Patents by Inventor Tatsuya Koga

Tatsuya Koga 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: 10474117
    Abstract: A control apparatus and the like may include a time allocation setting unit that sets a time allocation for steps in the total driving time, and an operation value calculation unit that calculates minimum operation values for the times set by the time allocation setting unit, and the time allocation setting unit sets the time allocation of the steps in the total driving time such that the difference between the minimum operation values of the steps falls within a predetermined range.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 12, 2019
    Assignee: OMRON Corporation
    Inventors: Tatsuya Koga, Masahiro Murai
  • Patent number: 10401849
    Abstract: The velocity and force of a target is controlled to have a predetermined relationship, independently of changes in the velocity at which the target is driven using a velocity command value and in an external force from the target. A controller controls a control target, driven to generate a predetermined viscous force as a reaction force, by periodically outputting a command value to the control target using a target value calculated from a command pattern for driving the control target and a feedback value from the control target relative to the target value. A correction operation unit obtains a control physical quantity different from the command value, calculates a correction command value based on a relationship between an error of the obtained control physical quantity from its target value and an error of the feedback value from the target value, and outputs the correction command value to the control target.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 3, 2019
    Assignee: OMRON Corporation
    Inventors: Tatsuya Koga, Ryuichiro Nakanishi
  • Patent number: 10168687
    Abstract: The invention provides a control device comprising: an actual value obtaining part, obtaining a torque actual value and a velocity actual value, wherein the torque actual value represents a torque generated by the driving source and the velocity actual value represents a velocity of the motion body; an inferring part, which calculates an external force inferred value and a velocity inferred value every other operation period based on the torque actual value by using an operation formula of a predetermined model representing driving of the motion body, wherein the external force inferring value represents an external force generated by the control system; and an output part, evaluating a reliability of the external force inferred value based on the velocity inferred value calculated together if the inferring part calculates the external inferred value, and effectively outputting the external force inferred value when it is judged that there is a designated reliability.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 1, 2019
    Assignee: OMRON Corporation
    Inventors: Tatsuya Koga, Masahiro Murai
  • Publication number: 20180340496
    Abstract: The present disclosure aims to stabilize, in an engine with a supercharger, a detection result of an intake air temperature sensor interposed between the supercharger and an intercooler. A gas outlet of a supercharger and a gas inlet of an intercooler are connected together via a second passage. The second passage includes, in its middle position, a narrow region with a smaller cross-sectional area than the part of the second passage extending from an upstream end of the second passage to the middle position. The narrow region is provided with the intake air temperature sensor configured to detect the gas temperature in the narrow region.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 29, 2018
    Inventors: Jiro Kato, Mitsunori Wasada, Hidesaku Ebesu, Toshihiko Hirata, Tatsuya Koga, Shuhei Tsujita
  • Publication number: 20180313900
    Abstract: An ECU obtains an OCV and an internal pressure, obtains a first estimated value of an SOC corresponding to the time of charging and a second estimated value of the SOC corresponding to the time of discharging using the obtained OCV and a first correspondence, obtains a third estimated value of an SOC corresponding to the time of charging and a fourth estimated value of the SOC corresponding to the time of discharging using the obtained internal pressure and a second correspondence, estimates the SOC using at least one of the first or the third estimated value when a first difference between the first and the third estimated value is less than a second difference between the second and the fourth estimated value, and estimates the SOC using at least one of the second or the fourth estimated value when the second difference is less than the first difference.
    Type: Application
    Filed: April 12, 2018
    Publication date: November 1, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya KOGA, Kenichi OHTA, Hiroki NAGAI
  • Publication number: 20180266302
    Abstract: Provided is an exhaust device connected to an engine body. The exhaust device includes a plurality of independent exhaust pipes, each of which has a circular cross section, and which are connected to exhaust ports of cylinders of the engine body; and a mixing pipe having a circular cross section, connected to downstream ends of the independent exhaust pipes, and through which exhaust gas that has passed through the independent exhaust pipes flows in. The independent exhaust pipes are connected to an upstream end of the mixing pipe in such a manner that parts of internal spaces of the circular cross sections overlap each other in a predetermined section from the downstream ends of the independent exhaust pipes toward upstream, and a ratio of overlapping portions of the circular cross sections gradually increases from upstream toward downstream.
    Type: Application
    Filed: November 9, 2016
    Publication date: September 20, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Jiro KATO, Tatsuya KOGA, Shinji SUMI, Haruna YANAGIDA, Norihisa MURATA
  • Publication number: 20180095438
    Abstract: A control apparatus and the like may include a time allocation setting unit that sets a time allocation for steps in the total driving time, and an operation value calculation unit that calculates minimum operation values for the times set by the time allocation setting unit, and the time allocation setting unit sets the time allocation of the steps in the total driving time such that the difference between the minimum operation values of the steps falls within a predetermined range.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 5, 2018
    Applicant: OMRON Corporation
    Inventors: Tatsuya KOGA, Masahiro MURAI
  • Publication number: 20180095451
    Abstract: An apparatus includes an input reception unit for receiving a designated driving time, and a locus unit that generates a torque locus with a maximum value at its minimum by adjusting a switching timing and a maximum value under the conditions that the torque locus is a rectangular wave, the absolute values of the maximum value and the minimum value of torque are equal, and switching between the maximum value and the minimum value of the torque occurs once.
    Type: Application
    Filed: September 21, 2017
    Publication date: April 5, 2018
    Applicant: OMRON Corporation
    Inventor: Tatsuya KOGA
  • Publication number: 20180088553
    Abstract: The invention provides a control device comprising: an actual value obtaining part, obtaining a torque actual value and a velocity actual value, wherein the torque actual value represents a torque generated by the driving source and the velocity actual value represents a velocity of the motion body; an inferring part, which calculates an external force inferred value and a velocity inferred value every other operation period based on the torque actual value by using an operation formula of a predetermined model representing driving of the motion body, wherein the external force inferring value represents an external force generated by the control system; and an output part, evaluating a reliability of the external force inferred value based on the velocity inferred value calculated together if the inferring part calculates the external inferred value, and effectively outputting the external force inferred value when it is judged that there is a designated reliability.
    Type: Application
    Filed: February 21, 2017
    Publication date: March 29, 2018
    Applicant: OMRON Corporation
    Inventors: Tatsuya KOGA, Masahiro MURAI
  • Patent number: 9905449
    Abstract: An electrostatic chuck includes: a ceramic dielectric substrate having a first major surface, a second major surface, and a through-hole; a metallic base plate which has a gas introduction path that communicates with the through-hole; and a bonding layer which is provided between the ceramic dielectric substrate and the base plate and includes a resin material. The bonding layer has a space which is provided between an opening of the through-hole in the second major surface and the gas introduction path and is larger than the opening in a horizontal direction, and a first area in which an end face of the bonding layer on a side of the space intersects with the second major surface being recessed from the opening further than a second area of the end face which is different from the first area.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 27, 2018
    Assignee: Toto Ltd.
    Inventors: Kosuke Yamaguchi, Kazuki Anada, Tatsuya Koga, Hiroki Matsui
  • Publication number: 20170259690
    Abstract: In the present invention, in a vehicle equipped with an engine, a dynamo-electric machine, and a secondary cell as a power storage device, when supplying of electric power from the engine to the power storage device is stopped, an indicator value indicating the degree to which the ion concentration in an electrolytic solution is biased by discharging of the power storage device is acquired, a shift position is acquired from a shift lever mechanism of the vehicle, the acquired shift position is the neutral position, and the acquired indicator value exceeds a threshold value at which cell degradation occurs, the charging/discharging control device for an onboard secondary cell according to the present invention causes a notification means to issue a notification as a warning to change from the neutral position to another shift position.
    Type: Application
    Filed: October 13, 2015
    Publication date: September 14, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuya KOGA, Ryo MANO, Teruo ISHISHITA, Toshihiro IWATA
  • Publication number: 20170178944
    Abstract: An electrostatic chuck includes: a ceramic dielectric substrate having a first major surface, a second major surface, and a through-hole; a metallic base plate which has a gas introduction path that communicates with the through-hole; and a bonding layer which is provided between the ceramic dielectric substrate and the base plate and includes a resin material. The bonding layer has a space which is provided between an opening of the through-hole in the second major surface and the gas introduction path and is larger than the opening in a horizontal direction, and a first area in which an end face of the bonding layer on a side of the space intersects with the second major surface being recessed from the opening further than a second area of the end face which is different from the first area.
    Type: Application
    Filed: March 7, 2017
    Publication date: June 22, 2017
    Inventors: Kosuke YAMAGUCHI, Kazuki ANADA, Tatsuya KOGA, Hiroki MATSUI
  • Publication number: 20170153634
    Abstract: The velocity and force of a target is controlled to have a predetermined relationship, independently of changes in the velocity at which the target is driven using a velocity command value and in an external force from the target. A controller controls a control target, driven to generate a predetermined viscous force as a reaction force, by periodically outputting a command value to the control target using a target value calculated from a command pattern for driving the control target and a feedback value from the control target relative to the target value. A correction operation unit obtains a control physical quantity different from the command value, calculates a correction command value based on a relationship between an error of the obtained control physical quantity from its target value and an error of the feedback value from the target value, and outputs the correction command value to the control target.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Applicant: OMRON Corporation
    Inventors: Tatsuya KOGA, Ryuichiro NAKANISHI
  • Publication number: 20170153628
    Abstract: A velocity profile is calculated to have a lower power peak or a lower torque peak and to allow a control target to reach a predetermined position within an intended time. An input reception unit receives a designated drive time. A profiling unit generates an input profile including a leading edge portion, a flat portion, and a trailing edge portion calculated based on the principle of least action.
    Type: Application
    Filed: November 23, 2016
    Publication date: June 1, 2017
    Applicant: OMRON Corporation
    Inventor: Tatsuya KOGA
  • Patent number: 9627240
    Abstract: According to an aspect of the invention, there is provided an electrostatic chuck including: a ceramic dielectric substrate having a first major surface, a second major surface, and a through-hole; a metallic base plate which has a gas introduction path that communicates with the through-hole; and a bonding layer which is provided between the ceramic dielectric substrate and the base plate and includes a resin material, the bonding layer having a space which is provided between an opening of the through-hole in the second major surface and the gas introduction path and is larger than the opening in a horizontal direction, and a first area in which an end face of the bonding layer on a side of the space intersects with the second major surface being recessed from the opening further than another second area of the end face which is different from the first area.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: April 18, 2017
    Assignee: Toto Ltd.
    Inventors: Kosuke Yamaguchi, Kazuki Anada, Tatsuya Koga, Hiroki Matsui
  • Patent number: 9611777
    Abstract: An exhaust device of a multi-cylinder engine which controls local introduction of exhaust gas to a catalyst device and a variation between cylinders of introduction positions of the exhaust gas to the catalyst device is provided. The exhaust device is arranged so that the cylinders extend in a vehicle width direction at a vehicle front part, and an exhaust line is arranged so as to extend rearward from a rear of the engine, wherein, in sequence from an upstream side of an exhaust gas flow, four independent exhaust pipes corresponding to the cylinders, collecting pipes which collect all independent exhaust pipes, and the catalyst device are provided. The single exhaust pipe includes two bending parts and a downstream part thereof is connected so that the exhaust gas is introduced from a direction that is diagonally lateral to an inlet part of the catalyst device.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 4, 2017
    Assignee: Mazda Motor Corporation
    Inventors: Jiro Kato, Tatsuya Koga, Shinji Sumi, Haruna Yanagida, Norihisa Murata
  • Patent number: 9470174
    Abstract: An engine body includes a cylinder with a geometrical compression ratio of 15 or higher, and is supplied with fuel containing at least gasoline. When an operating mode of the engine body is in a high load range, a controller (i.e., a PCM 10) drives a fuel injection valve (i.e., an injector) 67 to inject the fuel at a time within a retarded period between a terminal stage of a compression stroke and an initial stage of an expansion stroke in a low speed range. The controller drives the fuel injection valve to inject the fuel in an intake stroke until an intake valve 21 is closed in a high-load high-speed range.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: October 18, 2016
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kouhei Iwai, Masahisa Yamakawa, Takashi Youso, Tatsuya Fujikawa, Tatsuya Koga
  • Publication number: 20160084139
    Abstract: An exhaust device of a multi-cylinder engine which controls local introduction of exhaust gas to a catalyst device and a variation between cylinders of introduction positions of the exhaust gas to the catalyst device is provided. The exhaust device is arranged so that the cylinders extend in a vehicle width direction at a vehicle front part, and an exhaust line is arranged so as to extend rearward from a rear of the engine, wherein, in sequence from an upstream side of an exhaust gas flow, four independent exhaust pipes corresponding to the cylinders, collecting pipes which collect all independent exhaust pipes, and the catalyst device are provided. The single exhaust pipe includes two bending parts and a downstream part thereof is connected so that the exhaust gas is introduced from a direction that is diagonally lateral to an inlet part of the catalyst device.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 24, 2016
    Inventors: Jiro Kato, Tatsuya Koga, Shinji Sumi, Haruna Yanagida, Norihisa Murata
  • Patent number: 9261029
    Abstract: A multi-cylinder gasoline engine is provided. The engine includes an engine body having a plurality of cylinders, an exhaust manifold through which exhaust gas discharged from each of the cylinders of the engine body passes, and a controller for controlling various instruments provided to the engine body and the exhaust manifold. The engine body includes a switch mechanism. The exhaust manifold includes a plurality of independent exhaust passages, a gathering section, a negative pressure generating device, bypass passages, and openable-and-closable flow switch valves. The controller controls the injector, the ignition plug, the switch mechanism, and the flow switch valve so that a CI combustion is performed within a predetermined first operating range and an SI combustion is performed within a second operating range set on a higher engine load side than the first operating range.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 16, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Shuhei Tsujita, Tatsuya Koga
  • Publication number: 20150279714
    Abstract: According to an aspect of the invention, there is provided an electrostatic chuck including: a ceramic dielectric substrate having a first major surface, a second major surface, and a through-hole; a metallic base plate which has a gas introduction path that communicates with the through-hole; and a bonding layer which is provided between the ceramic dielectric substrate and the base plate and includes a resin material, the bonding layer having a space which is provided between an opening of the through-hole in the second major surface and the gas introduction path and is larger than the opening in a horizontal direction, and a first area in which an end face of the bonding layer on a side of the space intersects with the second major surface being recessed from the opening further than another second area of the end face which is different from the first area.
    Type: Application
    Filed: March 20, 2015
    Publication date: October 1, 2015
    Inventors: Kosuke YAMAGUCHI, Kazuki ANADA, Tatsuya KOGA, Hiroki MATSUI