YO

Yukio Okamoto

HI Hitachi: 1 patents #814 of 2,935Top 30%
KO Konica: 1 patents #32 of 147Top 25%
Overall (1989): #12,087 of 140,708Top 9%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4860063 Method of controlling developer toner density of developing device 1989-08-22
4799058 Driving apparatus for a gas discharge display panel Shinichi Shinada, Kenkichi Suzuki, Akihiko Kougami 1989-01-17