Patents by Inventor Atsushi Yamamoto

Atsushi Yamamoto 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).

  • POWER TRANSMITTING APPARATUS FOR CODE MODULATION AND POWER RECEIVING APPARATUS FOR CODE DEMODULATION
    Publication number: 20170133948
    Abstract: A power transmitting apparatus includes: a converter which converts an input power into an AC power with a predetermined frequency; and a first code modulator which code-modulates at least part of the AC power with a first modulation code to generate a first code-modulated power.
    Type: Application
    Filed: October 17, 2016
    Publication date: May 11, 2017
    Inventors: JUNICHI KANOU, MASAHIRO YAMAOKA, AKIRA MINEGISHI, ATSUSHI YAMAMOTO, KOHEI MASUDA
  • Power router apparatus for generating code-modulated powers
    Patent number: 9641188
    Abstract: A power router apparatus includes: a power divider that divides predetermined power into a plurality of divided powers including first divided power and second divided power; a first code modulator that code-modulates the first divided power with a first modulation code to generate first code-modulated power, which is alternating-current power; and a second code modulator that code-modulates the second divided power with a second modulation code to generate second code-modulated power, which is alternating-current power.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: May 2, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Atsushi Yamamoto, Shoichi Hara, Taiki Nishimoto, Kohei Masuda
  • POWER ROUTER APPARATUS FOR GENERATING CODE-MODULATED POWERS
    Publication number: 20170117913
    Abstract: A power router apparatus includes: a power divider that divides predetermined power into a plurality of divided powers including first divided power and second divided power; a first code modulator that code-modulates the first divided power with a first modulation code to generate first code-modulated power, which is alternating-current power; and a second code modulator that code-modulates the second divided power with a second modulation code to generate second code-modulated power, which is alternating-current power.
    Type: Application
    Filed: September 20, 2016
    Publication date: April 27, 2017
    Inventors: ATSUSHI YAMAMOTO, SHOICHI HARA, TAIKI NISHIMOTO, KOHEI MASUDA
  • Noncontact connector apparatus and system using inductive coupling between coils
    Patent number: 9620282
    Abstract: A power transfer system is provided with a transmission coil and a reception coil respectively provided along a first surface and a second surface that face each other proximal to each other. The transmission coil and reception coil are provided proximally to be electromagnetically coupled to each other. The winding wire of the transmission coil is wound on the first surface, and the winding wire of the reception coil is wound on the second surface. The power transfer system is provided with a magnetic body provided proximately so as to be electromagnetically coupled to the transmission coil and the reception coil to cover at least one part of a region in which at least the winding wires of the transmission coil and reception coil are present between the first surface and the second surface.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: April 11, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenichi Asanuma, Atsushi Yamamoto, Tsutomu Sakata
  • CONTACTLESS CONNECTOR SYSTEM TOLERANT OF POSITION DISPLACEMENT BETWEEN TRANSMITTER COIL AND RECEIVER COIL AND HAVING HIGH TRANSMISSION EFFICIENCY
    Publication number: 20170092420
    Abstract: A contactless connector apparatus is provided with a first coil closely opposed to a second coil so as to be electromagnetically coupled thereto. The first coil includes: an inner transmitter coil wound around an axis passing through its center; and an outer transmitter coil wound around the axis and outside the inner coil. One end of the outer transmitter coil is connected to one end of the inner transmitter coil such that, when a current flows through the transmitter coils, a direction of a loop current generated around the axis by a current flowing through the inner transmitter coil is opposite to that of a loop current generated around the axis by a current flowing through the outer transmitter coil. A self-inductance of the outer transmitter coil is larger than that of the inner transmitter coil.
    Type: Application
    Filed: December 9, 2016
    Publication date: March 30, 2017
    Inventors: Kenichi ASANUMA, Atsushi YAMAMOTO, Tsutomu SAKATA, Akio HIDAKA, Toshiaki KIKUI
  • Ceramic electronic component and method for producing ceramic electronic component
    Patent number: 9595377
    Abstract: A ceramic electronic component includes a ferrite material magnetic body part and a Cu conductive part, the ferrite containing 20 to 48% trivalent Fe in terms of Fe2O3 and divalent Ni. The ferrite can contain Mn so that it is less than 50% of the total of Fe and Mn in terms of Mn2O3 and Fe2O3. The magnetic and conductive parts are co-fired at a pressure not exceeding the equilibrium oxygen partial pressure of Cu—Cu2O thereby ensuring insulating performance and favorable electrical characteristics.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: March 14, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Akihiro Nakamura, Atsushi Yamamoto, Yuko Nomiya
  • Internal combustion engine
    Patent number: 9593612
    Abstract: The phenomenon of resonance in a catalyst converter due to a flow of an exhaust gas is reduced without causing problems with vehicle layout, problems with manufacturing (higher manufacturing cost), or adverse influences on other facets of performance. An internal combustion engine includes an internal combustion engine main body having a fuel chamber formed in an interior, and a catalyst converter arranged in an exhaust flow channel of the internal combustion engine main body and provided with a catalyst for purifying the exhaust gas. The exhaust flow channel, which is upstream of the catalyst of the catalyst converter, is provided with a protuberance for disturbing the flow of the exhaust gas in the exhaust flow channel to reduce pressure pulsations of the exhaust gas.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: March 14, 2017
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Hidehisa Takatsu, Atsushi Yamamoto, Jun Nakano, Shigeki Murakami
  • POWER TRANSMITTING DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM
    Publication number: 20170040843
    Abstract: A power transmitting device determines transmitting power P(t1) at a beginning of a first unit time, and transmitting power P(t2) at an end of the first unit time, stores a control parameter Q(t3) that determines a voltage of the transmitting power at a beginning of a second unit time, and a control parameter Q(t4) that determines a voltage of the transmitting power at an end of the second unit time, determines a power difference ?P=P(t2)?P(t1) and a difference ?Q=Q(t4)?Q(t3) in the control parameter Q, and, if the ?P is equal to or larger than a first threshold and an absolute value of the ?Q is equal to or larger than a second threshold, determines that there is a foreign object between a receiver resonator and a transmitter resonator and decreases the transmitting power output from an inverter circuit.
    Type: Application
    Filed: June 30, 2016
    Publication date: February 9, 2017
    Inventors: KENICHI ASANUMA, TSUTOMU SAKATA, ATSUSHI YAMAMOTO, HIROSHI KANNO
  • LIGHT-EMITTING DEVICE AND BACKLIGHT INCLUDING LIGHT-EMITTING DEVICE
    Publication number: 20170040301
    Abstract: The light-emitting device includes a first light-emitting element having an emission peak wavelength of 430 nm or more and less than 490 nm, a second light-emitting element having an emission peak wavelength of 490 nm or more and 570 nm or less, a support body at which the first light-emitting element and the second light-emitting element are disposed, and a light-transmissive member containing a red phosphor and covering the first light-emitting element and the second light-emitting element. A content density of the red phosphor in the light-transmissive member in a space between the first and second light-emitting elements is higher in a part below an upper surface of the second light-emitting element than in a part above the upper surface thereof.
    Type: Application
    Filed: August 1, 2016
    Publication date: February 9, 2017
    Applicant: NICHIA CORPORATION
    Inventors: Atsushi YAMAMOTO, Keiko ONO, Saiki YAMAMOTO, Tomokazu MARUYAMA, Takeshi MORIKAWA, Seitaro AKAGAWA
  • SOLID-STATE IMAGING DEVICE, METHOD OF MANUFACTURING SOLID-STATE IMAGING DEVICE, AND ELECTRONIC APPARATUS
    Publication number: 20170033140
    Abstract: A solid-state imaging device includes pixels each having a photoelectric conversion element for converting incident light to an electric signal, color filters associated with the pixels and having a plurality of color filter components, microlenses converging the incident light through the color filters to the photoelectric conversion elements, a light shielding film disposed between the color filter components of the color filters, and a nonplanarized adhesive film provided between the color filters and the light shielding film.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 2, 2017
    Inventors: Tomoharu Ogita, Atsushi Yamamoto, Keiji Tatani, Yoichi Ootsuka, Kiyotaka Tabuchi
  • FOREIGN OBJECT DETECTING DEVICE, WIRELESS POWER TRANSMITTING DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM
    Publication number: 20170033615
    Abstract: An object detecting device includes a coil array including coils, short-circuit switches connected in parallel with the coils, an oscillator circuit that outputs, to the coils, a voltage including an alternating current component, selection switches connected between the coils and the oscillator circuit, a detecting circuit that detects an object based on a change in a physical value such as voltage, and a control circuit that opens and closes the short-circuit switches and the selection switches. When a first selection switch is closed, a first short-circuit switch, which is connected to the first selection switch, is opened. The other selection switches are opened, and the other short-circuit switches are closed.
    Type: Application
    Filed: June 27, 2016
    Publication date: February 2, 2017
    Inventors: KENICHI ASANUMA, TSUTOMU SAKATA, ATSUSHI YAMAMOTO, HIROSHI KANNO
  • Ferrite ceramic composition, ceramic electronic component, and method for producing ceramic electronic component
    Patent number: 9558877
    Abstract: A coil conductor and a via electrode placed away from the coil conductor are embedded in a magnetic layer. The magnetic layer is sandwiched between a pair of non-magnetic layers. The coil conductor and the via electrode are formed from a conductive material containing Cu as its main constituent, and the magnetic layer is formed from Ni—Mn—Zn ferrite where the CuO molar content is 5 mol % or less, and (x, y) falls within the range of A (25, 1), B (47, 1), C (47, 7.5), D (45, 7.5), E (45, 10), F (35, 10), G (35, 7.5), and H (25, 7.5) when the molar content x of Fe2O3 and the molar content y of Mn2O3 are represented by (x, y). Thus, insulation properties can be ensured, favorable electrical characteristics can be achieved, and a ceramic electronic component is achieved which is able to be reduced in size.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: January 31, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshiko Okada, Atsushi Yamamoto, Akihiro Nakamura
  • LAMINATED COIL COMPONENT
    Publication number: 20170025217
    Abstract: A laminated coil component includes a magnetic body part made of a Ni—Zn-based ferrite material and a coil conductor containing Cu as a main component, which is wound into a coil shape, and the coil conductor is embedded in the magnetic body part to form a component base. The component base is divided into a first region near the coil conductor and a second region other than the first region. The grain size ratio of the average crystal grain size of the magnetic body part in the first region to the average crystal grain size of the magnetic body part in the second region is 0.85 or less. The molar content of CuO in the ferrite raw material is set to 6 mol % or less, and firing is performed in a reducing atmosphere in which the oxygen partial pressure is an equilibrium oxygen partial pressure of Cu—Cu2O or less.
    Type: Application
    Filed: October 6, 2016
    Publication date: January 26, 2017
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Atsushi YAMAMOTO, Akihiro NAKAMURA, Yuko FUJITA, Tomoyuki ANKYU, Osamu NAITO
  • Contactless connector system tolerant of position displacement between transmitter coil and receiver coil and having high transmission efficiency
    Patent number: 9548621
    Abstract: A contactless connector apparatus is provided with a first coil closely opposed to a second coil so as to be electromagnetically coupled thereto. The first coil includes: an inner transmitter coil wound around an axis passing through its center; and an outer transmitter coil wound around the axis and outside the inner coil. One end of the outer transmitter coil is connected to one end of the inner transmitter coil such that, when a current flows through the transmitter coils, a direction of a loop current generated around the axis by a current flowing through the inner transmitter coil is opposite to that of a loop current generated around the axis by a current flowing through the outer transmitter coil. A self-inductance of the outer transmitter coil is larger than that of the inner transmitter coil.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: January 17, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kenichi Asanuma, Atsushi Yamamoto, Tsutomu Sakata, Akio Hidaka, Toshiaki Kikui
  • Toner, developer using the toner, image forming apparatus
    Patent number: 9519235
    Abstract: A toner including at least a crystalline resin as a binder resin, wherein a tetrahydrofuran soluble content of the toner includes 5.0% or more as a peak area of a component having a molecular weight of 100,000 or greater in a molecular weight distribution measured by gel permeation chromatography, and the tetrahydrofuran soluble content of the toner has a weight-average molecular weight of 20,000 to 60,000.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: December 13, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Shingo Sakashita, Shinya Nakayama, Masahide Yamada, Atsushi Yamamoto, Hideyuki Santo, Yukiko Nakajima, Suzuka Amemori
  • Method of manufacturing image display device and method of selecting color filter
    Patent number: 9507200
    Abstract: A method of manufacturing an image display device which is configured to produce high luminance while maintaining color reproductivity and a method of efficiently selecting a combination of a light emitting device and a color filter.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 29, 2016
    Assignee: NICHIA CORPORATION
    Inventors: Atsushi Yamamoto, Takeshi Morikawa, Koji Kajikawa
  • Solid-state imaging device, method of manufacturing solid-state imaging device, and electronic apparatus
    Patent number: 9508767
    Abstract: A solid-state imaging device includes pixels each having a photoelectric conversion element for converting incident light to an electric signal, color filters associated with the pixels and having a plurality of color filter components, microlenses converging the incident light through the color filters to the photoelectric conversion elements, a light shielding film disposed between the color filter components of the color filters, and a nonplanarized adhesive film provided between the color filters and the light shielding film.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: November 29, 2016
    Assignee: Sony Corporation
    Inventors: Tomoharu Ogita, Atsushi Yamamoto, Keiji Tatani, Yoichi Ootsuka, Kiyotaka Tabuchi
  • FOREIGN OBJECT DETECTING DEVICE, WIRELESS POWER TRANSMITTING APPARATUS, AND WIRELESS POWER TRANSFER SYSTEM
    Publication number: 20160336759
    Abstract: A foreign object detecting device includes first, second, and third coils and a foreign object detecting circuit. The foreign object detecting circuit outputs a first detecting signal having a first predetermined waveform to a first terminal of the first coil and outputs a second detecting signal having a second predetermined waveform, which is an inverted form of the first predetermined waveform, to a fifth terminal of the third coil to cause a combined magnetic field extending over the first and third coils. The foreign object detecting circuit measures an amount of change of the impedance value of the first or third coil with respect to a change in the combined magnetic field in the case of the presence of a foreign object. The amount of change exceeds a predetermined value, the foreign object detecting circuit determines that there is a foreign object above the second coil.
    Type: Application
    Filed: March 10, 2016
    Publication date: November 17, 2016
    Inventors: ATSUSHI YAMAMOTO, HIROSHI KANNO
  • FOREIGN OBJECT DETECTING DEVICE, WIRELESS POWER TRANSMITTING APPARATUS, AND WIRELESS POWER TRANSFER SYSTEM
    Publication number: 20160336760
    Abstract: A foreign object detecting device includes first and second coils, the winding directions of which are the same, and a foreign object detecting circuit. The foreign object detecting circuit outputs a first detecting signal having a first predetermined waveform to a first terminal of the first coil and outputs a second detecting signal having a second predetermined waveform, which has the same polarity as the first predetermined waveform, to a third terminal of the second coil to cause magnetic fields generated from the first and second coils to repel each other. The foreign object detecting circuit measures an amount of change of the impedance value of the first or second coil which is caused by the presence of a foreign object. When the amount of change exceeds a predetermined value, the foreign object detecting circuit determines that there is a foreign object above the first or second coil.
    Type: Application
    Filed: March 11, 2016
    Publication date: November 17, 2016
    Inventors: ATSUSHI YAMAMOTO, HIROSHI KANNO
  • TONER, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS
    Publication number: 20160334726
    Abstract: A toner including at least a crystalline resin as a binder resin, wherein a tetrahydrofuran soluble content of the toner includes 5.0% or more as a peak area of a component having a molecular weight of 100,000 or greater in a molecular weight distribution measured by gel permeation chromatography, and the tetrahydrofuran soluble content of the toner has a weight-average molecular weight of 20,000 to 60,000.
    Type: Application
    Filed: July 26, 2016
    Publication date: November 17, 2016
    Inventors: Shingo SAKASHITA, Shinya NAKAYAMA, Masahide YAMADA, Atsushi YAMAMOTO, Hideyuki SANTO, Yukiko NAKAJIMA, Suzuka AMEMORI