YO

Yukio Ooka

UN Unknown: 2 patents #12,644 of 83,584Top 20%
📍 Toyonaka, JP: #550 of 1,166 inventorsTop 50%
Overall (All Time): #2,335,411 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4727734 Ultrasonic washing machine Masao Kanazawa 1988-03-01
4727896 Ultrasonic washing machine for tableware Masao Kanazawa 1988-03-01