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Hirofumi Iinuma

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  • Oizumi-machi, JP
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Patents Grantslast 30 patents

  • 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

    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

    Method of fabricating a semiconductor device
    • Patent number 6,890,242
    • Issue date May 10, 2005
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • 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
  • Information Patent Grant

    Method of fabricating a semiconductor device
    • Patent number 6,746,309
    • Issue date Jun 8, 2004
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method of filtering a fluid
    • Patent number 6,461,524
    • Issue date Oct 8, 2002
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method of filtering a fluid
    • Patent number 6,428,709
    • Issue date Aug 6, 2002
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Apparatus for filtering a fluid
    • Patent number 6,406,622
    • Issue date Jun 18, 2002
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method of fabricating a semiconductor device
    • Patent number 6,299,513
    • Issue date Oct 9, 2001
    • Sanyo Electric Co., LTD
    • Motoyuki Tsuihiji
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Heat exchanger
    • Patent number 4,909,319
    • Issue date Mar 20, 1990
    • Sanyo Electric Co., Ltd.
    • Atuyumi Ishikawa
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • 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 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

    Method of fabricating a semiconductor device
    • Publication number 20040161935
    • Publication date Aug 19, 2004
    • Sanyo Electric Co., Ltd., a Japan Corporation
    • Motoyuki Tsuihiji
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • 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

    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

    Method of fabricating a semiconductor device
    • Publication number 20020006769
    • Publication date Jan 17, 2002
    • Motoyuki Tsuihiji
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL