Inventor

UMEMOTO YOSHIKAZU

JP3 patents

⚠️ This page may combine multiple inventors who share the name “UMEMOTO YOSHIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CHEMICAL CO

1 patent

US7932347B2Apr 26, 2011

Polymer comprising unit comprising fluorocyclopentane ring fused with aromatic ring and organic thin film and organic thin film element both comprising the same

SUMITOMO CHEMICAL CO2 citations60

IE YUTAKA

1 patent

US8114956B2Feb 14, 2012

Polymer having unit obtained by condensation of difluorocyclopentanedione ring and aromatic ring, organic thin film using the same, and organic thin film device

IE YUTAKA2 citations58

ASADA KOHEI

1 patent

US9617468B2Apr 11, 2017

Luminescent composition and light-emitting element using said composition

ASADA KOHEI0 citations39