HS

Hiroyuki Sumiya

HI Hitachi: 1 patents #856 of 3,149Top 30%
HC Hitachi Instruments Engineering Co.: 1 patents #1 of 23Top 5%
Overall (1994): #124,389 of 165,921Top 75%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5278407 Secondary-ion mass spectrometry apparatus using field limiting method Yoshinori Ikebe, Hifumi Tamura, Akemi Furuki 1994-01-11