LexDanaLexDanabeta
Inventor

Keigo NAITO

Inventor
JP

Overview

3→
Patents
2022–2025
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H10Kprimary
H10KOrganic electric solid-state devices29%
A61KPreparations for medical, dental or toiletry purposes14%
A61QSpecific use of cosmetics or similar toiletry preparations14%
C07DHeterocyclic compounds14%
C09KMaterials for miscellaneous applications, not provided for elsewhere14%
H01LSemiconductor devices14%
PatentTitleYear
12,317,744Compound having a fused-azole ring structure and organic electroluminescent element202511,594,700Organic electroluminescent device202311,273,110Dye for hair coloration, composition for hair coloration containing dye, and method for producing dye2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2025Patents assigned to HODOGAYA CHEMICAL CO LTD (3)· patent assignee history
2022–2025Based in JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HODOGAYA CHEMICAL CO LTD32022–2025
Locations
LocationPatentsSpan
JP32022–2025