Patents by Inventor Yuji Ikeda

Yuji Ikeda 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: 10161369
    Abstract: The object is to provide an injector with a built-in ignition device that can achieve downsize of device as a whole without changing significantly the structure of a fuel injection device. The injector with the built-in ignition device comprises an ignition device 3 and a fuel injection device 2. In the ignition device 3, an electromagnetic wave oscillated from an electromagnetic wave oscillator MW is boosted by a booster that is constituted by a resonance structure, a potential difference between a ground electrode 51 and a discharge electrode 31 is increased, and a discharge is caused. In the fuel injection device 2, a valve body part of a nozzle needle 24 is moved toward or away from a valve seat (orifis) 23a, and thereby, the fuel injection control is performed.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: December 25, 2018
    Assignee: IMAGINEERING, INC.
    Inventors: Yuji Ikeda, Seiji Kanbara
  • Publication number: 20180361882
    Abstract: An automobile seat includes a seat main body having a seat cushion frame; a seat supporting member; a link mechanism which allows the seat main body to shift between a first seat position and a second seat position corresponding to a forward-leaning posture; and a seat lock mechanism capable of being switched between a seat-locked state in which the seat main body is restrained at the first seat position and a lock-released state. The seat cushion frame is supported in a manner that a position thereof backward of the front link is suspended by the seat supporting member via the rear link. At the first seat position, a free-end supporting point of the rear link is positioned backward of a first vertical line passing a fixed-end supporting point of the rear link, and at the second seat position, the free-end supporting point is positioned forward the first vertical line.
    Type: Application
    Filed: December 5, 2016
    Publication date: December 20, 2018
    Inventors: Yuji Ikeda, Takeshi Momose
  • Publication number: 20180368215
    Abstract: To heat an object locally by automatically recognizing a shape of the object and emitting an electromagnetic wave based on the shape without enlarging a device size. An electromagnetic wave heating system comprises a heat chamber having a wall surface, in which an object is placed to be heated, a flat antenna arranged on the wall surface of the heat chamber and configured to emit the electromagnetic wave so as to heat the object inside the heat chamber, and a controller configured to control a movement of the flat antenna. The flat antenna comprises a plurality of antennas arranged in an array manner, and the controller detects a shape or a temperature distribution of the object based on a reflected power that is generated when the electromagnetic wave is emitted from the plurality of antennas, and determines a size of microwave supplied into each of the plurality of antennas based on a detection result thereof.
    Type: Application
    Filed: August 1, 2016
    Publication date: December 20, 2018
    Inventors: Yuji IKEDA, Seiji KANBARA, Minoru MAKITA, Yoshikazu SATOU, Kenichirou MITANI
  • Patent number: 10151291
    Abstract: To improve a propagation speed of a flame by effectively utilizing energy of the electromagnetic wave in the combustion chamber in an internal combustion engine that promotes combustion of fuel air mixture in a combustion chamber by means of an electromagnetic wave. The internal combustion engine includes, in addition to an internal combustion engine main body and an ignition device, an electromagnetic wave emission device and a control device. The electromagnetic wave emission device emits an electromagnetic wave to the combustion chamber while the flame is being propagated after ignition of the fuel air mixture. The control device controls a frequency of the electromagnetic wave emitted to the combustion chamber in view of a resonant frequency of the combustion chamber in accordance with an operation condition of the internal combustion engine main body or a propagation condition of the flame.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: December 11, 2018
    Assignee: IMAGINEERING, INC.
    Inventor: Yuji Ikeda
  • Publication number: 20180348664
    Abstract: A remaining powder amount detection device includes: a powder moving portion configured to change a distribution of powder in an inner space of a powder container containing the powder; a drive unit configured to drive the powder moving portion; a change value detector configured to detect a change value indicating a positional change of the powder container; and a remaining powder amount detector configured to detect a remaining amount of the powder contained in the powder container, based on the change value. The drive unit is configured to drive the powder moving portion so as to move the powder to near the change value detector. The remaining powder amount detector is configured to detect the remaining amount based on the change value in a state where the powder is moved to near the change value detector.
    Type: Application
    Filed: May 24, 2018
    Publication date: December 6, 2018
    Inventors: Hiroshi OKAMURA, Masaki TSUGAWA, Yuji IKEDA, Natsuko ISHIZUKA, Hayato FUJITA, Yohei KUSHIDA, Keita MAEJIMA
  • Publication number: 20180339553
    Abstract: Disclosed are a tire fiber having high adhesion to other members, a rubber/fiber composite having improved adhesion between rubber and fiber, and a tire having high hydraulic durability. The tire fiber comprises a polyethylene-2,5-furandicarboxylate (PEF) raw yarn, wherein the PEF raw yarn comprises as a raw material PEF having a terminal carboxylic acid amount of 1 to 100 mmol/kg.
    Type: Application
    Filed: September 7, 2016
    Publication date: November 29, 2018
    Applicants: BRIDGESTONE CORPORATION, SYNVINA C.V.
    Inventors: Yuji IKEDA, Kenichi SUGIMOTO, Matheus Adrianus DAM
  • Patent number: 10132286
    Abstract: The ignition system has an electromagnetic wave oscillator which oscillates electromagnetic waves, a control device that controls the electromagnetic wave oscillator, a plasma generator which integrates a booster circuit containing a resonant circuit capacitive coupled with the electromagnetic wave oscillator, and a discharge electrode which discharges a high voltage generated by the booster circuit. The plasma generator includes a plurality of discharge electrodes arranged so as to be exposed within the combustion chamber of the internal combustion engine.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: November 20, 2018
    Assignee: IMAGINEERING, INC.
    Inventors: Yuji Ikeda, Minoru Makita
  • Publication number: 20180321074
    Abstract: A water content measuring device measures water content of an object to be measured. The water content measuring device includes two plate members that are disposed facing each other, a current generating unit, a measuring unit, and an arithmetic processing unit. The current generating unit generates current supplied between the two plate members. The measuring unit measures electrostatic capacitance generated by the current supplied between the two plate members. The arithmetic processing unit is configured to convert the electrostatic capacitance measured by the measuring unit to water content. Two plate members each have a shape or are disposed such that at least two points on a leading edge of the object enter between the two plate members at different timings in a direction perpendicular to a passing direction in which the object passes through the two plate members.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 8, 2018
    Inventors: Yohei KUSHIDA, Keita Maejima, Hiroshi Okamura, Natsuko Ishizuka, Hayato Fujita, Masaki Tsugawa, Yuji Ikeda
  • Publication number: 20180324905
    Abstract: To realize a reduction in size of an electromagnetic wave heating system that utilizes water vapor. The electromagnetic wave heating system comprises a heat chamber having a first wall surface and a second wall surface different from the first wall surface, in which an object is placed to be heated, a flat antenna arranged on the first wall surface of the heat chamber and configured to emit an electromagnetic wave so as to heat an object inside the heating chamber, a discharger arranged on the second wall surface and configured to generate a discharge plasma by occurring a high voltage through a resonation structure of the electromagnetic wave, and an oscillator formed by a semiconductor element and configured to output the electromagnetic wave, and it is configured that the electromagnetic wave outputted from the oscillator is supplied into the flat antenna and the discharger.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 8, 2018
    Inventors: Yuji IKEDA, Seiji KANBARA, Yoshikazu SATOU
  • Publication number: 20180313317
    Abstract: An erosion of an electrode is prevented in a spark plug that performs an ignition by use of a spark discharge and an electromagnetic wave. The spark plug that a pulse voltage for a spark discharge and an electromagnetic wave supplied into the spark discharge as an energy are applied to a center electrode, the spark plug comprises the center electrode, an insulator including an axis hole into which the center electrode is engaged, a ground electrode configured to form a space between the ground electrode and the center electrode in which the spark discharge is generated, and a cylindrical conductor that is arranged at an outer circumference of the insulator, and an annular member is formed at an inner circumference of the cylindrical conductor and at a position where a distance from a distal end surface of the cylindrical conductor is within a range between ? wavelength and ΒΌ wavelength of the electromagnetic wave.
    Type: Application
    Filed: October 26, 2016
    Publication date: November 1, 2018
    Inventors: Yuji IKEDA, Seiji KANBARA, Atsushi NISHIYAMA, Keisuke TAKEMOTO, Shoushi WATANABE
  • Publication number: 20180298873
    Abstract: An igniter that has a large ignition power and an electromagnetic wave resonance structure with a small reflected power is provided.
    Type: Application
    Filed: October 17, 2016
    Publication date: October 18, 2018
    Applicant: IMAGINEERING, Inc.
    Inventors: Yuji Ikeda, Minoru Makita
  • Publication number: 20180266382
    Abstract: An ignition system improves an air-fuel-ratio, i.e., good mileage and lean burn without changing a gasoline engine structure significantly. The ignition system comprises an electromagnetic wave generator including a first output part and a second output part configured to output an electromagnetic wave, a discharge device comprising a booster and a discharger provided at an output side of the booster, the booster having a resonance structure configured to boost an electromagnetic wave inputted from the first output part so as to cause a discharge from the discharger, and an electromagnetic wave emitter configured to emit an electromagnetic wave inputted from the second output part. The electromagnetic wave generator decreases an output power from the first output part, while the electromagnetic wave generator increases the output power from the second output part when an amount of a reflected wave from the discharge device exceeds a predetermined value.
    Type: Application
    Filed: December 28, 2015
    Publication date: September 20, 2018
    Inventors: Yuji IKEDA, Seiji KANBARA, Minoru MAKITA
  • Patent number: 10078053
    Abstract: The present invention aims at realizing a gas concentration estimation apparatus with versatility wherein the gas concentration estimation apparatus estimates concentration of a target component in an analyte gas by analyzing a light emitted from plasma of the analyte gas. The present invention is directed to a gas concentration estimation apparatus including: a plasma generation device that turns an analyte gas into a plasma state; and an analysis device that analyzes plasma light emitted from the plasma generated by the plasma generation device and estimates concentration of a target component in the analyte gas wherein the analysis device estimates the concentration of the target component based on luminescence intensity of a wavelength component corresponding to luminescence from a predetermined radical within the plasma light, and the predetermined radical is different in atomic structure from the target component and includes an atom or a molecule separated from the target component.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: September 18, 2018
    Assignee: IMAGINEERING, INC.
    Inventor: Yuji Ikeda
  • Patent number: 10077754
    Abstract: Provided is an ignition plug (15) that has an antenna (54) for emitting high-frequency EM waves to combustion chamber (20) of an internal combustion engine (10), wherein the propagation velocity of the flame is augmented using the high-frequency EM waves emitted from the antenna (54). The ignition plug (15) has an ignition plug body (30) and an antenna (54). The antenna (54) is located on the front-tip side surface of the cylindrical second conductive member (33) within the ignition plug body (30), which accommodates a rod-shaped first conductive member (31) and cylindrical insulation (32) surrounding the first conductive member (31).
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: September 18, 2018
    Assignee: IMAGINEERING, INC.
    Inventor: Yuji Ikeda
  • Publication number: 20180257434
    Abstract: Disclosed is a PEF fiber for tire which includes a polyethylene-2,5-furandicarboxylate (PEF) raw yarn, wherein the PEF raw yarn is obtained by continuously drawing, without recovering, an undrawn yarn obtained by melt-spinning of a PEF-containing resin composition, and wherein the PEF raw yarn has a storage modulus of 1,300 MPa or more.
    Type: Application
    Filed: September 7, 2016
    Publication date: September 13, 2018
    Applicants: BRIDGESTONE CORPORATION, SYNVINA C.V.
    Inventors: Yuji IKEDA, Kenichi SUGIMOTO, Hajime NAKAJIMA
  • Publication number: 20180258558
    Abstract: Disclosed is a method for producing a polyethylene-2,5-furandicarboxylate (PEF) raw yarn including a spinning/drawing process wherein an undrawn yarn, obtained by melt-spinning of a PEF-containing resin composition, is continuously drawn into a PEF raw yarn without being recovered and the PEF raw yarn is taken up, wherein the ratio of a rate (T) of taking up the PEF raw yarn to a rate (E) of extrusion of the resin composition into filaments during the melt-spinning (T/E) is 700 to 2,000.
    Type: Application
    Filed: September 7, 2016
    Publication date: September 13, 2018
    Applicants: BRIDGESTONE CORPORATION, SYNVINA C.V.
    Inventors: Yuji IKEDA, Kenichi SUGIMOTO, Hajime NAKAJIMA
  • Patent number: 10071387
    Abstract: A coat forming apparatus 100 includes a droplet supply unit 110 and an active species supply unit 120. The droplet supply unit 110 is adapted to spray or drop a droplet for coat forming toward an object 116. The active species supply unit 120 is adapted to supply an active species to be brought into contact with the droplet moving from the droplet supply unit 110 toward the object 116. The coating is formed on a surface of the object 116 by the droplet that has been brought into contact with the active species.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: September 11, 2018
    Assignee: IMAGINEERING, INC.
    Inventor: Yuji Ikeda
  • Publication number: 20180244109
    Abstract: Disclosed is a method for producing a polyethylene-2,5-furandicarboxylate (PEF) raw yarn which includes a drawing step wherein an undrawn yarn, obtained by melt-spinning of a PEF-containing resin composition, is drawn into a PEF raw yarn, wherein a draw ratio in the drawing step is greater than 6.0 times.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 30, 2018
    Applicants: BRIDGESTONE CORPORATION, SYNVINA C.V.
    Inventors: Yuji IKEDA, Kenichi SUGIMOTO, Hajime NAKAJIMA, Jesper Gabriel VAN BERKEL
  • Publication number: 20180239285
    Abstract: A thickness detector includes a rotator having different shape marks, disposed at different positions in a rotation direction; an opposing member disposed opposite the rotator; a detector to detect and output a displacement amount of the rotator or the opposing member in a sheet thickness direction; and a controller. The controller is configured to acquire first output values for one rotation from the detector, in a state without sheet; determine, based on a value output from the detector, whether one of the plurality of marks is detected in a state with the sheet held; acquire a predetermined number of second output values after one of the marks is detected; extract, from the first output values, values corresponding to the second output values, based on the value corresponding to the detected mark; and calculate a sheet thickness based on the second output values and the extracted first output values.
    Type: Application
    Filed: December 26, 2017
    Publication date: August 23, 2018
    Applicant: Ricoh Company, Ltd
    Inventors: Hayato Fujita, Keita Maejima, Hiroshi Okamura, Masaki Tsugawa, Yuji Ikeda, Yohei Kushida, Emiko Kawarasaki
  • Patent number: 10056736
    Abstract: An aim of the present invention is, in a plug for high frequency emission disposed at an end of a casing having an emission antenna, to suppress a high frequency noise emitted from the emission antenna. The present invention is directed to a plug for high frequency emission including a transmission line for transmitting an electromagnetic wave, an emission antenna for emitting the electromagnetic wave supplied via the transmission line, and a casing constituted by a cylindrical shaped conductor, provided with the emission antenna at one end of the casing, and accommodating therein the transmission line extending from the emission antenna toward the other end of the casing. Inside of the casing, a central conductor electrically connected to the emission antenna and an outer conductor spaced apart from and surrounding the central conductor are embedded in an insulator so as to collectively constitute the transmission line, and the outer conductor is disposed in and held in non-contact with the casing.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 21, 2018
    Assignee: IMAGINEERING, INC.
    Inventor: Yuji Ikeda