Patents by Inventor Yasunori Kanda

Yasunori Kanda 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: 20190063300
    Abstract: Provided is a powertrain for a vehicle in which an exhaust purifier is utilized as a dynamic damper. The powertrain includes an engine, and a transmission linked to the engine. The engine has an exhaust purification system containing a GPF device for purifying an exhaust gas. The exhaust purification system is disposed along a rear external surface of a cylinder head. The exhaust purification system is supported via a first support on the engine. A vertical side portion of the exhaust purification system is located downstream of the first support in a flow direction of an exhaust gas, extending in a direction away from the external surface.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Taichi MASUOKA, Yasunori KANDA, Keishi KITABATAKE, Taku KURAMASHI, Yuji TORIGOE, Shoko SUZUKI
  • Patent number: 10012285
    Abstract: In order to reduce bending vibration of a connecting rod, a dynamic absorber (50) configured to reduce the bending vibration of the connecting rod (10) is provided on a piston (1).
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: July 3, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Kanda, Tsunehiro Mori, Masatoshi Nitta, Yukiyoshi Fukuda
  • Patent number: 9926998
    Abstract: An engine piston structure includes: a piston (1); a connecting rod (10) having a small end part (10a) coupled to the piston (1), and having a large end part (10b) coupled to a crankshaft; a piston pin (2) through which the piston (1) and the small end part (10a) of the connecting rod (10) are coupled together and which has a hollow cross section; and at least one dynamic vibration absorber (20) provided inside the piston pin (2) to reduce resonance of the piston (1), the piston pin (2), and the small end part (10a) of the connecting rod (10) in combination with respect to the large end part (10b) of the connecting rod (10) during a combustion stroke.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: March 27, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Kanda, Tsunehiro Mori, Yasuhiro Sudou, Masakazu Kikuchi, Kazuo Toyoda, Tetsuya Hanzawa, Yukiyoshi Fukuda, Akira Sumitani, Masahiro Koizumi, Koichi Hirata, Shuji Takuma, Kouji Kubo, Kazuya Nishimori
  • Patent number: 9556821
    Abstract: A piston structure for an engine is provided. The piston structure includes a piston for reciprocating within a cylinder, a connecting rod having a smaller-end part and a larger-end part in both ends, respectively, the smaller-end part coupled to the piston, the larger-end part coupled to a crankshaft, a cross-sectionally hollow piston pin coupling the piston to the smaller-end part, and a dynamic absorber provided inside the piston pin, including a fixed part fixed to the piston pin and a movable part pivotally supported by the fixed part, and for suppressing the piston, the piston pin, and the smaller-end part from integrally resonating with respect to the larger-end part of the connecting rod on combustion stroke. The dynamic absorber includes an assemblable dynamic absorber in which the movable part is formed by attaching a mass adjusting part to the fixed part.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: January 31, 2017
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Hirata, Mitsutaka Yamaya, Shuji Takuma, Yasunori Kanda, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20160298718
    Abstract: In order to reduce bending vibration of a connecting rod, a dynamic absorber (50) configured to reduce the bending vibration of the connecting rod (10) is provided on a piston (1).
    Type: Application
    Filed: August 20, 2015
    Publication date: October 13, 2016
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasunori KANDA, Tsunehiro MORI, Masatoshi NITTA, Yukiyoshi FUKUDA
  • Patent number: 9347396
    Abstract: A piston pin structure for an engine is provided, which suppresses integral resonance of a piston, a piston pin, and a smaller end part of a connecting rod with respect to a larger end part of the connecting rod on the combustion stroke, as well as suppresses an increase of noise on other strokes, and restricts the fixed dynamic absorber inside the piston pin from coming off and ensures a coming-off function. The piston pin structure may include a dynamic absorber including a fixed part fixed to a piston pin, a movable part extending in the axial direction of the piston pin, and a supporting part for swingably supporting the movable part with respect to the fixed part. A restriction mechanism for mechanically restricting the movement of the dynamic absorber in the axial direction may also be included.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 24, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Hirata, Yasunori Kanda, Kouji Kubo, Mitsutaka Yamaya, Shuji Takuma, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20150240711
    Abstract: A connecting rod structure includes a connecting rod for coupling a crankshaft to a piston, the connecting rod including a larger end part formed with a shaft insertion hole for the crankshaft, a smaller end part formed with a pin insertion hole for a piston pin which couples the piston to the smaller end part, and a coupling part for coupling the larger end part to the smaller end part; and a dynamic absorber provided to the larger end part for suppressing the piston, the piston pin, and the connecting rod from integrally resonating with respect to the crankshaft. The dynamic absorber includes a fixed part fixed to the larger end part and a supporting part for coupling the fixed part to a mass part and supporting the mass part to be movable in substantially longitudinal directions of the connecting rod with respect to the fixed part.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 27, 2015
    Inventors: Yasunori Kanda, Tsunehiro Mori, Masatoshi Nitta, Masaru Ishikawa
  • Publication number: 20150219181
    Abstract: An engine piston structure includes: a piston (1); a connecting rod (10) having a small end part (10a) coupled to the piston (1), and having a large end part (10b) coupled to a crankshaft; a piston pin (2) through which the piston (1) and the small end part (10a) of the connecting rod (10) are coupled together and which has a hollow cross section; and at least one dynamic vibration absorber (20) provided inside the piston pin (2) to reduce resonance of the piston (1), the piston pin (2), and the small end part (10a) of the connecting rod (10) in combination with respect to the large end part (10b) of the connecting rod (10) during a combustion stroke.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 6, 2015
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Kanda, Tsunehiro Mori, Yasuhiro Sudou, Masakazu Kikuchi, Kazuo Toyoda, Tetsuya Hanzawa, Yukiyoshi Fukuda, Akira Sumitani, Masahiro Koizumi, Koichi Hirata, Shuji Takuma, Kouji Kubo, Kazuya Nishimori
  • Publication number: 20150075478
    Abstract: A piston structure for an engine is provided. The piston structure includes a piston for reciprocating within a cylinder, a connecting rod having a smaller-end part and a larger-end part in both ends, respectively, the smaller-end part coupled to the piston, the larger-end part coupled to a crankshaft, a cross-sectionally hollow piston pin coupling the piston to the smaller-end part, and a dynamic absorber provided inside the piston pin, including a fixed part fixed to the piston pin and a movable part pivotally supported by the fixed part, and for suppressing the piston, the piston pin, and the smaller-end part from integrally resonating with respect to the larger-end part of the connecting rod on combustion stroke. The dynamic absorber includes an assemblable dynamic absorber in which the movable part is formed by attaching a mass adjusting part to the fixed part.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 19, 2015
    Inventors: Koichi Hirata, Mitsutaka Yamaya, Shuji Takuma, Yasunori Kanda, Tatsuya Kobayashi, Takeshi Motomuro
  • Publication number: 20150075479
    Abstract: A piston pin structure for an engine is provided, which suppresses integral resonance of a piston, a piston pin, and a smaller end part of a connecting rod with respect to a larger end part of the connecting rod on the combustion stroke, as well as suppresses an increase of noise on other strokes, and restricts the fixed dynamic absorber inside the piston pin from coming off and ensures a coming-off function. The piston pin structure may include a dynamic absorber including a fixed part fixed to a piston pin, a movable part extending in the axial direction of the piston pin, and a supporting part for swingably supporting the movable part with respect to the fixed part. A restriction mechanism for mechanically restricting the movement of the dynamic absorber in the axial direction may also be included.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 19, 2015
    Inventors: Koichi Hirata, Yasunori Kanda, Kouji Kubo, Mitsutaka Yamaya, Shuji Takuma, Tatsuya Kobayashi, Takeshi Motomuro
  • Patent number: 5810694
    Abstract: A control system for an automatic transmission having at least a friction coupling element which is coupled with a hydraulic pressure increasing by way of a leveled transitional pressure has an accumulator which discharge a high level of pressure accumulated therein into the friction coupling element during a gear shift under the condition where the line pressure is low.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: September 22, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Kamada, Koichi Yamamoto, Tomoo Sawazaki, Hiroshi Shinozuka, Kazushi Kurokawa, Takamichi Teraoka, Masakazu Hombo, Naotaka Hirami, Yasunori Kanda, Akinobu Aoki, Tatsuhiko Iwasaki, Takeyoshi Kawa, Kenji Sawa
  • Patent number: 5785628
    Abstract: A control system for an automatic transmission having friction coupling elements, at least one of which is locked in 3rd and 4th gears and unlocked in 1st and 2nd gears, includes a first shift valve shiftable between 3rd and 4th gears, and second shift valve shiftable between in 2nd gear and 1st gear in which engine brake available, and a solenoid valve providing control pressure which is selectively directed to these shift valves and cause them to shift so as to lock or unlock the friction coupling elements.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: July 28, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Kamada, Kenji Sawa, Hiroshi Shinozuka, Tomoo Sawazaki, Koichi Yamamoto, Kazushi Kurokawa, Takamichi Teraoka, Masakazu Hombo, Naotaka Hirami, Yasunori Kanda, Akinobu Aoki, Tatsuhiko Iwasaki, Takeyoshi Kawa
  • Patent number: 5772550
    Abstract: A control system for an automatic transmission having a transmission gear mechanism and a plurality of friction coupling elements which are selectively locked and unlocked with hydraulic oil to change power transmission paths to place the automatic transmission into desired available gears, a first one of the friction coupling elements having a locking pressure chamber and an unlocking pressure chamber and being locked when operating oil is supplied into only the locking pressure chamber and unlocking when operating oil is coincidentally supplied into the locking pressure chamber and the unlocking pressure chamber, and a second one of the friction coupling elements having a locking/unlocking pressure chamber in communication, with the unlocking pressure chamber of the first friction coupling element and being locked only when operation oil is supplied into the locking/unlocking pressure chamber.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: June 30, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Kamada, Koichi Yamamoto, Tomoo Sawazaki, Hiroshi Shinozuka, Kazushi Kurokawa, Takamichi Teraoka, Masakazu Hombo, Naotaka Hirami, Yasunori Kanda, Akinobu Aoki, Tatsuhiko Iwasaki, Takeyoshi Kawa
  • Patent number: 5725455
    Abstract: A hydraulic control system for an automatic transmission having at least a forward clutch which is unlocked in a fourth gear and locked in other forward gears and a lock-up clutch for coupling input and output elements of a torque converter together is equipped with a pressure control valve for controlling operating pressure for the forward clutch, a lock-up control valve for connecting and disconnecting the first valve from the lock-up clutch, a pressure line through which control source pressure is introduced into the forward clutch while the first valve is in communication with the lock-up clutch, and a shift valve for discharging the control source pressure from the pressure line.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: March 10, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Kamada, Kenji Sawa, Hiroshi Shinozuka, Tomoo Sawazaki, Koichi Yamamoto, Kazushi Kurokawa, Takamichi Teraoka, Masakazu Hombo, Naotaka Hirami, Yasunori Kanda, Akinobu Aoki, Tatsuhiko Iwasaki, Takeyoshi Kawa
  • Patent number: 5665020
    Abstract: A control system for an automatic transmission having at least a friction coupling element which is coupled with a hydraulic pressure increasing by way of a leveled transitional pressure has an accumulator which discharge a high level of pressure accumulated therein into the fiction coupling element during a gear shift under the condition where the line pressure is low.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: September 9, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Shinya Kamada, Koichi Yamamoto, Tomoo Sawazaki, Hiroshi Shinozuka, Kazushi Kurokawa, Takamichi Teraoka, Masakazu Hombo, Naotaka Hirami, Yasunori Kanda, Akinobu Aoki, Tatsuhiko Iwasaki, Takeyoshi Kawa, Kenji Sawa
  • Patent number: 5586233
    Abstract: Method and apparatus for creating multi-gradation data.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: December 17, 1996
    Assignee: Fujitsu Limited
    Inventors: Haruhiko Mio, Kazuhito Fukuoka, Yasunori Kanda
  • Patent number: 4008462
    Abstract: A microprogramming control system employing a plurality of low read rate control memories, for storing micro instructions, individually addressed in turn at a rate greater than the read rate of each memory. Each addressed control memory reads out a plurality of micro instructions. A selection circuit receives the plurality of micro instructions, in time shared fashion, read out in turn from each addressed control memory, then selects and gates a single micro instruction to a storage device. One portion of the selected micro instruction is designated as an address for the next micro instruction to be read out from the same control memory, and is accordingly gated to an address storage device at the input of the corresponding control memory.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: February 15, 1977
    Assignee: Fujitsu Ltd.
    Inventor: Yasunori Kanda