SO

Shirou Okayama

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
HE Hitachi Tool Engineering: 1 patents #13 of 41Top 35%
Overall (All Time): #3,603,080 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6333103 Aluminum oxide-coated article Toshio Ishii, Masayuki Gonda, Hiroshi Ueda, Nobuhiko Shima 2001-12-25