RK

Ryoichi Kaiwa

Sumitomo Electric Industries: 2 patents #504 of 3,352Top 20%
Overall (2002): #43,318 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6490436 Battery pack removing device Tetsuo Hirabayashi, Tetsuya Kubo, Jun Sato 2002-12-03
6451474 Resiliently deformable battery pack Katsumi Kozu, Shigeru Kajiwara, Shoji Konishi, Takashi Takemura, Junji Fujiwara +1 more 2002-09-17