SK

Shigeru Kawahara

NC Nippon Tungsten Co.: 3 patents #14 of 139Top 15%
SC Sumitomo Special Metals Co.: 3 patents #65 of 262Top 25%
Overall (All Time): #1,634,061 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5914285 Substrate material for a magnetic head Toyoshige Sasaki, Shigeki Mohri, Osamu Nakano, Shin Mishima, Naoyuki Okamoto 1999-06-22
5595946 Substrate materials for magnetic heads with low flying height Shinji Tsujimoto, Shin Mishima, Shigeki Mohri, Toyoshige Sasaki, Michito Miyahara +1 more 1997-01-21
5595947 Substrate materials for magnetic head Shinji Tsujimoto, Shin Mishima, Toshiaki Wada, Michito Miyahara, Toyoshige Sasaki +2 more 1997-01-21