Patents by Inventor Takashi Oyama

Takashi Oyama 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: 10719113
    Abstract: When an electronic apparatus including a core chip and a hub controller chip is connected to an apparatus on the host side, a USB hub controller in the hub controller chip executes a process on a configuration between the USB hub controller and the apparatus on the host side and sets a limit value of power to be supplied, from a first limit value to a second limit value higher than the first limit value, and a VBUS current controller in the hub controller chip supplies the core chip with a power supply voltage generated based on a supplied power, which allows to maintain a configuration state between the apparatus on the host side and the USB hub controller at a time of starting up or at a time of class switching of the core chip and supply the core chip with the sufficient power.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 21, 2020
    Assignee: SOCIONEXT INC.
    Inventors: Takashi Oyama, Kuniaki Iwano, Masakazu Sato, Soichi Hagiwara
  • Patent number: 10280524
    Abstract: The present invention provides a set of ozone water manufacturing device which can greatly reduce an unpleasant smell of ozone gas when ozone water is used for sterilizing hands and feet, and can save power consumption of a pump which operates for preventing stagnation of a water stream in an electrolytic bath. The ozone water manufacturing device includes an electrolytic bath and a mixer which atomizes air bubbles of the ozone gas in the ozone water flowing out of the electrolytic bath. Each of the electrode assemblies in an electrode unit within the electrolytic bath is inclined at the predetermined same angle in a vertical direction. The mixer includes a mixing case bottom and a mixing case main body. A vortex flow generating plate generates a violent water stream from the water stream within the mixing case main body.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 7, 2019
    Assignee: WATER AGENCY INC.
    Inventors: Takashi Oyama, Masaaki Kato, Yasuhiro Kotani
  • Patent number: 10193054
    Abstract: A piezoelectric ceramic that contains an alkali niobate compound as its main ingredient. The alkali niobate compound has a perovskite crystal structure represented by AmBO3 and contains an alkali metal. There exists Sn in part of site A, and Zr in part of site B. A radial distribution function obtained from a K-edge X-ray absorption spectrum of Sn has a first peak intensity P1 at a first distance from a Sn atom and a second peak intensity P2 at a second distance from the Sn atom. The second distance is greater than the first distance, and the peak intensity ratio P1/P2 is 2.7 or less.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: January 29, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinichiro Kawada, Shoichiro Suzuki, Hideki Ishii, Hiroyuki Hayashi, Suetake Omiya, Takashi Oyama
  • Patent number: 10176773
    Abstract: A semiconductor device and a mobile terminal are described herein. In one example, a semiconductor device is provided that includes: a power-source part; an interface part; a logic part; and a driving part. In the semiconductor device, the power-source part includes a power-source-cutoff-detection circuit operable to detect a first state in which supply of an external power source is cut off. The logic part includes: a data-cutoff-detection circuit operable to detect a second state in which supply of stream data accompanied by synchronizing signals from outside the semiconductor device is cut off undesirably; and a control circuit operable to perform control for having the driving part cope with the power source cutoff with the power-source-cutoff-detection circuit detecting the first state or the data-cutoff-detection circuit detecting the second state.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 8, 2019
    Assignee: Synaptics Japan GK
    Inventors: Yoshitaka Iwasaki, Takashi Oyama, Akihito Kumamoto, Satoshi Yamaguchi
  • Publication number: 20180334752
    Abstract: The present invention provides a set of ozone water manufacturing device which can greatly reduce an unpleasant smell of ozone gas when ozone water is used for sterilizing hands and feet, and can save power consumption of a pump which operates for preventing stagnation of a water stream in an electrolytic bath. The ozone water manufacturing device includes an electrolytic bath and a mixer which atomizes air bubbles of the ozone gas in the ozone water flowing out of the electrolytic bath. Each of the electrode assemblies in an electrode unit within the electrolytic bath is inclined at the predetermined same angle in a vertical direction. The mixer includes a mixing case bottom and a mixing case main body. A vortex flow generating plate generates a violent water stream from the water stream within the mixing case main body.
    Type: Application
    Filed: September 6, 2016
    Publication date: November 22, 2018
    Inventors: Takashi OYAMA, Masaaki KATO, Yasuhiro KOTANI
  • Patent number: 9732278
    Abstract: Provided are petroleum coke having a sufficiently small coefficient of thermal expansion (CTE) and yielding sufficiently suppressed puffing phenomenon and a method for stably producing the petroleum coke. Specifically, the method for producing the petroleum coke comprises the step of coking feedstock oil comprising light oil having an end point of distillation of 380° C. or less, and heavy oil having an initial boiling point of 200° C. or more and comprising 50% by mass or more of an aromatic component, sulfur content of 0.5% by mass or less, and nitrogen content of 0.2% by mass or less.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 15, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Hiroshi Kawachi, Kazuhisa Nakanishi, Toshitaka Fujii, Takashi Oyama
  • Publication number: 20160319199
    Abstract: Provided are petroleum coke having a sufficiently small coefficient of thermal expansion (CTE) and yielding sufficiently suppressed puffing phenomenon and a method for stably producing the petroleum coke. Specifically, the method for producing the petroleum coke comprises the step of coking feedstock oil comprising light oil having an end point of distillation of 380° C. or less, and heavy oil having an initial boiling point of 200° C. or more and comprising 50% by mass or more of an aromatic component, sulfur content of 0.5% by mass or less, and nitrogen content of 0.2% by mass or less.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 3, 2016
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Hiroshi Kawachi, Kazuhisa Nakanishi, Toshitaka Fujii, Takashi Oyama
  • Publication number: 20160232867
    Abstract: A semiconductor device and a mobile terminal are described herein. In one example, a semiconductor device is provided that includes: a power-source part; an interface part; a logic part; and a driving part. In the semiconductor device, the power-source part includes a power-source-cutoff-detection circuit operable to detect a first state in which supply of an external power source is cut off. The logic part includes: a data-cutoff-detection circuit operable to detect a second state in which supply of stream data accompanied by synchronizing signals from outside the semiconductor device is cut off undesirably; and a control circuit operable to perform control for having the driving part cope with the power source cutoff with the power-source-cutoff-detection circuit detecting the first state or the data-cutoff-detection circuit detecting the second state.
    Type: Application
    Filed: January 18, 2016
    Publication date: August 11, 2016
    Inventors: Yoshitaka IWASAKI, Takashi OYAMA, Akihito KUMAMOTO, Satoshi YAMAGUCHI
  • Publication number: 20160231793
    Abstract: When an electronic apparatus including a core chip and a hub controller chip is connected to an apparatus on the host side, a USB hub controller in the hub controller chip executes a process on a configuration between the USB hub controller and the apparatus on the host side and sets a limit value of power to be supplied, from a first limit value to a second limit value higher than the first limit value, and a VBUS current controller in the hub controller chip supplies the core chip with a power supply voltage generated based on a supplied power, which allows to maintain a configuration state between the apparatus on the host side and the USB hub controller at a time of starting up or at a time of class switching of the core chip and supply the core chip with the sufficient power.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Applicant: Socionext Inc.
    Inventors: Takashi OYAMA, Kuniaki IWANO, Masakazu SATO, Soichi HAGIWARA
  • Publication number: 20160064646
    Abstract: A piezoelectric ceramic that contains an alkali niobate compound as its main ingredient. The alkali niobate compound has a perovskite crystal structure represented by AmBO3 and contains an alkali metal. There exists Sn in part of site A, and Zr in part of site B. A radial distribution function obtained from a K-edge X-ray absorption spectrum of Sn has a first peak intensity P1 at a first distance from a Sn atom and a second peak intensity P2 at a second distance from the Sn atom. The second distance is greater than the first distance, and the peak intensity ratio P1/P2 is 2.7 or less.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Inventors: Shinichiro Kawada, Shoichiro Suzuki, Hideki Ishii, Hiroyuki Hayashi, Suetake Omiya, Takashi Oyama
  • Patent number: 9214666
    Abstract: This disclosure concerns graphite materials having lattice distortion for lithium-ion secondary battery negative electrode obtained by a manufacturing method comprising the steps of: pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass % to obtain powder of the raw coke composition; giving compressive stress and shear stress to the powder of the raw coke composition so that average circularity is 0.91 to 0.97 to obtain round powder; heating the round powder to obtain a carbonized composition; and graphitizing the carbonized composition.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: December 15, 2015
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, TODA KYOGO CORP.
    Inventors: Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Tamotsu Tano, Toshiyuki Oda, Ippei Fujinaga, Tomoaki Urai, Seiji Okazaki, Katsuaki Kurata, Toshiaki Hiramoto, Akino Sato, Wataru Oda
  • Patent number: 9147873
    Abstract: A method for producing an amorphous carbon material for a negative electrode of a lithium-ion secondary battery includes the steps of; pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process to obtain powder of the raw coke composition, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass %; giving compressive stress and shear stress to the powder of the raw coke composition to obtain a carbonized composition precursor; and heating the carbonized composition precursor under an inert atmosphere at a temperature from 900° C. to 1,500° C. so that a size of a crystallite Lc(002) is in a range of 2 nm to 8 nm, the size being calculated from a (002) diffraction line obtained by X-ray wide-angle diffractometry.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: September 29, 2015
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, TODA KOGYO CORP.
    Inventors: Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Tamotsu Tano, Toshiyuki Oda, Ippei Fujinaga, Tomoaki Urai, Seiji Okazaki, Katsuaki Kurata, Toshiaki Hiramoto, Akino Sato, Wataru Oda
  • Patent number: 9142832
    Abstract: A graphite material for a negative electrode is provided which can suppress capacity degradation due to repeated charging and discharging cycles, storage in a charged state, and floating charging. A method of manufacturing a graphite material for a negative electrode of a lithium ion secondary battery is provided in which an atomic ratio H/C of hydrogen atoms H and carbon atoms C in the raw coke composition is in a range of 0.30 to 0.50 and a microstrength of the raw coke composition is in a range of 7 wt % to 17 wt %.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: September 22, 2015
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, TODA KOGYO CORP.
    Inventors: Takashi Suzuki, Noriyo Ishimaru, Takashi Oyama, Tamotsu Tano, Toshiyuki Oda, Ippei Fujinaga, Tomoaki Urai, Seiji Okazaki, Katsuaki Kurata, Toshiaki Hiramoto, Akino Sato, Wataru Oda
  • Patent number: 8784644
    Abstract: Provided is a stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery which composition is useful for achieving excellent high-speed charge and discharge characteristics. The stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery uses a bottom oil of residue fluid catalytic cracking apparatus as a raw material. The stock oil composition comprises, of a saturated component, an aromatic component, a resin component and an asphaltene component detectable by development of the stock oil composition using thin-layer chromatography, the saturated component ranging from 30 to 50% by weight and the aromatic component ranging from 50 to 70% by weight; and has an average molecular weight of from 400 to 600.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 22, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tamotsu Tano, Takashi Oyama, Hiroshi Ozawa, Jun Ougiya, Akio Sakamoto
  • Publication number: 20140161713
    Abstract: An amorphous carbon material for lithium-ion secondary battery negative electrode is capable of reducing capacity degradation due to repeated charge and discharge cycles, storage while being charged, or floating charge. A method for producing an amorphous carbon material for a negative electrode of a lithium-ion secondary battery includes the steps of: pulverizing and classifying a raw coke composition obtained from a heavy-oil composition undergone coking by delayed coking process to obtain powder of the raw coke composition, the raw coke composition having a H/C atomic ratio that is a ratio of hydrogen atoms H and carbon atoms C of 0.30 to 0.50 and having a micro-strength of 7 to 17 mass %; giving compressive stress and shear stress to the powder of the raw coke composition to obtain a carbonized composition precursor; and heating the carbonized composition precursor under an inert atmosphere at a temperature from 900° C. to 1,500° C.
    Type: Application
    Filed: May 17, 2013
    Publication date: June 12, 2014
    Inventors: Takashi SUZUKI, Noriyo ISHIMARU, Takashi OYAMA, Tamotsu TANO, Toshiyuki ODA, Ippei FUJINAGA (DECEASED), Tomoaki URAI, Seiji OKAZAKI, Katsuaki KURATA, Toshiaki HIRAMOTO, Akino SATO, Wataru ODA
  • Patent number: 8741125
    Abstract: The invention provides a stock oil composition for a carbon material for a negative electrode for a lithium ion secondary battery, having a 10 vol % distillation temperature of 280° C. or higher as the distillation property, a density of at least 0.90 g/cm3 at a temperature of 15° C. and a normal paraffin content of at least 3 parts by weight with respect to 100 parts by weight as the total weight of the stock oil composition; and having an aromatic component content of 30-85 parts by weight with respect to 100 parts by weight as the total weight of the stock oil composition and an aromatic component molecular weight of 250-1600 when the aromatic components and non-aromatic components are separated by elution chromatography.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: June 3, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tamotsu Tano, Takashi Oyama, Ippei Fujinaga, Masayuki Tasaki, Akio Sakamoto
  • Patent number: 8715484
    Abstract: The invention provides a stock oil composition for needle coke for a graphite electrode, the stock oil composition having a 10 vol % distillation temperature of 280° C. or higher as the distillation property, and when separated into the aromatic component and non-aromatic component by elution chromatography, having an aromatic component content of 30-80 wt % with respect to the total weight of the stock oil composition and an aromatic component molecular weight of 255-1300, as well as a non-aromatic component normal paraffin content of at least 5 parts by weight with respect to 100 parts by weight of the aromatic component.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: May 6, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tamotsu Tano, Takashi Oyama, Toshiyuki Oda, Ippei Fujinaga, Hiromitsu Hashisaka
  • Patent number: 8697025
    Abstract: In the raw coke composition of the invention, as the starting material for a negative electrode material of a lithium ion secondary battery, the ratio of the crystallite size Lc(002) and lattice constant co(002) (Lc(002)/co(002)) on the 002 plane is no greater than 180, and the ratio of the crystallite size La(110) and the lattice constant ao(110) (La(110)/ao(110)) on the 110 plane is no greater than 1500, as determined by X-ray diffraction upon graphitizing in an inert gas atmosphere at a temperature of 2800° C.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: April 15, 2014
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tamotsu Tano, Takashi Oyama, Hiromitsu Hashisaka, Akio Sakamoto
  • Publication number: 20140079622
    Abstract: To provide a negative electrode carbon material capable of suppressing capacity degradation which will occur due to repetition of a charge/discharge cycle, storage under a charged state, float charging, or the like. An artificial graphite for a negative electrode of a lithium secondary battery having a c-axis crystallite size L (112) of from 2.0 to 4.2 nm as calculated from a (112) diffraction line obtained by X-ray wide-angle diffractometry and having a half-value width ??G of from 15 to 19 cm?1 for a peak appearing in a wavelength region of from 1580 cm?1±100 cm?1 in the Raman spectroscopy using an argon ion laser light having a wavelength of 5145 angstrom.
    Type: Application
    Filed: November 25, 2013
    Publication date: March 20, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takashi Suzuki, Akio Sakamoto, Tamotsu Tano, Kazuhisa Nakanishi, Takashi Oyama
  • Publication number: 20140065056
    Abstract: A graphite material for a negative electrode is provided which can suppress capacity degradation due to repeated charging and discharging cycles, storage in a charged state, and floating charging. A method of manufacturing a graphite material for a negative electrode of a lithium ion secondary battery is provided in which an atomic ratio H/C of hydrogen atoms H and carbon atoms C in the raw coke composition is in a range of 0.30 to 0.50 and a microstrength of the raw coke composition is in a range of 7 wt % to 17 wt %.
    Type: Application
    Filed: April 19, 2013
    Publication date: March 6, 2014
    Inventors: Takashi SUZUKI, Noriyo ISHIMARU, Takashi OYAMA, Tamotsu TANO, Toshiyuki ODA, Ippei FUJINAGA, Tomoaki URAI, Seiji OKAZAKI, Katsuaki KURATA, Toshiaki HIRAMOTO, Akino SATO, Wataru ODA