Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Tokyo, JP ranks #1 worldwide for total patents filed in 2019, with 30,927 patents from 15,298 inventors. Leading employers of inventors based in Tokyo, JP include Denki Kogyo Company, Limited, Toyo Aluminium K.K., Bridgestone.

Showing 14,701–14,750 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Shuji Masubuchi Denki Kogyo Company, Limited 1
#6064 Takayuki Sakanoue Denki Kogyo Company, Limited 1
#6064 Kenji Kihara Toyo Aluminium K.K. 1
#6064 Mayo Watanabe Toyo Aluminium K.K. 1
#6064 Yasushi Kanzaki Toyo Aluminium K.K. 1
#6064 Shunsuke HIRAKI Bridgestone 1
#6064 Norimitsu Kameya Ihi 1
#6064 Masahi Shimoyama Ebara 1
#6064 Shigeki Matsunaga Kyushu University, National University 1
#6064 Toru Hiraga Yonex Co. 1
#6064 Shuhei Takemura Nippon Suisan Kaisha 1
#6064 Syoichiro Kaihara Ihi 1
#6064 Tohru Kodaira Ntt Advanced Technology 1
#6064 Kohei KIGAWA Oki Data 1
#6064 Takuya Kaminaga Disco 1
#6064 Hidehiro Tazawa Shinkawa 1
#6064 Shimpei AMASAKI Hitachi 1
#6064 Tomomi Mochizuki Mitsubishi Electric 1
#6064 Katsumi Murayama Riken 1
#6064 Yuzuru Okuyama Kaneka 1
#6064 Yoshikazu Okajima Platinum Pen Co. 1
#6064 Takusho Nakamura Thk Co. 1
#6064 Tohru Nakagawa Mayo Foundation 1
#6064 Takeshi Itome Renesas Electronics 1
#6064 Mamio Hokazono Nec 1
#6064 Susumu Okuyama Nec 1
#6064 Mltsuteru Yoshida NTT 1
#6064 Koumei TAKEDA Asahi Kasei Kabushiki Kaisha 1
#6064 Tomomi Ikegami Kabushiki Kaisha Toshiba 1
#6064 Takashi Imaida Mitsubishi Electric 1
#6064 Hirotomo Setaka Ihi 1
#6064 Hirotaka Tanimura Mitsubishi Heavy Industries Thermal Systems 1
#6064 Yugo Tashiro Harada Industry Co. 1
#6064 Yuya UCHIYAMA 1
#6064 Kengo Murai Jfe Engineering 1
#6064 Manami Ando Mitsubishi Electric 1
#6064 Sumio Sugiyama Yazaki 1
#6064 Akira Hashiguchi Panasonic 1
#6064 Yusuke Daimon Hitachi 1
#6064 Hironobu Kubo Teijin Pharma Limited 1
#6064 Hiroshi Kanatani Teijin Pharma Limited 1
#6064 Masato Takao Two Cells Co. 1
#6064 Honda Kazuo Tms Co. 1
#6064 Masashi Kusano Yahoo Japan 1
#6064 Motoko Miura Nec 1
#6064 Yoshitaka Fujihira Kumiai Chemical Industry Co. 1
#6064 Ryusuke Takada Mitsubishi Shipbuilding Co. 1
#6064 Takeshi AMISHIMA Mitsubishi Electric 1
#6064 Daisuke Someya Biglobe 1
#6064 Tsuyoshi Sakakibara Asahi Kasei Microdevices 1