Patents by Inventor Koji Imamura

Koji Imamura 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: 20210095151
    Abstract: A composition for aqueous ink contains water and a coloring material, wherein the calcium ion content x (ppm) and the oxalate ion content y (ppm) in the composition for aqueous ink jet satisfy the relation of y?3491.8x?3.386.
    Type: Application
    Filed: February 6, 2019
    Publication date: April 1, 2021
    Inventors: Kei HIRUMA, Homare KURIBAYASHI, Shotaro WATANABE, Koji IMAMURA, Masato HANAMURA, Jungo ASANO
  • Patent number: 10769917
    Abstract: A wireless communications system according to an aspect includes a communications terminal, a detection unit, and a control unit. The communications terminal includes a communications unit to communicate wirelessly with a communications partner terminal. The detection unit detects movement of the communications terminal. The control unit controls the communications terminal so as to vary a communicable area of the communications unit. The communicable area is defined relatively to the communications terminal. The control unit varies the communicable area according to at least magnitude of the movement detected by the detection unit.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 8, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Imamura, Shinichi Okada, Motoo Nakagawa, Masahiro Kumagawa, Junichi Takahashi
  • Publication number: 20200278226
    Abstract: In order to accurately calculate an estimated flow rate by a dynamic constant volume method, a flow rate calculation system including a tank into which fluid flows, an inflow line through which the fluid flows into the tank, and a pressure sensor that detects the pressure inside the tank is adapted to include: a pressure change data storage part that stores pressure change data indicating a temporal change in the pressure detected by the pressure sensor during an inflow period; a flow rate calculation part that calculates the estimated flow rate during the inflow period based on a pressure change rate; and a flow rate correction part that, on the basis of first pressure detected by the pressure sensor after a predetermined time has elapsed after the inflow period and second pressure included in the pressure change data and higher than the first pressure, corrects the estimated flow rate.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Inventors: Masanori Terasaka, Koji Imamura, Osamu Horinouchi, Yasuhiro Isobe
  • Publication number: 20200242580
    Abstract: A shopping assistance system includes a strength acquirer and a determining processor. The strength acquirer is configured to acquire values of a received signal strength indication at a reader device while the reader device performs wireless communication with an electronic tag attached to at least one product. The reader device is configured to perform the wireless communication with the electronic tag by using a radio wave as a medium to read a piece of product information on the at least one product. The determining processor is configured to determine, for each of the at least one product, whether or not the at least one product is an object to be purchased based on a change of the received signal strength indication over time.
    Type: Application
    Filed: September 26, 2018
    Publication date: July 30, 2020
    Inventors: Koji IMAMURA, Junichi TAKAHASHI, Masahiro KUMAGAWA, Motoo NAKAGAWA, Shinichi OKADA
  • Publication number: 20200122486
    Abstract: An ink jet textile printing ink contains 5% by mass to 20% by mass of a water-soluble dye, water, a water-soluble organic solvent, and active carbon particles. The active carbon particles include particles having a particle size of 50 nm to 1000 nm, and the active carbon particles having the particle size of 50 nm to 1000 nm are contained in a proportion of 500 to 300000 particles per milliliter. Also, the active carbon particles may include particles having a particle size of 50 nm to 200 nm, and the active carbon particles having a particle size of 50 nm to 200 nm may be contained in a proportion of 2000 to 30000 particles per milliliter. The active carbon particles may have an average particle size in the range of 100 nm to 600 nm.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 23, 2020
    Inventors: Koji IMAMURA, Homare KURIBAYASHI, Shotaro WATANABE, Kei HIRUMA, Masato HANAMURA, Jungo ASANO
  • Patent number: 10557046
    Abstract: To provide a film-forming ink and a film formation method, capable of making the dimensional accuracy of a film to be formed excellent by increasing the apparent liquid droplet amount of a film-forming ink to be supplied as a liquid droplet into an opening part included in a partition wall, and also to provide a device with a film and an electronic apparatus, each of which has a film formed using the film formation method. A film-forming ink of the invention includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed, wherein the liquid medium contains a first component which has a boiling point at an atmospheric pressure of 200° C. or higher and a second component which has a boiling point at an atmospheric pressure lower than the first component.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takuya Sonoyama, Koji Imamura, Shotaro Watanabe
  • Patent number: 10522758
    Abstract: An ink for forming a functional layer, which is used when any thin film layer among functional layers consisting of a plurality of thin film layers is formed, includes a functional layer forming material and a solvent for dissolving the functional layer forming material, and in which the number of particles of 0.5 ?m or more is 7 or less in 10 ml of the ink for forming a functional layer.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 31, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Imamura, Masahiro Uchida, Takuya Sonoyama
  • Publication number: 20190325723
    Abstract: A wireless communications system according to an aspect includes a communications terminal, a detection unit, and a control unit. The communications terminal includes a communications unit to communicate wirelessly with a communications partner terminal. The detection unit detects movement of the communications terminal. The control unit controls the communications terminal so as to vary a communicable area of the communications unit. The communicable area is defined relatively to the communications terminal. The control unit varies the communicable area according to at least magnitude of the movement detected by the detection unit.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Inventors: Koji IMAMURA, Shinichi OKADA, Motoo NAKAGAWA, Masahiro KUMAGAWA, Junichi TAKAHASHI
  • Publication number: 20190213572
    Abstract: A wireless reading system includes a goods path and a reader device. The goods path allows one or more goods held by a customer passing through a customer path to be moved along. The reader device is configured to perform wireless communication, whose medium is radio waves, with one or more electronic tags attached to the one or more goods while the one or more goods are moved along the goods path, thereby reading one or more pieces of goods information on the one or more goods, respectively.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 11, 2019
    Inventors: Koji IMAMURA, Atsushi MARUYAMA, Shinichi OKADA, Motoo NAKAGAWA, Masahiro KUMAGAWA, Shinsuke OGATA
  • Patent number: 10292099
    Abstract: Provided is a transmission apparatus capable of reducing power consumption of a reception apparatus. The transmission apparatus includes a modulator that modulates a data signal to generate a transmission signal. The modulator modulates the data signal by assigning the data signal to a frequency difference between a first frequency and a second frequency in a carrier.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 14, 2019
    Assignee: Panasonic Corporation
    Inventors: Koji Imamura, Takayuki Abe
  • Patent number: 10167403
    Abstract: An ink according to an embodiment includes a functional layer forming material, wherein the ejection amount of a droplet ejected from a nozzle of an inkjet head is 9.5 ng or more and 11 ng or less, and the length of the droplet when the droplet is ejected from the nozzle at an ejection velocity of 6 m/sec or more and 9 m/sec or less is 250 ?m or less.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 1, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Imamura, Takuya Sonoyama
  • Publication number: 20180201801
    Abstract: An ink according to an embodiment includes a functional layer forming material, wherein the ejection amount of a droplet ejected from a nozzle of an inkjet head is 9.5 ng or more and 11 ng or less, and the length of the droplet when the droplet is ejected from the nozzle at an ejection velocity of 6 m/sec or more and 9 m/sec or less is 250 ?m or less.
    Type: Application
    Filed: March 13, 2018
    Publication date: July 19, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koji IMAMURA, Takuya SONOYAMA
  • Patent number: 9951241
    Abstract: An ink according to an embodiment includes a functional layer forming material, wherein the ejection amount of a droplet ejected from a nozzle of an inkjet head is 9.5 ng or more and 11 ng or less, and the length of the droplet when the droplet is ejected from the nozzle at an ejection velocity of 6 m/sec or more and 9 m/sec or less is 250 ?m or less.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 24, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Imamura, Takuya Sonoyama
  • Publication number: 20170338413
    Abstract: An ink for forming a functional layer, which is used when any thin film layer among functional layers consisting of a plurality of thin film layers is formed, includes a functional layer forming material and a solvent for dissolving the functional layer forming material, and in which the number of particles of 0.5 ?m or more is 7 or less in 10 ml of the ink for forming a functional layer.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 23, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koji IMAMURA, Masahiro UCHIDA, Takuya SONOYAMA
  • Patent number: 9825225
    Abstract: An ink for forming a functional layer, which is used when any thin film layer among functional layers consisting of a plurality of thin film layers is formed, includes a functional layer forming material and a solvent for dissolving the functional layer forming material, and in which the number of particles of 0.5 ?m or more is 7 or less in 10 ml of the ink for forming a functional layer.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 21, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Imamura, Masahiro Uchida, Takuya Sonoyama
  • Publication number: 20170267880
    Abstract: To provide a film-forming ink and a film formation method, capable of making the dimensional accuracy of a film to be formed excellent by increasing the apparent liquid droplet amount of a film-forming ink to be supplied as a liquid droplet into an opening part included in a partition wall, and also to provide a device with a film and an electronic apparatus, each of which has a film formed using the film formation method. A film-forming ink of the invention includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed, wherein the liquid medium contains a first component which has a boiling point at an atmospheric pressure of 200° C. or higher and a second component which has a boiling point at an atmospheric pressure lower than the first component.
    Type: Application
    Filed: November 30, 2015
    Publication date: September 21, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takuya SONOYAMA, Koji IMAMURA, Shotaro WATANABE
  • Patent number: 9755147
    Abstract: An ink for forming a functional layer, which is used when any thin film layer among functional layers consisting of a plurality of thin film layers is formed, includes a functional layer forming material and a solvent for dissolving the functional layer forming material, and in which the number of particles of 0.5 ?m or more is 7 or less in 10 ml of the ink for forming a functional layer.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: September 5, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koji Imamura, Masahiro Uchida, Takuya Sonoyama
  • Publication number: 20170058140
    Abstract: An ink according to an embodiment includes a functional layer forming material, wherein the ejection amount of a droplet ejected from a nozzle of an inkjet head is 9.5 ng or more and 11 ng or less, and the length of the droplet when the droplet is ejected from the nozzle at an ejection velocity of 6 m/sec or more and 9 m/sec or less is 250 ?m or less.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 2, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koji IMAMURA, Takuya SONOYAMA
  • Patent number: 9480019
    Abstract: A wireless communication apparatus in a first wireless communication system is equipped with a power detector for detecting power of a reception signal; an envelope detector for detecting an envelope signal of the reception signal; a signal determiner for determining whether the reception signal is a first signal to be used for a communication in the first wireless communication system, on the basis of a variation amount of the envelope signal; a wireless communicator for performing a wireless communication; and a wireless communication activator for activating the wireless communicator when the wireless communication apparatus detects power of the reception signal and determines that the reception signal is the first signal.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 25, 2016
    Assignee: Panasonic Corporation
    Inventors: Koji Imamura, Takayuki Abe
  • Patent number: 9425634
    Abstract: A charging apparatus for a secondary battery comprises: a power supply circuit connected to a primary winding 11a of a transformer T1; a main winding 11b and a sub winding 11c connected to a secondary side of the transformer T1; a charging circuit 110 connected to the main winding 11b, the charging circuit 110 supplying power to a battery pack 130 to be charged; and a control circuit 120 connected to the sub winding 11c, the control circuit 120 controlling the charging circuit 110, wherein the charging circuit 110 comprises a LED 140 indicating a standby state or a charge completion state, the LED 140 being lighted at light-load time of the charging circuit 110 based on a command of the control circuit 120.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: August 23, 2016
    Assignees: TAMURA CORPORATION, MAKITA CORPORATION
    Inventors: Koji Imamura, Takeshi Yamamoto, Yasuhiro Tabuchi, Makihiro Kobayashi