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Masakatsu Arai

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  • Ibaraki-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ink cartridge
    • Patent number 9,010,913
    • Issue date Apr 21, 2015
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Non-aqueous inkjet ink
    • Patent number 8,585,815
    • Issue date Nov 19, 2013
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Non-aqueous pigment ink
    • Patent number 8,414,696
    • Issue date Apr 9, 2013
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Inkjet ink
    • Patent number 7,799,123
    • Issue date Sep 21, 2010
    • Riso Kagaku Corporation
    • Toshihiro Endo
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Method and system for calculating ink residue and ink container
    • Patent number 7,344,213
    • Issue date Mar 18, 2008
    • Riso Kagaku Corporation
    • Manabu Iwamoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink container
    • Patent number 7,168,797
    • Issue date Jan 30, 2007
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink container
    • Patent number D524366
    • Issue date Jul 4, 2006
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • D18 - Printing and office machinery
  • Information Patent Grant

    Stencil printing ink container, stencil printing ink cartridge, met...
    • Patent number 7,040,223
    • Issue date May 9, 2006
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Container
    • Patent number 6,899,028
    • Issue date May 31, 2005
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Ink supply system and ink supply method for stencil printer and ink...
    • Patent number 6,854,837
    • Issue date Feb 15, 2005
    • Riso Kagaku Corporation
    • Hirohide Hashimoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Stencil printing ink container
    • Patent number 6,810,803
    • Issue date Nov 2, 2004
    • Riso Kagaku Corporation
    • Hirohide Hashimoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    OIL-BASED INKJET INK
    • Publication number 20120210908
    • Publication date Aug 23, 2012
    • Riso Kagaku Corporation
    • Toshihiro Endo
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    NON-AQUEOUS INKJET INK
    • Publication number 20120048141
    • Publication date Mar 1, 2012
    • Riso Kagaku Corporation
    • Masakatsu ARAI
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    NON-AQUEOUS PIGMENT INK
    • Publication number 20110045257
    • Publication date Feb 24, 2011
    • Riso Kagaku Corporation
    • Masakatsu ARAI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    Inkjet ink
    • Publication number 20070101901
    • Publication date May 10, 2007
    • Riso Kagaku Corporation
    • Toshihiro Endo
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Method and system for calculating ink residue and ink container
    • Publication number 20060109289
    • Publication date May 25, 2006
    • Manabu Iwamoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Ink container
    • Publication number 20040165046
    • Publication date Aug 26, 2004
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Stencil printing ink container, stencil printing ink cartridge, met...
    • Publication number 20040139868
    • Publication date Jul 22, 2004
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Ink supply system and ink supply method for stencil printer and ink...
    • Publication number 20030227523
    • Publication date Dec 11, 2003
    • Riso Kagaku Corporation
    • Hirohide Hashimoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Stencil printing ink container
    • Publication number 20030209157
    • Publication date Nov 13, 2003
    • Riso Kagaku Corporation
    • Hirohide Hashimoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Container
    • Publication number 20030101883
    • Publication date Jun 5, 2003
    • Riso Kagaku Corporation
    • Masakatsu Arai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS