Inventor

UMEMOTO TOMOKAZU

JP7 patents

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

MITSUBISHI CHEM CORP

6 patents

US9309385B2Apr 12, 2016

Cellulose fibers and process for producing the same, cellulose fiber assembly, and cellulose-fiber composite material

MITSUBISHI CHEM CORP7 citations81

US11316112B2Apr 26, 2022

Electron-accepting compound and composition for charge-transporting film, and luminescent element using same

MITSUBISHI CHEM CORP4 citations70

US12133453B2Oct 29, 2024

Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, organic EL lighting, and manufacturing method for organic electroluminescent element

MITSUBISHI CHEM CORP0 citations61

US11943997B2Mar 26, 2024

Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, organic EL lighting, and manufacturing method for organic electroluminescent element

MITSUBISHI CHEM CORP0 citations61

US11793069B2Oct 17, 2023

Electron-accepting compound and composition for charge-transporting film, and luminescent element using same

MITSUBISHI CHEM CORP0 citations59

US10270035B2Apr 23, 2019

Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, and organic EL lighting device

MITSUBISHI CHEM CORP1 citations58

UMEMOTO TOMOKAZU

1 patent

US8771463B2Jul 8, 2014

Cellulose fiber assembly and method for preparing the same, fibrillated cellulose fibers and method for preparing the same, and cellulose fiber composite

UMEMOTO TOMOKAZU1 citations43