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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Oomuta, JP ranks #6,415 worldwide for total patents filed in 2021, with 15 patents from 14 inventors. Leading employers of inventors based in Oomuta, JP include Denka Company Limited, Mitsui Chemicals, Fujifilm.

Showing 1–14 of 14 inventors

Rank Inventor Primary Company Patents
1 Kohki Ichikawa Denka Company Limited 2
2 Hajime Yonezawa 1
2 Akinori Nagatomo Mitsui Chemicals 1
2 Yasuhiro Seto Fujifilm 1
2 Yuji SHIGEYOSHI Nippon Yttrium Co. 1
2 Masaru Kawaguchi Mitsui Chemicals 1
2 Shoji IMAURA Mitsui Mining & Smelting Co. 1
2 Taiki Nishi Denka Company Limited 1
2 Saori INOUE Denka Company Limited 1
2 Yoshitaka MINAKATA Denka Company Limited 1
2 Akimasa YUASA Denka Company Limited 1
2 Kento MATSUKURA Nippon Yttrium Co. 1
2 Kouji Miyata Sony 1
2 Daiki IKEDA Denka Company Limited 1