KK

Kazumasa Kumagai

NE Nec: 7 patents #2,006 of 14,502Top 15%
Overall (All Time): #761,506 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6267824 Method for manufacturing a magnetoresistive effect composite having a pole containing Co-M Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 2001-07-31
6154345 Magnetoresistive effect composite head Nobuyuki Ishiwata, Kiyotaka Shimabayashi, Sinsaku Saitho, Hiroaki Tachibana, Tsutomu Ishi +1 more 2000-11-28
6141859 Method for making a merged head device Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 2000-11-07
6125009 Magnetoresistive effect composite head having a pole containing Co-M Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 2000-09-26
6057991 Thin film magnetic head with an improved surface to reduce the occurrence of head crash Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 2000-05-02
6055137 Magnetoresistive effect composite head with configured pole tip Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 2000-04-25
5938941 Magnetoresistance effect composite head and method of forming the same Nobuyuki Ishiwata, Tsutomu Ishi, Kiyokazu Nagahara 1999-08-17