Patents by Inventor Kazuyoshi Aoki

Kazuyoshi Aoki 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: 9487484
    Abstract: Provided is a stilbazolium derivative represented by the general formula (I): wherein R1, R2, R3, and R4 independently represent hydrogen, halogen, alkyl, hydroxyl, carboxyl, or amino; R5 represents hydrogen or alkyl; X represents oxygen or NR6 (R6 is hydrogen or alkyl); and Y? represents an anion. In the general formula (I), some or all of hydrogens maybe deuterium.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 8, 2016
    Assignees: Arkray, Inc., National University Corporation Yamagata University
    Inventors: Kazuyoshi Aoki, Shuji Okada
  • Publication number: 20160016905
    Abstract: Provided is a stilbazolium derivative represented by the general formula (I): wherein R1, R2, R3, and R4 independently represent hydrogen, halogen, alkyl, hydroxyl, carboxyl, or amino; R5 represents hydrogen or alkyl; X represents oxygen or NR6 (R6 is hydrogen or alkyl); and Y? represents an anion. In the general formula (I), some or all of hydrogens maybe deuterium.
    Type: Application
    Filed: June 23, 2015
    Publication date: January 21, 2016
    Inventors: Kazuyoshi Aoki, Shuji Okada
  • Patent number: 8678356
    Abstract: There is provided a microbubble generating method including: supplying a gas to a rotator 2 while rotating the rotator 2 in a liquid; injecting the gas into the liquid from bubble injection holes formed in the surface of the rotator 2; and applying a shear force, produced by the relative movement between the liquid and the rotator, to gas bubbles present on and in the vicinity of the surface of the rotator 2 to generate microbubbles. The microbubble generating method can easily generate a large amount of microbubbles without forcibly creating a swirling flow of fluid.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: March 25, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Chikako Iwaki, Kazuyoshi Aoki, Hideo Komita
  • Publication number: 20140034560
    Abstract: An aggregating agent injector (12) employs water currents generated by a raw water pump (10) to have flowing raw water undergo injection of an aggregating agent for aggregation of solids in raw water to form flocs, a first stirrer (13) works, as raw water inflows with the aggregating agent injected therein, for use of water currents thereof to stir inflowing raw water, and cause to outflow, a flocculation vessel (14) works, as stirred raw water inflows, to have inflowing raw water reside therein to form flocs, and cause to outflow, by using water currents thereof and a centrifugal separator (15) works, as raw water inflows with flocs therein, for use of water currents thereof to have inflowing raw water swirl, effecting centrifugal separation thereof into flocs as solids and processed water.
    Type: Application
    Filed: August 28, 2013
    Publication date: February 6, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Mii Fukuda, Takashi Menju, Yasushi Yamamoto, Tokusuke Hayami, Taizo Uchimura, Kazuyoshi Aoki, Ichiro Yamanashi, Kazuhiko Noda
  • Publication number: 20140037038
    Abstract: A pressurized water reactor comprises a reactor pressure vessel (11), a cylindrical core barrel (13), a core disposed in the core barrel (13), a lower core support plate (17), and a cylindrical porous plate (31). The core barrel (13) is provided in the reactor pressure vessel (11) and forms, with the inner side surface of the reactor pressure vessel (11), an annular downcomer (14) therebetween. The lower core support plate (17) is provided under the core so as to extend horizontally, and a large number of upward flow holes (80) are formed therein. The cylindrical porous plate (31) demarcates a lower plenum (16) and a bottom part of the downcomer (14), and a plurality of inward flow holes (83) that serve as flow paths from the bottom part of the downcomer (14) to the lower plenum (16) are formed therein. The inward flow holes (83) are inclined upward to the lower plenum (16) on the side on which the inward flow holes are open to the lower plenum (16).
    Type: Application
    Filed: January 18, 2012
    Publication date: February 6, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Ken Uchida, Ken Okuda, Kazuyoshi Aoki, Hiroshi Ikeda, Chikako Iwaki, Tetsuzo Yamamoto
  • Publication number: 20130272472
    Abstract: According to an embodiment, a molten-core retention structure comprises the following inside a reactor vessel that contains a reactor core: a bottom support plate, in which vertically penetrating flow holes are formed, that is provided beneath the core and supports the core; a bottom support plate support that is affixed to the reactor vessel and supports the bottom support plate; a thermally insulating spacer; a reticulated heat path that is affixed to the bottom support plate support with the thermally insulating spacer interposed therebetween and contacts the bottom support plate; and vertical heat paths that extend downwards from the reticulated heat path. The reticulated heat path and the vertical heat paths have higher coefficients of thermal conductivity than the thermally insulating spacer.
    Type: Application
    Filed: October 9, 2012
    Publication date: October 17, 2013
    Inventors: Kazuyoshi AOKI, Mika Tahara, Ken Okuda, Yasunobu Fujiki, Hisaki Sato
  • Publication number: 20130028366
    Abstract: According to an embodiment, a steam separator is provided with a barrel, a swirler, a pick-off ring, a steam collecting pipe and transverse pipes. A two-phase flow of steam and water ascends inside the barrel. The two-phase flow has a swirl force imparted by the swirler. Flow near the inner surface of the barrel is separated by the pick-off ring, etc. from flow near the center of the barrel and is guided so as to descend along the outer surface of the barrel. A major part of the flow near the center of the barrel is separated from the outside flow by the steam collecting pipe and guided to the outside of the barrel through the transverse pipes.
    Type: Application
    Filed: October 2, 2012
    Publication date: January 31, 2013
    Inventors: Hiroshi Ikeda, Chikako Iwaki, Hisaki Sato, Kazuyoshi Aoki
  • Patent number: 8252179
    Abstract: A liquid cyclone is configured for inflowing raw water containing impurities as targets of collection to be forced to swirl inside to spin down impurities contained in raw water, an inflow pipe is connected with an upper portion of the liquid cyclone to supply the liquid cyclone with raw water, and configured for supplied raw water to be forced to swirl inside the liquid cyclone, a connecting portion is connected with a lower portion of the liquid cyclone, and configured with a discharge port to discharge spun down impurities from the liquid cyclone, an impurity collector is connected to the liquid cyclone with the connecting portion in between, and configured to collect impurities discharged from the liquid cyclone, an obstacle is disposed in or near the discharge port, , and configured to prevent impurities collected in the impurity collector from backing up into the liquid cyclone, and an outflow pipe is connected with a top portion of the liquid cyclone, and configured for raw water having got rid of impu
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: August 28, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuyoshi Aoki, Yasushi Yamamoto, Takashi Menju, Mii Fukuda, Atsushi Yukawa
  • Patent number: 8211297
    Abstract: An activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cyclone is adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water from the liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: July 3, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mii Fukuda, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Ryoichi Arimura, Norimitsu Abe, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
  • Publication number: 20100258509
    Abstract: There is provided a microbubble generating method including: supplying a gas to a rotator 2 while rotating the rotator 2 in a liquid; injecting the gas into the liquid from bubble injection holes formed in the surface of the rotator 2; and applying a shear force, produced by the relative movement between the liquid and the rotator, to gas bubbles present on and in the vicinity of the surface of the rotator 2 to generate microbubbles. The microbubble generating method can easily generate a large amount of microbubbles without forcibly creating a swirling flow of fluid.
    Type: Application
    Filed: May 22, 2008
    Publication date: October 14, 2010
    Inventors: Chikako Iwaki, Kazuyoshi Aoki, Hideo Komita
  • Publication number: 20100239061
    Abstract: A water leak detection floor transversally suspended by a pedestal side wall is installed between a reactor pressure vessel and a molten core holding apparatus. If a water leak occurs at the reactor pressure vessel, the water leak detection floor receives and detects the leak water. In a core meltdown accident, corium melts and penetrates the water leak detection floor and deposits on the molten core holding apparatus.
    Type: Application
    Filed: June 1, 2010
    Publication date: September 23, 2010
    Inventors: Kazuyoshi Aoki, Tomohisa Kurita, Toshimi Tobimatsu, Shinji Kubo, Mika Tahara, Ryoichi Hamazaki, Makoto Akinaga
  • Publication number: 20100230331
    Abstract: An aggregating agent injector (13) injects into raw water an aggregating agent for aggregating solids in raw water, a first aggregation aid injector (16) injects into raw water with the aggregating agent injected therein an aggregation aid for hardening or consolidating flocs formed by the aggregating agent, and a centrifugal separator (18) has a flocculator portion for causing raw water with the aggregation aid injected therein to whirl therein to flocculate solids in raw water, and a solid collector portion for causing raw water to swirl at higher speeds than in the flocculator portion to separate flocs from raw water.
    Type: Application
    Filed: March 4, 2010
    Publication date: September 16, 2010
    Inventors: Mii Fukuda, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Ichiro Yamanashi, Tokusuke Hayami, Kazuhiko Noda
  • Publication number: 20100206786
    Abstract: An aggregating agent injector (12) employs water currents generated by a raw water pump (10) to have flowing raw water undergo injection of an aggregating agent for aggregation of solids in raw water to form flocs, a first stirrer (13) works, as raw water inflows with the aggregating agent injected therein, for use of water currents thereof to stir inflowing raw water, and cause to outflow, a flocculation vessel (14) works, as stirred raw water inflows, to have inflowing raw water reside therein to form flocs, and cause to outflow, by using water currents thereof, and a centrifugal separator (15) works, as raw water inflows with flocs therein, for use of water currents thereof to have inflowing raw water swirl, effecting centrifugal separation thereof into flocs as solids and processed water.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 19, 2010
    Inventors: Mii FUKUDA, Takashi MENJU, Yasushi YAMAMOTO, Tokusuke HAYAMI, Taizo UCHIMURA, Kazuyoshi AOKI, Ichiro YAMANASHI, Kazuhiko NODA
  • Publication number: 20100069217
    Abstract: A liquid cyclone is configured for inflowing raw water containing impurities as targets of collection to be forced to swirl inside to spin down impurities contained in raw water, an inflow pipe is connected with an upper portion of the liquid cyclone to supply the liquid cyclone with raw water, and configured for supplied raw water to be forced to swirl inside the liquid cyclone, a connecting portion is connected with a lower portion of the liquid cyclone, and configured with a discharge port to discharge spun down impurities from the liquid cyclone, an impurity collector is connected to the liquid cyclone with the connecting portion in between, and configured to collect impurities discharged from the liquid cyclone, an obstacle is disposed in or near the discharge port, and cold to prevent impurities collected in the impurity collector from backing up into the liquid cyclone, and an outflow pipe is connected with a top portion of the liquid cyclone, and configured for raw water having got rid of impurities t
    Type: Application
    Filed: August 13, 2009
    Publication date: March 18, 2010
    Inventors: Kazuyoshi Aoki, Yasushi Yamamoto, Takashi Menju, Mii Fukuda, Atsushi Yukawa
  • Publication number: 20100051248
    Abstract: A stacked plate type heat exchanger having compactness and providing a heat exchanging rate per unit volume of 10 MWt/m3 or more is used under conditions of high temperature and high pressure of 4 to 7 MPa of pressure difference between a primary fluid and a secondary fluid, and 500° C. to 900° C. of maximum operating temperature. A thickness of metal plate is set at 0.3 times or more of an equivalent diameter of a flow path, and a pitch between flow paths along a width direction of the metal plate is set at 0.5 times or more of the equivalent diameter of the flow path.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 4, 2010
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takanari Inatomi, Hiroshi Nakamura, Kazuyoshi Aoki, Shigeki Maruyama
  • Publication number: 20100044285
    Abstract: An activated carbon adder adds activated carbon to raw water before flocculating sedimentation, to adsorb suspended matter contained in raw water, a liquid cyclone is adapted to separate activated carbon with suspended matter adsorbed thereon, from raw water containing activated carbon, an inflow line is connected with the liquid cyclone so as to cause raw water containing activated carbon before flocculating sedimentation to flow into the liquid cyclone and swirl therein, an activated carbon discharge line discharges activated carbon spun down out of raw water containing activated carbon in the liquid cyclone, from the liquid cyclone, and a pretreated water discharge line discharges raw water having got rid of activated carbon as pretreated water from the liquid cyclone, allowing for a reduced amount of chemicals to be used, with production of a reduced amount of sludge.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 25, 2010
    Inventors: Mii FUKUDA, Takashi Menju, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Ryoichi Arimura, Norimitsu Abe, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
  • Publication number: 20100044286
    Abstract: A water-purification pretreatment system removes raw water of suspended solids heavier in specific gravity than water before a water-purification treatment of raw water taken from a water source and the system includes a liquid cyclone configured for raw water to inflow thereto and to be swirled inside thereof to separate from raw water suspended solids heavier in specific gravity tan water, an inflow line connected with the liquid cyclone for raw water to be supplied to the liquid cyclone and configured for raw water being supplied to swirl inside the liquid cyclone, and an outflow line configured for raw water having suspended solids separated therefrom to outflow as pretreated water from the liquid cyclone, allowing for a reduced load on a treatment of solid suspended solids as a water treatment for water purification plants.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 25, 2010
    Inventors: Takashi Menju, Mii Fukuda, Yasushi Yamamoto, Kazuyoshi Aoki, Takeshi Matsushiro, Futoshi Kurokawa, Atsushi Yukawa, Tokusuke Hayami
  • Publication number: 20070076835
    Abstract: A nuclear reactor containment vessel cooling equipment has: a dry well cooler casing in a containment vessel, having an opening at its top and a shutter at its lower part; a heat transfer tube arranged at an upper part in the dry well cooler casing; a forced cooling water circulation system for feeding cooling water from outside of the containment vessel into the heat transfer tube by a pump; a blower for mobilizing gas around the heat transfer tube; an external pool container arranged outside the containment vessel and above the heat transfer tube and containing cooling water; and a gravity-driven cooling system to supply cooling water in the external pool container into the heat transfer tube, utilizing gravity.
    Type: Application
    Filed: August 16, 2006
    Publication date: April 5, 2007
    Inventors: Toshimi Tobimatsu, Chikako Iwaki, Kazuyoshi Aoki, Seiichi Yokobori, Yoshihiro Kojima, Makoto Akinaga, Tadashi Narabayashi
  • Patent number: 5631660
    Abstract: An antenna module capable of finely adjusting the resonant frequency and having an antenna element exclusively used for radio transmission and reception to provide a broad frequency band characteristic. This antenna module is composed of a dielectric substrate molded in a predetermined shape, a grounding conductor in the form of sheet provided on one surface of the dielectric substrate, and antenna element conductor in the form of sheet provided on the opposite surface to the above one surface and having end portion being almost V-shaped end folded, and an adjusting member inserted into the almost V-shaped folded end portion.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Fujitsu Limited
    Inventors: Yutaka Higashiguchi, Mitsuo Inagaki, Takeyasu Maeda, Kazuyoshi Aoki, Kohichi Kamei, Toshiaki Amano