Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Hideki Kajiwara Tokyo Electron Limited 2
2 Yasuhiko Itoh Sanyo Electric Co. 1
2 Masahiro Yoshikawa 1
2 Takaaki Hattori Japan Polyethylene 1