KA

Keiji Akiyama

Fujitsu Limited: 20 patents #1,402 of 24,456Top 6%
SO Sony: 4 patents #8,966 of 25,231Top 40%
FU Fujifilm: 1 patents #3,076 of 4,519Top 70%
JG Jgc: 1 patents #137 of 393Top 35%
Overall (All Time): #154,044 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
4845008 Light-sensitive positive working, o-guinone diazide presensitized plate with mixed solvent Akira Nishioka, Toshimi Hirano 1989-07-04