metal component contained as an impurity in a polymer composition that contains a polymer and an organic solvent including a step (i) of preparing a dispersion by mixing the polymer composition with an acid aqueous solution, a step (ii) of separating the dispersion prepared in the step (i) into a dispersoid layer containing the polymer and a dispersion medium layer containing the metal component, and a step (iii) of quantifying the metal component contained in the dispersion medium layer separated in the step (ii).
    Type: Application
    Filed: March 29, 2021
    Publication date: October 7, 2021
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Kohei SUZUKI, Isao NOUCHI, Toshio NOMURA
  • Publication number: 20210293577
    Abstract: A stroke sensor module is provided in which the contact area where the moving element slides on the main body is limited. A stroke sensor module has: a moving element that is moved in a first direction; a magnetic field generator that is moved in the first direction together with the moving element; a magnetic field detecting element that detects movement of the magnetic field generator; and a housing that houses a part of the moving element and the magnetic field generator. At least either the moving element or the magnetic field generator has a plurality of protrusions that are provided at different angular positions, as viewed in the first direction, and the housing has guide portions that guide the protrusions.
    Type: Application
    Filed: February 8, 2021
    Publication date: September 23, 2021
    Inventors: Toshio ISHIKAWARA, Keiji SUZUKI, Tatsuya KATO, Toshihiko OYAMA, Takahiro MORIYA
  • Publication number: 20210281169
    Abstract: A charge pump circuit by which fundamental issues involved in the voltage feedback type charge pump circuit have been solved is realized. A power supply circuit includes a charge pump circuit, a feedback circuit feeding an output of the charge pump circuit back to an input of the charge pump circuit, a first current source causing a constant current to flow through the feedback circuit, a MOS transistor element interposed in a middle of the feedback circuit, a resistor element interposed at a position closer to the output of the charge pump circuit than the MOS transistor element in the feedback circuit, a bias circuit applying a constant voltage to a control terminal of the MOS transistor element, and a control section controlling a value of the constant current which the first current source flows through the feedback circuit.
    Type: Application
    Filed: April 24, 2018
    Publication date: September 9, 2021
    Inventors: MASAHIRO ICHIHASHI, KENYA KONDOU, KAZUMASA NISHIMURA, SYOU MITSUISHI, TOSHIO SUZUKI, NOBUHIKO SHIGYO, MASAYUKI KATAKURA, MOTOYASU YANO
  • Publication number: 20210277701
    Abstract: An opening and closing body drive device for a vehicle opening and closing an opening and closing body of the vehicle includes a belt frame extending in a moving direction of the opening and closing body, a drive unit including an output shaft, a drive pulley connected to the output shaft of the drive unit, plural driven pulleys arranged spaced apart from each other in a longitudinal direction of the belt frame, a belt wounded around the drive pulley and the plural driven pulleys and fixed with a connector with respect to the opening and closing body, and a biasing member supported at the belt frame and pressing the belt from inward thereof.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 9, 2021
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Taishi ISONO, Toshio MACHIDA, Akinori SUZUKI
  • Patent number: 11085494
    Abstract: A dog clutch of a vehicle power transmission device includes a sleeve, the dog clutch connecting/disconnecting a first rotating shaft to/from a first gear by moving the sleeve between a neutral position at which inner circumferential teeth formed on an inner circumferential side of the sleeve are not meshed with outer circumferential teeth on a side surface side of the first gear and an engagement position at which the inner circumferential teeth are meshed with the outer circumferential teeth, the inner circumferential teeth and the outer circumferential teeth having inclined surfaces tooth thicknesses of which become larger as the inner circumferential teeth and the outer circumferential teeth approach each other, and when the sleeve is moved to an engagement position by a shift fork, the sleeve being held in contact with a side surface of the first gear.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: August 10, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshio Suzuki, Takaaki Ito, Yoshisuke Kametani, Shinya Kuwabara
  • Publication number: 20210197294
    Abstract: Provided is a hole drilling machine and the method for drilling an oval hole and an inner-diameter-changing hole by means of the hole drilling machine, the machine and the method being configured so that the oval hole can be shaped with high accuracy and drilling of a complicated hole such as the inner-diameter-changing hole can be performed with high accuracy. A hole drilling machine 100 includes a spindle 101 and an auxiliary spindle 120 holding both end portions of a processing tool 102 having a cutting blade 103. The spindle 101 includes a spindle drive motor 106 configured to rotatably displace the processing tool 102 on a circular path, and a tool turnable-drive motor 105 configured to spin the processing tool 102. The auxiliary spindle 120 includes an auxiliary spindle drive motor 120b.
    Type: Application
    Filed: July 2, 2019
    Publication date: July 1, 2021
    Inventors: Munehiro MURAKAMI, Toshio SUZUKI, Taketo NAKAMURA, Kazushige MOROZUMI, Tatsunori SATO, Yuya MASUDA, Daiki ISHIZUKA
  • Patent number: 11041535
    Abstract: A control apparatus for a synchronous meshing mechanism that is equipped with a gear, a sleeve, a synchronizer ring, and a hydraulic actuator is provided. When it is determined that the sleeve and the gear have been rotationally synchronized with each other in an engagement transition period of the synchronous meshing mechanism, an electronic control unit with which the control apparatus is equipped sets a command pressure for the hydraulic actuator to an intermediate pressure that is lower than a meshing completion pressure. Besides, when meshing has not been completed even after the lapse of a predetermined time from a timing when the command pressure for the hydraulic actuator is set to the intermediate pressure, the electronic control unit sets the command pressure for the hydraulic actuator to the meshing completion pressure.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: June 22, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ken Jozaki, Takashi Seo, Toshio Suzuki, Hiroki Takeda, Yoshisuke Kametani, Shun Minaki
  • Publication number: 20210184656
    Abstract: Duty signal ratio and signal generation circuits with clock signal duty ratio stabilization under decreased power supply conditions are disclosed. In one example, a duty ratio correction circuit includes an inverting buffer, a capacitor, a low pass filter, an error amplifier, and an adjusting unit. The capacitor adjusts the rising and falling times of an inverted signal output from the inverting buffer. The low pass filter extracts a low frequency component of the inverted signal. The error amplifier adjusts a duty ratio of the inverted signal by controlling at least one of an output source current and an output sink current of the inverting buffer on the basis of a difference between the extracted low frequency component and a reference signal. The adjusting unit adjusts the control of the inverting buffer by the error amplifier.
    Type: Application
    Filed: May 10, 2019
    Publication date: June 17, 2021
    Inventors: Kazutoshi Ono, Nobuhiko Shigyo, Hideo Maeda, Toshio Suzuki, Yoshikatsu Jingu
  • Publication number: 20210152083
    Abstract: An object of the present technology is to stably operate a power supply circuit. A charge switch is connected to a first terminal of a capacitor and charges the capacitor with an input voltage on the basis of a control signal inputted to a control terminal. A discharge switch is complementary with the charge switch, is connected to the first terminal of the capacitor, and discharges on the basis of the control signal inputted to the control terminal the voltage charged to the capacitor, thereby generating an output voltage. A charge control signal converting section converts a charge control signal that controls the charge into a control signal referenced to the input voltage and inputs the resulting control signal to the control terminal of the charge switch. A discharge control signal converting section converts a discharge control signal that controls the discharge into a control signal referenced to the output voltage and inputs the resulting control signal to the control terminal of the discharge switch.
    Type: Application
    Filed: May 1, 2018
    Publication date: May 20, 2021
    Inventors: MASAHIRO ICHIHASHI, KENYA KONDOU, KAZUMASA NISHIMURA, SYOU MITSUISHI, TOSHIO SUZUKI, NOBUHIKO SHIGYO, MASAYUKI KATAKURA, MOTOYASU YANO
  • Patent number: 10982663
    Abstract: A vacuum pump includes a pump main body and a sound muffling device. The pump main body includes a housing including an intake port and an exhaust port, and a rotor that is rotatably arranged inside the housing and transports gas from the intake port to the exhaust port. The sound muffling device includes a casing, a first passage portion, and a second passage portion. The casing includes an opening end portion that is airtightly connected to an outer wall surface of the housing, a bottom wall portion that faces the opening end portion, and a peripheral wall portion, the casing defining an expansion chamber by the outer wall surface of the housing and respective inner wall surfaces of the bottom wall portion and the peripheral wall portion.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 20, 2021
    Assignee: ULVAC, INC.
    Inventors: Toshio Suzuki, Tomonari Tanaka, Kenji Hashimoto
  • Patent number: 10967948
    Abstract: In an outboard motor, a damper includes a bushing fixed to a periphery of a propeller shaft. The damper includes a second pressing surface that presses a first pressing surface of an inner surface of a cylinder in a circumferential direction, an elastic member disposed around a portion of the bushing different from the second pressing surface of the bushing, and a reinforcer disposed between the first pressing surface and the second pressing surface.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 6, 2021
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Junya Onoue, Toshio Suzuki, Kenji Yukishima, Noriyuki Natsume, Manabu Yamamoto, Koma Ariga, Shunsuke Yukawa
  • Patent number: 10914375
    Abstract: In a control device of a vehicle including a first power transmission path transmitting a power through a belt-type continuously variable transmission and a second power transmission path transmitting a power through a reduction gear mechanism in parallel between an input shaft and an output shaft and including a dog clutch in series with the reduction gear mechanism in the second power transmission path, when the dog clutch is in an engagement transition state and a rotational speed change of the output shaft is equal to or greater than a predetermined value, the engagement transition state of the dog clutch is canceled to release the dog clutch.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 9, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Takeda, Kyohei Suzumura, Yoshisuke Kametani, Kenji Matsuo, Satoshi Kamijo, Michio Yoshida, Toshio Suzuki, Makoto Sawada, Takashi Seo
  • Patent number: 10910640
    Abstract: To provide a cathode active material for a lithium ion secondary battery excellent in the cycle characteristics and rate characteristics even when charging is conducted at a high voltage. A cathode active material for a lithium ion secondary battery, which comprises particles (III) having a covering layer comprising a metal oxide (I) containing at least one metal element selected from the group consisting of elements in Groups 3 and 13 of the periodic table and lanthanoid elements, and a compound (II) containing Li and P, on the surface of a lithium-containing composite oxide comprising lithium and a transition metal element, wherein the atomic ratio of said P to said metal element (P/metal element) contained within 5 nm of the surface layer of the particles (III) is from 0.03 to 0.45.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 2, 2021
    Assignee: SUMITOMO CHEMICAL CO., LTD
    Inventors: Takeshi Kawasato, Kentaro Tsunozaki, Haisheng Zeng, Yasuyuki Takimoto, Toshio Suzuki, Tegi Ri
  • Patent number: 10895258
    Abstract: A vacuum pump according to an embodiment of the present invention includes a pump housing and a cooling pipe. The pump housing is constituted by cast iron. The cooling pipe includes an outer circumferential surface and an inner circumferential surface and is constituted by stainless steel. The cooling pipe passes through the pump housing and the outer circumferential surface which is in close contact with the pump housing, is constituted by a sensitized layer. This vacuum pump is formed such that the pump housing constituted by cast iron is casted around the cooling pipe constituted by stainless steel. The sensitized layer is provided on the outer circumferential surface of the cooling pipe, the sensitized layer is in contact with the pump housing, and the pump housing is efficiently cooled.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: January 19, 2021
    Assignee: ULVAC, INC.
    Inventors: Kenji Hashimoto, Hideaki Inoue, Koji Shibayama, Toshio Suzuki
  • Publication number: 20200408264
    Abstract: A control apparatus for a synchronous meshing mechanism that is equipped with a gear, a sleeve, a synchronizer ring, and a hydraulic actuator is provided. When it is determined that the sleeve and the gear have been rotationally synchronized with each other in an engagement transition period of the synchronous meshing mechanism, an electronic control unit with which the control apparatus is equipped sets a command pressure for the hydraulic actuator to an intermediate pressure that is lower than a meshing completion pressure. Besides, when meshing has not been completed even after the lapse of a predetermined time from a timing when the command pressure for the hydraulic actuator is set to the intermediate pressure, the electronic control unit sets the command pressure for the hydraulic actuator to the meshing completion pressure.
    Type: Application
    Filed: May 22, 2020
    Publication date: December 31, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ken JOZAKI, Takashi SEO, Toshio SUZUKI, Hiroki TAKEDA, Yoshisuke KAMETANI, Shun MINAKI
  • Patent number: 10757454
    Abstract: According to one embodiment, a multiplexing apparatus includes a processor and a multiplexer. The processor is configured to identify the version of the video transmission standard of each of input packets, and to convert the version of the packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version. The multiplexer is configured to multiplex the input packets, based on the reference version.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 25, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Toshio Suzuki
  • Publication number: 20200173435
    Abstract: A vacuum pump according to an embodiment of the present invention includes a pump housing and a cooling pipe. The pump housing is constituted by cast iron. The cooling pipe includes an outer circumferential surface and an inner circumferential surface and is constituted by stainless steel. The cooling pipe passes through the pump housing and the outer circumferential surface which is in close contact with the pump housing, is constituted by a sensitized layer. This vacuum pump is formed such that the pump housing constituted by cast iron is casted around the cooling pipe constituted by stainless steel. The sensitized layer is provided on the outer circumferential surface of the cooling pipe, the sensitized layer is in contact with the pump housing, and the pump housing is efficiently cooled.
    Type: Application
    Filed: February 6, 2020
    Publication date: June 4, 2020
    Inventors: Kenji HASHIMOTO, Hideaki INOUE, Koji SHIBAYAMA, Toshio SUZUKI
  • Patent number: 10618617
    Abstract: A marine propulsion unit includes a duct including a stator, a propeller including a rim including a rotor disposed at a position that faces the stator and a blade provided radially inward of the rim, a steering shaft that supports the duct such that the duct is steerable, a casing provided separately from the steering shaft and that extends along a rotation axis of the propeller, and a motor controller disposed in the casing and configured or programmed to control rotational driving of the propeller.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 14, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Takayoshi Suzuki, Satoshi Ishikawa, Toshio Suzuki
  • Publication number: 20200109705
    Abstract: A vacuum pump according to an embodiment of the present invention includes a pump main body and a sound muffling device. The pump main body includes a housing including an intake port and an exhaust port, and a rotor that is rotatably arranged inside the housing and transports gas from the intake port to the exhaust port. The sound muffling device includes a casing, a first passage portion, and a second passage portion. The casing includes an opening end portion that is airtightly connected to an outer wall surface of the housing, a bottom wall portion that faces the opening end portion, and a peripheral wall portion, the casing defining an expansion chamber by the outer wall surface of the housing and respective inner wall surfaces of the bottom wall portion and the peripheral wall portion. The first passage portion is provided in the casing and introduces gas into the expansion chamber, the gas being discharged from the exhaust port.
    Type: Application
    Filed: March 14, 2018
    Publication date: April 9, 2020
    Inventors: Toshio SUZUKI, Tomonari TANAKA, Kenji HASHIMOTO