Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Hirohito Kai — 1 Patent in 2021

Canon: 1 patents #1,677 of 3,943Top 45%
Overall (2021): #434,419 of 548,734Top 80%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10979619 Image capturing apparatus capable of highly-accurate autofocus calibration and control method thereof, and storage medium Naoki Watanabe, Takuya Izumi 2021-04-13