Patents by Inventor Kazuhiro Murata

Kazuhiro Murata 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: 20210070047
    Abstract: A liquid droplet ejection device includes at least one first liquid droplet ejection unit including a first liquid holding unit and a first tip, the first tip to eject the first liquid in the first liquid holding unit as a first liquid droplet onto an object; at least one second liquid droplet ejection unit including a second liquid holding unit and a second tip, the second tip to eject the second liquid in the second liquid holding unit as a second liquid droplet onto the object; an object holding unit to hold the object; and a driving unit to move the first tip and the second tip in a first direction. An inner diameter of the second tip is larger than an inner diameter of the first tip. The first tip and the second tip are arranged along the first direction. The second tip is arranged behind the first tip.
    Type: Application
    Filed: November 20, 2020
    Publication date: March 11, 2021
    Inventor: Kazuhiro MURATA
  • Publication number: 20210053345
    Abstract: A liquid droplet ejection device includes a first liquid droplet ejection unit including a first liquid holding unit configured to hold a first liquid and a first tip configured to eject a first liquid of the first liquid holding unit as a first liquid droplet, a second liquid droplet ejection unit including a second liquid holding unit configured to hold a second liquid and a second configured tip to eject the second liquid of the second liquid holding unit as a second liquid droplet differing from the first liquid droplet, an object holding unit configured to hold an object the first liquid and the second liquid being ejected to the object, and a driving unit configured to move the first tip and the second tip in a first direction relative to the object holding unit, and the first tip is arranged in the first direction relative to the second tip.
    Type: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Inventor: Kazuhiro MURATA
  • Patent number: 10821910
    Abstract: A hydraulic excavator has a first stereo camera and a second stereo camera. The first stereo camera has an imaging unit and an imaging unit. The second stereo camera has an imaging unit and an imaging unit. A case accommodates imaging unit and imaging unit inside. Case accommodates imaging unit and imaging unit inside. Case and case are attached to the outside of cab.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 3, 2020
    Assignee: KOMATSU LTD.
    Inventors: Hiroshi Abe, Yoshiaki Honma, Takeshi Ikeda, Kazuhiro Murata
  • Patent number: 10471802
    Abstract: An operator's compartment has an internal space. A case has an internal space in communication with the internal space of the operator's compartment. An air conditioning unit is disposed in the internal space of the case and has an internal-air supply port which introduces air from the internal space. An internal-air filter is attached to the internal-air supply port.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 12, 2019
    Assignee: KOMATSU LTD.
    Inventors: Kazuhiro Murata, Akihide Namura, Shota Suzuki
  • Publication number: 20190077333
    Abstract: A hydraulic excavator has a first stereo camera and a second stereo camera. The first stereo camera has an imaging unit and an imaging unit. The second stereo camera has an imaging unit and an imaging unit. A case accommodates imaging unit and imaging unit inside. Case accommodates imaging unit and imaging unit inside. Case and case are attached to the outside of cab.
    Type: Application
    Filed: March 31, 2017
    Publication date: March 14, 2019
    Applicant: KOMATSU LTD.
    Inventors: Hiroshi ABE, Yoshiaki HONMA, Takeshi IKEDA, Kazuhiro MURATA
  • Publication number: 20180248540
    Abstract: A switching circuit includes main switching a device and a drive circuit. The main switching device has a gate terminal, a drain terminal, and a first source terminal through which a main current flows, and a second source terminal for gate drive connected to drive circuit. The drive circuit has a bias capacitor having a negative electrode terminal connected to the second source terminal, a first series circuit formed between a positive electrode terminal and the gate terminal by connecting a high-side switch, a resistor, and a capacitor in series, and a second series circuit formed between the gate terminal and the second source terminal by connecting the capacitor, a resistor and a low-side switch in series. The drive circuit adjusts each of gate charge and discharge currents, and further damps the oscillation of the waveform of gate current/voltage.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Takuya ISHII, Daijiro ARISAWA, Masanori ITO, Takao HASHIMOTO, Takeshi AZUMA, Miwa ISHITSUBO, Kazuhiro MURATA
  • Publication number: 20180178616
    Abstract: An operator's compartment has an internal space. A case has an internal space in communication with the internal space of the operator's compartment. An air conditioning unit is disposed in the internal space of the case and has an internal-air supply port which introduces air from the internal space. An internal-air filter is attached to the internal-air supply port.
    Type: Application
    Filed: August 10, 2016
    Publication date: June 28, 2018
    Inventors: Kazuhiro MURATA, Akihide NAMURA, Shota SUZUKI
  • Publication number: 20170239730
    Abstract: A processing device for a metal material, containing: an airtight container for housing a specimen thereinside; an oxygen pump for extracting oxygen molecules from a gas discharged from the airtight container; a circulation means for returning the gas into the airtight container; and a plasma generation means present inside the airtight container for converting the gas returned from the circulation means into plasma and exposing the specimen thereto.
    Type: Application
    Filed: August 11, 2015
    Publication date: August 24, 2017
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Naoki SHIRAKAWA, Kazuhiro MURATA
  • Patent number: 9496795
    Abstract: A switching power supply apparatus of the present disclosure is a device connection state detection circuit that detects a connection state in a load device connection terminal in a power supply system having the load device connection terminal. The device connection state detection circuit includes a transformer, a switching element, a pulse generator, and a waveform detection circuit. The waveform detection circuit detects a voltage or a current generated in a primary winding wire or a secondary winding wire of the transformer in accordance with operation of a pulse signal, compares the detected voltage or current with a preset reference value, and outputs an output signal in accordance with a comparison result, to an OFF terminal.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: November 15, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naohiko Morota, Tatsuya Sakurai, Takashi Saji, Keita Kawabe, Kazuhiro Murata, Koji Suzuki, Yoshihiro Mori
  • Publication number: 20150349651
    Abstract: A switching power supply apparatus of the present disclosure is a device connection state detection circuit that detects a connection state in a load device connection terminal in a power supply system having the load device connection terminal. The device connection state detection circuit includes a transformer, a switching element, a pulse generator, and a waveform detection circuit. The waveform detection circuit detects a voltage or a current generated in a primary winding wire or a secondary winding wire of the transformer in accordance with operation of a pulse signal, compares the detected voltage or current with a preset reference value, and outputs an output signal in accordance with a comparison result, to an OFF terminal.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 3, 2015
    Inventors: NAOHIKO MOROTA, TATSUYA SAKURAI, TAKASHI SAJI, KEITA KAWABE, KAZUHIRO MURATA, KOJI SUZUKI, YOSHIHIRO MORI
  • Patent number: 9122416
    Abstract: Each actual page inside a pool is configured from a plurality of actual tracks, and each virtual page inside a virtual volume is configured from a plurality of virtual tracks. A storage control apparatus of a mainframe system has management information that includes information denoting a track in which there exists a user record, which is a record including user data (the data used by a host apparatus of a mainframe system). Based on the management information, a controller identifies an actual page that is configured only from tracks that do not comprise the user record, and cancels the allocation of the identified actual page to the virtual page.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: September 1, 2015
    Assignee: HITACHI, LTD.
    Inventors: Kazuhiro Murata, Hisaharu Takeuchi, Junichi Muto, Akihiro' Mori, Kazue Jindo
  • Patent number: 9024613
    Abstract: A switching power supply apparatus includes: an input terminal; an output terminal; a switching element; an input and output converting unit which converts input voltage applied through the switching element into output voltage to supply output power to a load; an output voltage feedback unit which outputs a feedback signal, based on the output voltage; a switch current detecting unit which detects current flowing through the switching element; an oscillating frequency setting unit which sets the switching frequency of the switching element, based on the feedback signal; a peak current setting unit which controls turn-off of the switching element by setting a current threshold such that a switch current peak (i) is constant regardless of a change in the output power and (ii) increases as the input voltage increases; and a switching control unit which controls switching operation of the switching element.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: May 5, 2015
    Assignee: Panasonic Corporation
    Inventor: Kazuhiro Murata
  • Patent number: 9006296
    Abstract: According to the present invention, a metal nanoparticle dispersion suitable to multiple layered coating by jetting in the form of fine droplets is prepared by dispersing metal nanoparticles having an average particle size of 1 to 100 nm in a dispersion solvent having a boiling point of 80° C. or higher in such a manner that the volume percentage of the dispersion solvent is selected in the range of 55 to 80% by volume and the fluid viscosity (20° C.) of the dispersion is chosen in the range of 2 mPa·s to 30 mPa·s, and then when the dispersion is discharged in the form of fine droplets by inkjet method or the like, the dispersion is concentrated by evaporation of the dispersion solvent in the droplets in the course of flight, coming to be a viscous dispersion which can be applicable to multi-layered coating.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: April 14, 2015
    Assignees: Harima Chemicals, Inc., SIJ Technology, Inc., National Institute of Advanced Industrial Science and Technology
    Inventors: Daisuke Itoh, Akihito Izumitani, Noriaki Hata, Yorishige Matsuba, Kazuhiro Murata, Hiroshi Yokoyama
  • Patent number: 8956969
    Abstract: A hole formation method including applying a pillar-forming liquid to a base material, to thereby form a pillar; applying an insulating film-forming material to the base material on which the pillar has been formed, to thereby form an insulating film; removing the pillar to form an opening in the insulating film; and heat treating the insulating film in which the opening has been formed.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: February 17, 2015
    Assignees: Ricoh Company, Ltd., Sijtechnology, Inc.
    Inventors: Yuji Sone, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Kazuhiro Murata, Kazuyuki Masuda
  • Patent number: 8932666
    Abstract: A method is for producing an active matrix organic EL display element by an inkjet method to eject droplets (12) of a liquid via an ejection hole of a nozzle so as to form an organic EL layer. The liquid contains an organic EL layer material. An electrostatic attraction type inkjet apparatus (15) is used whose ejection hole (1b) has a diameter smaller than a diameter of the droplets (12). The droplets are ejected from the nozzle of the electrostatic attraction type inkjet apparatus (15) in such a manner that each of the droplets is 1 pl or less in amount. With this arrangement, the landed droplet dries quickly, and movement of the landed droplet is restricted. This makes it possible to form an organic EL layer accurately with low cost.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: January 13, 2015
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Toshio Tahira, Yasuo Nishi, Kazuhiro Murata, Hiroshi Yokoyama
  • Publication number: 20140164697
    Abstract: Each actual page inside a pool is configured from a plurality of actual tracks, and each virtual page inside a virtual volume is configured from a plurality of virtual tracks. A storage control apparatus of a mainframe system has management information that includes information denoting a track in which there exists a user record, which is a record including user data (the data used by a host apparatus of a mainframe system). Based on the management information, a controller identifies an actual page that is configured only from tracks that do not comprise the user record, and cancels the allocation of the identified actual page to the virtual page.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 12, 2014
    Applicant: HITACHI, LTD.
    Inventors: Kazuhiro MURATA, Hisaharu TAKEUCHI, Junichi MUTO, Akihiro` MORI, Kazue JINDO
  • Patent number: 8688950
    Abstract: Each actual page inside a pool is configured from a plurality of actual tracks, and each virtual page inside a virtual volume is configured from a plurality of virtual tracks. A storage control apparatus of a mainframe system has management information that includes information denoting a track in which there exists a user record, which is a record including user data (the data used by a host apparatus of a mainframe system). Based on the management information, a controller identifies an actual page that is configured only from tracks that do not comprise the user record, and cancels the allocation of the identified actual page to the virtual page.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: April 1, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiro Murata, Hisaharu Takeuchi, Junichi Muto, Akihiro Mori, Kazue Jindo
  • Publication number: 20140071717
    Abstract: A switching power supply apparatus includes: an input terminal; an output terminal; a switching element; an input and output converting unit which converts input voltage applied through the switching element into output voltage to supply output power to a load; an output voltage feedback unit which outputs a feedback signal, based on the output voltage; a switch current detecting unit which detects current flowing through the switching element; an oscillating frequency setting unit which sets the switching frequency of the switching element, based on the feedback signal; a peak current setting unit which controls turn-off of the switching element by setting a current threshold such that a switch current peak (i) is constant regardless of a change in the output power and (ii) increases as the input voltage increases; and a switching control unit which controls switching operation of the switching element.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Applicant: PANASONIC CORPORATION
    Inventor: Kazuhiro MURATA
  • Patent number: 8451635
    Abstract: The switching power supply device includes: an input unit which receives an input voltage; a transformer which includes a primary winding and a secondary winding; an output unit which provides an output voltage; a switching element; and a control circuit. The control circuit includes: a T2on measuring unit which measures a secondary-side conduction time period; a frequency control circuit which provides a second signal used for changing an on-frequency of the switching element in order to narrow a difference between the measured secondary-side conduction time period and a reference value; a primary current detecting circuit which detects a primary current; a current comparing circuit which provides a third signal used for turning the switching element off when the detected primary current becomes equal to a threshold value; and an oscillation control circuit which controls on-off switching of the switching element according to the second signal and the third signal.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 28, 2013
    Assignee: Panasonic Corporation
    Inventor: Kazuhiro Murata
  • Patent number: 8427850
    Abstract: A switching power supply device including: a power transformer including a primary winding, a secondary winding, and an auxiliary winding; a switching element which is connected to the primary winding; an output voltage generation circuit which converts, into a direct-current voltage, a voltage induced in the secondary winding; a secondary-side on-time signal generation circuit which generates a secondary-side on-time signal indicating a secondary-side on-time; and a switching control circuit which controls a switching operation of the switching element so that the second direct-current voltage falls within a specified range, wherein the switching control circuit controls the switching operation so that the direct-current voltage becomes equal to or below an overvoltage specified value when the secondary-side on-time becomes smaller than a set value.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: April 23, 2013
    Assignee: Panasonic Corporation
    Inventors: Naohiko Morota, Tetsuyuki Fukushima, Kazuhiro Murata