Topcon — 1,548 Patents, Ranked #542

Top Inventors at Topcon All Time

Rank	Name	Patents
1	Fumio Ohtomo	227
2	Kaoru Kumagai	147
3	Yasufumi Fukuma	105
#4	Hitoshi Otani	73
#5	Nobuyuki Nishita	63
#6	Mitsuo Ishii	55
#7	Jun-ichi Kodaira	51
#8	Nobuo Kochi	50
#9	Toshifumi Mihashi	47
#10	Kazuki Osaragi	46
#11	Tadayuki Ito	44
#12	Hisashi Tsukada	43
#13	Kunihiro Hayashi	43
#14	Tetsuji Anai	41
#15	Masahiro Ohishi	38
#16	You Sasaki	36
#17	Kinpui Chan	35
#18	Masahiro Akiba	35
#19	Tatsuo Yamaguchi	33
#20	Takefumi Hayashi	31
#21	Yoko Hirohara	31
#22	Masayuki Momiuchi	30
#23	Tsutomu Kikawa	30
#24	Zhenguo Wang	30
#25	Ken-ichiro Yoshino	28
#26	Hisashi Isozaki	26
#27	Ikuo Ishinabe	24
#28	Satoshi Yanobe	24
#29	Akihiko Sekine	24
#30	Nobuaki Kitajima	23
#31	Yusuke Ono	22
#32	Atsushi Kubota	21
#33	Eiichi Yanagi	21
#34	Hiroyuki Aoki	21
#35	Makoto Fujino	21
#36	Satoshi Hirano	21
#37	Takeyuki Kato	21
#38	Takeshi Kikuchi	20
#39	Yoshiaki Goto	20
#40	Ryoichi HIROSE	17
#41	Taizo Eno	17
#42	Yukio Ikezawa	16
#43	Zaixing Mao	16
#44	Hiroshi Koizumi	15
#45	Hiroaki Okada	15
#46	Kazuhiro Oomori	15
#47	Kenichiro Yoshino	15
#48	Michiko Nakanishi	15
#49	Takashi Takahashi	15
#50	Takaaki Yamazaki	15
#51	Yasuo Suzuki	15
#52	Charles A. Reisman	14
#53	Hiroyuki Kawashima	14
#54	Katsuhiko Kobayashi	14
#55	Shigenori Nagano	14
#56	Susumu Saito	14
#57	Taiki Aimi	14
#58	Takeshi Sasaki	14
#59	Takahiro Watanabe	14
#60	Toshihiro Mino	14
#61	Yasushi Tanaka	14
#62	Yoshikatsu Tokuda	14
#63	Hiroshi Iijima	13
#64	Jun Sakai	13
#65	Nobuyuki Fukaya	13
#66	Takashi Fujimura	13
#67	Taichi Yuasa	13
#68	Yoshiyuki Hatano	13
#69	Fumihiko Kamizono	12
#70	Hiroyuki Otsuka	12
#71	Isao Minegishi	12
#72	Kazuaki Kimura	12
#73	Kanichi Tokuda	12
#74	Kenichi Watanabe	12
#75	Kouji Nishio	12
#76	Takeo Aoki	12
#77	Takahiro Komeichi	12
#78	Tomohiro Sakurada	12
#79	Yoichiro Iwa	12
#80	Gaku Takeuchi	11
#81	Hirotami Koike	11
#82	Hiroyuki Nishizawa	11
#83	Kazuhiko Yumikake	11
#84	Masahiro Shibutani	11
#85	Nobuo Hori	11
#86	Hitoshi Shimizu	10
#87	Makoto SAIKA	10
#88	Taisaku Kogawa	10
#89	Takeshi Nakamura	10
#90	Akio Kobayashi	10
#91	Daisuke Sasaki	9
#92	Hiroshi Akiyama	9
#93	Hiroyuki Ohtsuka	9
#94	Hisakazu Yoshino	9
#95	Jun Sasagawa	9
#96	Kazuhiro Ogawa	9
#97	Masayuki Hideshima	9
#98	Masashi Yamaoka	9
#99	Toshihiro Iwai	9
#100	Toru Tojo	9