YH

Yoshiro Hirai

CC Citizen Watch Co.: 1 patents #31 of 90Top 35%
Overall (2020): #213,350 of 565,922Top 40%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10793935 Carbon-containing steel material and method for producing same Haruko Yamazaki 2020-10-06