Inventor
Yuichi Sadamitsu
Inventor
Tokyo, JP
Overview
Patents· 19 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. pigments21%
G02BOptical elements, systems or apparatus17%
C09KMaterials for miscellaneous applications, not provided for elsewhere13%
C07DHeterocyclic compounds8%
H01LSemiconductor devices8%
H10KOrganic electric solid-state devices8%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them5%
Y10TTechnical subjects covered by former us classification5%
C07CAcyclic or carbocyclic compounds3%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium3%
PatentTitleYear
10,829,503Dibenzopyrromethene boron chelate compound, near-infrared light absorbing material, thin film and organic electronics device202010,749,116Dibenzopyrromethene boron chelate compound, near-infrared light-absorbing material, thin-film, and organic electronic device20209,859,508'Condensed polycyclic aromatic compound and use thereof'20189,564,604'Fused polycyclic aromatic compounds, organic semiconductor material and thin film including the same, and method for producing an organic semiconductor device'20179,354,371'Azo compounds, and dye-based polarizing films and polarizing plates comprising the same'20169,260,451'Method for producing aromatic compound'20169,213,130'Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt'20159,018,630'Heterocyclic dinaphtho thieno thiophene (DNTT) compounds for use as organic semiconductor thin films in field effect transistors and related methods'20158,940,059'Azo compound and dye polarizing film containing the same'20158,771,378'Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt'20148,643,809'Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt'20148,477,268'Azo compound and salts thereof, as well as dye-based polarization films and polarizing plates comprising the same'20138,389,122'Azo compound and dye polarizing film containing the same'20138,389,124'Azo compound and dye polarizing film containing the same'20138,232,375'Azo compound, and dye-containing polarizing film comprising the same'20127,931,702'Azo compound and salt thereof, and dye-containing polarizing film comprising the compound or salt'20117,514,129'Azo compound and polarizing film and polarizing plate each containing the same'20097,445,822'Azo compounds and dye-type polarizing films or plates containing the same'20087,304,147'Azo compound and salt thereof'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2020Patents assigned to NIPPON KAYAKU KK (19)· patent assignee history
2007–2016Patents assigned to POLATECHNO CO LTD (13)· patent assignee history
2007–2020Based in Tokyo, JP· patent location history
2012–2016Patents assigned to SADAMITSU YUICHI (9)· patent assignee history
2012–2016Patents assigned to OHNO HIROAKI (7)· patent assignee history
2012–2016Patents assigned to HIGETA TAKAHIRO (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON KAYAKU KK | 19 | 2007–2020 |
| POLATECHNO CO LTD | 13 | 2007–2016 |
| SADAMITSU YUICHIself | 9 | 2012–2016 |
| OHNO HIROAKI | 7 | 2012–2016 |
| HIGETA TAKAHIRO | 6 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 19 | 2007–2020 |