SI

Shu Ishiguro

KO Konica: 2 patents #962 of 1,958Top 50%
Overall (All Time): #2,329,731 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4835049 Magnetic recording medium Ryosuke Isobe 1989-05-30
4818606 Highly running-endurant magnetic recording medium Noboru Koyama, Ryosuke Isobe 1989-04-04