HO

Hiroki Oka

Dai Nippon Printing Co.: 1 patents #60 of 218Top 30%
Overall (2025): #368,581 of 469,880Top 80%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12227823 Metal plate for producing vapor deposition masks, production method for metal plates, vapor deposition mask, production method for vapor deposition mask, and vapor deposition mask device comprising vapor deposition mask Sachiyo Matsuura, Chiaki Hatsuta, Chikao Ikenaga, Hideyuki Okamoto, Masato Ushikusa 2025-02-18