Patents by Inventor Masashi Murakami

Masashi Murakami 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: 10819924
    Abstract: An electronic device including: a photosensitive layer that converts incident light into a signal charge; a first electrode that collects the signal charge; and a first carrier blocking layer between the photosensitive layer and the first electrode. The carrier blocking layer is configured to block a carrier a polarity of which is different from that of the signal charge. Under a first range of biases on the electronic device, the photosensitive layer is configured to generate photocurrent while illuminated. Under a second range of biases on the electronic device, the photosensitive layer is configured to generate lower photocurrent while illuminated compared to under the first range of biases.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: October 27, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuo Miyake, Masashi Murakami, Tokuhiko Tamaki, Yoshiaki Satou
  • Publication number: 20200321365
    Abstract: An imaging device includes: a photoelectric converter including first and second electrodes, and a photoelectric conversion layer located between the first electrode and the second electrode; a voltage supply circuit applying a bias voltage between the first electrode and the second electrode: an amplifier transistor including a gate electrically connected to the second electrode, the amplifier transistor configured to output a signal corresponding to a potential of the second electrode; and a detection circuit configured to detect a level of the signal from the amplifier transistor. The voltage supply circuit applies the bias voltage in a first voltage range when the level detected by the detection circuit is greater than or equal to a first threshold value, and applies the bias voltage in a second voltage range that is greater than the first voltage range when the level detected by the detection circuit is less than a second threshold value.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Masashi MURAKAMI, Kazuko NISHIMURA, Yasuo MIYAKE, Yasunori INOUE
  • Publication number: 20200304735
    Abstract: An imaging device includes a photoelectric converter that converts light into signal charge, a charge accumulation region that accumulates the signal charge, a first transistor having a gate connected to the charge accumulation region, and a common gate amplifier circuit that amplifies an output of the first transistor to output to the charge accumulation region. The common gate amplifier circuit includes a second transistor. One of a source and a drain of the second transistor is connected to one of a source and a drain of the first transistor, and the other of the source and the drain of the second transistor is connected to the charge accumulation region.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 24, 2020
    Inventors: YUTAKA ABE, KAZUKO NISHIMURA, MASASHI MURAKAMI
  • Patent number: 10784835
    Abstract: A vibration device including a vibrator, a circuit component, a relay substrate disposed between the vibrator and the circuit component, a package that accommodates the vibrator, the circuit component, and the relay substrate, a first metal bump that joins the circuit component to the package, a second metal bump that joins the relay substrate to the circuit component, and a third metal bump that joins the vibrator to the relay substrate.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 22, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryuta Nishizawa, Shiro Murakami, Shinya Aoki, Atsushi Matsuo, Masashi Shimura
  • Publication number: 20200295064
    Abstract: An imaging device having a semiconductor substrate that includes a first photoelectric converter, and a second photoelectric converter adjacent to the first photoelectric converter. The imaging device further includes a capacitive element one end of which is coupled to the first photoelectric converter, where the first capacitive element at least partly overlaps, in a plan view, with the second photoelectric converter.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Sanshiro Shishido, Masashi Murakami, Kazuko Nishimura
  • Patent number: 10770491
    Abstract: An imaging device includes a photoelectric converter that includes a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and the second electrode, a first transistor that has a gate connected to the first electrode, and a first capacitor and a switching element that are connected, in series, between the first electrode and either a voltage source or a ground.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: September 8, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masashi Murakami, Kazuko Nishimura, Yutaka Abe, Yoshiyuki Matsunaga, Yoshihiro Sato, Junji Hirase
  • Publication number: 20200263317
    Abstract: A method of manufacturing a group-III nitride crystal includes: a seed crystal preparation step of preparing a plurality of dot-shaped group-III nitrides on a substrate as a plurality of seed crystals for growth of a group-III nitride crystal; and a crystal growth step of bringing surfaces of the seed crystals into contact with a melt containing an alkali metal and at least one group-III element selected from gallium, aluminum, and indium in an atmosphere containing nitrogen and thereby reacting the group-III element with the nitrogen in the melt to grow the group-III nitride crystal.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 20, 2020
    Applicants: OSAKA UNIVERSITY, Panasonic Corporation
    Inventors: Yusuke MORI, Masayuki IMANISHI, Masashi YOSHIMURA, Kousuke MURAKAMI, Shinsuke KOMATSU, Masahiro TADA, Yoshio OKAYAMA
  • Publication number: 20200258933
    Abstract: An imaging device having a pixel including: a photoelectric converter that generates an electric signal through photoelectric conversion of incident light; a first transistor that has a gate coupled to the photoelectric converter and that amplifies the electric signal; and a second transistor that has a gate coupled to the photoelectric converter, one of a source and a drain of the second transistor being coupled to the photoelectric converter. The imaging device further includes a voltage supply circuit configured to supply two or more different voltages to the other of the source and the drain of the second transistor.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Kazuko NISHIMURA, Yutaka ABE, Masashi MURAKAMI, Yoshiyuki MATSUNAGA
  • Patent number: 10734421
    Abstract: An imaging device including: a photoelectric converter including first and second electrodes and a photoelectric conversion layer therebetween; a voltage supplier; an output circuit for outputting a signal corresponding to the potential of the second electrode; and a detector for detecting the signal level. The change rate of the conversion efficiency of the photoelectric converter with respect to a bias voltage applied between the electrodes when the bias voltage is in a first range is greater than that when the bias voltage is in a second range higher than the first range. The voltage supplier, when the detected level is a first threshold or higher, causes the potential difference between the electrodes to be a first difference, and, when the detected level is lower than a second threshold that is the first threshold or lower, causes the potential difference to be a second difference greater than the first difference.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 4, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masashi Murakami, Kazuko Nishimura, Yasuo Miyake, Yasunori Inoue
  • Patent number: 10730582
    Abstract: This brake pedal device includes an arm portion (21) pivotally supported on a vehicle body to be rotatable, and a pedal portion (22) provided at a distal end portion (21b) of the arm portion (21). The pedal portion (22) includes a first operation portion (31) configured to operate a brake (102), a first uneven portion (33) formed on at least a part of the first operation portion (31), a second operation portion (32) provided at a position different from the first operation portion (31), and a second uneven portion (34) formed on at least a part of the second operation portion (32).
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: August 4, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masashi Tada, Kyohei Kawai, Kohta Murakami, Mikio Uchiyama
  • Patent number: 10712041
    Abstract: A cooling fan automatic control system includes: a temperature sensor configured to measure a temperature of an object to be cooled; a plurality of current sensors configured to measure power consumption by each of a plurality of cooling fans; and a controller which, when a measured temperature that is a measured value obtained by the temperature sensor is higher than a target cooling temperature of the object to be cooled, controls rotational speeds of the plurality of cooling fans so as to minimize a total of measured current values of the plurality of cooling fans obtained by the plurality of current sensors.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: July 14, 2020
    Assignee: SANYO DENKI CO., LTD.
    Inventors: Naoki Murakami, Masashi Murakami
  • Patent number: 10707248
    Abstract: In one general aspect, the techniques disclosed here feature an imaging device that includes: a semiconductor substrate; a first pixel cell including a first photoelectric converter in the semiconductor substrate, and a first capacitive element one end of which is electrically connected to the first photoelectric converter; and a second pixel cell including a second photoelectric converter in the semiconductor substrate. An area of the second photoelectric converter is larger than an area of the first photoelectric converter in a plan view.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: July 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Sanshiro Shishido, Masashi Murakami, Kazuko Nishimura
  • Patent number: 10701295
    Abstract: An imaging device provided with: a pixel including a photoelectric converter that converts light into charges, the pixel outputting a first signal corresponding to an amount of the charges; an output signal line coupled to the pixel, the first signal being transmitted through the output signal line; a load transistor having a source, a drain, and a gate, one of the source and the drain being coupled to the output signal line; and a voltage supply circuit coupled to the gate of the load transistor, the voltage supply circuit selectively supplying either a first voltage or a second voltage to the gate.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 30, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Makoto Shouho, Masashi Murakami
  • Patent number: 10688673
    Abstract: An oscillatory linear actuator includes an electromagnetic core block including an electromagnet (electromagnetic part), and a magnetic block that holds permanent magnets so that the permanent magnets face the electromagnet with a predetermined space in between. The electromagnetic core block integrally includes a core, a coil bobbin, and a base, the core and the coil bobbin forming the electromagnet, and the base holding the core and the coil bobbin. The magnetic block includes the permanent magnets and a frame that holds the permanent magnets so as to allow the permanent magnets to oscillate freely and holds the electromagnetic core block. The frame has a guide portion that guides the electromagnetic core block to adjust a positional relation of the permanent magnets and the electromagnet, and the base is fixed to the frame inside the guide portion.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: June 23, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tomoaki Murakami, Noboru Kobayashi, Hiroki Inoue, Masashi Moriguchi
  • Publication number: 20200179814
    Abstract: Exemplary communication system 1 includes game devices 10, communication terminals 20, and game support server 30. Game devices 10 enable users to perform a multi-play activity. Each of communication terminals 20 runs an application associated with corresponding game device 10. Game support server 30 divides communication terminals 20 into separate communication groups in accordance with a situation of the multi-play activity performed by game devices 10 so that communication terminals 20 belonging to a same communication group can communicate with each other.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Daisuke NAKAMURA, Masashi SEIKI, Yosuke FUJINO, Miki MURAKAMI, Hideaki TANABE, Sho ONUMA, Naoya HIROTA, Kojiro TAGUCHI, Daisuke TSUJIMURA
  • Patent number: 10681291
    Abstract: An imaging device includes a photoelectric converter that generates signal charge; a charge storage node that stores the signal charge; a capacitive element connected to the charge storage node; and a first transistor connected to the charge storage node via the capacitive element, wherein switching between on-state and off-state of the first transistor causes an amount of saturated charge in the charge storage node to change.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 9, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Naoki Shimasaki, Masashi Murakami
  • Patent number: 10672827
    Abstract: An imaging device having a pixel including a photoelectric converter that generates electric signal; first transistor having a gate coupled to the photoelectric converter; second transistor one of a source and a drain of which is coupled to one of a source and a drain of the first transistor; third transistor one of a source and a drain of which is coupled to the other of the source and the drain of the second transistor, the other of the source and the drain of the third transistor coupled to the photoelectric converter; first capacitor having a first and second ends, the first end coupled to the other of the source and the drain of the second transistor, first reference voltage applied to the second end; and second capacitor having a third and fourth ends, the third end coupled to the first end, the fourth end coupled to the photoelectric converter.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 2, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuko Nishimura, Yutaka Abe, Masashi Murakami, Yoshiyuki Matsunaga
  • Publication number: 20200141515
    Abstract: A pilot type solenoid valve may include a movable core including a main valve and a pilot valve. The main valve may open or close a valve seat. The pilot valve may be connected to a base end side of the main valve and may be axially movable alone such that the movable core is biased in a closing direction by a spring and is slidable in a guide sleeve of a fixed core wound with an electromagnetic coil. When the pilot type solenoid valve is fully open by a electromagnetic force of the electromagnetic coil, a contact portion of the main valve may contact a contacted portion of the guide sleeve to restrict movement of the main valve toward a base end, and the pilot valve may be sucked and held in a state where a base end of the pilot valve does not contact the fixed core.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Inventors: Masashi Iwasaki, Tomoaki Fukuoka, Tsutomu Murakami
  • Patent number: 10596473
    Abstract: Exemplary communication system 1 includes game devices 10, communication terminals 20, and game support server 30. Game devices 10 enable users to perform a multi-play activity. Each of communication terminals 20 runs an application associated with corresponding game device 10. Game support server 30 divides communication terminals 20 into separate communication groups in accordance with a situation of the multi-play activity performed by game devices 10 so that communication terminals 20 belonging to a same communication group can communicate with each other.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: March 24, 2020
    Assignee: NINTENDO CO., LTD.
    Inventors: Daisuke Nakamura, Masashi Seiki, Yosuke Fujino, Miki Murakami, Hideaki Tanabe, Sho Onuma, Naoya Hirota, Kojiro Taguchi, Daisuke Tsujimura
  • Publication number: 20200041161
    Abstract: Provided is a fan control apparatus which includes: a first sensor; a second sensor; an RF fan; and a controller. The first sensor is provided in a first room, and is configured to acquire a measured value of at least one condition selected from conditions of atmospheric pressure, temperature, and humidity for the first room, the second sensor is provided in a second room adjacent to the first room, and is configured to acquire a measured value of the same condition as the at least one selected condition for the second room, the RF fan is placed at a boundary between the first and second rooms, and the controller is configured to control a rotational speed and rotational direction of the RF fan in such a manner that the measured values of the first and second sensors are the same.
    Type: Application
    Filed: July 22, 2019
    Publication date: February 6, 2020
    Inventors: Naoki MURAKAMI, Honami OSAWA, Souma ARAKI, Masashi MURAKAMI