Patents by Inventor Hiroyasu Uchida

Hiroyasu Uchida 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: 11120829
    Abstract: A magnetic recording medium with a reduced average grain diameter and reduced grain diameter dispersion is provided. A magnetic recording medium having a magnetic property (magnetic anisotropy energy) applicable as a magnetic recording medium is provided. It is a magnetic recording medium containing a substrate, a grain diameter control layer, a first seed layer, a second seed layer, and a magnetic recording layer containing an ordered alloy in this order, in which the second seed layer is composed of crystal grains having TiN as a main component, and a grain boundary material having at least one or more selected from the group consisting of metal oxides and carbon as a main component.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: September 14, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Hiroyasu Kataoka, Tsuyoshi Yoshizawa, Tomohiro Moriya, Shinji Uchida, Hirohisa Oyama, Takehito Shimatsu
  • Publication number: 20210131375
    Abstract: A structure of a combustion chamber applied to an engine provided with a piston that reciprocates inside a cylinder, and a fuel supply system that supplies fuel to the combustion chamber defined by the cylinder and the piston, mixture gas of fuel from the fuel supply system and air combusting inside the combustion chamber, is provided. The structure includes a first heat insulating layer covering at least a part of a combustion chamber wall surface defining the combustion chamber and made of a material with a lower thermal conductivity than the combustion chamber wall surface, and a second heat insulating layer covering the first heat insulating layer and facing toward the combustion chamber, a thermal diffusivity of the second heat insulating layer being larger than the thermal diffusivity of the first heat insulating layer. The second heat insulating layer has a thickness less than the first heat insulating layer.
    Type: Application
    Filed: October 14, 2020
    Publication date: May 6, 2021
    Inventors: Ryo Kiyosue, Hiroyasu Uchida, Akira Kageyama, Tsugio Fukube, Yoshiyuki Koga, Masatoshi Seto, Yudai Koshiro, Junki Hori
  • Publication number: 20210010413
    Abstract: An engine system includes a combustion chamber including a cylinder formed in an engine and a piston configured to reciprocate inside the cylinder, a spark plug disposed in a ceiling part of the combustion chamber, and a water injection device configured to inject water into the combustion chamber through a plurality of nozzle holes facing the inside of the combustion chamber. The piston has a cavity in an upper surface thereof. The water injection device injects water into the cavity in a compression stroke at a timing when an extension of axes of at least some of the nozzle holes intersects the cavity. The cavity has a bottom part where the water injected by the water injection device collides, and a raising part configured to raise the water spreading along the bottom part toward the water injection device.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 14, 2021
    Inventors: Takeshi Nagasawa, Xiyao Ge, Akira Kageyama, Hiroyasu Uchida, Ryo Kiyosue
  • Publication number: 20180283046
    Abstract: A key management program causes the computer to operate as a position information acquisition unit, a key use condition acquisition unit, and a lock releasing processor. The key use condition acquisition unit acquires key use conditions including a lock releasing time and identification information, and key use location. The lock releasing processor transmits lock releasing signal to release locked state to key management device, if current time is within a range of lock releasing time and identification information included in key use conditions also matches identification information of communicating key management device, and position information acquired is a location preset as key use location.
    Type: Application
    Filed: June 1, 2018
    Publication date: October 4, 2018
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Hiroyasu UCHIDA, Makoto Kamoi, Mayuko Shidata, Shingo Tsurumi
  • Patent number: 9350849
    Abstract: According to one embodiment, a communication apparatus includes a communication unit that establishes at least one proximity wireless connection with a communication partner apparatus. The communication apparatus includes a connection monitoring unit that monitors the communication unit and detect establishment of the wireless connection. The communication apparatus includes an execution control unit that identifies an establishment history of a plurality of the wireless connections based on a result of monitoring by the connection monitoring unit and, based on the establishment history, controls a process execution unit that executes at least one process.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: May 24, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Akita, Hiroyasu Uchida, Takayoshi Ito
  • Patent number: 9291634
    Abstract: Chemical analysis apparatus for inserting a sample serving as an analyzable substance and a reagent into a reaction container and agitating by irradiating sound waves to the reaction container, the chemical analysis apparatus including: a piezoelectric element generating sound waves; and a driver for driving the piezoelectric element, and including: a wave form producing device for producing an oscillation waveform having a fundamental frequency of the sound waves to be irradiated; an auxiliary waveform producing device for producing an oscillation wave form having a frequency lower than that of the oscillation waveform; a multiplying circuit creating a multiplied waveform between the waveform and the wave form; and, a power amplifier for power-amplifying the multiplied waveform, wherein it is intermittently irradiated with the sound wave in the reaction container, and further, the wave form producing device has a function capable of frequency-modulation with a prescribed frequency width.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 22, 2016
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hajime Katou, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki
  • Patent number: 8989659
    Abstract: A wireless communication device has a power receiving wireless communication unit configured to receive power and perform wireless communication utilizing the power, a storage unit configured to store a portion of the power, and a first wireless communication unit configured to perform wireless communication faster and more efficiently than the power receiving wireless communication unit by utilizing the power stored in the storage unit, when amount of the power stored in the storage unit exceeds a first reference level. The power receiving wireless communication unit includes a power receiver configured to receive power and supply a portion of the power to the storage unit, and a second wireless communication unit configured to perform wireless communication slower and less efficiently than the first wireless communication unit by utilizing the power received by the power receiver.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 24, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Akita, Takayoshi Ito, Masashi Suzuki, Hiroyasu Uchida
  • Publication number: 20150065042
    Abstract: According to one embodiment, a communication apparatus includes a communication unit that establishes at least one proximity wireless connection with a communication partner apparatus. The communication apparatus includes a connection monitoring unit that monitors the communication unit and detect establishment of the wireless connection. The communication apparatus includes an execution control unit that identifies an establishment history of a plurality of the wireless connections based on a result of monitoring by the connection monitoring unit and, based on the establishment history, controls a process execution unit that executes at least one process.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Koji AKITA, Hiroyasu UCHIDA, Takayoshi ITO
  • Publication number: 20140147348
    Abstract: Chemical analysis apparatus for inserting a sample serving as an analyzable substance and a reagent into a reaction container and agitating by irradiating sound waves to the reaction container, the chemical analysis apparatus including: a piezoelectric element generating sound waves; and a driver for driving the piezoelectric element, and including: a wave form producing device for producing an oscillation waveform having a fundamental frequency of the sound waves to be irradiated; an auxiliary waveform producing device for producing an oscillation wave form having a frequency lower than that of the oscillation waveform; a multiplying circuit creating a multiplied waveform between the waveform and the wave form; and, a power amplifier for power-amplifying the multiplied waveform, wherein it is intermittently irradiated with the sound wave in the reaction container, and further, the wave form producing device has a function capable of frequency-modulation with a prescribed frequency width.
    Type: Application
    Filed: February 4, 2014
    Publication date: May 29, 2014
    Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Hajime KATOU, Ryo MIYAKE, Hiroyasu UCHIDA, Katsuhiro KAMBARA, Takenori OKUSA, Shigenori WATARI, Yoichiro SUZUKI, Tomonori MIMURA, Miki TAKI, Akira INAGAKI
  • Patent number: 8658102
    Abstract: A chemical analysis apparatus comprising reaction containers containing therein a substance to be analyzed; an agitating mechanism spaced from the substance to be analyzed and agitating said substance to be analyzed with a liquid in said reaction container; and, a measuring portion for measuring physical properties of the substance to be analyzed, said agitating mechanism having a sound supply portion supplying sound waves to the substance to be analyzed, wherein said sound supply portion comprises a mechanism changing, in time, intensity of ultrasonic waves to be irradiated so as to apply pulsation to a swirl flow in the reaction container.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 25, 2014
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hajime Katou, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki
  • Publication number: 20130137369
    Abstract: A wireless communication device has a power receiving wireless communication unit configured to receive power and perform wireless communication utilizing the power, a storage unit configured to store a portion of the power, and a first wireless communication unit configured to perform wireless communication faster and more efficiently than the power receiving wireless communication unit by utilizing the power stored in the storage unit, when amount of the power stored in the storage unit exceeds a first reference level. The power receiving wireless communication unit includes a power receiver configured to receive power and supply a portion of the power to the storage unit, and a second wireless communication unit configured to perform wireless communication slower and less efficiently than the first wireless communication unit by utilizing the power received by the power receiver.
    Type: Application
    Filed: September 10, 2012
    Publication date: May 30, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji Akita, Takayoshi Ito, Masashi Suzuki, Hiroyasu Uchida
  • Patent number: 7955557
    Abstract: Multiple piezoelectric elements 35 are arranged in a row along the top of liquid level in the reaction vessel 11. An ultrasonic reflecting material 38 is installed on the bottom of the portion of the heat insulating bath 12 where heat insulating medium 13 is stored. A lateral ultrasonic wave 9b is generated on the lower side is generated by actuation of the piezoelectric element 35. Wave 9b is reflected by the ultrasonic reflecting material 38. As a lower ultrasonic wave 8 advances along the wall surface of the reaction vessel, it collides with the specimen liquid level, thereby causing a portion of the liquid level closer to the piezoelectric element 35 to be raised. When the lateral ultrasonic wave 9a is applied to this portion, it reaches the inclined portion of the raised liquid level of the specimen. Swirling flow by agitation 36 is produced by the acoustic radiation pressure of the ultrasonic wave. The specimen and reagent are mixed and agitated by this swirling flow.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: June 7, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Shigenori Watari, Hajime Katou, Katsuhiro Kambara, Hiroyasu Uchida, Takeshi Shibuya
  • Patent number: 7842237
    Abstract: An automatic analyzer which is applied to a device for analyzing specimen by the transfer of a specimen holding rack to an analysis unit and designed not to complicate the transfer system of the rack even if the number of the analysis units is one or increased to two or more, wherein a rack standby disk capable of rotating and stopping under the condition that a plurality of racks are waiting is installed, an exclusive rack reciprocatingly transfer line is provided between each analysis unit and the rack standby disk, only a single rack is led to each rack reciprocatingly transfer line, and the rack is returned to the rack standby disk after the sampling and treatment of the specimen have been completed.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: November 30, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Shibuya, Hiroyasu Uchida, Katsuhiro Kanbara
  • Publication number: 20100233027
    Abstract: A chemical analysis apparatus comprising reaction containers containing therein a substance to be analyzed; an agitating mechanism spaced from the substance to be analyzed and agitating said substance to be analyzed with a liquid in said reaction container; and, a measuring portion for measuring physical properties of the substance to be analyzed, said agitating mechanism having a sound supply portion supplying sound waves to the substance to be analyzed, wherein said sound supply portion comprises a mechanism changing, in time, intensity of ultrasonic waves to be irradiated so as to apply pulsation to a swirl flow in the reaction container.
    Type: Application
    Filed: May 24, 2010
    Publication date: September 16, 2010
    Inventors: Hajime KATOU, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki
  • Patent number: 7771656
    Abstract: A reagent dispensing mechanism (15), first and second dispensing-mechanism transfer means (26, 27), and a second reagent vessel (reagent cassette) carrying-in/out mechanism (24), which are constructed by employing an XY-mechanism, are arranged so as to travel above a reagent table (25) to carry in/out a reagent cassette (22). As compared with the case where the reagent cassette carrying-in/out mechanism (24) is installed radially of the reagent table (25), the area of an automatic analyzer in the horizontal direction can be reduced and a reagent vessel (16) can be moved to a predetermined position in a shorter time by combining the rotation of the reagent table (25) with the movement of the XY-mechanism. Further, as compared the case of dispensing reagents from reagent vessels in a matrix pattern by using the reagent dispensing/transferring mechanism, the travel distance of the transferring mechanism can be shortened and so can be the travel time.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: August 10, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Shibuya, Hiroyasu Uchida, Katsuhiro Kambara
  • Patent number: 7722815
    Abstract: Provided is a chemical analysis apparatus comprising a mechanism which can efficiently agitate a substance to be agitated so that a sample and a reagent are agitated and mixed together in a shorter time with a saved consumption power, incorporating a plurality of sound sources or reflecting plates, and a reaction container is located between one of the sound sources and another of the sound sources or one of the reflecting plates, whereby sound waves can be irradiated toward the reaction container in several directions in order to efficiently fluidize a solution in the reaction container.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: May 25, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hajime Katou, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki
  • Patent number: 7670558
    Abstract: A chemical analysis apparatus in which a sample to be analyzed and a reagent are placed into a reaction container, and sound waves are irradiated to said reaction container so as to agitate them, wherein said chemical analysis apparatus comprises a piezoelectric element producing said sound waves, and drivers for driving said piezoelectric element, said sound waves being intermittently irradiated into said reaction container.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: March 2, 2010
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Hajime Katou, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki
  • Patent number: 7322345
    Abstract: Disclosed is a stuck-open failure detection system for a gas-fuel injection valve adapted to inject or supply gas fuel into/to a combustion chamber of an engine, which comprises: a shutoff value interposed in a fuel supply passage fluidically connected to the gas-fuel injection valve, at a position upstream of the gas-fuel injection valve, and adapted to supply gas fuel to the gas-fuel injection valve in its open state; an open/close controller for controllably opening and closing the shutoff value; a pressure detector for detecting a pressure in a region of the fuel supply passage between the gas-fuel injection valve and the shutoff value; and a stuck-open failure detector for detecting a stuck-open failure that the gas-fuel injection valve is stuck in the open state, based on a pressure change detected by the pressure detector.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: January 29, 2008
    Assignee: Mazda Motor Corporation
    Inventors: Tomoaki Saito, Hiroyasu Uchida, Yasushi Fujikawa
  • Patent number: 7257389
    Abstract: A wireless communication device according to an aspect of this invention includes a main body antenna to communicate with the antenna of a wireless card, and an antenna position setting unit capable of setting a plurality of types of positional relationships between the antenna of the wireless card and the main body antenna.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 14, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyasu Uchida, Takanobu Ishibashi, Mitsuaki Satsukawa, Makoto Kamoi, Kazuaki Naruse
  • Publication number: 20070009387
    Abstract: A chemical analysis apparatus in which a sample to be analyzed and a reagent are placed into a reaction container, and sound waves are irradiated to said reaction container so as to agitate them, wherein said chemical analysis apparatus comprises a piezoelectric element producing said sound waves, and drivers for driving said piezoelectric element, said sound waves being intermittently irradiated into said reaction container.
    Type: Application
    Filed: September 18, 2006
    Publication date: January 11, 2007
    Inventors: Hajime Katou, Ryo Miyake, Hiroyasu Uchida, Katsuhiro Kambara, Takenori Okusa, Shigenori Watari, Yoichiro Suzuki, Tomonori Mimura, Miki Taki, Akira Inagaki