Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–24 of 24 inventors

Rank Inventor Primary Company Patents
1 Yuya Takamori Ichikawa Co. 3
1 Kenichiro Yoshii Kabushiki Kaisha Toshiba 3
1 Hirofumi Murakami Sony 3
1 Yutaka Asanuma Kabushiki Kaisha Toshiba 3
#5 Koichi Harada Fujikura 2
#5 Yasuhiko Arakawa The University Of Tokyo 2
#5 Katsuyuki Naito Kabushiki Kaisha Toshiba 2
#8 Ryo Umehara Ichikawa Co. 1
#8 Ryozo Nagai Nissan Chemical Industries 1
#8 Hosei Nakahira Nikon 1
#8 Ai Tamura Ichikawa Co. 1
#8 Takeshi Iwatsubo Eisai R&D Management Co. 1
#8 Ryuji Hamamoto Oncotherapy Science 1
#8 Kimiko Makino Tokyo University Of Science Educational Foundation Administrative Organization 1
#8 Isomaro Yamaguchi National University Corporation Nagoya University 1
#8 Kazuhito Hashimoto Unknown 1
#8 Mitsuhiko Kitagawa Kabushiki Kaisha Toshiba 1
#8 Akira SUGIYAMA Savid Therapeutics 1
#8 Tetsuo Ohbayashi Fujitsu Limited 1
#8 Masatoshi Nakajima National University Corporation Nagoya University 1
#8 Toshifumi Irisawa Kabushiki Kaisha Toshiba 1
#8 Akari Shimizu Clarion Co. 1
#8 Misa Ashizawa Chuo University 1
#8 Masaki Ihara Ehs Lens Philippines 1