Inventor

Yasunori Ichihashi

Inventor

Otsu, JP

Overview

3→

Patents

2013–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

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

C09Bprimary

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments18%

H10KOrganic electric solid-state devices18%

C09KMaterials for miscellaneous applications, not provided for elsewhere12%

H01LSemiconductor devices12%

C07CAcyclic or carbocyclic compounds6%

C07DHeterocyclic compounds6%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

G02BOptical elements, systems or apparatus6%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

H05BElectric heating6%

PatentTitleYear

10,836,959Pyrromethene-boron complex, color-changing composition, color-changing film, light source unit including same, display, and lighting2020 9,935,273Fluoranthene derivative, light-emitting device material containing same, and light-emitting device2018 8,502,201'Light-emitting element'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2020Patents assigned to TORAY INDUSTRIES (3)· patent assignee history

2013Patents assigned to ARAI TAKESHI (1)· patent assignee history

2013Patents assigned to ICHIHASHI YASUNORI (1)· patent assignee history

2013Patents assigned to IKEDA TAKESHI (1)· patent assignee history

2013Patents assigned to NAGAO KAZUMASA (1)· patent assignee history

2013–2020Based in Otsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TORAY INDUSTRIES	3	2013–2020
ARAI TAKESHI	1	2013
ICHIHASHI YASUNORIself	1	2013
IKEDA TAKESHI	1	2013
NAGAO KAZUMASA	1	2013

Locations

Location	Patents	Span
Otsu, JP	3	2013–2020