ST

Syokichi Tokumaru

OC Oki Electric Industry Co.: 2 patents #947 of 2,807Top 35%
Overall (All Time): #2,290,952 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5477328 Optical transmission calibration device and method for optical transmissiometer — 1995-12-19
4726684 Measurement apparatus for optical transmission factor — 1988-02-23