Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–25 of 25 inventors

Rank Inventor Primary Company Patents
1 Katsuyoshi Kondoh Sumitomo Electric Industries 3
1 Akira Matsumori Otsuka Pharmaceutical Co. 3
1 Nobuhiro Suzuki Takeda Chemical Industries 3
#4 Toshio Ogihara Anges Mg 2
#4 Satoshi Inano Fujitsu Limited 2
#4 Yuichi Setsuhara Emd 2
#4 Satoshi Sasaki Murata Manufacturing Co. 2
#8 Eiji Ida Nippon Thompson Co. 1
#8 Ikuya Yano Sawai Pharmaceutical Co. 1
#8 Akitoshi Fukai 1
#8 Naoki Koshino Nippon Thompson Co. 1
#8 Tadayoshi Fujiwara Kobe Steel 1
#8 Hiroko Nakagawa Suntory Holdings Limited 1
#8 Kensaku Shimada Matsutani Chemical Industry Co. 1
#8 Matsuo Zama Ishida Co. 1
#8 Takashi Yozawa Sumitomo Electric Industries 1
#8 Yoshihito Okui 1
#8 Kousaku Okubo Santen Pharmaceutical Co. 1
#8 Mikio Kakui Mita Industrial Co. 1
#8 Tomoyoshi Suenobu Osaka University 1
#8 Iwao Fukuchi Hitachi Chemical Company 1
#8 Takahisa Jitsuno Japan Science And Technology Agency 1
#8 Katsuhisa Kitada Sumitomo Electric Industries 1
#8 Toshiyuki Suemitsu Sumitomo Electric Industries 1
#8 Tetsuo Tokita Samsung 1