Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DP

Daicel Polymer

Rank (All Time): #25,724 of 106,127Top 25%
31 inventors
24 Patents All Time

Top Inventors at Daicel Polymer All Time

Showing 1–31 of 31 inventors

RankNamePatents
1 Masahiko Itakura 6
2 Daiji IKEDA 3
2 Hiroshi Katayama 3
2 Shinichiro Imanishi 3
2 Toshio Oguni 3
2 Toshihiro Tai 3
2 Yasuo Okumura 3
2 Yoshihiro Asami 3
#9 Hirotomo Katano 2
#9 Hiroshi Sagane 2
#9 Kazunobu Yanai 2
#9 Masahiro Katayama 2
#9 Naoki Wakita 2
#9 Takafumi Ueda 2
#9 Takayuki UNO 2
#16 Hideaki Sakamoto 1
#16 Hiromoto Sasaki 1
#16 Ippei Tonosaki 1
#16 Kenji Yao 1
#16 Koji Nishikawa 1
#16 Masayuki Okoshi 1
#16 Osamu Jigami 1
#16 Satoru Shibata 1
#16 Shigeyuki Kosaka 1
#16 Shigeyuki Kousaka 1
#16 Tatsuo Izumitani 1
#16 Takayuki Ogihara 1
#16 Takehiko Shima 1
#16 Toru Nakano 1
#16 Weihong Gu 1
#16 Yuichi Oe 1