Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Tondabayashi, JP ranks #4,267 worldwide for total patents filed all time, with 658 patents from 143 inventors. Leading employers of inventors based in Tondabayashi, JP include Unknown, Santen Pharmaceutical Co., Sumitomo Electric Industries.

Showing 1–50 of 143 inventors

Rank Inventor Primary Company Patents
1 Tadamitsu Kishimoto Unknown 41
2 Tadashi Iso Santen Pharmaceutical Co. 32
3 Michio Yamamura Sumitomo Electric Industries 31
#4 Kuniaki Asai Sumitomo Chemical 28
#5 Noboru Sakaguchi Shimano 23
#6 Haruo Senbokuya Daidousanso Co. 20
#7 Hideo Kajita Minolta 19
#8 Mashio Kitaura Minolta 18
#9 Yoshinori Makiura Mita Industrial Co. 17
#9 Susumu Imagaki Jtekt 17
#11 Shirou Nakano Jtekt 16
#12 Akio Hattori Kubota 15
#13 Yoshiyuki Koizumi Sumitomo Chemical 14
#14 Yuzo Matsuoka Tanabe Seiyaku Co. 11
#14 Akio Yamanishi Komatsu Shisakusho 11
#16 Satoru Fujimoto Daikin Industries 9
#16 Zenpei Tani Sharp Kabushiki Kaisha 9
#16 Teijiro Kitao Dainippon Ink And Chemicals 9
#16 Hirohiko Togeyama Panasonic 9
#16 Kenji Hatazawa Sharp Kabushiki Kaisha 9
#16 Zempei Tani Sharp Kabushiki Kaisha 9
#22 Masanori Shintani Mitsubishi Motors 8
#22 Kaori Sameshima Basf Se 8
#22 Junichi Minami Morinaga Milk Industry Co. 8
#22 Katsumi Inaba Sharp Kabushiki Kaisha 8
#22 Kazuyoshi Amami Sumitomo Electric Industries 8
#22 Isamu Morimoto Kubota 8
#28 Hidetoshi Yasumoto Minolta 7
#28 Tomohide Iida Dowa Electronics Materials Co. 7
#28 Kazuyuki Sasakura Shionogi & Co. 7
#28 Tsutomu Takei Kabushiki Kaisha Toshiba 7
#32 Naoki Motobayashi Mita Industrial Co. 6
#32 Keiya Ozawa Asahi Kasei Kabushiki Kaisha 6
#32 Hidetoshi Kawabata Minolta 6
#32 Tadayo Hata Seikenkai 6
#32 Katsuhiko Honda Kubota 6
#32 Masahiko Umekawa Hosiden 6
#32 Yoshiko Yamaguchi Kabushiki Kaisha Toshiba 6
#32 Asahiko Otani Hitachi 6
#40 Seiji Izuhara Takeda Chemical Industries 5
#40 Masahiko Jinbo Shimano 5
#40 Kazuya Kiyoi Konica Minolta Sensing 5
#40 Michitaro Fujimoto Fujimoto Pharmaceutical 5
#44 Toshinobu Ogura Minolta 4
#44 Satoru Morimoto Sumitomo Electric Industries 4
#44 Michiyasu Honda Nippon Steel 4
#44 Daijiro Yano Maeda Metal Industries 4
#48 Takashi Kishioka Unknown 3
#48 Goro Tsuji Jtekt 3
#48 Tomohiko Kawaji Minolta Co. 3