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Yuko Yakushigawa

Canon: 7 patents #7,830 of 19,416Top 45%
Overall (All Time): #756,012 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6866380 Ink set, ink jet recording method, recording unit, ink cartridge and ink jet recording apparatus Yoshihisa Takizawa, Kumiko Mafune, Hisashi Teraoka, Tsuyoshi Kanke 2005-03-15
6843839 Ink, recording method, recording unit, ink cartridge, ink set, and recording apparatus Tsuyoshi Kanke, Takao Yamamoto, Kumiko Mafune, Hisashi Teraoka 2005-01-18
6702882 Ink set, ink jet recording method, recording unit, ink cartridge and ink jet recording apparatus Yoshihisa Takizawa, Kumiko Mafune, Hisashi Teraoka, Tsuyoshi Kanke 2004-03-09
6530656 Color ink-jet recording ink set, ink-jet recording method, recording unit, ink-cartridge, ink-jet recording apparatus and bleeding reduction method Hisashi Teraoka, Yoshihisa Takizawa, Yoichi Takada 2003-03-11
6454403 Ink set for color ink-jet recording, and recording method, recording apparatus, ink cartridge, recording unit and reduction of bleeding, employing the ink set Yoichi Takada, Yoshihisa Takizawa, Hisashi Teraoka 2002-09-24
6332919 Ink, ink set, ink cartridge, recording unit, image recording apparatus and image recording method Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Shinya Mishina, Mikio Sanada +1 more 2001-12-25
6280513 Ink, ink set, ink cartridge, recording unit, image recording apparatus and image recording method Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Shinya Mishina, Mikio Sanada +1 more 2001-08-28