ZO

Zenichi Okura

PE Pentax: 24 patents #63 of 761Top 9%
AK Asahi Kogaku Kogyo K.K.: 2 patents #47 of 180Top 30%
Overall (All Time): #156,626 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
4187020 Tripod rack and pinion focussing mechanism rotatable relative to lens Tadayoshi Ishii, Takeshi Machida 1980-02-05