Patents by Inventor Hiroshi Nishimura

Hiroshi Nishimura 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: 10065417
    Abstract: Systems and method of maintaining a uniform temperature distribution in an inkjet head. The inkjet head includes a plurality of ink channels that jet droplets of a liquid material onto a medium using piezoelectric actuators. A temperature controller includes a non-jetting pulse generator that provides non-jetting pulses to one or more of the piezoelectric actuators to generate heat. The non-jetting pulses cause the piezoelectric actuators to actuate without jetting a droplet from its corresponding ink channel.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: September 4, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 10016991
    Abstract: A carriage assembly for a printer that reciprocates along scan directions. The carriage assembly includes at least one printhead having a row of jetting channels for ejecting a print fluid, and reservoirs mounted on the carriage assembly that each supply the print fluid to the printhead. At least one of reservoirs is mounted on the carriage assembly to be offset from the row of jetting channels.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 10, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9904467
    Abstract: A display device 100 for displaying content on a display 12, integrated with a touch panel 23, includes position detection means 32 for detecting a position indicated on the display; and content layout determination means 33 for determining a layout of a plurality of contents displayed on the display wherein, when the position detection means detects that a predetermined position on the display is indicated or a display position of a predetermined content is indicated, the content layout determination means moves at least one of displayed contents, based on a priority of displayed contents predetermined according to the display contents displayed on the display, and displays a soft key at a position where a line of sight movement amount is smaller than a line of sight movement amount of the content.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: February 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Munechika Okita, Hiroshi Nishimura
  • Publication number: 20180037252
    Abstract: In an electric power steering device, if a semiconductor switching element is used between a battery and a bridge circuit for opening and closing a current path, this arises a problem of generation of heat by an ON resistance; for this reason, a current flowing through the semiconductor switching element is limited if a difference between the gate voltage and the source voltage of the semiconductor switching element is smaller than or equal to a predetermined value.
    Type: Application
    Filed: April 13, 2015
    Publication date: February 8, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Munenori YAMAMOTO, Hiroshi NISHIMURA
  • Publication number: 20180001627
    Abstract: Systems and method of maintaining a uniform temperature distribution in an inkjet head. The inkjet head includes a plurality of ink channels that jet droplets of a liquid material onto a medium using piezoelectric actuators. A temperature controller includes a non-jetting pulse generator that provides non-jetting pulses to one or more of the piezoelectric actuators to generate heat. The non-jetting pulses cause the piezoelectric actuators to actuate without jetting a droplet from its corresponding ink channel.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9849682
    Abstract: Ink port adapters for multi-color inkjet heads. In one embodiment, the ink port adapter includes two hose fittings for connecting to hoses, and four openings that align with four ink ports of a four-color inkjet head. The adapter includes one ink path that connects one of the hose fittings to two of the openings, and another ink path that connects the other hose fitting to the other two openings. The adapter therefore converts the four-color inkjet head into a two-color inkjet head.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 26, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9849683
    Abstract: Ink port adapters for inkjet heads. In one embodiment, the ink port adapter includes two hose fittings for connecting to hoses, and four openings that align with four ink ports of an inkjet head. The adapter includes one ink path that connects one of the hose fittings to two of the openings, and another ink path that connects the other hose fitting to the other two openings.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: December 26, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9833994
    Abstract: An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: December 5, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Giang Vo, Connor Matsumori
  • Patent number: 9796177
    Abstract: Systems and method of maintaining a uniform temperature distribution in an inkjet head. The inkjet head includes a plurality of ink channels that jet droplets of a liquid material onto a medium using piezoelectric actuators. A temperature controller includes a non-jetting pulse generator that provides non-jetting pulses to one or more of the piezoelectric actuators to generate heat. The non-jetting pulses cause the the piezoelectric actuators to actuate without jetting a droplet from its corresponding ink channel.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: October 24, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Publication number: 20170293525
    Abstract: According to one embodiment, a memory system includes a nonvolatile memory and a controller which controls the nonvolatile memory. The controller notifies to an outside an extensive signal which indicates a predetermined state of the nonvolatile memory or the controller.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 12, 2017
    Inventors: Shinichi Kanno, Hiroshi Nishimura, Hideki Yoshida, Hiroshi Murayama
  • Publication number: 20170253028
    Abstract: Systems and methods of mitigating the effects of crosstalk in an inkjet head. An inkjet head has ink channels that jet droplets of a liquid material using piezoelectric actuators. Drive waveforms provided to the piezoelectric actuators include jetting pulses that cause activation of the piezoelectric actuators to jet the droplets from the ink channels. When crosstalk exists between the ink channels of the inkjet head due to the piezoelectric actuators, the amplitude of the jetting pulses are modified to mitigate the crosstalk between the ink channels.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Shogo Nobumori
  • Publication number: 20170253048
    Abstract: Ink port adapters for inkjet heads. In one embodiment, the ink port adapter includes two hose fittings for connecting to hoses, and four openings that align with four ink ports of an inkjet head. The adapter includes one ink path that connects one of the hose fittings to two of the openings, and another ink path that connects the other hose fitting to the other two openings.
    Type: Application
    Filed: April 17, 2017
    Publication date: September 7, 2017
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Publication number: 20170253047
    Abstract: Ink port adapters for multi-color inkjet heads. In one embodiment, the ink port adapter includes two hose fittings for connecting to hoses, and four openings that align with four ink ports of a four-color inkjet head. The adapter includes one ink path that connects one of the hose fittings to two of the openings, and another ink path that connects the other hose fitting to the other two openings. The adapter therefore converts the four-color inkjet head into a two-color inkjet head.
    Type: Application
    Filed: April 10, 2017
    Publication date: September 7, 2017
    Inventor: Hiroshi Nishimura
  • Publication number: 20170253032
    Abstract: Systems and method of maintaining a uniform temperature distribution in an inkjet head. The inkjet head includes a plurality of ink channels that jet droplets of a liquid material onto a medium using piezoelectric actuators. A temperature controller includes a non-jetting pulse generator that provides non-jetting pulses to one or more of the piezoelectric actuators to generate heat. The non-jetting pulses cause the the piezoelectric actuators to actuate without jetting a droplet from its corresponding ink channel.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Applicant: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9751302
    Abstract: Systems and methods of mitigating the effects of crosstalk in an inkjet head. An inkjet head has ink channels that jet droplets of a liquid material using piezoelectric actuators. Drive waveforms provided to the piezoelectric actuators include jetting pulses that cause activation of the piezoelectric actuators to jet the droplets from the ink channels. When crosstalk exists between the ink channels of the inkjet head due to the piezoelectric actuators, the amplitude of the jetting pulses are modified to mitigate the crosstalk between the ink channels.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: September 5, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Shogo Nobumori
  • Publication number: 20170182777
    Abstract: An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.
    Type: Application
    Filed: March 14, 2017
    Publication date: June 29, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Giang Vo, Connor Matsumori
  • Patent number: 9669633
    Abstract: Ink port adapters for multi-color inkjet heads. In one embodiment, the ink port adapter includes two hose fittings for connecting to hoses, and four openings that align with four ink ports of a four-color inkjet head. The adapter includes one ink path that connects one of the hose fittings to two of the openings, and another ink path that connects the other hose fitting to the other two openings. The adapter therefore converts the four-color inkjet head into a two-color inkjet head.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 6, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroshi Nishimura
  • Patent number: 9664733
    Abstract: A probe device of the present invention measures a position of every chip in a wafer to be inspected to acquire the position as actual measurement data. Then, the probe device calculates a variation amount of an actual measurement position of each chip or a variation amount of a position at which a probe is brought into contact with the each chip of the wafer on the basis of the actual measurement data, and allows a monitor to display a range-of-variation display image that visually displays the variation amount. In the image, a quadrangular area corresponding to the each chip is displayed, and a dot is displayed in each the quadrangular area at a position shifted from a center position thereof in accordance with the variation amount.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: May 30, 2017
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventors: Yuichi Ozawa, Hiroshi Nishimura, Seiichi Ohta, Yasuhito Iguchi, Kunihiko Chiba, Ken Kato
  • Patent number: 9630408
    Abstract: An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: April 25, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Giang Vo, Connor Matsumori
  • Patent number: 9604457
    Abstract: An inkjet head that is able to circulate ink. The inkjet head includes a diaphragm plate, a first restrictor plate, one or more chamber plates, a second restrictor plate, and an orifice plate. The orifice plate forms a plurality of nozzles. The chamber plates form a plurality of chambers corresponding with the nozzles, and also form a return manifold for receiving ink from the chambers when circulating the ink through the inkjet head. The diaphragm plate forms a diaphragm that seals the chambers. The first restrictor plate controls a flow of ink between the chambers and the return manifold to circulate the ink through the inkjet head. The second restrictor plate controls the flow of ink between a supply manifold and the chambers.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: March 28, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Nishimura, Giang Vo, Connor Matsumori