HK

Hideki Kuwajima

Sumitomo Electric Industries: 63 patents #97 of 21,551Top 1%
Tdk: 13 patents #431 of 3,796Top 15%
PA Panasonic: 7 patents #3,841 of 21,108Top 20%
S( Sae Magnetics (H.K.): 2 patents #193 of 585Top 35%
Overall (All Time): #23,897 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 76–78 of 78 patents

Patent #TitleCo-InventorsDate
5166843 Compact helical scan tape recording and/or reproducing apparatus — 1992-11-24
4661864 Magnetic recording and reproducing apparatus — 1987-04-28
4595961 Helical scan type tape recording reproducing apparatus having a part-cylindrical drum — 1986-06-17