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Osamu Koizumi

SO Sony: 2 patents #161 of 1,361Top 15%
HI Hitachi: 1 patents #867 of 2,942Top 30%
HC Hitachi Automotive Engineering Co.: 1 patents #12 of 57Top 25%
Overall (1997): #12,470 of 185,788Top 7%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5699209 Data cartridge drive 1997-12-16
5690224 Storage case for tape cassette 1997-11-25
5678760 Cooling system of electric automobile and electric motor used therefor Masanori Muso, Keiji Oda, Hiroshi Hamano 1997-10-21