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

Seiki Mitani — 6 Patents

CHChisso: 6 patents #140 of 833Top 20%
CPChisso Petrochemical: 2 patents #49 of 139Top 40%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #870,639 of 4,157,543Top 25%
6 Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7560146 Polymerizable liquid crystal composition Kazumi Hagihara, Ryushi Shundo 2009-07-14
6479646 Metallocene compounds having indenyl ligand and catalysts for olefin polymerization containing the same Masato Nakano, Tsutomu Ushioda, Hiroshi Yamazaki 2002-11-12
6426395 &mgr;-oxo-bis-metallocene complex compounds and catalysts using same for the polymerization of olefins as well as polymerization process Hiroshi Yamazaki, Masato Nakano, Jun Saito, Masato Harada, Mina Koyama 2002-07-30
6326493 Metallocene compounds, processes for the preparation thereof, catalyst components for olefin polymerization, and processes for the production of olefin polymers Masato Nakano, Jun Saito, Hiroshi Yamazaki, Keisuke Kimura 2001-12-04
6184402 Processes for the preparation of metallocene complexes Hiroshi Yamazaki, Masato Nakano, Jun Saito, Masato Harada, Mina Koyama 2001-02-06
6169051 Metallocene compounds, processes for the preparation thereof, catalyst components for olefin polymerization, and processes for the production of olefin polymers Masato Nakano, Jun Saito, Hiroshi Yamazaki, Keisuke Kimura 2001-01-02