MK

Masayoshi Kumagawa

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,189,583 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6718120 Magnetic recording and reproduction method and apparatus Yoichiro Senshu 2004-04-06
6671455 Magnetic recording apparatus and method therefor, and magnetic recording and reproduction apparatus and method therefor Takafumi Kobayashi, Ryuji Abe, Tomoyuki Miyakoshi 2003-12-30