YH

Yutaka Hamada

NK Nippon Carbide Kogyo: 2 patents #2 of 9Top 25%
Overall (2005): #27,715 of 245,428Top 15%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6942350 Triangular-pyramidal cube-corner retro-reflective sheeting Ikuo Mimura, Takehito Takahashi 2005-09-13
6883921 Retroreflection device Ikuo Mimura 2005-04-26