Inventor

OTSUKI EIJI

JP6 patents

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

OTSUKI EIJI

2 patents

US8969862B2Mar 3, 2015

Organic electroluminescent element, method for manufacturing organic electroluminescent element, and coating liquid for electron injection and transport layer

OTSUKI EIJI5 citations68

US8585837B2Nov 19, 2013

High-manganese spheroidal graphite cast iron

OTSUKI EIJI1 citations39

DAINIPPON PRINTING CO LTD

1 patent

US9130176B2Sep 8, 2015

Material for hole injection transport layers, ink for forming hole injection transport layers, device, and production methods thereof

DAINIPPON PRINTING CO LTD2 citations61

SAMSUNG ELECTRONICS CO LTD

1 patent

US11322695B2May 3, 2022

Ink composition for organic light-emitting device, organic light-emitting device including film formed by using the ink composition, and method of manufacturing the organic light-emitting device

SAMSUNG ELECTRONICS CO LTD0 citations47

DAINIPPON INK & CHEMICALS

1 patent

US12344752B2Jul 1, 2025

Ink composition, light conversion layer, and color filter

DAINIPPON INK & CHEMICALS0 citations46

KOBE STEEL LTD

1 patent

US8343255B2Jan 1, 2013

Forged product and crankshaft manufactured from it

KOBE STEEL LTD1 citations40