SY

Shuji Yoneyama

PE Pentax: 2 patents #62 of 186Top 35%
AK Asahi Kogaku Kogyo K.K.: 1 patents #2 of 11Top 20%
Overall (1994): #8,672 of 165,921Top 6%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5347399 Zoom lens system Takayuki Sensui 1994-09-13
5325234 Telephoto lens system — 1994-06-28
5278699 Zoom lens system Takayuki Ito, Sachio Hasushita 1994-01-11