Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–8 of 8 inventors

Rank Inventor Primary Company Patents
1 Hirofumi Kitayama Tokyo Electron Limited 1
1 Izumi Araki Toshiba Tec Kabushiki Kaisha 1
1 Nozomi Ohtsubo Asahi Glass Co. 1
1 Shigeyuki Seto Asahi Glass Co. 1
1 Keitaro Suzuki Nissan Chemical Industries 1
1 Kenichi TAKIGAWA Nhk Spring Co. 1
1 Akira Kawana Makino Milling Machine Co. 1
1 Teruji Nagaoka Asahi Glass Co. 1