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 Kyowa Hakko Kogyo Co., Jeol, Senju Metal Industry Co..

Showing 12,301–12,350 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Tomohisa Kuzuyama Kyowa Hakko Kogyo Co. 1
#6064 Tetsuro Sugita Jeol 1
#6064 Naoko Hirai Senju Metal Industry Co. 1
#6064 Hideaki Yamamura Nippon Steel & Sumitomo Metal 1
#6064 Keiichi Aomatsu Bridgestone 1
#6064 Tamotsu Uekuri Japan Display 1
#6064 Yuta Toyoshima Teijin Limited 1
#6064 Toshio Kita Teijin Chemicals Limited 1
#6064 Shinji Ueki Paramount Bed Co. 1
#6064 Satoshi Oura Nec 1
#6064 Hideki Kohno Hitachi 1
#6064 Takahiko Ohishi Ricoh Company 1
#6064 Shinpei Omote Mitaka Kohki Co. 1
#6064 Yamato Koike Achilles 1
#6064 Naruo Takizawa Konica 1
#6064 Yasuyuki Momoi Hitachi 1
#6064 Hideo Sakurai Ricoh Company 1
#6064 Motoyuki Kawamura 1
#6064 Shintaro Fujikami Mitsubishi Electric 1
#6064 Daisuke Morimoto Mitsubishi Electric 1
#6064 Kaoru Kato Semiconductor Energy Laboratory 1
#6064 Haruyo Tani 1
#6064 Motohiro Ota Kyowa Hakko Kirin Co. 1
#6064 Akitsugu Keimatsu Nec 1
#6064 Kaoru Ashihara 1
#6064 Shinya Miyakawa Nec 1
#6064 Shingo Endo Agc 1
#6064 Takaya Koseki Intercontinental Great Brands 1
#6064 Shiina SUZUKI Dena Co. 1
#6064 Shinichi Matsunari Hirata 1
#6064 Takuji Imamura Mitsubishi Electric 1
#6064 Koichiro Homma Mitsubishi Electric 1
#6064 Keiichi Zouta Mitsubishi Gas Chemical Company 1
#6064 Yuki Nakatsu Hitachi-Johnson Controls Air Conditioning 1
#6064 Kenji Kuwahara Sumitomo Electric Industries 1
#6064 Takaaki Tagomori Taikisha 1
#6064 Yoshimasa Tada Kabushiki Kaisha Toshiba 1
#6064 Manabu Ochida Shin-Kobe Electric Machinery Co. 1
#6064 Norihito Machida Subaru 1
#6064 Fumihiro Gobou Sumitomo Osaka Cement Co. 1
#6064 Naoki Itakura Nec Display Solutions 1
#6064 Eiichi Ikawa Toshiba Mitsubishi-Electric Industrial Systems 1
#6064 Chaki Prakash Nec 1
#6064 Shinsuke Nasukawa Tokyo Electric Power Company Holdings, Incorporated 1
#6064 Takatoshi Tamaoki Renesas Electronics 1
#6064 Kazuya Noda Asahi Kasei Chemicals 1
#6064 Yukio Kodama Mitsubishi Electric 1
#6064 Masataka Morita Astellas Pharma 1
#6064 Masanao Matsuoka Dai Nippon Printing Co. 1
#6064 Junko Suginaka 1