HN

Hirohisa Nakao

TO Topcon: 2 patents #309 of 684Top 50%
KC Koyo Seiko Co.: 1 patents #363 of 749Top 50%
Overall (All Time): #1,602,706 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6695450 Ophthalmic characteristics measuring apparatus Yoko Hirohara 2004-02-24
6234632 Cornea shape measuring apparatus 2001-05-22
5190119 Hydraulic power steering device responsive to speed of vehicle Keiji Nomura, Katsutoshi Nishimura, Kazunori Okamoto, Tomoharu Horiuchi, Masayuki Watanabe +1 more 1993-03-02