Patents by Inventor Tadashi Oshima

Tadashi Oshima 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: 20190276916
    Abstract: A copper-based alloy which includes Cu, Ni, Si, Fe, and Mg, and at least one selected from the group consisting of Mo, W and V, and in which a content of Mg is 0.02 mass % or more.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Minoru KAWASAKI, Natsuki SUGIYAMA, Hisao FUKUHARA, Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO
  • Patent number: 10407865
    Abstract: A control system includes: a first hydraulic pump and a second hydraulic pump; a passage connecting the first hydraulic pump and the second hydraulic pump with each other; an opening/closing device provided in the passage and configured to open and close the passage; a control device configured to control the opening/closing device to switch between a split-flow state in which the passage is closed and a connected state in which the passage is open; a first actuator to which hydraulic fluid discharged from the first hydraulic pump is supplied in the split-flow state; and a second actuator to which hydraulic fluid discharged from the second hydraulic pump is supplied in the split-flow state. In the connected state, the control device controls the opening/closing device so that the connected state is maintained even when either one of the first actuator and the second actuator is brought into a driven state.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: September 10, 2019
    Assignee: Komatsu Ltd.
    Inventors: Yuta Kamoshita, Tadashi Kawaguchi, Teruo Akiyama, Kenji Oshima
  • Patent number: 10407875
    Abstract: A control system includes: calculating a distribution flow rate of hydraulic fluid to be supplied to first and second hydraulic actuators based on a pressure of hydraulic fluid in the first and second hydraulic actuators and an operation amount operated to drive the first and second hydraulic actuators; calculating merged-state pump output indicating outputs of first and second hydraulic pumps required in a merged state based on the distribution flow rate; calculating separated-state pump output indicating outputs of the first and second hydraulic pumps required in the separated state based on the distribution flow rate; calculating excessive output of an engine based on the merged-state pump output and the separated-state pump output; calculating reduced output of the engine more reduced than target output by correcting the target output of the engine based on the excessive output; and controlling the engine based on the reduced output in the separated state.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 10, 2019
    Assignee: Komatsu Ltd.
    Inventors: Tadashi Kawaguchi, Yuta Kamoshita, Kenji Oshima
  • Publication number: 20190242335
    Abstract: An air cleaner of a vehicle for filtering particulate matter from air supplied through an intake includes a case with an outlet. The case surrounds the air cleaner, which further includes two connecting tubes each having a first end attached to the throttle body of the vehicle and a second end disposed in the outlet in the case of the air cleaner. A funnel is inserted into the second end of each of the connecting tubes. Clean air from the air cleaner is proved to the engine through the connecting tubes.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Inventors: Russell A. DIEHL, Zeile A. KLAISS, Tadashi OSHIMA
  • Publication number: 20190242334
    Abstract: An air cleaner of a vehicle for filtering particulate matter from air supplied through an intake includes a case with an outlet. The case surrounds the air cleaner, which further includes two connecting tubes each having a first end disposed through the outlet and a second end located in the case. A funnel is clamped to the second end of each of the connecting tubes. A bracket is attached to each of the funnels for rigidly mounting the funnels inside the case of the air cleaner. The first end of each of the connecting tubes is further connected to the throttle body of the vehicle to provide clean air from the air cleaner to the engine.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Inventors: Russell A. DIEHL, Tadashi OSHIMA
  • Patent number: 10344781
    Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: July 9, 2019
    Assignee: Komatsu Ltd.
    Inventors: Yuta Kamoshita, Tadashi Kawaguchi, Teruo Akiyama, Kenji Oshima, Koji Saito, Noboru Iida
  • Publication number: 20190136346
    Abstract: A hardfacing alloy satisfies the following condition when the hardfacing alloy as a whole is 100 mass % (also simply referred to as “%,” hereinafter), Ni: 10-25%, Si: 1-3%, Fe: 3-18%, the total of one or more elements of Mo, W, and Nb: 6.5-20%, and the balance: Cu and impurities. In particular, it preferably satisfies Fe+2Mo?22.6(%), Mo equivalent/Fe?1.17, and Mo equivalent=Mo+0.522W+1.033Nb. In a hardfacing part composed of the hardfacing alloy, coarse hard particles are formed to ensure the wear resistance, and a soft phase present in the hard particles ensures the machinability. This may be understood as a raw material powder for hardfacing treatment and may also be understood as a hardfacing member in which a hardfacing part is formed on a base material using the raw material powder.
    Type: Application
    Filed: October 10, 2018
    Publication date: May 9, 2019
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO, Natsuki SUGIYAMA, Minoru KAWASAKI, Jun NOMASAKI, Hisao FUKUHARA, Naoyuki MIYARA, Hironori AOYAMA
  • Patent number: 10167533
    Abstract: A wear-resistant copper-based alloy includes: at least one selected from the group made of molybdenum, tungsten, and vanadium and niobium carbide; chromium in an amount of less than 1.0% in terms of wt %; and a matrix and hard particles dispersed in the matrix, in which the hard particles include niobium carbide and at least one selected from the group made of Nb—C—Mo, Nb—C—W, and Nb—C—V around the niobium carbide.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: January 1, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Minoru Kawasaki, Nobuyuki Shinohara, Takehisa Fujita, Hironori Aoyama, Yasuhiro Yamamoto, Tadashi Oshima, Hajime Kato, Kouji Tanaka, Takashi Saito
  • Patent number: 9983294
    Abstract: A stationary object decision processing unit 14 decides whether range R and Doppler frequency fd corresponding to peaks detected by the peak detection processing unit 13 satisfy geometric positional relationships between a radar and a stationary object. If they satisfy the geometric positional relationships, it recognizes that the object associated with the peaks is a stationary object. Thus, even if the number of peaks detected by the peak detection processing unit 13 increases, it can accurately decide whether the object associated with the peaks is a stationary object or not with a small amount of calculation.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: May 29, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadashi Oshima, Teruyuki Hara, Kentarou Isoda, Masashi Mitsumoto
  • Patent number: 9821406
    Abstract: A jointed body that has been solid-phase jointed at normal temperature and that has a non-conventional structure is presented. The jointed body is formed by solid-phase joining a first jointed member to a second jointed member, and has a junction interface between the first member and the second member. This jointed body includes an average crystal grain size in a near interface structure that constitutes a near interface area having a total width of 20 micrometers and extending at both sides of the junction interface as a center is 75-100% of an average crystal grain size in an around interface structure that constitutes around interface areas located at both outer sides of the near interface area. In the jointed body, the near interface structure after the joining is almost the same as the structure before the joining, allowing the jointed body to exert similar characteristics to the jointed members.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: November 21, 2017
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tadashi Oshima, Hisaaki Takao, Hirofumi Ito
  • Patent number: 9716557
    Abstract: A calibration device includes reference signal normalizing units 5-1 to 5-M that set, as a reference signal, a frequency domain signal being associated with either one 2 of reception antennas and being included in frequency domain signals obtained by conversions made by Fourier transform units 4-1 to 4-M, and divide the frequency domain signals after the conversion made by the Fourier transform units 4-1 to 4-M by the reference signal, thereby normalizing the frequency domain signals, and reference frequency normalizing units 6-1 to 6-M that normalize the frequency domain signals normalized by the reference signal normalizing units 5-1 to 5-M by using a signal having a reference frequency included in the frequency domain signals.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: July 25, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tadashi Oshima, Toshio Wakayama
  • Patent number: 9573465
    Abstract: A transmission includes a drive force transmission/interruption mechanism that restricts the rotation of a propeller shaft. By operating a shift lever, the shift operation of the transmission and the operation of the drive force transmission/interruption mechanism can be performed, and a lock operation and an unlock operation of a differential lock mechanism can be performed. When a driver wants to bring a vehicle into a parking state, by operating a shift lever, a state is provided where a drive force transmission/interruption mechanism is locked so that the rotation of a propeller shaft is restricted, and the vehicle can be held in a stopped state by bringing a differential lock mechanism into a locked state. Since the vehicle can be brought into a parking state using the shift lever, a so-called parking lever becomes unnecessary so that the number of operation elements can be reduced.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: February 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tomohiro Nishida, Tadashi Oshima, Nobutaka Ban
  • Publication number: 20170037495
    Abstract: A wear-resistant copper-based alloy includes: at least one selected from the group made of molybdenum, tungsten, and vanadium and niobium carbide; chromium in an amount of less than 1.0% in terms of wt %; and a matrix and hard particles dispersed in the matrix, in which the hard particles include niobium carbide and at least one selected from the group made of Nb—C—Mo, Nb—C—W, and Nb—C—V around the niobium carbide.
    Type: Application
    Filed: August 8, 2016
    Publication date: February 9, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Minoru KAWASAKI, Nobuyuki SHINOHARA, Takehisa FUJITA, Hironori AOYAMA, Yasuhiro YAMAMOTO, Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO
  • Publication number: 20170033876
    Abstract: A calibration device includes reference signal normalizing units 5-1 to 5-M that set, as a reference signal, a frequency domain signal being associated with either one 2 of reception antennas and being included in frequency domain signals obtained by conversions made by Fourier transform units 4-1 to 4-M, and divide the frequency domain signals after the conversion made by the Fourier transform units 4-1 to 4-M by the reference signal, thereby normalizing the frequency domain signals, and reference frequency normalizing units 6-1 to 6-M that normalize the frequency domain signals normalized by the reference signal normalizing units 5-1 to 5-M by using a signal having a reference frequency included in the frequency domain signals.
    Type: Application
    Filed: May 12, 2014
    Publication date: February 2, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tadashi OSHIMA, Toshio WAKAYAMA
  • Patent number: 9452670
    Abstract: A vehicle includes a power unit with an engine that transmits drive force forward and backward to front and rear wheels via propeller shafts. The power unit is supported on a vehicle frame by engine mounts provided at three locations. An engine mount on one side of a crankshaft is farther from the center of gravity of the power unit than the other two mounts. This engine mount joins the crank case and the vehicle frame. The two other engine mounts on the other side of the crankshaft are closer to the center of gravity. These engine mounts join the vehicle frame and front and rear ends of an engine hanger that is joined to the crank case and extends forward and backward beyond at least one of a front end and a rear end of the crank case.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: September 27, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tadashi Oshima, Yasuo Hanafusa
  • Patent number: 9400323
    Abstract: A passive radar device includes: a pulse-by-pulse range compression unit executing cross-correlation processing between received signals of a direct wave and scattered wave on each of pulses divided by a direct-wave reception unit and a scattered-wave reception unit, and calculating a pulse-by-pulse range profile; a block-by-block Doppler processing unit calculating a first Doppler frequency spectrum by executing pulse-direction Fourier transform in block units each grouping plural pulses; a Doppler frequency cell-associated range migration compensation unit compensating a range-direction movement amount with respect to the first Doppler frequency spectrum on a Doppler-frequency-cell-by-Doppler-frequency-cell basis and on a block-by-block basis; and a block-direction Doppler processing unit calculating a second Doppler frequency spectrum by executing block-direction Fourier transform on an output from the Doppler frequency cell-associated range migration compensation unit.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: July 26, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kei Suwa, Tadashi Oshima, Shohei Nakamura, Toshio Wakayama
  • Patent number: 9358876
    Abstract: An exhaust port formed on one side portion of an engine body along the vehicle width direction, the exhaust port connected to an exhaust muffler arranged in an extending manner in the vehicle width direction along a rear edge of the vehicle body frame by way of an exhaust pipe passage means that introduces an exhaust gas from the exhaust port. The exhaust pipe passage means is arranged in an extending manner in the longitudinal direction of the vehicle while having a bent portion bent toward the center in the vehicle width direction from one side of the engine body in the vehicle width direction behind the engine body, as viewed in a plan view.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 7, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shun Hanashima, Tadashi Oshima, Takaaki Shomura, Yuji Maki
  • Patent number: 9349704
    Abstract: A jointed structure comprises a first metal layer and a second metal layer. The first metal layer and the second metal layer are jointed together and have different coefficients of thermal expansion. The first metal layer and the second metal layer are jointed together by solid-phase joining via a jointing interface microstructure, wherein the jointing interface microstructure includes an amorphous oxide phase and having a thickness of 50 nm or less.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: May 24, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tadashi Oshima, Hirofumi Ito, Hisaaki Takao
  • Patent number: 9346492
    Abstract: An off-road vehicle is provided with a body frame that supports a final drive unit and a rear suspension, the rear suspension that supports rear wheels with an upper arm and an lower arm and absorbs shock with a rear cushion unit disposed between the rear wheels and the body frame, and a drive shaft that transmits a driving force from the final drive unit to the rear wheels. The body frame that configures generally rectangular parallelepiped sides enclosing the area around the final drive unit is provided with a front rear side frame. The front rear side frame vertically extends the left and right of one side of either the front side or the back side of the final drive unit and supports the upper arm, the lower arm, and the rear cushion unit.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: May 24, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tadashi Oshima, Yasuo Hanafusa, Naoki Kuwabara
  • Patent number: 9327621
    Abstract: A storage structure of an off-road vehicle includes a front row seat, a back row seat capable of switching between a usage position where a passenger sits, and a stowed position, a back row floor where a passenger seated in the back row seat places his feet when the back row seat is in the usage position or forms a portion of the storage structure, creating a storage space when the back row seat is in the stowed position, and rear doors. In the stowed position, the back row seat covers an upper part of the upper space of the back row floor, and the rear doors cover a side part of the upper space of the back row floor forming a rear storage section and the back row seat concurrently provide a load-carrying platform.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 3, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tadashi Oshima