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USPTO Patent Rankings Data through Sept 30, 2025
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Gaku Takeuchi — 11 Patents

TOTopcon: 11 patents #80 of 684Top 15%
Oshima, JP: #91 of 1,090 inventorsTop 9%
Overall (All Time): #450,873 of 4,157,543Top 15%
11 Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11341673 Infrared image processing method, infrared image processing device, and infrared image processing program 2022-05-24
7566129 Ophthalmologic apparatus Masayuki Hideshima, Kazuo Nunokawa, Makoto Fujino, Yoichiro Iwa, Akemi Miwa +2 more 2009-07-28
7540614 Ophthalmologic apparatus Hiroyuki Kawashima, Takao Tanabe, Noriyasu Kiryu 2009-06-02
7533990 Ophthalmologic apparatus Masayuki Hideshima, Kazuo Nunokawa, Makoto Fujino, Yoichiro Iwa, Akemi Miwa +2 more 2009-05-19
7524062 Ophthalmologic apparatus Yoichiro Iwa, Takao Tanabe 2009-04-28
7261416 Eye's optical characteristics measuring system Kouji Nishio, Masahiro Shibutani, Katsuhiko Kobayashi 2007-08-28
7011411 Eye's optical characteristic measuring system Masahiro Shibutani, Katsuhiko Kobayashi, Yumi Kubotera 2006-03-14
6824269 Eye's optical characteristic measuring system Katsuhiko Kobayashi, Masahiro Shibutani 2004-11-30
6789899 Eye's optical characteristic measuring system Katsuhiko Kobayashi, Masahiro Shibutani 2004-09-14
6676258 Eye characteristic measurement apparatus with speckle noise reduction Naoki Nakazawa, Masahiro Shibutani, Katsuhiko Kobayashi 2004-01-13
6623117 Eye's optical characteristic measuring system Masahiro Shibutani, Katsuhiko Kobayashi 2003-09-23