SM

Shohji Maruyama

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
Overall (All Time): #2,192,780 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6762008 Optical recording medium Tsutomu Satoh, Tatsuya Tomura, Noboru Sasa, Yasunobu Ueno, Yasuhiro Higashi +1 more 2004-07-13
6197477 Optical recording medium Tsutomu Satoh, Yasunobu Ueno, Tatsuya Tomura, Noboru Sasa, Yasuhiro Higashi 2001-03-06