YT

Yasuaki Tohyama

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,189,040 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6711345 Data stream recording/reproducing apparatus, recording/reproducing method, and recording medium Etsuto Nakatsu, Atsuo Ochi, Naoshi Usuki 2004-03-23
5392378 Speed controlling system and a predictor 1995-02-21