KH

Koshi Hatakeyama

Canon: 2 patents #488 of 2,436Top 25%
📍 Tokyo, MO: #25 of 78 inventorsTop 35%
Overall (2005): #46,512 of 245,428Top 20%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6975385 Projection optical system and exposure apparatus Yumiko Ohsaki, Toshihiro Sunaga, Takahiro Sasaki 2005-12-13
6922291 Catoptric projection optical system and exposure apparatus Toshihiro Sunaga, Takahiro Sasaki 2005-07-26