Patents by Inventor Kouichi Shimizu

Kouichi Shimizu 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: 11932221
    Abstract: A system and method control an automobile by decelerating the automobile at a first deceleration using a braking mechanism in response to detecting that a parking brake switch is turned on, a second deceleration which is smaller than the first deceleration, in response to not detecting that the parking brake switch is turned on and determining that the driver is incapacitated, and a third deceleration which is smaller than the first deceleration, in response to determining that an SOS switch is turned on, detecting that the parking brake switch is changed from on to off, and not determining that the driver is incapacitated.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: March 19, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Hamada, Yuma Nishijo, Kouichi Kojima, Yoshiyuki Yamashita, Shinya Kyusaka, Yuta Tsuji, Nobuhiro Nonaka, Daisuke Shimizu, Keigo Fukuda, Yasuhiro Nakashima, Taro Oike
  • Patent number: 11208946
    Abstract: A determination is made whether or not the condition that the amount V of condensed water remaining in an intake passage has exceeded a predetermined upper limit has been met, based on an input parameter associated with the amount V. If, during an engine operation in an unsupercharged mode, a determination is made that the condition has been met, a condensed water discharging operation of a supercharger is performed such that the condensed water remaining is discharged to a cylinder of the engine through operation of the supercharger.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 28, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Kouichi Shimizu, Tsukasa Hoshino, Ken Yoshida, Hirofumi Shinohara
  • Patent number: 11118546
    Abstract: An intake passage includes: a main intake passage provided with a throttle valve and extending from one side toward the other side along a cylinder bank; and a bypass passage provided with an EGR valve and connected to a part of the main intake passage located toward the other side with respect to the throttle valve. The bypass passage extends from a branch of the main intake passage toward the one side and then turns back and extends toward the other side. The EGR valve is located in a part of the bypass passage extending toward the other side and overlapping with a part extending from the branch to the one side.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 14, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu, Manabu Sugimoto
  • Patent number: 10900411
    Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: January 26, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
  • Publication number: 20200370467
    Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.
    Type: Application
    Filed: August 25, 2017
    Publication date: November 26, 2020
    Inventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
  • Publication number: 20200370468
    Abstract: A determination is made whether or not the condition that the amount V of condensed water remaining in an intake passage has exceeded a predetermined upper limit has been met, based on an input parameter associated with the amount V. If, during an engine operation in an unsupercharged mode, a determination is made that the condition has been met, a condensed water discharging operation of a supercharger is performed such that the condensed water remaining is discharged to a cylinder of the engine through operation of the supercharger.
    Type: Application
    Filed: October 12, 2018
    Publication date: November 26, 2020
    Inventors: Kouichi SHIMIZU, Tsukasa HOSHINO, Ken YOSHIDA, Hirofumi SHINOHARA
  • Publication number: 20200355147
    Abstract: An intake passage includes: a main intake passage provided with a throttle valve and extending from one side toward the other side along a cylinder bank; and a bypass passage provided with an EGR valve and connected to a part of the main intake passage located toward the other side with respect to the throttle valve. The bypass passage extends from a branch of the main intake passage toward the one side and then turns back and extends toward the other side. The EGR valve is located in a part of the bypass passage extending toward the other side and overlapping with a part extending from the branch to the one side.
    Type: Application
    Filed: August 25, 2017
    Publication date: November 12, 2020
    Inventors: Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu, Manabu Sugimoto
  • Patent number: 10774793
    Abstract: Substances in external EGR gas are smoothly guided to a combustion chamber. An intake passage includes: a main intake passage including intake ports and communicating with a combustion chamber and having a supercharger interposed in the main intake passage; and a bypass passage branching off from the main intake passage upstream of the supercharger, and connected downstream of the supercharger; a flow rage adjustment valve changing a cross-sectional flow area of the bypass passage. The bypass passage is provided above the main intake passage, and includes an upper passage to which an EGR passage is connected.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: September 15, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Hidesaku Ebesu, Kouichi Shimizu, Ryotaro Nishida
  • Patent number: 10400643
    Abstract: An oil supply path passes through members separate from a cylinder head (4) to supply a lubricant to bearings (73, 74) of camshaft journals. The oil supply path includes an oil supply passage (66) for the camshaft above the camshaft (19, 20), a connection passage (64) for the camshaft between the oil supply passage for the camshaft and an internal passage (61, 62) in the cylinder head (4), and branch oil passages (68) for the camshaft journals. Each branch oil passage branches off from the oil supply passage for the camshaft, and is connected to one of the bearings (73, 74) from above. Each of the branch passages includes a throttle (168) with a smaller cross-sectional flow area than the oil supply passage for the camshaft.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 3, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Kashiwabara, Tsuyoshi Yamamoto, Yasushi Nakahara, Kouichi Shimizu
  • Patent number: 10384381
    Abstract: When a plurality of striped molded products are molded at a time, the molded products having a striped pattern and an outstanding design property are obtained by preventing part of molten resins from being unevenly distributed in an inappropriate manner when being fed into a cavity of a metal mold. A hot runner nozzle is provided with a first resin flow path and a plurality of second resin flow paths. The first flow path has a funnel section which continues with a nozzle gate at a centripetal position and which allows a first molten resin to be gathered at the centripetal position of the funnel section so as to feed the resin into the nozzle gate. The second resin flow paths have a plurality of corresponding discharge ports facing and communicating with the funnel section of the first resin flow path, each of the discharge ports being disposed around the centripetal position, so that the second molten resin different from the first molten resin is fed into the funnel section.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: August 20, 2019
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yasuhiko Takeuchi, Minoru Yamazaki, Yoshiharu Yanagimachi, Kouichi Shimizu
  • Publication number: 20190063376
    Abstract: Substances in external EGR gas are smoothly guided to a combustion chamber. An intake passage includes: a main intake passage including intake ports and communicating with a combustion chamber and having a supercharger interposed in the main intake passage; and a bypass passage branching off from the main intake passage upstream of the supercharger, and connected downstream of the supercharger; a flow rage adjustment valve changing a cross-sectional flow area of the bypass passage. The bypass passage is provided above the main intake passage, and includes an upper passage to which an EGR passage is connected.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 28, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hidesaku EBESU, Kouichi SHIMIZU, Ryotaro NISHIDA
  • Patent number: 10119439
    Abstract: A blow-by gas recirculating apparatus includes: an oil separator provided to a side surface of a cylinder block at one side of an engine; a communication part providing communication between a blow-by gas outlet port of the oil separator and an intake manifold; and a PCV valve. The PCV valve is provided to the intake manifold, and the communication part is connected to the PCV valve. The PCV valve provided to the intake manifold is positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 6, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Kashiwabara, Kouichi Shimizu
  • Publication number: 20180274407
    Abstract: An oil supply path passes through members separate from a cylinder head (4) to supply a lubricant to bearings (73, 74) of camshaft journals. The oil supply path includes an oil supply passage (66) for the camshaft above the camshaft (19, 20), a connection passage (64) for the camshaft between the oil supply passage for the camshaft and an internal passage (61, 62) in the cylinder head (4), and branch oil passages (68) for the camshaft journals. Each branch oil passage branches off from the oil supply passage for the camshaft, and is connected to one of the bearings (73, 74) from above. Each of the branch passages includes a throttle (168) with a smaller cross-sectional flow area than the oil supply passage for the camshaft.
    Type: Application
    Filed: March 14, 2017
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi KASHIWABARA, Tsuyoshi YAMAMOTO, Yasushi NAKAHARA, Kouichi SHIMIZU
  • Patent number: 9725089
    Abstract: A vehicle control device includes an input unit configured to receive plural requests for a physical amount to be controlled in a vehicle; a judgment unit configured to judge whether or not a degree of priority of each of the received requests is high: a second mediation unit configured to, when there are plural requests whose degrees of priority are judged not to be high, mediate these plural requests to determine a control target value (Rm); a transfer unit configured to, when there is a request whose degree of priority is judged to be high, transfer this request as the control target value; and an output unit configured to output the control target value transferred from the transfer unit or determined by the second mediation unit to a VDC.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 8, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takanori Tashiro, Makoto Uemura, Kouichi Shimizu
  • Publication number: 20170152777
    Abstract: A blow-by gas recirculating apparatus includes: an oil separator provided to a side surface of a cylinder block at one side of an engine; a communication part providing communication between a blow-by gas outlet port of the oil separator and an intake manifold; and a PCV valve. The PCV valve is provided to the intake manifold, and the communication part is connected to the PCV valve. The PCV valve provided to the intake manifold is positioned above the blow-by gas outlet port of the oil separator with the engine mounted on a vehicle.
    Type: Application
    Filed: October 24, 2016
    Publication date: June 1, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi KASHIWABARA, Kouichi SHIMIZU
  • Patent number: 9381689
    Abstract: At a filling termination stage when performing multi-layer molding by means of a hot runner nozzle, an intermediate layer in a multi-layer molded article is prevented from being formed in a shape causing the intermediate layer to enter into a sprue in a portion of a mold cavity in a mold corresponding to the sprue. The multi-layer molded article with no intermediate layer being exposed in a sprue cut portion can be therefore obtained. In this manner, a diameter of a discharge port opening and closing mechanism part for opening and closing the resin discharge ports in the shut pin is made different from a diameter of a nozzle gate opening and closing mechanism part configured of the projection for pushing out the molten resin in the nozzle gate.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 5, 2016
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yasuhiko Takeuchi, Minoru Yamazaki, Kouichi Shimizu
  • Publication number: 20160082961
    Abstract: A vehicle control device includes an input unit configured to receive plural requests for a physical amount to be controlled in a vehicle; a judgment unit configured to judge whether or not a degree of priority of each of the received requests is high: a second mediation unit configured to, when there are plural requests whose degrees of priority are judged not to be high, mediate these plural requests to determine a control target value (Rm); a transfer unit configured to, when there is a request whose degree of priority is judged to be high, transfer this request as the control target value; and an output unit configured to output the control target value transferred from the transfer unit or determined by the second mediation unit to a VDC.
    Type: Application
    Filed: April 8, 2014
    Publication date: March 24, 2016
    Inventors: Takanori TASHIRO, Makoto UEMURA, Kouichi SHIMIZU
  • Publication number: 20150079321
    Abstract: When a plurality of striped molded products are molded at a time, the molded products having a striped pattern and an outstanding design property are obtained by preventing part of molten resins from being unevenly distributed in an inappropriate manner when being fed into a cavity of a metal mold. A hot runner nozzle is provided with a first resin flow path and a plurality of second resin flow paths. The first flow path has a funnel section which continues with a nozzle gate at a centripetal position and which allows a first molten resin to be gathered at the centripetal position of the funnel section so as to feed the resin into the nozzle gate. The second resin flow paths have a plurality of corresponding discharge ports facing and communicating with the funnel section of the first resin flow path, each of the discharge ports being disposed around the centripetal position, so that the second molten resin different from the first molten resin is fed into the funnel section.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventors: Yasuhiko TAKEUCHI, Minoru YAMAZAKI, Yoshiharu YANAGIMACHI, Kouichi SHIMIZU
  • Publication number: 20150014878
    Abstract: At a filling termination stage when performing multi-layer molding by means of a hot runner nozzle, an intermediate layer in a multi-layer molded article is prevented from being formed in a shape causing the intermediate layer to enter into a sprue in a portion of a mold cavity in a mold corresponding to the sprue. The multi-layer molded article with no intermediate layer being exposed in a sprue cut portion can be therefore obtained. In this manner, a diameter of a discharge port opening and closing mechanism part for opening and closing the resin discharge ports in the shut pin is made different from a diameter of a nozzle gate opening and closing mechanism part configured of the projection for pushing out the molten resin in the nozzle gate.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 15, 2015
    Inventors: Yasuhiko TAKEUCHI, Minoru YAMAZAKI, Kouichi SHIMIZU
  • Patent number: 8109578
    Abstract: Bolt holes 23 are provided for press fitting and securing bolts 5 for mounting a brake rotor 4 to a flange 22 of a hub wheel. Each bolt hole 23 includes widening portions 28a, 28b, which are tapered to widen from the center portion of the bolt hole 23 toward a brake rotor mounting surface 25 of the flange 22. The widening portions 28a, 28b are formed by two tapered surfaces having different taper angles with respect to the axis of the bolt hole 23 from an opening rim of the bolt hole toward the inside. The taper angle of an outer tapered surface connected to the opening rim is greater than the taper angle of an inner tapered surface connected to the outer tapered surface. In machining the hub wheel 2 configured as described above, the brake rotor mounting surface 25 is finished after machining the bolt holes 23.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: February 7, 2012
    Assignee: JTEKT Corporation
    Inventors: Yosuke Fujiwara, Kouichi Shimizu