HS

Hiroyasu Shichi

HH Hitachi High-Technologies: 40 patents #31 of 1,917Top 2%
HI Hitachi: 35 patents #681 of 28,497Top 3%
HS Hitachi High-Tech Science: 2 patents #65 of 167Top 40%
Overall (All Time): #24,441 of 4,157,543Top 1%
77
Patents All Time

Issued Patents All Time

Showing 76–77 of 77 patents

Patent #TitleCo-InventorsDate
4687930 Ion beam apparatus Hifumi Tamura, Shigehiko Yamamoto, Toru Ishitani 1987-08-18
4687938 Ion source Hifumi Tamura 1987-08-18