Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
OP

Okayama Prefecture

Rank (All Time): #36,114 of 106,127Top 35%
24 inventors
16 Patents All Time

Top Inventors at Okayama Prefecture All Time

Showing 1–24 of 24 inventors

RankNamePatents
1 Kenichi Ogawa 14
2 Chikara Ohto 7
2 Satoshi Kondo 7
#4 Kenji Henmi 4
#4 Norihiro Mitsukawa 4
#6 Aya Iwasaki 2
#6 Etsuko Hattori 2
#6 Hisashi Ito 2
#6 Hiroki Sugimoto 2
#6 Iwao Furusawa 2
#6 Nobuhiko Muramoto 2
#6 Tomoko Tanaka 2
#6 Yoshikazu Tanaka 2
#6 Yukinori Nagatani 2
#15 Etsuko Matsunaga 1
#15 Humiki Kawai 1
#15 Masayoshi Matsumoto 1
#15 Masatoshi Ohishi 1
#15 Madoka Yonekura 1
#15 Naoki Negishi 1
#15 Tomonori Shiraishi 1
#15 Toshiaki Tanabe 1
#15 Yasushi Tasaka 1
#15 Akiyoshi Kawaoka 1