RH

Ryoichi Hirota

Pioneer Electronic: 1 patents #1,093 of 1,840Top 60%
Overall (All Time): #3,815,332 of 4,157,543Top 95%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5179547 Phase change optical information recording medium including means for preventing movement of the recorded portion Toshihiro Komaki, Hideo Kudo, Tomonori Ishizuki, Masahiro Katsumura, Seishi Maita 1993-01-12