Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Sodegaura, JP ranks #1,156 worldwide for total patents filed in 2021, with 124 patents from 70 inventors. Leading employers of inventors based in Sodegaura, JP include Rohm Co., Idemitsu Kosan Co., Fujifilm Business Innovation.

Showing 1–50 of 70 inventors

Rank Inventor Primary Company Patents
1 Yuki Nakano Rohm Co. 13
2 Tomoki Kato Idemitsu Kosan Co. 8
3 Masaki Numata Idemitsu Kosan Co. 5
#4 Tasuku HAKETA Idemitsu Kosan Co. 4
#4 Aki YAMADA Idemitsu Kosan Co. 4
#4 Tomoaki Hirano Fujifilm Business Innovation 4
#4 Yosuke Ono Mitsui Chemicals 4
#8 Emiko Kambe Idemitsu Kosan Co. 3
#8 Masatoshi Shibata Idemitsu Kosan Co. 3
#8 Yu KUDO Idemitsu Kosan Co. 3
#8 Satomi TASAKI Idemitsu Kosan Co. 3
#12 Shigekazu Tomai Idemitsu Kosan Co. 2
#12 Toyoaki Sasaki Mitsui Chemicals 2
#12 Emi KAWASHIMA Idemitsu Kosan Co. 2
#12 Kazuyoshi Inoue Idemitsu Kosan Co. 2
#12 Satoshi Tamura Panasonic 2
#12 Ryo Aburatani Idemitsu Kosan Co. 2
#12 Minoru Senga Idemitsu Kosan Co. 2
#12 Masatoshi Saito Idemitsu Kosan Co. 2
#12 Akihiro Sengoku Nippon Steel 2
#12 Naohiko Suemura Nissan Chemical Industries 2
#12 Tsuyoshi Ota Idemitsu Petrochemical Co. 2
#23 Hitoshi Kuma Idemitsu Kosan Co. 1
#23 Kenichi Fukukawa Mitsui Chemicals 1
#23 Akinori Yomogita Idemitsu Kosan Co. 1
#23 Masashi OYAMA Idemitsu Kosan Co. 1
#23 Futoshi Utsuno Idemitsu Kosan Co. 1
#23 Junpei Tanaka Mitsui Chemicals 1
#23 Kenji Iida 1
#23 Takafumi Ishida Harison Toshiba Lighting 1
#23 Seiichi Koshisaka Toho Chemical Industry Co. 1
#23 Tatsuya Kikuzuki Fujitsu Limited 1
#23 Kenji Sogo Sumitomo Chemical 1
#23 Hidetsugu Ikeda Idemitsu Kosan Co. 1
#23 Toshihiro Iwakuma Idemitsu Kosan Co. 1
#23 Chishio Hosokawa Idemitsu Kosan Co. 1
#23 Masaru Nakagawa Idemitsu Kosan Co. 1
#23 Akira Suga Toho Chemical Industry Co. 1
#23 Yoshikazu Nagasaki Idemitsu Kosan Co. 1
#23 Tatsuhiro Urakami Mitsui Chemicals 1
#23 Masaki Okazaki Fujitsu Limited 1
#23 Motoyasu Yasui Mitsui Chemicals 1
#23 Takeshi Tominaga Sumitomo Chemical 1
#23 Kazutoshi Sekiguchi Nissan Chemical Industries 1
#23 Yoshinori AOYAMA Fujitsu Limited 1
#23 Tomoya MAETA Niigata University 1
#23 Tomoharu HAYAMA Idemitsu Kosan Co. 1
#23 Masayuki Nishida Subaru 1
#23 Kazuya Kuroiwa 1
#23 Kazuoki Nakai Mitsui Chemicals 1