ON

Osamu Nozawa

HO Hoya: 3 patents #5 of 70Top 8%
Overall (2023): #65,808 of 537,848Top 15%
3
Patents 2023

Issued Patents 2023

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11762279 Mask blank, method for manufacturing reflective mask, and method for manufacturing semiconductor device Ryo Ohkubo, Hiroaki Shishido 2023-09-19
11720014 Mask blank, phase shift mask, and method of manufacturing semiconductor device Hitoshi Maeda, Hiroaki Shishido 2023-08-08
11630388 Mask blank, method for manufacturing phase shift mask, and method for manufacturing semiconductor device Ryo Ohkubo, Hiroaki Shishido 2023-04-18