TO

Takumi Ohata

HI Hitachi: 2 patents #141 of 1,165Top 15%
📍 Ashiya, JP: #2 of 9 inventorsTop 25%
Overall (2021): #107,002 of 548,734Top 20%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11045849 Composite cemented carbide roll 2021-06-29
10920304 Cemented carbide and its production method, and rolling roll Shunji Matsumoto 2021-02-16