YH

Yasuhiro Hirafune

SO Sony: 3 patents #10,744 of 25,231Top 45%
SI Sumitomo Light Metal Industries: 1 patents #103 of 254Top 45%
Overall (All Time): #1,625,971 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6098649 Waste processing apparatus, waste recovery system and liquid container Tsutomu Noguchi, Minoru Matsushima, Hiraku Sugiki 2000-08-08
6015627 Magnetic head drum and method of manufacturing same Akio Kikuchi 2000-01-18
5863002 Waste processing apparatus, waste recovery system and liquid container Tsutomu Noguchi, Minoru Matsushima, Hiraku Sugiki 1999-01-26