YU

Yoshimasa Utsumi

SO Sony: 2 patents #335 of 2,234Top 15%
Overall (2002): #33,974 of 266,432Top 15%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6501163 Semiconductor memory card 2002-12-31
6400667 Recording/reproduction method and apparatus in which sub data is written/read in periods during which writing/reading of main data is not performed Yasuaki Maeda, Hideki Nagashima, Tsutomu Harada 2002-06-04