Inventor
TAKAHATA RYOICHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHATA RYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOYO SEIKO CO
11 patentsUS5314868AMay 24, 1994
Bearing device
KOYO SEIKO CO43 citations92
US5739606AApr 14, 1998
Superconducting bearing device
KOYO SEIKO CO27 citations91
US5330967AJul 19, 1994
Superconducting bearing device stabilized by trapped flux
KOYO SEIKO CO38 citations91
US5763971AJun 9, 1998
Superconducting bearing device
KOYO SEIKO CO35 citations90
US5736802AApr 7, 1998
Magnetic bearing device
KOYO SEIKO CO10 citations74
US5254528AOct 19, 1993
Brake device including magnet and superconductor
KOYO SEIKO CO9 citations74
US5801469ASep 1, 1998
Superconducting bearing device
KOYO SEIKO CO14 citations72
US5633548AMay 27, 1997
Method for setting up a superconducting bearing device
KOYO SEIKO CO13 citations72
US5446018AAug 29, 1995
Superconducting bearing device
KOYO SEIKO CO17 citations72
US5438038AAug 1, 1995
Superconducting bearing device stabilized by trapped flux
KOYO SEIKO CO14 citations72
US5111140AMay 5, 1992
Apparatus and method for measuring repulsive displacement and repulsive force characteristics of a superconductor with respect to a magnet
KOYO SEIKO CO5 citations63
HITACHI LTD
6 patentsUS6838798B2Jan 4, 2005
Permanent magnet type rotating electric machine
HITACHI LTD16 citations92
US6552461B2Apr 22, 2003
Permanent magnet type rotating electric machine
HITACHI LTD18 citations92
US6541880B2Apr 1, 2003
Linear motor
HITACHI LTD21 citations92
US7057327B2Jun 6, 2006
Vehicular alternator
HITACHI LTD17 citations83
US6759777B2Jul 6, 2004
Permanent magnet type electric rotating machine
HITACHI LTD9 citations73
US6759776B2Jul 6, 2004
Permanent magnet type electric rotating machine
HITACHI LTD12 citations73