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

Takeshi Kawashima

Canon: 1 patents #1,618 of 3,589Top 50%
Overall (2018): #221,884 of 503,207Top 45%
1 Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9864106 Semiconductor DBR, semiconductor light-emitting device, solid-state laser, photoacoustic apparatus, image-forming apparatus, and method for manufacturing semiconductor DBR 2018-01-09