Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2018, with 26,592 patents from 13,560 inventors. Leading employers of inventors based in Tokyo, JP include Ricoh Company, Hitachi High-Technologies, Basf Se.

Showing 13,401–13,450 of 13,560 inventors

Rank Inventor Primary Company Patents
#5246 Naoki Takai Ricoh Company 1
#5246 Sakuichiro Adachi Hitachi High-Technologies 1
#5246 Toshiyuki YOKOI Basf Se 1
#5246 Hiroyasu Sano Mitsubishi Electric 1
#5246 Hiroaki TOYOSHIMA Denka Company Limited 1
#5246 Makoto Nogami Hitachi High-Technologies 1
#5246 Kotaro Kaneko Miyoshi Oil & Fat Co. 1
#5246 Toshio Nishizawa Taiyo Yuden Co. 1
#5246 Yo Kitabatake Mitsubishi Electric 1
#5246 Kazuhiro Sakakibara Toyo Tire 1
#5246 Asami Yamagishi Sony 1
#5246 Keiji Nomaru Disco 1
#5246 Takumi Ishii Canon 1
#5246 Masato Sugimoto Sumitomo Electric Industries 1
#5246 Tomoyuki Umetsu Sony 1
#5246 Shigeki MUKAI Subaru 1
#5246 Masayuki Hiramaru Honda Motor Co. 1
#5246 Toshihiro Aiba Neturen Co. 1
#5246 Hiroki Sakamoto Nissan Motor Co. 1
#5246 Shingo Iwami Canon 1
#5246 Akira Kikuchi Hitachi 1
#5246 Kohei TSUJIMOTO Disco 1
#5246 Susumu Yokoo Disco 1
#5246 Azusa Suzuki Dai Nippon Printing Co. 1
#5246 Yohei Sawada Fujikin Incorporated 1
#5246 Rie Horiuchi 1
#5246 Kenichi Tajima Mitsubishi Electric 1
#5246 Gou Fukano Kabushiki Kaisha Toshiba 1
#5246 Hideaki Fujita Sharp Kabushiki Kaisha 1
#5246 Katsuyuki Kamei Mitsubishi Electric 1
#5246 Takeo Sakairi Mitsubishi Electric 1
#5246 Yoshitaka Seki Honda Motor Co. 1
#5246 Kyoko Yamamoto Sumitomo Chemical 1
#5246 Masatoshi Kitagami Fuji Manufacturing Co. 1
#5246 Hiroyasu Aruga Mitsubishi Electric 1
#5246 Takuma Hayakawa Tdk 1
#5246 Tomohiro Morimura Hitachi 1
#5246 Yoshiyuki Michiaki Dowa Electronics Materials Co. 1
#5246 Yasutaka KONISHI Mitsubishi Electric 1
#5246 Michizo Yamanaka The Yoshida Dental Mfg. Co. 1
#5246 Kiyotaka HIRADATE Hitachi Industrial Products 1
#5246 Yohei TANIKAWA Olympus 1
#5246 Shohei Konno Sony 1
#5246 Mariko Okude Hitachi 1
#5246 Hideki Akashika Rakuten Group 1
#5246 Kazutoshi Kitagoh Toshiba Mitsubishi-Electric Industrial Systems 1
#5246 Yuji Mihara Fujitsu Limited 1
#5246 Yusuke Kubota Semiconductor Energy Laboratory 1
#5246 Hironori Horie Globeride 1
#5246 Chihiro NAKASHIMA Hitachi 1