Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tome, JP ranks #10,048 worldwide for total patents filed all time, with 199 patents from 72 inventors. Leading employers of inventors based in Tome, JP include Excell, Kabushiki Kaisha Toshiba, Chisso.

Showing 1–50 of 72 inventors

Rank Inventor Primary Company Patents
1 Yasuo Ezaki Excell 12
2 Masahiko Tsunoda Kabushiki Kaisha Toshiba 11
2 Yasuhiro Ohashi Kabushiki Kaisha Toshiba 11
#4 Shingo Kikukawa Chisso 10
#5 Ryozi Ninomiya Kabushiki Kaisha Toshiba 9
#5 Tetsuji Sakurai Kabushiki Kaisha Toshiba 9
#7 Masahiko Kasashima Kabushiki Kaisha Toshiba 8
#8 Seiichi Hoshino Sanden 7
#8 Mitsunobu Aoyama Maruo Calcium Co. 7
#10 Yoshinori Atsumi Casio Computer Co. 6
#10 Mayumi Oka Kabushiki Kaisha Toshiba 6
#12 Shizuka Gunji Kabushiki Kaisha Toshiba 5
#12 Masao Namai Sawafuji Electric Co. 5
#14 Noriyoshi Yamada Nippon Shokubai Co. 4
#14 Fukuji Yoshida Sanyo Electric Co. 4
#16 Kazuhiro Kawasugi Casio Computer Co. 3
#16 Tomoyuki Nihei Casio Computer Co. 3
#16 Kensuke Adachi Kabushiki Kaisha Toshiba 3
#16 Yoshinobu Obokata Sanyo Electric Co. 3
#16 Hiroko Satoh Kabushiki Kaisha Toshiba 3
#16 Noriyoshi Ooyama Sanyo Electric Co. 3
#16 Yutaka Yanagisawa Casio Computer Co. 3
#23 Norio Tatsumi 2
#23 Shoichi Nakaji Tamura 2
#23 Fumiko Kobayashi National Institute Of Advanced Industrial Science And Technology 2
#23 Izumi Hoshino 2
#23 Tian Su Zhou Sapporo Breweries Limited 2
#23 Kenji Sutou Mitsuba 2
#23 Minoru Takayanagi Sanden 2
#23 Tosio Touhara Casio Computer Co. 2
#23 Tohru Nishikura Sawafuji Electric Co. 2
#23 Junko Konno Kabushiki Kaisha Toshiba 2
#23 Tohru Yoshioka Sawafuji Electric Co. 2
#23 Hiroshi Sekizuka Tokyo Electron Sagami 2
#23 Ayako Shimura Japan Servo Co. 2
#23 Kazuya Morota Subaru 2
#37 Shyoji Tsunekawa Sanyo Electric Co. 1
#37 Shouji Tunekawa Sanyo Electric Co. 1
#37 Masuo Noji Sawafuji Electric Co. 1
#37 Daikichirou Motegi Sawafuji Electric Co. 1
#37 Motoyuki Murakoso Sanyo Electric Co. 1
#37 Touru Yoshioka Kabushiki Kaisha Toshiba 1
#37 Naoki Tsuzurano Sanyo Electric Co. 1
#37 Ryuji Rouyama 1
#37 Hiroyoshi Kaneyama Sanyo Electric Co. 1
#37 Toru Nishikura Honda Motor Co. 1
#37 Hideaki Kuribara Sanoh Kogyo Kabushiki Kaisha 1
#37 Shigeyoshi Kubota Honda Motor Co. 1
#37 Masaki Kubota Sapporo Breweries Limited 1
#37 Masaharu Moriuchi Honda Motor Co. 1