Inventor
KUWABARA SEIJI
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KUWABARA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
6 patentsUS12326587B2Jun 10, 2025
Optical element
CANON KK0 citations59
US7573562B2Aug 11, 2009
Reflective optical element and exposure apparatus
CANON KK2 citations59
US7492510B2Feb 17, 2009
Optical element having antireflection film, and exposure apparatus
CANON KK2 citations59
US12515460B2Jan 6, 2026
Polygon mirror
CANON KK0 citations56
US12372699B2Jul 29, 2025
Optical component and optical apparatus
CANON KK0 citations50
US11796936B2Oct 24, 2023
Light scanning apparatus and image forming apparatus
CANON KK0 citations50