Top Inventors in Ryugasaki, JP | Patent Leaderboard

Ryugasaki, JP ranks #3,381 worldwide for total patents filed all time, with 882 patents from 114 inventors. Leading employers of inventors based in Ryugasaki, JP include Hitachi Construction Machinery Co., Hitachi Medical, Mitsubishi Electric.

Showing 1–50 of 114 inventors

Rank	Inventor	Primary Company	Patents
1	Genroku Sugiyama	Hitachi Construction Machinery Co.	94
2	Osamu Miyazaki	Hitachi Medical	76
3	Yasutaka Tsuruga	Hitachi Construction Machinery Co.	63
#4	Kazuo Ishida	Mitsubishi Electric	51
#5	Fumihiko Matsuda	Nippon Mektron	35
#6	Masami Yoshida	Smc	34
#7	Hirotaka Takeshima	Hitachi Medical	32
#8	Hiroaki Yada	Sony	31
#9	Hiroyuki Ebinuma	Sekisui Medical Co.	28
#10	Takeshi Aikawa	Kabushiki Kaisha Toshiba	22
#10	Takayuki Ban	Toyota	22
#10	Mitsuaki Yamamoto	Sekisui Medical Co.	22
#13	Shohei Kamiya	Hitachi Construction Machinery Co.	21
#14	Yoshiharu Yamanishi	Eisai	20
#14	Kyoko Matsui	Toyota	20
#16	Arata Tanaka	Littelfuse, Japan G.K.	19
#17	Yutaka Koizumi	National Institute For Materials Science	16
#18	Keigo Kikuchi	Kcm	14
#18	Masakazu Miyata	Riso Kagaku	14
#20	Tomonori Aoki	Bridgestone	12
#20	Takashi Takeyama	Kcm	12
#22	Yoshimitsu Nakane	Canon	10
#22	Tomo Shimizu	Sekisui Medical Co.	10
#24	Yasunori Miyamoto	Hitachi Construction Machinery Co.	8
#24	Nagayuki Takao	Hitachi Maxell	8
#26	Takashi Sugata	Tcm	7
#27	Shinichi Migita	Hitachi Medical	6
#28	Isamu Fukamachi	Sekisui Medical Co.	5
#28	Shigeru Muraki	National Institute Of Advanced Industrial Science And Technology	5
#28	Junichi Kondou	Sekisui Medical Co.	5
#28	Kohei Takubo	Sekisui Medical Co.	5
#28	Akira Shimohira	Hitachi Construction Machinery Co.	5
#28	Takayuki Shimodaira	Hitachi Construction Machinery Co.	5
#28	Katsuyuki Kirita	Hitachi Construction Machinery Co.	5
#28	Kumiko Yuki	Sekisui Medical Co.	5
#36	Hidekazu Tsudome	Hitachi Plant Technologies	4
#36	Itaru Horiguchi	Okamoto Industries	4
#36	Yasuhiro Torizumi	Sankyo Holdings Co.	4
#36	Kiyoshi Imaizumi	Dai Nippon Printing Co.	4
#36	Kenkichi Yano	Dainippon Ink And Chemicals	4
#41	Chiharu Kageyama	Canon	3
#41	Yuriko Taniguchi	Daiichi Pure Chemicals Co.	3
#41	Ikuo Noguchi	Riso Kagaku	3
#41	Kyogo Tsushima	Okamoto Industries	3
#41	Mutsuo Ohtaka	Canon	3
#41	Kazuhiro Meguro	Kureha Chemical Industry Co.	3
#41	Yuka Akimoto	Toudai Tlo	3
#41	Hirohisa Taira	Nikon	3
#41	Masanao Matsuo	Sekisui Medical Co.	3
#41	Nobuo Masano	Hitachi Construction Machinery Co.	3

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Ryugasaki, JP All Time