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

Dowa Metals & Mining Co.

Rank (All Time): #37,690 of 106,127Top 40%
27 inventors
15 Patents All Time

Top Inventors at Dowa Metals & Mining Co. All Time

Showing 1–27 of 27 inventors

RankNamePatents
1 Tetsuo Fujita 8
2 Hironobu Mikami 5
2 Masayoshi Matsumoto 5
2 Masami Oouchi 5
2 Yusuke Sato 5
#6 Mitsuo Abumiya 4
#7 Minoru Kawasaki 3
#7 Yuzuru Nakamura 3
#9 Hiroshi Inoue 2
#9 Katsunori Yamaguchi 2
#9 Koji Yamada 2
#9 Masahiko Ogino 2
#9 Nobuyasu Ezawa 2
#9 Nobuaki Kita 2
#9 Ryoichi Taguchi 2
#16 Haruhiro Otani 1
#16 Hisashi Kubo 1
#16 Hiromitsu Yatsuhashi 1
#16 Kenichi Inoue 1
#16 Keiko Ishizaki 1
#16 Kozo Shinoda 1
#16 Mitsuo Abuyima 1
#16 Shigeru Suzuki 1
#16 Takashi Nakamura 1
#16 Tetsuya Ueda 1
#16 Yoshihiro Honma 1
#16 Akira Tsukada 1