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Dowa Mining Co. — 217 Patents

Rank (All Time): #3,550 of 106,120Top 4%

324 inventors

217 Patents All Time

Top Inventors at Dowa Mining Co. All Time

Showing 1–50 of 324 inventors

Rank	Name	Patents
1	Hideyo Osanai	18
2	Akira Sugawara	17
3	Masami Kimura	16
#4	Kazushi Sano	12
#4	Masami Sakuraba	12
#6	Seiichi Hisano	11
#7	Makoto Namioka	10
#8	Kishio Tayama	9
#9	Junji Nakamura	8
#9	Nobuyoshi Tsukaguchi	8
#9	Shuji Yoshizawa	8
#12	Akira Nagatomi	7
#12	Kazuhisa Saito	7
#12	Takayoshi Endo	7
#12	Takayuki Takahashi	7
#16	Choju Nagata	6
#16	Fumitaka Abukawa	6
#16	Kazuyuki Matsumoto	6
#16	Masatoshi Suehiro	6
#16	Masaya Takahara	6
#16	Yoshitake Hana	6
#22	Hiromasa Miyoshi	5
#22	Hirofumi Takei	5
#22	Kenichi Inoue	5
#22	Keiji Yokose	5
#22	Kiyoshi Yamada	5
#22	Masahiro Furo	5
#22	Ryuichi Toba	5
#22	Shuetsu Haseyama	5
#22	Shuichi Kohayashi	5
#22	Takatoshi Fujino	5
#22	Toshihiro Kanzaki	5
#22	Toshio Ueda	5
#22	Yoshichika Horikawa	5
#22	Yoshihiro Okada	5
#36	Chiaki Izumikawa	4
#36	Jun Takahashi	4
#36	Kazumasa Tezuka	4
#36	Kenichi Harigae	4
#36	Ken Iyoda	4
#36	Kenji Sakane	4
#36	Kozo Ogi	4
#36	Kouki Toishi	4
#36	Masahiro Gotoh	4
#36	Masami Kamada	4
#36	Mamoru Sato	4
#36	Naoya Sunachi	4
#36	Seiji Isoyama	4
#36	Seiichi Nakatani	4
#36	Tatsumi Inamura	4