Patents by Inventor Yasushi Nakamura

Yasushi Nakamura 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: 20220139645
    Abstract: An input device comprises an operation key arranged in an opening of a panel; and a light source and a push button switch each arranged in a position opposite to the opening on a board, wherein the operation key includes: a key top having a pressing part extending toward the push button switch, wherein the pressing part is arranged in a position separated from a center position in planar view of the key top on a line that is parallel to a line connecting connection parts of the key top, which are connected with one pair out of one or more pairs of arms, and passes through the center position, and wherein the push button switch is arranged in a position on the board opposite to an arrangement position of the pressing part,
    Type: Application
    Filed: October 20, 2021
    Publication date: May 5, 2022
    Inventor: YASUSHI NAKAMURA
  • Publication number: 20220048290
    Abstract: A liquid coating apparatus includes a liquid chamber, a diaphragm deformable to change a volume of the liquid chamber, a piezoelectric element that deforms the diaphragm in a thickness direction, a pressurized casing bottom-wall portion between the piezoelectric element and the diaphragm to support the piezoelectric element from a diaphragm side, a fixed casing bottom wall portion that supports an end of the piezoelectric element on a side opposite to the diaphragm, a plunger that extends through the pressurized casing bottom-wall portion and transmits expansion and contraction of the piezoelectric element to the diaphragm, and a coil spring that is between the piezoelectric element and the pressurized casing bottom-wall portion and is supported by the first support portion to apply a compressive force to the piezoelectric element.
    Type: Application
    Filed: August 28, 2019
    Publication date: February 17, 2022
    Inventors: Kenji MAEDA, Masaji NAKATANI, Akira ISHITANI, Yasushi NAKAMURA, Akihiro NISHIMURA
  • Publication number: 20220032335
    Abstract: A liquid coating apparatus includes a liquid storage assembly to store a liquid, a pressure sensor to detect a remaining amount of liquid in the liquid storage assembly, a discharge assembly to discharge the liquid in the liquid storage assembly to an outside, a negative pressure pump to generate a negative pressure lower than an atmospheric pressure, a negative pressure adjusting container with an internal pressure adjusted to a predetermined negative pressure by the negative pressure pump, a pressure adjustment controller to control drive of the negative pressure pump based on a detection result of the pressure sensor, and a pressure switch to adjust pressure in the liquid storage assembly to the predetermined negative pressure in the negative pressure adjusting container.
    Type: Application
    Filed: August 28, 2019
    Publication date: February 3, 2022
    Inventors: Pengtuan LI, Masaji NAKATANI, Akira ISHITANI, Yasushi NAKAMURA, Akihiro NISHIMURA
  • Patent number: 11070163
    Abstract: An amplitude of current ripples on a primary side of a power supply device that uses a plurality of transformers is reduced. A driving power supply device (7) that supplies electric power to a plurality of drive circuits (2) that individually drive switching elements (3) of an inverter (10) includes a plurality of transformers (L) having secondary-side coils (Ls) which are individually connected to the respective corresponding drive circuits (2); a plurality of transformer driving units (5) each including a driving switching element (M) that controls supply of electric power to a primary-side coil (Lp); and a power supply control device (6) that provides transformer drive signals (MG) for driving the transformer driving units (5). The power supply control device (6) drives the transformer driving units (5) by transformer drive signals (MG) having different phases.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 20, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Yasushi Nakamura, Keita Mutsuura, Yoshinobu Ito, Shota Sekiguchi
  • Patent number: 10873796
    Abstract: An image forming apparatus has a speaker that is stored inside a housing and includes an attachment guide to which the speaker is attached on a housing front surface. The attachment guide has at least one angle deciding portion which inclines a front surface of the speaker relative to the housing front surface.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 22, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Noriaki Taguchi, Yasushi Nakamura, Shinichi Takeda, Hiroki Kanemitsu
  • Patent number: 10845643
    Abstract: An image forming apparatus includes a status display part. The status display part is provided on a rear side of a touch panel display within the range including the lateral width of an operation unit. The status display part includes LEDs as a light source and a light emitter that transmits light from the LEDs to emit the light to the outside. A filter includes a first surface and a second surface that have different angles in an up-down direction.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 24, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Yasushi Nakamura
  • Publication number: 20200220489
    Abstract: An amplitude of current ripples on a primary side of a power supply device that uses a plurality of transformers is reduced. A driving power supply device (7) that supplies electric power to a plurality of drive circuits (2) that individually drive switching elements (3) of an inverter (10) includes a plurality of transformers (L) having secondary-side coils (Ls) which are individually connected to the respective corresponding drive circuits (2); a plurality of transformer driving units (5) each including a driving switching element (M) that controls supply of electric power to a primary-side coil (Lp); and a power supply control device (6) that provides transformer drive signals (MG) for driving the transformer driving units (5). The power supply control device (6) drives the transformer driving units (5) by transformer drive signals (MG) having different phases.
    Type: Application
    Filed: September 20, 2018
    Publication date: July 9, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Yasushi NAKAMURA, Keita MUTSUURA, Yoshinobu ITO, Shota SEKIGUCHI
  • Publication number: 20200124916
    Abstract: An image forming apparatus includes a status display part. The status display part is provided on a rear side of a touch panel display within the range including the lateral width of an operation unit. The status display part includes LEDs as a light source and a light emitter that transmits light from the LEDs to emit the light to the outside. A filter includes a first surface and a second surface that have different angles in an up-down direction.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 23, 2020
    Inventor: YASUSHI NAKAMURA
  • Patent number: 10615682
    Abstract: An electrically driven vehicle inverter device includes a smoothing capacitor, a discharge resistor, a discharge resistor and first and second discharge switching elements connected in series between both ends of the smoothing capacitor, and a clamp circuit provided for at least one of the first and second discharge switching elements. The clamp circuit includes a reverse flow prevention element and a constant voltage generation element that causes a constant voltage drop when a voltage across the constant voltage generation element exceeds a value determined in advance, for example.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 7, 2020
    Assignee: AISIN AW CO., LTD.
    Inventors: Yasushi Nakamura, Tomoya Hirano
  • Patent number: 10612498
    Abstract: There is provided an intake manifold of a multicylinder engine capable of facilitating homogenization of concentration distribution of EGR gas in intake air and distribution of EGR gas into respective cylinders.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 7, 2020
    Assignee: KUBOTA Corporation
    Inventors: Mutsuhisa Ishihara, Yasushi Nakamura
  • Publication number: 20200036842
    Abstract: An image forming apparatus includes an image reading portion, and an operation unit having at least a touch panel display is provided in a front side of the image reading portion. A housing of the image reading portion has a housing projection portion that is projected frontward as compared with a front surface of a document pressing cover, and a power key that is a hardware key is provided on an upper surface of the housing projection portion in a back side as compared with the touch panel display and within a range of a breadth of the operation unit. Accordingly, it is possible to prevent the power key from being operated carelessly, and it becomes easy to recognize a position of the power key.
    Type: Application
    Filed: October 5, 2019
    Publication date: January 30, 2020
    Inventors: Yasushi NAKAMURA, Osamu KAWATA
  • Patent number: 10483967
    Abstract: A switching element driving circuit that includes a push-pull buffer circuit driving a switching element to be driven, the push-pull buffer circuit amplifying electrical power of a switching control signal and transmitting the amplified switching control signal to a control terminal of the switching element to be driven; a compensation resistor that connects the input to the output; and an input-side pull-down resistor that connects the input to a negative polarity side of the switching element to be driven.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: November 19, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Yuji Takakura, Yasushi Nakamura
  • Patent number: 10469080
    Abstract: An operation unit comprises a touch panel display, a home key and a power saving key. The power saving key includes an indication portion, and a first indication portion out of the indication portion has light permeability, and a color of its surface is a dark color, and a second indication portion has no light permeability or has it hardly, which is constituted by a double-layered print. In a surface side of this second indication portion, a figure indicative of a power saving key is printed in silver ink, and in a rear side thereof, a figure indicative of the power saving key is printed in black ink. In a normal state, when a backlight is lit, a surface of the first indication portion is bright, and a surface of the second indication portion is darker than the surface of the first indication portion.
    Type: Grant
    Filed: February 16, 2019
    Date of Patent: November 5, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Nakamura, Osamu Kawata
  • Patent number: 10469677
    Abstract: An image forming apparatus comprises an image reading portion, and an operation unit having at least a touch panel display is provided in a front side of the image reading portion. A housing of the image reading portion has a housing projection portion that is projected frontward as compared with a front surface of a document pressing cover, and a power key that is a hardware key is provided on an upper surface of the housing projection portion in a back side as compared with the touch panel display and within a range of a breadth of the operation unit. Accordingly, it is possible to prevent the power key from being operated carelessly, and it becomes easy to recognize a position of the power key.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 5, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasushi Nakamura, Osamu Kawata
  • Publication number: 20190326904
    Abstract: A switching element driving circuit that includes a push-pull buffer circuit driving a switching element to be driven, the push-pull buffer circuit amplifying electrical power of a switching control signal and transmitting the amplified switching control signal to a control terminal of the switching element to be driven; a compensation resistor that connects the input to the output; and an input-side pull-down resistor that connects the input to a negative polarity side of the switching element to be driven.
    Type: Application
    Filed: July 26, 2017
    Publication date: October 24, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Yuji TAKAKURA, Yasushi NAKAMURA
  • Publication number: 20190235673
    Abstract: A touch key of an operation console includes a circuit board (310) having a light source (312, 314), a light transmitting portion (322) transmitting light, a non-transparent light shielding portion (324) and a semi-transparent operation panel (300) covering upper surfaces of the light transmitting portion and the light shielding portion. The light transmitting portion accommodates the light source. The surfaces of light transmitting portion and light shielding portion in contact with each other are tightly sealed, and the circuit board (310) and the light shielding portion (324) cover the light transmitting portion (323) such that the light is emitted only from the surface in contact with the operation panel (300). Thus, leakage of light from around a figure indicating a touch key can be prevented, and the operation console comes to have a high-class look.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Yasushi NAKAMURA, Hidenobu MANDAI, Kazuhiro MATSUYAMA, Hiroyuki NAGAO, Kazuhisa YONEDA
  • Publication number: 20190181861
    Abstract: An operation unit comprises a touch panel display, a home key and a power saving key. The power saving key includes an indication portion, and a first indication portion out of the indication portion has light permeability, and a color of its surface is a dark color, and a second indication portion has no light permeability or has it hardly, which is constituted by a double-layered print. In a surface side of this second indication portion, a figure indicative of a power saving key is printed in silver ink, and in a rear side thereof, a figure indicative of the power saving key is printed in black ink. In a normal state, when a backlight is lit, a surface of the first indication portion is bright, and a surface of the second indication portion is darker than the surface of the first indication portion.
    Type: Application
    Filed: February 16, 2019
    Publication date: June 13, 2019
    Inventors: Yasushi NAKAMURA, Osamu KAWATA
  • Publication number: 20190166416
    Abstract: An image forming apparatus has a speaker that is stored inside a housing and includes an attachment guide to which the speaker is attached on a housing front surface. The attachment guide has at least one angle deciding portion which inclines a front surface of the speaker relative to the housing front surface.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: NORIAKI TAGUCHI, YASUSHI NAKAMURA, SHINICHI TAKEDA, HIROKI KANEMITSU
  • Patent number: 10298220
    Abstract: A switching element drive circuit that drives a main switching element by providing a control terminal of the main switching element with a drive signal that has asymmetric positive and negative potentials with respect to a reference potential, the main switching element including a ground terminal, which is a source terminal or an emitter terminal, and to which the reference potential is connected.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: May 21, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Yasushi Nakamura, Yuji Takakura
  • Patent number: 10289257
    Abstract: A touch key of an operation console includes a circuit board (310) having a light source (312, 314), a light transmitting portion (322) transmitting light, a non-transparent light shielding portion (324) and a semi-transparent operation panel (300) covering upper surfaces of the light transmitting portion and the light shielding portion. The light transmitting portion accommodates the light source. The surfaces of light transmitting portion and light shielding portion in contact with each other are tightly sealed, and the circuit board (310) and the light shielding portion (324) cover the light transmitting portion (322) such that the light is emitted only from the surface in contact with the operation panel (300). Thus, leakage of light from around a figure indicating a touch key can be prevented, and the operation console comes to have a high-class look.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 14, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasushi Nakamura, Hidenobu Mandai, Kazuhiro Matsuyama, Hiroyuki Nagao, Kazuhisa Yoneda