Top Inventors in Joetsu, JP — 2020

Joetsu, JP ranks #677 worldwide for total patents filed in 2020, with 223 patents from 68 inventors. Leading employers of inventors based in Joetsu, JP include Shin-Etsu Chemical Co., Murata Manufacturing Co., Kabushiki Kaisha Toshiba.

Showing 1–50 of 68 inventors

Rank	Inventor	Primary Company	Patents
1	Jun Hatakeyama	Shin-Etsu Chemical Co.	30
2	Motoaki Iwabuchi	Shin-Etsu Chemical Co.	16
3	Yukio Inazuki	Shin-Etsu Chemical Co.	13
#4	Masaki Takeuchi	Murata Manufacturing Co.	11
#5	Takeshi Kinsho	Shin-Etsu Chemical Co.	10
#6	Takayuki Fujiwara	Shin-Etsu Chemical Co.	9
#7	Tsutomu Ogihara	Shin-Etsu Chemical Co.	8
#8	Daijitsu Harada	Shin-Etsu Chemical Co.	7
#8	Yuki Miyake	Shin-Etsu Chemical Co.	7
#8	Koji Hasegawa	Shin-Etsu Chemical Co.	7
#11	Shiori Nonaka	Shin-Etsu Chemical Co.	6
#12	Naosuke Maruyama	Shin-Etsu Chemical Co.	5
#13	Hideo Kaneko	Shin-Etsu Chemical Co.	4
#13	Masahiro Fukushima	Shin-Etsu Chemical Co.	4
#13	Yuji Harada	Shin-Etsu Chemical Co.	4
#16	Daisuke KORI	Shin-Etsu Chemical Co.	3
#16	Takeru Watanabe	Shin-Etsu Chemical Co.	3
#16	Miyoshi Yamashita	Shin-Etsu Chemical Co.	3
#16	Yoko Ishitsuka	Shin-Etsu Chemical Co.	3
#16	Harunobu Matsui	Shin-Etsu Chemical Co.	3
#16	Atsushi Watabe	Shin-Etsu Chemical Co.	3
#16	Takuya Yokosawa	Shin-Etsu Chemical Co.	3
#16	Tsutomu Yamakawa	Kabushiki Kaisha Toshiba	3
#16	Ryo MITSUI	Shin-Etsu Chemical Co.	3
#25	Hisashi Yagi	Shin-Etsu Chemical Co.	2
#25	Kouhei Sasamoto	Shin-Etsu Chemical Co.	2
#25	Takayuki Nagasawa	Shin-Etsu Chemical Co.	2
#25	Yuki Suka	Shin-Etsu Chemical Co.	2
#25	Yusuke Biyajima	Shin-Etsu Chemical Co.	2
#25	Katsuya Takemura	Shin-Etsu Chemical Co.	2
#25	Keisuke NIIDA	Shin-Etsu Chemical Co.	2
#25	Takashi Miyazaki	Nec	2
#25	Keiichi Masunaga	Shin-Etsu Chemical Co.	2
#25	Masayoshi Sagehashi	Shin-Etsu Chemical Co.	2
#25	Yuji Shimizu	Mitsubishi Chemical	2
#36	Masaaki Kotake	Shin-Etsu Chemical Co.	1
#36	Ryoken OZAWA	Shin-Etsu Chemical Co.	1
#36	Shiroyasu Watanabe	Shin-Etsu Handotai Co.	1
#36	Taishi Kitaguchi	Shin-Etsu Chemical Co.	1
#36	Takashi GONDAIRA	Arisawa Mfg. Co.	1
#36	Masahiko Naruse	Shin-Etsu Chemical Co.	1
#36	Masashi Iio	Shin-Etsu Chemical Co.	1
#36	Takashi SAWAMURA	Shin-Etsu Chemical Co.	1
#36	Rie Kikuchi	Shin-Etsu Chemical Co.	1
#36	Toyohisa Sakurada	Shin-Etsu Chemical Co.	1
#36	Kazumichi JO	Kissei Pharmaceutical Co.	1
#36	Tomomi Watanabe	Mazda Motor	1
#36	Shuhei Ueda	Shin-Etsu Chemical Co.	1
#36	Yasuyuki Hirama	Shin-Etsu Chemical Co.	1
#36	Ayumu Sato	Canon	1

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Joetsu, JP 2020