Inventor
IEKI ATSUSHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “IEKI ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKUMA MACHINERY WORKS LTD
13 patentsUS5981942ANov 9, 1999
Optical encoder for detecting relative displacement based on signals having predetermined phase differences
OKUMA MACHINERY WORKS LTD25 citations92
US5801378ASep 1, 1998
Optical encoder diffraction gratings for eliminating diffracted light components
OKUMA MACHINERY WORKS LTD43 citations92
US5748373AMay 5, 1998
Scale and encoder including differently spaced pattern lines
OKUMA MACHINERY WORKS LTD22 citations92
US5260568ANov 9, 1993
Absolute position detector with diffraction grating windows and spot position detection
OKUMA MACHINERY WORKS LTD50 citations92
US5068530ANov 26, 1991
Optical encoder
OKUMA MACHINERY WORKS LTD41 citations92
US6094307AJul 25, 2000
Optical grating and encoder
OKUMA MACHINERY WORKS LTD17 citations83
US5737069AApr 7, 1998
Position detecting apparatus of optical interferometry
OKUMA MACHINERY WORKS LTD7 citations74
US5750984AMay 12, 1998
Optical encoder used for position detection based upon a plurality of signals
OKUMA MACHINERY WORKS LTD13 citations73
US5260769ANov 9, 1993
Position detector
OKUMA MACHINERY WORKS LTD17 citations73
US5182613AJan 26, 1993
Position detecting apparatus generating periodic detection signals having equal third and fifth harmonic components
OKUMA MACHINERY WORKS LTD17 citations73
US5170221ADec 8, 1992
Parallel light ray measuring apparatus
OKUMA MACHINERY WORKS LTD12 citations73
US5177356AJan 5, 1993
Optical encoder
OKUMA MACHINERY WORKS LTD4 citations63
US9448089B2Sep 20, 2016
Optical encoder
OKUMA MACHINERY WORKS LTD0 citations41
HORIBA STEC CO LTD
5 patentsUS9823667B2Nov 21, 2017
Flow rate control apparatus, storage medium storing program for flow rate control apparatus and flow rate control method
HORIBA STEC CO LTD5 citations72
US10323771B2Jun 18, 2019
Fluid control valve and recording medium with control program thereof recorded therein
HORIBA STEC CO LTD4 citations68
US10480669B2Nov 19, 2019
Valve device and valve control device
HORIBA STEC CO LTD0 citations51
US10877492B2Dec 29, 2020
Flow path forming structure, flow rate measuring device and flow rate control device
HORIBA STEC CO LTD0 citations41
US10302476B2May 28, 2019
Flow rate control device
HORIBA STEC CO LTD0 citations41