Patents by Inventor Takeshi Aoki

Takeshi Aoki 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: 9139392
    Abstract: A medium transporting device includes a first roller that inverts a medium supplied from a processing section side, the processing section processing the medium; a second roller that is located closer to the processing section than the first roller, the second roller having a function of inverting the medium supplied from the processing section side and a function of applying a transporting force to the medium using an outer peripheral surface of the second roller that faces both a pre-inversion medium transporting pathway for transporting a medium that has not been inverted by the first roller and a post-inversion medium transporting pathway for transporting a medium that has been inverted by the first roller; a medium transporting pathway that causes the medium supplied from the processing section side to be inverted along the second roller and causes the medium thus inverted to be supplied to the processing section side.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: September 22, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Takeshi Aoki
  • Publication number: 20150258816
    Abstract: A recording apparatus includes a body, an operation panel provided on a front surface of the body, a feeding cassette that accommodates sheets, removably mounted with respect to the body from the front surface of the body, and is configured such that a part thereof is protruded from body in a state of being mounted on the body, a recording section that is disposed inside the body and performs printing by ejecting ink onto a sheet transported from the feeding cassette, a discharging tray that is disposed on the feeding cassette and supports the sheet after printing is completed, and a body-side cover section that is provided in the body and covers both side surfaces of the feeding cassette.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 17, 2015
    Inventors: Hiroyuki YODA, Masanori NAKATA, Takeshi AOKI, Toshikazu KOTAKA
  • Publication number: 20150255018
    Abstract: There is provided a display apparatus including a display panel where display elements connected to a scanning line and a signal line are arrayed in a two dimensional matrix, and a driving circuit unit configured to drive the display panel, the driving circuit unit including a gate driver configured to feed a scanning signal to the scanning line such that a back gate voltage of a field effect transistor configuring an output buffer for generating the scanning signal is capable of controlling. Also, there is provided an electronic device including the display apparatus.
    Type: Application
    Filed: February 19, 2015
    Publication date: September 10, 2015
    Inventors: Takeshi Aoki, Iwao Ushinohama
  • Publication number: 20150256177
    Abstract: A semiconductor device in which operation delay due to stop and restart of the supply of a power supply potential is suppressed is provided. Potentials corresponding to data held in first and second nodes while the supply of a power supply potential is continued are backed up in third and fourth nodes while the supply of the power supply potential is stopped. After the supply of the power supply potential is restarted, data are restored to the first and second nodes by utilizing a change in channel resistance of a transistor whose gate is electrically connected to the third or fourth node. Note that shoot-through current is suppressed at the time of data restoration by electrically disconnecting the power supply potential and the first or second node from each other.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 10, 2015
    Inventors: Munehiro KOZUMA, Takayuki IKEDA, Yoshiyuki KUROKAWA, Takeshi AOKI, Takashi NAKAGAWA
  • Patent number: 9131171
    Abstract: Provided is an image sensor having a pixel includes a photoelectric conversion element; a capacitor which is connected between the photoelectric conversion element; a reset circuit which resets a potential of a node between the photoelectric conversion element and the capacitor; an amplifier circuit which outputs a signal corresponding to the potential of the node; and a switch which controls electrical conduction between the amplifier circuit and a vertical signal line. When the node is brought into an electrically floating state, the potential of the optical signal is stored in the node in a state of being inverted. When an optical signal is detected while the potential is stored in the node, the potential of the node increases in accordance with an output potential of the photoelectric conversion element, and thus the potential of the node corresponds to a difference in potential between the optical signals in different light-receiving periods.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 8, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Aoki, Takayuki Ikeda, Yurika Sato, Koji Dairiki
  • Publication number: 20150249439
    Abstract: A semiconductor device that suppresses operation delay due to stop and restart of the supply of a power supply potential is provided. A potential corresponding to data held while power supply potential is continuously supplied is backed up in a node connected to a capacitor while the supply of the power supply potential is stopped. Then, by utilizing change in resistance of a channel in a transistor whose gate is the node, the data is restored with restart of the supply of the power supply potential. Note that by supplying a high potential to the node before the data back up, high-speed and accurate data back up is possible.
    Type: Application
    Filed: February 25, 2015
    Publication date: September 3, 2015
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Munehiro Kozuma, Takayuki IKEDA, Yoshiyuki KUROKAWA, Takeshi AOKI, Takashi NAKAGAWA
  • Publication number: 20150249800
    Abstract: This invention has for purpose to provide a photosensor that is small in size and can obtain high-contrast image data and to provide a semiconductor device including the photosensor. In the photosensor including a light-receiving element, a transistor serving as a switching element, and a charge retention node electrically connected to the light-receiving element through the transistor, the reduction in charge held in the charge retention node is suppressed by extending the fall time of the input waveform of a driving pulse supplied to the transistor to turn off the transistor.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 3, 2015
    Inventors: Takeshi AOKI, Hikaru TAMURA
  • Patent number: 9114943
    Abstract: In a medium transport device, when a unit body is inserted into an installation unit and an opening and closing body is closed with respect to the device main body, the unit body is positioned in a position that configures a portion of a transport pathway as a result of the opening and closing body pressing first target pressing units that are provided in the unit body.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: August 25, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Aoki, Katsumi Okamoto
  • Patent number: 9111836
    Abstract: A semiconductor device includes a photodiode, a first transistor, a second transistor, and a third transistor. The second transistor and the third transistor have a function of retaining a charge accumulated in a gate of the first transistor. In a period during which the second transistor and the third transistor are off, a voltage level of a voltage applied to a gate of the second transistor is set to be lower than a voltage level of a source of the second transistor and a voltage level of a drain of the second transistor, and a voltage level of a voltage applied to a gate of the third transistor is set to be lower than a voltage level of a source of the third transistor and a voltage level of a drain of the third transistor.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: August 18, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda, Munehiro Kozuma, Takeshi Aoki
  • Publication number: 20150228324
    Abstract: A low-power semiconductor device is provided. A memory device applicable to a multi-context programmable logic device (PLD) includes at least memory cells the number of which is the same as the number of contexts. Output nodes of the memory cells are electrically connected to an output node of a configuration memory through different path transistors. A circuit including a transistor and a capacitor makes a gate potential of the path transistor higher than a high-level potential. This prevents a decrease in the potential of the output node of the configuration memory due to the threshold voltage of the path transistor without an increase in power consumption.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 13, 2015
    Inventors: Takeshi AOKI, Munehiro KOZUMA
  • Patent number: 9103724
    Abstract: This invention has for purpose to provide a photosensor that is small in size and can obtain high-contrast image data and to provide a semiconductor device including the photosensor. In the photosensor including a light-receiving element, a transistor serving as a switching element, and a charge retention node electrically connected to the light-receiving element through the transistor, the reduction in charge held in the charge retention node is suppressed by extending the fall time of the input waveform of a driving pulse supplied to the transistor to turn off the transistor.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 11, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Aoki, Hikaru Tamura
  • Publication number: 20150218332
    Abstract: An extruded foam sheet having a foam layer constituted of a base resin containing low density polyethylene as a major component thereof, wherein the foam sheet has an apparent density of 45 to 450 kg/m3, an average thickness of 0.03 mm or more and less than 0.3 mm and a dimensional change of ?5% to 0% in the extrusion direction when heated at 80° C. for 24 hours and wherein cell walls of the foam layer have an average thickness of 6 to 70 ?m. The foam sheet may be used as an interleaf sheet for glass plates.
    Type: Application
    Filed: August 1, 2013
    Publication date: August 6, 2015
    Applicant: JSP CORPORATION
    Inventors: Takashi Nishimoto, Takeshi Aoki
  • Publication number: 20150213846
    Abstract: To provide a semiconductor device having a novel configuration, in which a malfunction and power consumption are reduced. A data holding circuit which includes a flipflop including first and second latch circuits and a shadow register including a nonvolatile memory portion; and a control signal generation circuit which generates a first control signal supplied to the first latch circuit and a second control signal supplied to the second latch circuit are included. The shadow register is a circuit which controls data saving or data restoring between the first and second latch circuits on the basis of a saving control signal or a restore control signal. The control signal generation circuit is a circuit which generates the first and second control signals at L level in a period during which data is saved or restored, on the basis of a clock signal, the saving control signal, and the restore control signal.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 30, 2015
    Inventors: Takashi NAKAGAWA, Takayuki IKEDA, Yoshiyuki KUROKAWA, Munehiro KOZUMA, Takeshi AOKI
  • Patent number: 9085433
    Abstract: A medium transport device includes a restricting unit that is provided in a device main body, and that is coupled with an attaching and detaching operation of a unit body, which configures a portion of a transport pathway, to the device main body. The restricting unit changes between a first state that allows the cover to attain a closed state with respect to the device main body and a second state that restricts the cover from attaining a closed state with respect to the device main body.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 21, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Aoki, Katsumi Okamoto
  • Publication number: 20150188520
    Abstract: A semiconductor device that can operate normally with lower power consumption is provided. The semiconductor device includes a pair of first circuits which each include a first transistor and a second transistor capable of controlling the supply of a first signal to a gate of the first transistor, and a second circuit which is capable of generating a second signal which is to be supplied to a gate of the second transistor and which has a larger amplitude than the first signal. One of a source and a drain of one of the first transistors included in the pair of first circuits is electrically connected to one of a source and a drain of the other of the first transistors. The first signals supplied to the gates of the first transistors in the pair of first circuits have potentials with different logic levels.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 2, 2015
    Inventors: Takeshi Aoki, Munehiro Kozuma, Yoshiyuki Kurokawa
  • Publication number: 20150187652
    Abstract: A method for producing a composite wafer by using a forming wafer having a monocrystal layer, the method comprising: (a) forming, on the monocrystal layer of the forming wafer, a sacrificial layer and a semiconductor crystal layer sequentially; (b) causing a first front surface that is the front surface of a layer formed on the forming wafer to face a second front surface that is the front surface of the transfer target wafer or of a layer formed on the transfer target wafer and is to contact the first front surface, and bonding the forming wafer and the transfer target wafer; and (c) etching the sacrificial layer, and separating the forming wafer from the transfer target wafer in a state that the semiconductor crystal layer is left on the transfer target wafer, wherein the (a) to the (c) are repeated by using the forming wafer separated in the (c).
    Type: Application
    Filed: January 28, 2015
    Publication date: July 2, 2015
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Taketsugu YAMAMOTO, Takeshi AOKI, Tatsuro MAEDA, Eiko MIEDA, Toshiyuki KIKUCHI, Arito OGAWA
  • Publication number: 20150183607
    Abstract: A recording apparatus includes a apparatus main body, and a unit body that forms a medium transportation path, and is configured to be attachable and detachable with respect to the apparatus main body. The unit body includes a feeding roller that transports a medium, and a driven transportation unit that transmits the drive force of the drive transportation unit to the feeding roller. The unit body is displaceable between a first position at which the driven transmission unit is connected to the drive transmission unit and a second position at which the driven transmission unit is separated from the drive transmission unit. When a user pulls out the medium, the unit body retained at the first position moves from the first position to the second position.
    Type: Application
    Filed: March 4, 2015
    Publication date: July 2, 2015
    Inventors: Akinobu NAKAHATA, Kazuyoshi OHASHI, Takeshi AOKI
  • Patent number: 9065438
    Abstract: Data of a register in a programmable logic element is retained. A volatile storage circuit and a nonvolatile storage circuit are provided in a register of a programmable logic element whose function can be changed in response to a plurality of context signals. The nonvolatile storage circuit includes nonvolatile storage portions for storing data in the register. The number of nonvolatile storage portions corresponds to the number of context signals. With such a structure, the function can be changed each time context signals are switched and data in the register that is changed when the function is changed can be backed up to the nonvolatile storage portion in each function. In addition, the function can be changed each time context signals are switched and the data in the register that is backed up when the function is changed can be recovered to the volatile storage circuit.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: June 23, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Aoki, Yoshiyuki Kurokawa, Munehiro Kozuma, Takashi Nakagawa
  • Patent number: 9064574
    Abstract: To provide a semiconductor device in which power consumption can be reduced and operation delay due to a stop and a restart of supply of power supply voltage can be suppressed and a driving method thereof. A potential corresponding to data held in a period during which power supply voltage is continuously supplied is saved to a node connected to a capacitor before the supply of power supply voltage is stopped. By utilizing change of channel resistance of a transistor whose gate is the node, data is loaded when the supply of power supply voltage is restarted.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: June 23, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Aoki, Takayuki Ikeda, Yoshiyuki Kurokawa
  • Patent number: 9057337
    Abstract: An air-fuel ratio control system for an internal combustion engine has a perturbation control which oscillates the air-fuel ratio with a first frequency. A first difference signal is generated indicative of a difference between a present value and a first past value from an air-fuel ratio sensor detected at a timing of a first specific period which is set to reduce a specific frequency component corresponding to a specific frequency different from the first frequency. A first frequency component is extracted. A second difference signal is generated indicative of a difference between a present value and a second past value detected at a timing of a second specific period which is set to reduce the first frequency component. The specific frequency component is extracted. A failure of the control system is determined by a relationship between intensities of the first frequency component and the specific frequency component.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: June 16, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Tooru Sekiguchi, Atsuhiro Miyauchi, Takeshi Aoki, Michinori Tani, Takashi Yanagiura, Seiji Watanabe