Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
YH

Yoko Hirohara

TOTopcon: 31 patents #20 of 684Top 3%
OUOsaka University: 1 patents #681 of 1,984Top 35%
Overall (All Time): #118,104 of 4,157,543Top 3%
31 Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
6695450 Ophthalmic characteristics measuring apparatus Hirohisa Nakao 2004-02-24
6685320 Opthalmic characteristic measuring apparatus Toshifumi Mihashi, Koki Harumoto 2004-02-03
6629761 Eye characteristic measuring apparatus Toshifumi Mihashi, Yasufumi Fukuma 2003-10-07
6536900 Eye characteristic measuring apparatus Toshifumi Mihashi 2003-03-25
6525883 Optical characteristic measuring instrument Naoki Nakazawa, Toshifumi Mihashi 2003-02-25
6354705 Anterior segment photographing apparatus for producing images of a section of the anterior segment of the eye to be examined by using slit light beam Toshifumi Mihashi 2002-03-12