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Eiji Narumi

OE Otis Elevator: 3 patents #506 of 1,840Top 30%
SC Sawafuji Electric Co.: 2 patents #21 of 108Top 20%
Overall (All Time): #1,055,530 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5533595 Traction-type elevator Masao Iwasa 1996-07-09
5276293 Tubular linear motor primary element Keiichi Kohroki 1994-01-04
5270603 Coil-end supporting apparatus and a rotary-machinery stator equipped with same 1993-12-14
5249764 Coil-end supporting apparatus and a rotary-machinery stator equipped with same 1993-10-05
5217091 Mechanical overspeed safety device Tsutomu Shiina 1993-06-08