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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daicel — 65 Patents in 2020

Rank (2020): #659 of 32,409Top 3%
117 inventors
65 Patents 2020

Top Inventors at Daicel 2020

Showing 1–50 of 117 inventors

RankNamePatents
1 Masahiko Shimizu 10
2 Takeshi Fujikawa 4
3 Hiroyuki Miura 3
3 Kenji Fukumoto 3
3 Masayuki Nakayasu 3
3 Masakazu Tokuda 3
3 Naoki Nakatsuka 3
3 Shinji Kikuchi 3
3 Shingo Oda 3
3 Tomohide FUJIWARA 3
3 Tomoharu Kobayashi 3
3 Yoshihisa Mizutani 3
3 Yuichi Sakanishi 3
#14 Hiroki Tanaka 2
#14 Naohiro Hashikawa 2
#14 Ryohei Yamada 2
#14 Sadayuki Fukui 2
#14 Shu Shimamoto 2
#14 Shota SHIMOSUGI 2
#14 Shizuka Ukita 2
#14 Shinya YABUNO 2
#14 Takahiro HIRAMURA 2
#14 Takashi Kubo 2
#14 Toshihiro Izuma 2
#14 Toshikazu Nakamura 2
#14 Tomohito Okabayashi 2
#14 Toshiyuki Sakai 2
#14 Yasunobu Nakagawa 2
#14 Yuzo Yamamoto 2
#30 Akihiro Higuchi 1
#30 Akihiro Shibamoto 1
#30 Akira Yamakawa 1
#30 Anan SAKAGUCHI 1
#30 Atsuhiro UETOMO 1
#30 Aya Kaide 1
#30 Chiyo Yamamoto 1
#30 Go Hiroki 1
#30 Hiroko Inoue 1
#30 Hisayoshi Ito 1
#30 Hiroshi Kimura 1
#30 Hiroshi Kobayashi 1
#30 Hiroshi ONOMICHI 1
#30 Hiroshi Sakurai 1
#30 Hirotsuna Sato 1
#30 Hiroto Tanigawa 1
#30 Hiroki Taniguchi 1
#30 Kazuhisa Fukui 1
#30 Katsuhiro Imoto 1
#30 Kanae Nishimura 1
#30 Kazuyuki Okada 1