YI

Yasufumi Ikkai

Sumitomo Electric Industries: 3 patents #374 of 4,178Top 9%
Overall (2004): #17,977 of 270,089Top 7%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6836045 Electrical motor Hiroshi Murakami, Yuichiro Sadanaga, Taro Kishibe, Shinichiro Kawano, Toshiyuki Tamamura +2 more 2004-12-28
6759778 Electric vehicle using a motor Noriyoshi Nishiyama, Tomokazu Nakamura, Yukio Honda, Hiroshi Murakami, Shinichiro Kawano 2004-07-06
6741002 Motor having a rotor with interior split-permanent-magnet Noriyoshi Nishiyama, Tomokazu Nakamura, Masaki Ogushi, Yasuhiro Kondo 2004-05-25