HO

Hiroshi Ookuma

HC Hodogaya Chemical Co.: 1 patents #8 of 23Top 35%
KY Kyulux: 1 patents #10 of 23Top 45%
Overall (2021): #432,985 of 548,734Top 80%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10916711 Spiro compound having azafluorene ring structure, light-emitting material, and organic electroluminescent device Chihaya Adachi, Takuma Yasuda, Tetsuya Nakagawa, Katsuyuki Shizu 2021-02-09