YH

Yoshihiko Hirayama

DS Daini Seikosha: 1 patents #11 of 50Top 25%
Overall (1982): #22,201 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4315332 Electronic timepiece radio Ryoichiro Sakami 1982-02-09