DW

Dai Watanabe

DC Dainichiseika Color & Chemicals Mfg. Co.: 2 patents #125 of 376Top 35%
Overall (All Time): #2,136,480 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7553365 Water-based pigment dispersions, inkjet recording inks, and color filters Shigeru Sakamoto, Yoshimasa Tsuchiya, Masanori Takakamo, Tohru Hosoda, Akio Yoshida +4 more 2009-06-30
7361698 Water-based pigment inks, image recording method, and image recording system Michiei Nakamura, Naoyuki Sakai, Hiroyuki Shimanaka, Kenji Ogawa, Yoshiyuki Zama +4 more 2008-04-22