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Akiho Doi

IK Iwasaki Tsushinki Kabushiki Kaisha: 2 patents #6 of 35Top 20%
Overall (All Time): #2,352,009 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4502138 Synchronization system for key telephone system Norio Saneyoshi 1985-02-26
4490820 Reception system for key telephone system Norio Saneyoshi 1984-12-25