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Hiroyuki Umezawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric device with air cleaning function
    • Patent number 8,702,850
    • Issue date Apr 22, 2014
    • Sanyo Electric Co., Ltd.
    • Daisuke Suzuki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Water treatment apparatus
    • Patent number 8,366,888
    • Issue date Feb 5, 2013
    • Sanyo Electric Co., LTD
    • Yui Ogawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water treatment device
    • Patent number 8,062,485
    • Issue date Nov 22, 2011
    • Sanyo Electric Co., LTD
    • Yui Ogawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Air filtering apparatus having foreign material removing mechanism
    • Patent number 7,850,769
    • Issue date Dec 14, 2010
    • Sanyo Electric Co., Ltd.
    • Kazuo Takahashi
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Apparatus for treating water
    • Patent number 7,452,463
    • Issue date Nov 18, 2008
    • Sanyo Electric Co., LTD
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Coagulation treatment apparatus
    • Patent number 7,438,804
    • Issue date Oct 21, 2008
    • Sanyo Electric Co., LTD
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Wastewater treatment equipment
    • Patent number 7,396,458
    • Issue date Jul 8, 2008
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filtration apparatus
    • Patent number 7,381,323
    • Issue date Jun 3, 2008
    • Sanyo Aqua Technology Co., Ltd.
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Water treatment device
    • Patent number 7,300,592
    • Issue date Nov 27, 2007
    • Sanyo Electric Co., LTD
    • Masahiro Iseki
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water treatment device and water treatment method using the same
    • Patent number 7,157,012
    • Issue date Jan 2, 2007
    • Sanyo Electric Co., LTD
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Electrolyzing electrode and production method therefor and electrol...
    • Patent number 7,156,962
    • Issue date Jan 2, 2007
    • Sanyo Electric Co., LTD
    • Tomohito Koizumi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Filtering method of a colloidal solution
    • Patent number 7,014,770
    • Issue date Mar 21, 2006
    • Sanyo Electric Co., LTD
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filtration device
    • Patent number 6,830,679
    • Issue date Dec 14, 2004
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC DEVICE WITH AIR CLEANING FUNCTION
    • Publication number 20110179951
    • Publication date Jul 28, 2011
    • Daisuke Suzuki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    WATER TREATMENT APPARATUS
    • Publication number 20100108497
    • Publication date May 6, 2010
    • Yui OGAWA
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    WATER FEED DEVICE
    • Publication number 20090283464
    • Publication date Nov 19, 2009
    • Hana Oe
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    ION REMOVAL DEVICE AND METHOD FOR USING THE SAME
    • Publication number 20090188802
    • Publication date Jul 30, 2009
    • Yui Ogawa
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    HYDROFLUORIC ACID TREATMENT APPARATUS
    • Publication number 20090101560
    • Publication date Apr 23, 2009
    • SANYO ELECTRIC CO., LTD.
    • Yasuteru SUMIDA
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    WATER TREATMENT DEVICE AND WATER TREATMENT METHOD
    • Publication number 20090026088
    • Publication date Jan 29, 2009
    • Sanyo Electric Co., Ltd.
    • Yasuteru Sumida
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    METHOD OF FILTERING
    • Publication number 20080314832
    • Publication date Dec 25, 2008
    • SANYO ELECTRIC CO., LTD.
    • Hiroyuki UMEZAWA
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Water treatment device
    • Publication number 20080283391
    • Publication date Nov 20, 2008
    • SANYO ELECTRIC CO., LTD.
    • Yui Ogawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Device for treating fluorine-containing water
    • Publication number 20080217234
    • Publication date Sep 11, 2008
    • SANYO ELECTRIC CO., LTD.
    • Yasuteru Sumida
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Scale removal system
    • Publication number 20080093213
    • Publication date Apr 24, 2008
    • SANYO ELECTRIC CO., LTD.
    • Tetsuya Yamamoto
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    AIR FILTERING APPARATUS HAVING FOREIGN MATERIAL REMOVING MECHANISM
    • Publication number 20080017039
    • Publication date Jan 24, 2008
    • Sanyo Electric Co., Ltd.
    • Kazuo Takahashi
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Application

    Water treatment device
    • Publication number 20070034567
    • Publication date Feb 15, 2007
    • SANYO ELECTRIC CO., LTD.
    • Masahiro Iseki
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Filtration apparatus
    • Publication number 20060266686
    • Publication date Nov 30, 2006
    • Sanyo Aqua Technology Co., Ltd.
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filtration apparatus
    • Publication number 20060266687
    • Publication date Nov 30, 2006
    • Sanyo Aqua Technology Co., Ltd.
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filtration apparatus
    • Publication number 20060266685
    • Publication date Nov 30, 2006
    • Sanyo Aqua Technology Co., Ltd.
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Wastewater treatment equipment
    • Publication number 20060231472
    • Publication date Oct 19, 2006
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Treatment apparatus and method of treating water to be treated usin...
    • Publication number 20050269271
    • Publication date Dec 8, 2005
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    High-concentration particle concentrate, powder, preparing method o...
    • Publication number 20050215412
    • Publication date Sep 29, 2005
    • Takashi Nakamura
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Coagulation treatment apparatus, coagulation treatment method, coag...
    • Publication number 20050115908
    • Publication date Jun 2, 2005
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Filtration apparatus
    • Publication number 20040262209
    • Publication date Dec 30, 2004
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Water treatment device and water treatment method using the same
    • Publication number 20040245184
    • Publication date Dec 9, 2004
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Filtering method of a colloidal solution
    • Publication number 20040016705
    • Publication date Jan 29, 2004
    • Sanyo Electric Co., Ltd.
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Electrolyzing electrode and production method therefor and electrol...
    • Publication number 20040011665
    • Publication date Jan 22, 2004
    • Tomohito Koizumi
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    Method of filtering
    • Publication number 20030095894
    • Publication date May 22, 2003
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Method of filtering
    • Publication number 20030094426
    • Publication date May 22, 2003
    • Hiroyuki Umezawa
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filtration device
    • Publication number 20030089647
    • Publication date May 15, 2003
    • Motoyuki Tsuihiji
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Sterilizing method and electrolyzed water producing apparatus
    • Publication number 20030024828
    • Publication date Feb 6, 2003
    • Yasuhito Kondo
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE