OH

Osamu Horikawa

DH D&M Holdings: 1 patents #1 of 11Top 10%
Overall (2025): #260,823 of 469,880Top 60%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12212913 Earphone device Shinya Narisawa, Jun Shiroishi 2025-01-28