KD

Kazuhiko Doi

OE Otis Elevator: 4 patents #397 of 1,840Top 25%
📍 Narita, JP: #49 of 151 inventorsTop 35%
Overall (All Time): #1,292,126 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5396161 Temperature compensator circuit for an induction motor Masayuki Mori 1995-03-07
5347206 Vector control method of induction motor Koji Yamada, Masayuki Mori 1994-09-13
4982816 Speed control system for elevators Yasutami Kito 1991-01-08
4903187 Control for variable frequency drive Yasutami Kito 1990-02-20