YK

Yasuyuki Koyagi

DC Dainippon Screen Mfg. Co.: 4 patents #193 of 977Top 20%
Overall (All Time): #1,028,207 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7568904 Stereolithography apparatus Hiroko Shimozuma, Hiroshi Yaze, Ichiro Miyaki 2009-08-04
7083405 Photo-fabrication apparatus Hiroko Shimozuma 2006-08-01
6662139 Drawing apparatus and method of attaching balance weights Masao Inoue, Toru Kawada, Toshio Tamura, Junichi Nagamine 2003-12-09
6505142 Drawing apparatus and method of attaching balance weights Masao Inoue, Toru Kawada, Toshio Tamura, Junichi Nagamine 2003-01-07
4971443 Optical position detecting method and apparatus therefor 1990-11-20