Patents by Inventor Tatsuo Kobayashi

Tatsuo Kobayashi 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: 20200010942
    Abstract: An aluminum alloy sheet according to the present disclosure includes 0.05 to 0.60% by mass of Si, 0.05 to 0.80% by mass of Fe, 0.05 to 0.25% by mass of Cu, 0.80 to 1.50% by mass of Mn, 0.80 to 1.50% by mass Mg, Al, and inevitable impurities. In this aluminum alloy sheet, a 45° caring ratio of a cup formed by a first drawing of the aluminum alloy sheet is 2.0% or less, and a value obtained by subtracting the 45° caring ratio from a 0-180° caring ratio of the cup formed by the first drawing of the aluminum alloy sheet is ?1.0% or more and 2.0% or less.
    Type: Application
    Filed: February 1, 2018
    Publication date: January 9, 2020
    Inventors: Ryohei Kobayashi, Satoshi Suzuki, Tatsuo Oba
  • Patent number: 10508603
    Abstract: An apparatus for controlling an internal combustion engine is provided. An engine includes a compression release mechanism and a fuel injection valve. The compression release mechanism variably controls the opening degree of a valve member, and thereby connects the combustion chamber of the engine with at least one of the intake passage and the exhaust passage in order to release in-cylinder pressure during at least the compression stroke. A controller controls the fuel injection valve to execute coasting with the fuel cut off in which the fuel is cut off under a predetermined condition, and while executing coasting with the fuel cut off, controls the compression release mechanism to increase the opening degree of the valve member of the compression release mechanism as the speed of the engine is higher.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: December 17, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki Nishida, Tatsuo Kobayashi
  • Patent number: 10436572
    Abstract: An object of the present invention is to provide a compact and highly-accurate three-dimensional shape measurement apparatus. The three-dimensional shape measurement apparatus according to the present invention causes a part of a measurement light to proceed in a direction which is different from a direction with respect to a subject as an angle measurement light, and detects a rotation angle using the angle measurement light.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 8, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Watanabe, Tatsuo Hariyama, Masayuki Kobayashi
  • Publication number: 20170292460
    Abstract: An apparatus for controlling an internal combustion engine is provided. An engine includes a compression release mechanism and a fuel injection valve. The compression release mechanism variably controls the opening degree of a valve member, and thereby connects the combustion chamber of the engine with at least one of the intake passage and the exhaust passage in order to release in-cylinder pressure during at least the compression stroke. A controller controls the fuel injection valve to execute coasting with the fuel cut off in which the fuel is cut off under a predetermined condition, and while executing coasting with the fuel cut off, controls the compression release mechanism to increase the opening degree of the valve member of the compression release mechanism as the speed of the engine is higher.
    Type: Application
    Filed: August 10, 2015
    Publication date: October 12, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideyuki NISHIDA, Tatsuo KOBAYASHI
  • Patent number: 9574535
    Abstract: A fuel injection valve includes: a needle valve including a seat portion on a tip side thereof; a nozzle body including a seat surface on which the seat portion is placed, and a swirl stabilization chamber on a downstream side of the seat surface, the nozzle body having an injection hole formed so as to have an inlet in the swirl stabilization chamber; a swirl flow generating portion having swirl grooves configured to give a swirling component to fuel to be introduced into the swirl stabilization chamber; and a fuel collision portion provided in a tip portion of the needle valve, the fuel collision portion being configured such that, in a state where the needle valve is opened, the fuel collision portion intersects with a virtual surface extended toward the injection hole from the seat surface included in the nozzle body.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: February 21, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tatsuo Kobayashi
  • Patent number: 9556842
    Abstract: A fuel injection valve includes: a needle valve with a seat surface at a distal end; a nozzle body with a seat section on which the seat surface rests and with an injection opening disposed downstream of the seat section; and a swirl flow generating section with a spiral groove for causing fuel injected via the injection opening to swirl. The seat surface includes a first contact point. The first contact point contacts a second contact point included in the seat section during valve closing. A line segment that is drawn by connecting the first contact point and the second contact point during valve opening intersects a virtual straight line passing a bottom of a first groove section that appears the most downstream side of a cross section of the swirl flow generating portion in a plane including a central axis of the needle valve and a bottom of a second groove section that appears one step upstream side of the first groove portion.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: January 31, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi
  • Patent number: 9429125
    Abstract: Test liquid (3) including thermosetting resin is injected from an injection valve (2). Light (L) is irradiated to a spray (6) of the test liquid (3) injected from the injection valve (2) as a treatment for producing a hardening effect to the thermosetting resin. Liquid drops in the spray (6) are hardened and collected as particles. Spray characteristics such as a particle size distribution of the injection valve or the like are analyzed by using the collected particles.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 30, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Sachio Mori, Tatsuo Kobayashi
  • Patent number: 9249768
    Abstract: Test liquid (3) including thermosetting resin is injected from an injection valve (2). Light (L) is irradiated to a spray (6) of the test liquid (3) injected from the injection valve (2) as a treatment for producing a hardening effect to the thermosetting resin. Liquid drops in the spray (6) are hardened and collected as particles. Spray characteristics such as a particle size distribution of the injection valve or the like are analyzed by using the collected particles.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: February 2, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Sachio Mori, Tatsuo Kobayashi
  • Patent number: 9194323
    Abstract: A fuel injection device is equipped with a fuel injection valve that is mounted in an engine body and injects fuel containing air bubbles, and void fraction adjustment means that changes a void fraction of the fuel that is to be injected from the fuel injection valve. The void ratio adjustment means increases the fuel pressure of the fuel to be injected from the fuel injection valve when an increase of the void fraction is requested. The void fraction adjustment means adjusts the void fraction of the fuel by changing temperature of the fuel to be injected from the fuel injection valve. By appropriately controlling the void fraction, both fuel atomization and securement of the net amount of fuel can be achieved.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: November 24, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motonari Yarino, Tatsuo Kobayashi
  • Patent number: 9175656
    Abstract: A fuel injection valve includes a nozzle body including an injection aperture; a needle that is slidably located in the nozzle body, forms a fuel introduction path between the needle and the nozzle body, and is seated on a seat portion in the nozzle body; a swirling flow generating portion that is located more upstream than the seat portion, and imparts a swirl with respect to a sliding direction of the needle to fuel introduced from the fuel introduction path; a swirl velocity increasing portion that is located more downstream than the seat portion, and increases a swirl velocity of a swirling flow generated in the swirling flow generating portion; and an air bubble reserving portion that is located more downstream than the swirl velocity increasing portion, and reserves air bubbles generated by passage through the swirl velocity increasing portion. The injection aperture opens in the air bubble reserving portion.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: November 3, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi
  • Publication number: 20150292460
    Abstract: A fuel injection valve includes: a needle valve including a seat portion on a tip side thereof; a nozzle body including a seat surface on which the seat portion is placed, and a swirl stabilization chamber on a downstream side of the seat surface, the nozzle body having an injection hole formed so as to have an inlet in the swirl stabilization chamber; a swirl flow generating portion having swirl grooves configured to give a swirling component to fuel to be introduced into the swirl stabilization chamber; and a fuel collision portion provided in a tip portion of the needle valve, the fuel collision portion being configured such that, in a state where the needle valve is opened, the fuel collision portion intersects with a virtual surface extended toward the injection hole from the seat surface included in the nozzle body.
    Type: Application
    Filed: October 3, 2013
    Publication date: October 15, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo KOBAYASHI
  • Patent number: 9116085
    Abstract: The present invention is a mist testing device having a freezing chamber 30 (a mist-freeze unit) that freezes a mist particle injected from a injection valve 12, a tray 40 (a frozen-mist-hold unit) that holds a frozen mist particle 42 frozen by the freezing chamber 30, and an analyze unit 86 that analyzes the frozen mist particle 42 held by the tray 40.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: August 25, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi
  • Publication number: 20150090225
    Abstract: A fuel injection valve includes: a needle valve including a seat portion in a front end side; a nozzle body including a seat surface on which the seat portion sits, and including an injection hole at a downstream side with respect to the seat surface; and an injection-hole extending member including: a pressure receiving portion that receives pressure in a combustion chamber of an engine; and a movable portion that moves in the injection hole in an axial direction of the injection hole in response to the pressure received by the pressure receiving portion, and that changes length of the injection hole.
    Type: Application
    Filed: May 11, 2012
    Publication date: April 2, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi
  • Patent number: 8962500
    Abstract: A molded article having both of sufficient strength and peel resistance, especially a heat insulating material for a high temperature furnace, is provided. A carbon fiber-containing stacked molded article 1 comprises a substrate 10 composed of first carbon fibers piled, and a woven fabric layer 20 located on at least one surface of the substrate 10, and composed of carbon fiber spun yarns 21 including second carbon fibers 22 having an average fiber diameter of 12 ?m or less, and third carbon fibers 23 having an average fiber diameter in excess of 12 ?m.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: February 24, 2015
    Assignee: Kureha Corporation
    Inventors: Yasushi Okada, Tatsuo Kobayashi, Naohiro Sonobe, Takashi Kameyama
  • Publication number: 20150014444
    Abstract: A fuel injection valve includes: a needle valve with a seat surface at a distal end; a nozzle body with a seat section on which the seat surface rests and with an injection opening disposed downstream of the seat section; and a swirl flow generating section with a spiral groove for causing fuel injected via the injection opening to swirl. The seat surface includes a first contact point. The first contact point contacts a second contact point included in the seat section during valve closing. A line segment that is drawn by connecting the first contact point and the second contact point during valve opening intersects a virtual straight line passing a bottom of a first groove section that appears the most downstream side of a cross section of the swirl flow generating portion in a plane including a central axis of the needle valve and a bottom of a second groove section that appears one step upstream side of the first groove portion.
    Type: Application
    Filed: February 15, 2012
    Publication date: January 15, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi
  • Patent number: 8827187
    Abstract: A fuel injection valve includes: a nozzle body provided with an injection hole at a tip portion; a needle that is located slidably in the nozzle body and includes a seat portion seated on a seat position in the nozzle body; and an air bubble generation means generating air bubbles in a fuel flowing through the nozzle body, and when a curvature radius is R, a length of a curve is L and a constant is a, an inner peripheral shape of the injection hole includes a curving part passing through a region surrounded by a clothoid curve which is expressed by R×L=a2 and of which the constant a is 0.95 and an clothoid curve of which the constant a is 1.05 or a region surrounded by approximate curves of the clothoid curves at a cross-section surface along a direction of axis of the injection hole.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tatsuo Kobayashi
  • Patent number: 8708256
    Abstract: A fuel injection valve 30 includes: a nozzle body 31 provided with a jet hole 32 at an end portion thereof; and a needle 33 slidably arranged within the nozzle body 31, defining a fuel introduction path 34 between the needle 33 and the nozzle body 31, and provided with a seat portion 33a seated on a seated position 31a within the nozzle body 31. The fuel injection valve 30 includes: a rotational flow generation portion 36 formed in an upstream side of the seat portion 33a of the needle 33, and provided with a spiral groove 36a giving a rotational component to a fuel introduced from the fuel introduction path 34; an air introduction path 37 formed inside the needle; and a rotation stable chamber 45 formed at the end portion of the nozzle body 31, the fuel that has passed through the rotational flow generation portion 36 and the air that has passed through the air introduction path 37 being introduced into the rotational stable chamber 45.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Tatsuo Kobayashi
  • Publication number: 20140033810
    Abstract: Test liquid (3) including thermosetting resin is injected from an injection valve (2). Light (L) is irradiated to a spray (6) of the test liquid (3) injected from the injection valve (2) as a treatment for producing a hardening effect to the thermosetting resin. Liquid drops in the spray (6) are hardened and collected as particles. Spray characteristics such as a particle size distribution of the injection valve or the like are analyzed by using the collected particles.
    Type: Application
    Filed: April 26, 2011
    Publication date: February 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Sachio Mori, Tatsuo Kobayashi
  • Publication number: 20140014069
    Abstract: A fuel injection device is equipped with a fuel injection valve that is mounted in an engine body and injects fuel containing air bubbles, and void fraction adjustment means that changes a void fraction of the fuel that is to be injected from the fuel injection valve. The void ratio adjustment means increases the fuel pressure of the fuel to be injected from the fuel injection valve when an increase of the void fraction is requested. The void fraction adjustment means adjusts the void fraction of the fuel by changing temperature of the fuel to be injected from the fuel injection valve. By appropriately controlling the void fraction, both fuel atomization and securement of the net amount of fuel can be achieved.
    Type: Application
    Filed: March 31, 2011
    Publication date: January 16, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Motonari Yarino, Tatsuo Kobayashi
  • Publication number: 20140007661
    Abstract: The present invention is a mist testing device having a freezing chamber 30 (a mist-freeze unit) that freezes a mist particle injected from a injection valve 12, a tray 40 (a frozen-mist-hold unit) that holds a frozen mist particle 42 frozen by the freezing chamber 30, and an analyze unit 86 that analyzes the frozen mist particle 42 held by the tray 40.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 9, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tatsuo Kobayashi