HK

Hiroshi Kiyosugi

HC Hitachi Building Systems Co.: 1 patents #12 of 53Top 25%
Overall (All Time): #3,480,433 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6742634 Magnetic brake system and elevator trouble detection system Yasushi Watanabe, Mikio Nakai, Yuki Ishida, Toshiaki Matsuo, Takashi Sekiya 2004-06-01