Inventor

HIRAYAMA Yuta

JP10 patents

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

HODOGAYA CHEMICAL CO LTD

8 patents

US11605785B2Mar 14, 2023

Organic electroluminescence device

HODOGAYA CHEMICAL CO LTD2 citations61

US11925108B2Mar 5, 2024

Compound having triarylamine structure and organic electroluminescence device

HODOGAYA CHEMICAL CO LTD1 citations60

US12221430B2Feb 11, 2025

Compound having pyrimidine ring structure and organic electroluminescence device

HODOGAYA CHEMICAL CO LTD0 citations59

US11980092B2May 7, 2024

Organic electroluminescence element

HODOGAYA CHEMICAL CO LTD0 citations51

US12219872B2Feb 4, 2025

Organic electroluminescent element

HODOGAYA CHEMICAL CO LTD0 citations50

US12037332B2Jul 16, 2024

Compound including benzimidazole ring structure and organic electroluminescent element

HODOGAYA CHEMICAL CO LTD0 citations50

US12102002B2Sep 24, 2024

Compound having benzazole ring structure, and organic electroluminescent device

HODOGAYA CHEMICAL CO LTD0 citations49

US12024527B2Jul 2, 2024

Compound having azabenzoxazole ring structure and organic electroluminescent element

HODOGAYA CHEMICAL CO LTD0 citations48

SFC CO LTD

1 patent

US12281248B2Apr 22, 2025

Organic light-emitting element using polycyclic aromatic derivative compound

SFC CO LTD2 citations73

UNIV KYUSHU NAT UNIV CORP

1 patent

US10014487B2Jul 3, 2018

Organic electroluminescent device

UNIV KYUSHU NAT UNIV CORP0 citations50