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 Sony, Showa Denko Materials Co., Denso.

Showing 12,801–12,850 of 15,298 inventors

Rank Inventor Primary Company Patents
#6064 Tatsuo Tsuchie Sony 1
#6064 Masamichi MITSUMOTO Showa Denko Materials Co. 1
#6064 Toshihiro Hayashi Denso 1
#6064 Takanori Yoshizawa Taiyo Yuden Co. 1
#6064 Matthew Forrest Sony 1
#6064 Tatsuya KUSUMOTO Idemitsu Kosan Co. 1
#6064 Sho Hoshino Cataler 1
#6064 Shuji Fukunaga Eagle Industry Co. 1
#6064 Chikao Ikenaga Dai Nippon Printing Co. 1
#6064 Keisuke Fukuchi Proterial 1
#6064 Takafumi Kawasaki Hitachi 1
#6064 Kazuyoshi Takeda Seiko Epson 1
#6064 Keisuke TOMITA Mitsubishi Engineering-Plastics 1
#6064 Shinya Ogawa Kyowa Kirin Co. 1
#6064 Hirokuni Yano Kabushiki Kaisha Toshiba 1
#6064 Kensuke Nakamura Daiichi Sankyo Company, Limited 1
#6064 Mio Akima Ricoh Company 1
#6064 Miho Matsumoto Nikon 1
#6064 Kohei ONDA Mitsubishi Electric 1
#6064 Masahiro Nagata Dai Nippon Printing Co. 1
#6064 Hideki Takabe Nippon Steel & Sumitomo Metal 1
#6064 Yoshihiro Kudo Nissan Chemical Industries 1
#6064 Takashi Konno Aoi Electronics Co. 1
#6064 Ayumu Gyakushi Tokuyama Dental 1
#6064 Ryo Tajima Ebara 1
#6064 Jun Takada Nec 1
#6064 Takeshi Ohmori 1
#6064 Tatsuya Ishibashi Panasonic 1
#6064 Yuhei Yamamoto Tadano 1
#6064 Nobuhiro Aoki Casio Computer Co. 1
#6064 Mamoru Kosaki Sinfonia Technology Co. 1
#6064 Akihiro Nojima Hitachi 1
#6064 Hayato HORI Subaru 1
#6064 Masao Takeyama Mitsubishi Electric 1
#6064 Takayuki Futatsuka Jfe Steel 1
#6064 Shinichiro Nakamura Daiwa Steel Tube Industries Co. 1
#6064 Yuki Toji Jfe Steel 1
#6064 Yugo KURIKI The University Of Tokyo 1
#6064 Takaya Sato Nisshinbo Industries 1
#6064 Masato Yano Denso 1
#6064 Seiji KON Bridgestone 1
#6064 Tomoyuki YOKOTA Japan Display 1
#6064 Takuji Hamasaki Pentax 1
#6064 Shingo Sugioka Jfe Steel 1
#6064 Naoto Okino Sony 1
#6064 Haruki KOSHITOUGE Mitsubishi Chemical 1
#6064 Yoshitaka Mukaiyama Ebara 1
#6064 Akihiko FUJISAWA Japan Display 1
#6064 Masami Kimura Dowa Mining Co. 1
#6064 Hiroyoshi Suzuki Mitsubishi Electric 1