Patents by Inventor Atsushi Nagai

Atsushi Nagai 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: 20190320159
    Abstract: The present invention provides a highly reliable stereo camera in which it is possible to prevent the heat generated by an image processing element from contributing to an increase in the temperature of an image sensor, even if the stereo camera is made more compact and the heat density is thus increased inside the stereo camera.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 17, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Mieko ISHII, Atsushi KAZAMA, Seiichi KATOU, Kengo SUZUKI, Hidenori SHINOHARA, Hiroaki NAGAI, Kenichi TAKEUCHI
  • Publication number: 20190306599
    Abstract: A front left speaker cover for a front left speaker includes a first hole forming portion in which holes each having a bottom are formed. The first hole forming portion is a section including a first edge of the front left speaker cover. The holes include a first hole and a second hole. The first hole is formed in the first edge of the front left speaker cover and opens in a surface direction of the front left speaker cover. The second hole is formed in a section different from the first edge and a fourth edge. The distance from the surface of the front left speaker cover to the bottom of the first hole is shorter than the distance from the surface of the front left speaker cover to the bottom of the second hole.
    Type: Application
    Filed: March 25, 2019
    Publication date: October 3, 2019
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuyuki NAGAI, Hiroki TAKADA, Atsushi YAMAGUCHI
  • Publication number: 20190292970
    Abstract: A catalyst state estimation apparatus includes a first sensor, a memory and a processor. The first sensor is configured to acquire information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine. The memory is configured to previously store a catalyst state estimation model that includes at least one mathematical model. The processor is configured to estimate a removal performance of the catalyst by applying the information about the catalyst acquired by the first sensor to the catalyst state estimation model.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takato IKEDO, Matsuei Ueda, Makoto Nagaoka, Harufumi Muto, Kohei Mori, Hitoshi Hosaki, Atsushi Nagai, Satoshi Takamoto
  • Publication number: 20190283794
    Abstract: A gap concealing structure for a vehicle includes an instrument cluster frame, a steering column, a steering column cover, and a flexible concealing member that conceals the gap between the instrument cluster frame and the steering column cover in the front-rear direction of the vehicle. The instrument cluster frame includes a curvilinear recess that is recessed upward away from the steering column and an attachment wall that extends in the up-down direction and the left-right direction of the vehicle from the lower surface of the recess. The concealing member has a first end and a second end in the front-rear direction of the vehicle. The first end of the concealing member is attached to the attachment wall of the instrument cluster frame. The second end of the concealing member is attached to the steering column cover.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 19, 2019
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuyuki NAGAI, Atsushi YAMAGUCHI
  • Publication number: 20190276036
    Abstract: A driving assistance device includes a driving state detection portion that detects a driving state of a vehicle by a driver; an environment detection portion that detects an environment in which, the vehicle travels; an emotion detection portion that detects the driver's emotion or change in emotion; a characteristic estimation portion that estimates the drivers characteristic with respect to the vehicle on the basis of the driving state of the driver in the environment detected by the environment detection portion, and the driver's emotion or change in emotion during the driving; and a change portion that changes setting of various control in the vehicle on the basis of the driver's characteristic estimated by the characteristic estimation portion.
    Type: Application
    Filed: November 28, 2016
    Publication date: September 12, 2019
    Inventors: Kohei Noguchi, Ryuichi Nagai, Hideki Kato, Yuki Tsuda, Atsushi Ito
  • Patent number: 10405570
    Abstract: Provided is a method of manufacturing a tobacco raw material in which the green color of the tobacco raw material is maintained and a browning-involved enzyme included in tobacco leaves is deactivated. Specifically, a method of manufacturing a tobacco raw material is provided that includes a step for heating a tobacco leaf material, which has an a* value of 1.0 or less, the a* value being expressed by the L*a*b* method, and which has a moisture content of 8 wt % or less, at a temperature of 75° C. or higher and under a humidity-controlled environment so that the a* value is 1.0 or less and the content of the browning-involved enzyme is 0.1 U/g or less.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: September 10, 2019
    Assignee: JAPAN TOBACCO INC.
    Inventors: Atsushi Nagai, Kei Kobayashi, Hiroyuki Chida, Kazuo Mori, Hiroshi Otaki
  • Publication number: 20190249615
    Abstract: An engine start controller includes an injection amount calculating portion that is configured to calculate, as an assist injection amount, an injection amount of fuel injected from a fuel injection valve of an engine in an engine start-up period until the engine rotation speed exceeds a predetermined starting rotation speed from zero. The injection amount calculating portion is configured such that, in a case in which the rotation speed of the engine is higher than or equal to a threshold value that is a value less than the starting rotation speed, the injection amount calculating portion calculates the assist injection amount to be smaller when the engine is started by using the motor generator than when the engine is started by using the starter.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 15, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji MATSUMURA, Atsushi NAGAI
  • Patent number: 10309292
    Abstract: A coolant circulation system includes a coolant circuit including a water jacket, a motor-driven pump, an outlet liquid temperature sensor, and a controller. The controller executes variation determination control for driving the motor-driven pump to determine whether a variation in the temperature of the coolant in a diesel engine is equal to or less than a predetermined value based on an outlet temperature detected by the outlet liquid temperature sensor. The controller executes circulation stop control on condition that it is determined that the variation in the temperature of the coolant is equal to or less than the predetermined value. The controller changes the period during which the circulation stop control is executed in accordance with the outlet liquid temperature detected at the start of the circulation stop control.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 4, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Nagai, Kohichiroh Yonemura
  • Publication number: 20190119526
    Abstract: An occurrence of a dimple during glass polishing is suppressed by scraping a fine scratch that will become the dimple to be grown in a pre-polishing, followed by main polishing. However, at a mark of the dimple in which the growth thereof is suppressed in the pre-polishing, fine roughening of a surface is generated. Further, a polishing liquid containing hydrofluoric acid, an alkali metal, water, and a surfactant that is a sulfonic acid-type or sulfate-type surfactant can suppress excess crystal growth of a deposit formed in a fine scratch in pre-polishing and suppress roughening of a surface after polishing.
    Type: Application
    Filed: September 22, 2017
    Publication date: April 25, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Haruka NISHIKAWA, Toshiyuki IEDA, Atsushi NAGAI, Kazuya SHIMADA
  • Publication number: 20180252146
    Abstract: A coolant circulation system includes a coolant circuit including a water jacket, a motor-driven pump, an outlet liquid temperature sensor, and a controller. The controller executes variation determination control for driving the motor-driven pump to determine whether a variation in the temperature of the coolant in a diesel engine is equal to or less than a predetermined value based on an outlet temperature detected by the outlet liquid temperature sensor. The controller executes circulation stop control on condition that it is determined that the variation in the temperature of the coolant is equal to or less than the predetermined value. The controller changes the period during which the circulation stop control is executed in accordance with the outlet liquid temperature detected at the start of the circulation stop control.
    Type: Application
    Filed: December 28, 2017
    Publication date: September 6, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi NAGAI, Kohichiroh YONEMURA
  • Patent number: 9726224
    Abstract: A front bearing (tapered roller bearing) includes an inner ring, an outer ring, a plurality of tapered rollers, a cage, and a lubricating oil holding member. The lubricating oil holding member includes: a cylindrical portion having an axial length from a large diameter-side outer ring end surface to an end portion of the cage and capable of resisting a pressing force for press-fitting the outer ring; a fitting hook that is connected to one end of the cylindrical portion, that projects in the axial direction from an abutment surface which is in surface contact with the large diameter-side outer ring end surface, and that is fitted in an engagement groove portion provided in an outer peripheral surface of the outer ring; and a projection that projects radially inward from an inner peripheral surface of the cylindrical portion.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 8, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Akiyuki Suzuki, Atsushi Nagai
  • Publication number: 20170172199
    Abstract: Provided is a method of manufacturing a tobacco raw material in which the green color of the tobacco raw material is maintained and a browning-involved enzyme included in tobacco leaves is deactivated. Specifically, a method of manufacturing a tobacco raw material is provided that includes a step for heating a tobacco leaf material, which has an a* value of 1.0 or less, the a* value being expressed by the L*a*b* method, and which has a moisture content of 8 wt % or less, at a temperature of 75° C. or higher and under a humidity-controlled environment so that the a* value is 1.0 or less and the content of the browning-involved enzyme is 0.1 U/g or less.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 22, 2017
    Applicant: JAPAN TOBACCO INC.
    Inventors: Atsushi NAGAI, Kei KOBAYASHI, Hiroyuki CHIDA, Kazuo MORI, Hiroshi OTAKI
  • Patent number: 9683599
    Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers provided between the inner ring and the outer ring, and an annular cage. The cage has a small-diameter annular portion on a first side in an axial direction, a large-diameter annular portion on a second side in an axial direction, and a plurality of cage bar portions. The cage has pockets that are spaces each formed between the large-diameter annular portion and the small-diameter annular portion and between the adjacent cage bar portions in a circumferential direction and in which the tapered rollers are held. The cage further has a roller retaining portion that inhibits the tapered rollers housed in the pockets from falling outward in a radial direction. A recessed portion is formed in the small-diameter annular portion to reduce rigidity of the small-diameter annular portion.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: June 20, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Atsushi Nagai, Kenichi Ono
  • Patent number: 9644672
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and also having a cone back face rib that is located on the second side of the inner ring in the axial direction and that protrudes outward in a radial direction, a plurality of tapered rollers, an annular cage, and a reservoir portion provided on the second side of the outer ring in the axial direction and having a recessed groove that is formed on an inner periphery of the reservoir portion and in which lubricant is stored. The recessed groove has a recess and protrusion at its bottom.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 9, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Atsushi Nagai, Akiyuki Suzuki
  • Patent number: 9624970
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and having a cone large face rib that is located on the second side of the inner ring in the axial direction, a plurality of tapered rollers, an annular cage, and a holding member provided on the second side of the outer ring in the axial direction to enable a lubricant inside the bearing to be held. The holding member has a cylindrical portion provided adjacently to the outer ring and a protruding portion protruding inward from the cylindrical portion in the radial direction. A slit is formed in the cylindrical portion to separate a radially inner portion, on which the protruding portion is provided, from a radially outer portion.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: April 18, 2017
    Assignee: JTEKT CORPORATION
    Inventors: Atsushi Nagai, Akiyuki Suzuki
  • Publication number: 20160281775
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and also having a cone back face rib that is located on the second side of the inner ring in the axial direction and that protrudes outward in a radial direction, a plurality of tapered rollers, an annular cage, and a reservoir portion provided on the second side of the outer ring in the axial direction and having a recessed groove that is formed on an inner periphery of the reservoir portion and in which lubricant is stored. The recessed groove has a recess and protrusion at its bottom.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Akiyuki SUZUKI
  • Publication number: 20160281773
    Abstract: A tapered roller bearing includes an outer ring having an outer-ring raceway surface that increases in diameter from a first side toward a second side in an axial direction, an inner ring having an inner-ring raceway surface and having a cone large face rib that is located on the second side of the inner ring in the axial direction, a plurality of tapered rollers, an annular cage, and a holding member provided on the second side of the outer ring in the axial direction to enable a lubricant inside the bearing to be held. The holding member has a cylindrical portion provided adjacently to the outer ring and a protruding portion protruding inward from the cylindrical portion in the radial direction. A slit is formed in the cylindrical portion to separate a radially inner portion, on which the protruding portion is provided, from a radially outer portion.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Akiyuki SUZUKI
  • Publication number: 20160281774
    Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers provided between the inner ring and the outer ring, and an annular cage. The cage has a small-diameter annular portion on a first side in an axial direction, a large-diameter annular portion on a second side in an axial direction, and a plurality of cage bar portions. The cage has pockets that are spaces each formed between the large-diameter annular portion and the small-diameter annular portion and between the adjacent cage bar portions in a circumferential direction and in which the tapered rollers are held. The cage further has a roller retaining portion that inhibits the tapered rollers housed in the pockets from falling outward in a radial direction. A recessed portion is formed in the small-diameter annular portion to reduce rigidity of the small-diameter annular portion.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 29, 2016
    Applicant: JTEKT CORPORATION
    Inventors: Atsushi NAGAI, Kenichi ONO
  • Patent number: 9441674
    Abstract: A ball bearing includes an outer ring; an inner ring; a plurality of balls; and a cage that has an annular shape. Oil flows into an area between the outer ring and the inner ring from one side in an axial direction and flows out from the other side in the axial direction. The cage includes an annular portion provided on an oil inflow side, and bar portions extending from the annular portion toward an oil outflow side. An outer peripheral end portion of the annular portion is constituted by a corner portion at which an axial outer end face intersects with an outer peripheral surface. An axial position of a tip end of the corner portion is substantially same as an axial position of a side surface of the outer ring.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 13, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Akiyuki Suzuki, Daisuke Okamoto, Hiroyuki Ohshima, Atsushi Nagai
  • Patent number: 9299653
    Abstract: This electronic component is provided with an inorganic substrate, a conductor film formed on a surface of the substrate, and bonding wires bonded to a part of said conductor film, and wire bonding sections are formed on at least a part of the electronic component. The part of the conductor film at least forming the aforementioned wire bonding sections contains an Ag-based metal formed of Ag or an alloy having Ag as the main constituent and a metal oxide which coats said Ag-based metal and which has, as a constituent element, any of the elements selected from the group consisting of Al, Zr, Ti, Y, Ca, Mg, and Zn. The coating quantity of the metal oxide is a quantity corresponding to 0.02 to 0.1 parts by mass relative to 100 parts by mass of the aforementioned Ag-based metal.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: March 29, 2016
    Assignees: TDK CORPORATION, NORITAKE CO., LTD.
    Inventors: Minoru Satoh, Takehiro Yamashita, Atsushi Nagai, Yasuo Adachi