Inventor
TAKEI SEIJI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “TAKEI SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON THOMPSON CO LTD
42 patentsUS5831352ANov 3, 1998
Drive apparatus of a direct current linear motor having two or more movable tables
NIPPON THOMPSON CO LTD62 citations96
US5606256AFeb 25, 1997
Linear encoder and a guide unit on which it is equipped
NIPPON THOMPSON CO LTD79 citations96
US5207115AMay 4, 1993
X-y drive apparatus
NIPPON THOMPSON CO LTD56 citations96
US5789892AAug 4, 1998
XY drive apparatus equipped with a linear electromagnetic actuator
NIPPON THOMPSON CO LTD33 citations93
US5701042ADec 23, 1997
Linear direct current motor
NIPPON THOMPSON CO LTD50 citations93
US5684344ANov 4, 1997
Drive unit
NIPPON THOMPSON CO LTD56 citations93
US5675195AOct 7, 1997
Linear electromagnetic actuator and a drive unit on which it is equipped
NIPPON THOMPSON CO LTD19 citations93
US5647245AJul 15, 1997
Drive apparatus having a ball screw using ultrasonic motors concentric with its nuts
NIPPON THOMPSON CO LTD41 citations93
US5613403AMar 25, 1997
Drive apparatus equipped with a ball screw and an XY drive apparatus containing said drive apparatus
NIPPON THOMPSON CO LTD42 citations93
US5565718AOct 15, 1996
Direct current linear motor and a guide unit on which it is equipped
NIPPON THOMPSON CO LTD32 citations93
US5540113AJul 30, 1996
Drive apparatus equipped with a ball screw
NIPPON THOMPSON CO LTD21 citations93
US5530303AJun 25, 1996
Linear direct current motor
NIPPON THOMPSON CO LTD28 citations93
US5476324ADec 19, 1995
Spline bearing
NIPPON THOMPSON CO LTD20 citations93
US5473992ADec 12, 1995
Braking apparatus and a drive unit equipped with said apparatus and a linear motor
NIPPON THOMPSON CO LTD23 citations93
US5373754ADec 20, 1994
Ball screw
NIPPON THOMPSON CO LTD25 citations93
US5359245AOct 25, 1994
Guide unit and a direct drive unit on which it is equipped
NIPPON THOMPSON CO LTD27 citations93
US5357819AOct 25, 1994
Drive apparatus
NIPPON THOMPSON CO LTD22 citations93
US5357158AOct 18, 1994
Direct current linear motor and a direct drive unit on which it is equipped
NIPPON THOMPSON CO LTD36 citations93
US5326335AJul 5, 1994
Drive apparatus
NIPPON THOMPSON CO LTD27 citations93
US5302873AApr 12, 1994
Linear pulse motor having a high resolution
NIPPON THOMPSON CO LTD25 citations93
US5229669AJul 20, 1993
Compact linear motor drive unit
NIPPON THOMPSON CO LTD30 citations93
US4763886AAug 16, 1988
XY-positioning table
NIPPON THOMPSON CO LTD50 citations93
US5575565ANov 19, 1996
Rolling guide unit
NIPPON THOMPSON CO LTD26 citations92
US5411334AMay 2, 1995
Rolling guide unit
NIPPON THOMPSON CO LTD33 citations92
US5216932AJun 8, 1993
X-y drive apparatus
NIPPON THOMPSON CO LTD20 citations82
US5713136AFeb 3, 1998
Object measuring apparatus
NIPPON THOMPSON CO LTD11 citations74
US5696411ADec 9, 1997
Linear direct current motor
NIPPON THOMPSON CO LTD10 citations74
US5648691AJul 15, 1997
Linear direct current motor
NIPPON THOMPSON CO LTD14 citations74
US5513916AMay 7, 1996
Linear motion rolling guide unit having mounting arrangement adapted to eliminate track deformation
NIPPON THOMPSON CO LTD16 citations74
US5505104AApr 9, 1996
Drive apparatus and XY table on which it is equipped
NIPPON THOMPSON CO LTD8 citations74
US5416396AMay 16, 1995
Linear encoder and a guide unit on which it is equipped
NIPPON THOMPSON CO LTD16 citations74
US5388914AFeb 14, 1995
Linear motion rolling guide unit
NIPPON THOMPSON CO LTD8 citations74
US5345832ASep 13, 1994
Drive apparatus
NIPPON THOMPSON CO LTD12 citations74
US5326197AJul 5, 1994
Drive apparatus
NIPPON THOMPSON CO LTD13 citations74
US5292211AMar 8, 1994
Drive apparatus and XY drive apparatus on which it is equipped
NIPPON THOMPSON CO LTD17 citations74
US5217214AJun 8, 1993
Positioning table assembly
NIPPON THOMPSON CO LTD7 citations74
US4916963AApr 17, 1990
Moving table unit
NIPPON THOMPSON CO LTD17 citations74
US4897588AJan 30, 1990
Double motor feed control system
NIPPON THOMPSON CO LTD14 citations74
US5344237ASep 6, 1994
Linear motion rolling contact guide unit having opposite roller and ball contacts
NIPPON THOMPSON CO LTD10 citations71
US5649769AJul 22, 1997
Linear motion rolling guide unit
NIPPON THOMPSON CO LTD5 citations63
US5261860ANov 16, 1993
Drive apparatus
NIPPON THOMPSON CO LTD2 citations63
US5469030ANov 21, 1995
Direct current motor drive apparatus
NIPPON THOMPSON CO LTD3 citations62