Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Tetuso Tokuda

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #2,067,197 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8406647 Fixing device including a radiation member to cool a fixing member and a heat conductive member Akira Shinshi, Yoshiki Yamaguchi, Kenichi Hasegawa, Masaaki Yoshikawa, Hiroshi Yoshinaga +8 more 2013-03-26
8385804 Fixing device and image forming apparatus employing the fixing device Yoshiki Yamaguchi, Kenichi Hasegawa, Masaaki Yoshikawa, Hiroshi Yoshinaga, Kenji Ishii +8 more 2013-02-26