OKUMA CORPORATION

MOLD MANUFACTURING METHOD

#2 | 2024-06-13 ✅ Patent 12,463,569 granted on 2025-11-04

US20240195334A1

CONTROL DEVICE FOR THREE-PHASE ALTERNATING CURRENT MOTOR

#3 | 2024-05-09 ✅ Patent 12,547,155 granted on 2026-02-10

US20240152117A1

CELL CONTROLLER

#4 | 2023-10-12 ✅ Patent 12,323,018 granted on 2025-06-03

US20230327532A1

Three-phase induction motor

#5 | 2023-04-27 ✅ Patent 12,081,155 granted on 2024-09-03

US20230126273A1

Motor control device and abnormality detection method for current detector provided in motor control device

#6 | 2023-04-06 ✅ Patent 12,231,065 granted on 2025-02-18

US20230107710A1

Position control device

#7 | 2023-03-30 ✅ Patent 12,373,968 granted on 2025-07-29

US20230101718A1

THREE-DIMENSIONAL SHAPE MEASUREMENT SYSTEM AND MACHINE TOOL SYSTEM

#8 | 2022-08-04 ✅ Patent 11,955,864 granted on 2024-04-09

US20220247297A1

Linear motor

#9 | 2022-05-05 ✅ Patent 11,579,198 granted on 2023-02-14

US20220137137A1

Inverter system with motor insulaton inspection function

#10 | 2022-04-21 ✅ Patent 11,841,250 granted on 2023-12-12

US20220120591A1

Encoder abnormality diagnosis device

#11 | 2021-12-09 ✅ Patent 12,076,852 granted on 2024-09-03

US20210379772A1

Gripper device

#12 | 2021-08-12 ✅ Patent 11,728,711 granted on 2023-08-15

US20210249938A1

Motor control device

#13 | 2021-07-29 ✅ Patent 11,602,811 granted on 2023-03-14

US20210229226A1

Machine tool

#14 | 2021-07-22 ✅ Patent 11,874,678 granted on 2024-01-16

US20210223803A1

Vibration control device and method using adjustable command filter and adjustable servo-amplifier

#15 | 2021-02-11 ✅ Patent 11,571,775 granted on 2023-02-07

US20210039212A1

Machine tool

#16 | 2020-10-08 ✅ Patent 11,125,608 granted on 2021-09-21

US20200319021A1

Frequency identifying device

#17 | 2020-09-24 ✅ Patent 12,005,569 granted on 2024-06-11

US20200298418A1

Moisture intrusion detection system and moisture intrusion detection method

#18 | 2020-07-30 ✅ Patent 11,712,770 granted on 2023-08-01

US20200238466A1

Machine tool

#19 | 2020-06-25 ✅ Patent 11,680,966 granted on 2023-06-20

US20200200808A1

Power calculation apparatus

#20 | 2020-06-11 ✅ Patent 11,048,235 granted on 2021-06-29

US20200183361A1

Controller of machine tool

#21 | 2020-05-28 ✅ Patent 11,507,062 granted on 2022-11-22

US20200166910A1

Numerical control apparatus

#22 | 2020-04-30 ✅ Patent 11,648,670 granted on 2023-05-16

US20200130184A1

Machine tool system

#23 | 2020-04-30 ✅ Patent 11,717,925 granted on 2023-08-08

US20200130123A1

Machine tool

#24 | 2020-04-16 ✅ Patent 11,426,831 granted on 2022-08-30

US20200114482A1

Cooling liquid feeder

#25 | 2020-04-09 ✅ Patent 11,254,010 granted on 2022-02-22

US20200108505A1

Machine tool

#26 | 2020-04-09 ✅ Patent 11,254,007 granted on 2022-02-22

US20200108503A1

Machine tool

#27 | 2020-03-26 ✅ Patent 11,007,656 granted on 2021-05-18

US20200094423A1

Robot unit

#28 | 2020-03-12 ✅ Patent 11,712,769 granted on 2023-08-01

US20200078887A1

Collecting mechanism and collecting method for collecting machined portion

#29 | 2020-03-05 ✅ Patent 10,908,581 granted on 2021-02-02

US20200073357A1

Numerical control apparatus and numerical control method

#30 | 2020-02-20 ✅ Patent 11,190,122 granted on 2021-11-30

US20200059185A1

Motor driving apparatus

#31 | 2020-01-16 ✅ Patent 11,038,409 granted on 2021-06-15

US20200021177A1

Rotor of synchronous motor

#32 | 2020-01-16 ✅ Patent 11,169,005 granted on 2021-11-09

US20200018620A1

Sensor substrate for electromagnetic-induction type position sensor and method of manufacturing sensor substrate

#33 | 2020-01-09 ✅ Patent 11,526,144 granted on 2022-12-13

US20200012255A1

Numerical control device for machining tool

#34 | 2019-09-19 ✅ Patent 11,079,734 granted on 2021-08-03

US20190286094A1

Position control system of a machine tool control drive based on motor and object position

#35 | 2019-09-19 ✅ Patent 11,073,561 granted on 2021-07-27

US20190285698A1

Insulation deterioration detection device for electric motor

#36 | 2019-08-29 ✅ Patent 11,027,390 granted on 2021-06-08

US20190262957A1

Machine tool system and stocker

#37 | 2018-11-22 ✅ Patent 11,169,512 granted on 2021-11-09

US20180335770A1

Operation monitoring device and a control program therefor

#38 | 2018-09-06 ✅ Patent 11,027,417 granted on 2021-06-08

US20180250809A1

Machine tool

#39 | 2018-05-10 ✅ Patent 10,889,012 granted on 2021-01-12

US20180126567A1

Machine tool

#40 | 2017-11-16 ✅ Patent 10,688,612 granted on 2020-06-23

US20170329316A1

Machine tool

#41 | 2017-11-16 ✅ Patent 10,307,877 granted on 2019-06-04

US20170326700A1

Machine tool

#42 | 2016-11-24 ✅ Patent 10,545,033 granted on 2020-01-28

US20160341574A1

Multi-turn detector

#43 | 2016-09-22 ✅ Patent 9,639,078 granted on 2017-05-02

US20160274563A1

Tandem position control device

#44 | 2016-06-16 ✅ Patent 10,302,511 granted on 2019-05-28

US20160169755A1

Cogging torque measuring method for motor

#45 | 2016-04-28 ✅ Patent 11,243,676 granted on 2022-02-08

US20160117090A1

Numerical control system for machine tool

#46 | 2016-03-24 ✅ Patent 10,371,139 granted on 2019-08-06

US20160084724A1

Hydraulic pressure control device

#47 | 2015-10-29 ✅ Patent 9,610,637 granted on 2017-04-04

US20150306671A1

Tailstock control device

#48 | 2014-04-03 ✅ Patent 9,122,257 granted on 2015-09-01

US20140094953A1

Thread cutting machine

#49 | 2014-01-02 ✅ Patent 9,441,942 granted on 2016-09-13

US20140002064A1

Resolver and multiple-rotation detector

#50 | 2013-09-12 ✅ Patent 9,190,946 granted on 2015-11-17

US20130234643A1

Spindle positioning device

#51 | 2013-08-29 ✅ Patent 9,110,455 granted on 2015-08-18

US20130226355A1

Numerical control machine

#52 | 2013-08-01 ✅ Patent 9,024,548 granted on 2015-05-05

US20130193901A1

Method of controlling linear motor

#53 | 2013-04-25 ✅ Patent 8,988,033 granted on 2015-03-24

US20130099719A1

Machine tool

#54 | 2013-04-18 ✅ Patent 9,829,500 granted on 2017-11-28

US20130096868A1

Speed monitoring device

#55 | 2013-01-17

US20130015742A1

SYNCHRONOUS MOTOR

#56 | 2013-01-10 ✅ Patent 9,134,143 granted on 2015-09-15

US20130013250A1

Absolute position detector with abnormality detection function

#57 | 2012-11-08 ✅ Patent 9,136,737 granted on 2015-09-15

US20120280678A1

Stator and resolver

#58 | 2012-08-30 ✅ Patent 9,188,972 granted on 2015-11-17

US20120221139A1

Numerical control apparatus having vibration suppression capabilities

#59 | 2012-07-12 ✅ Patent 8,836,195 granted on 2014-09-16

US20120175990A1

Three-phase electric-motor winding with differing turn numbers forming fractional effective turns

#60 | 2012-05-31 ✅ Patent 8,476,851 granted on 2013-07-02

US20120133311A1

Motor magnetic pole position correction method

#61 | 2011-12-29 ✅ Patent 8,823,367 granted on 2014-09-02

US20110316530A1

Rotation angle detection apparatus

#62 | 2011-09-29 ✅ Patent 8,452,425 granted on 2013-05-28

US20110238221A1

Position control device

#63 | 2011-09-29 ✅ Patent 8,531,149 granted on 2013-09-10

US20110234141A1

Control device for machine tool

#64 | 2011-06-30 ✅ Patent 8,575,922 granted on 2013-11-05

US20110156699A1

Multi-turn angle sensor

#65 | 2011-03-03 ✅ Patent 8,790,054 granted on 2014-07-29

US20110052342A1

Spindle attachment device

#66 | 2010-09-09 ✅ Patent 7,944,095 granted on 2011-05-17

US20100225180A1

Linear motor with integrally formed stator

#67 | 2010-04-08 ✅ Patent 8,126,585 granted on 2012-02-28

US20100087948A1

Collision preventing device incorporated in numerical control apparatus

#68 | 2009-12-10 ✅ Patent 7,982,425 granted on 2011-07-19

US20090302796A1

Position control apparatus

#69 | 2009-10-01 ✅ Patent 8,397,872 granted on 2013-03-19

US20090242330A1

Lubricant recovery device

#70 | 2009-09-03 ✅ Patent 8,164,223 granted on 2012-04-24

US20090218893A1

Linear motor mounting structure

#71 | 2009-08-13 ✅ Patent 8,156,850 granted on 2012-04-17

US20090199685A1

Tailstock control device

#72 | 2009-05-07 ✅ Patent 8,065,916 granted on 2011-11-29

US20090114020A1

Bearing state diagnostic apparatus

#73 | 2009-04-30 ✅ Patent 8,082,048 granted on 2011-12-20

US20090112376A1

Position controlling device

#74 | 2009-03-26 ✅ Patent 8,019,460 granted on 2011-09-13

US20090082900A1

Numerical controller of machine tool

#75 | 2008-09-25 ✅ Patent 7,508,199 granted on 2009-03-24

US20080231266A1

Absolute encoder

#76 | 2008-09-18 ✅ Patent 7,711,508 granted on 2010-05-04

US20080228423A1

Position detector

#77 | 2008-06-19 ✅ Patent 7,571,669 granted on 2009-08-11

US20080141836A1

Machining apparatus for noncircular shapes

#78 | 2008-05-15 ✅ Patent 8,302,737 granted on 2012-11-06

US20080110700A1

Mechanical engineering

Main-shaft lubrication device

#79 | 2008-05-01 ✅ Patent 7,805,285 granted on 2010-09-28

US20080103741A1

Machining simulation system

#80 | 2008-03-06 ✅ Patent 7,612,513 granted on 2009-11-03

US20080054833A1

Control device equipped with motor protection function

#81 | 2008-02-07 ✅ Patent 7,792,603 granted on 2010-09-07

US20080033699A1

Program and method for generating approximate curve from approximate point group data

#82 | 2008-01-03 ✅ Patent 7,839,029 granted on 2010-11-23

US20080001481A1

Linear motor

#83 | 2007-08-07 ✅ Patent 7,254,770 granted on 2007-08-07

US10442169

Sensor apparatus and monitoring method of control system using detected data from sensor apparatus

#84 | 2007-05-31 ✅ Patent 7,352,294 granted on 2008-04-01

US20070120713A1

Absolute position detector

#85 | 2006-06-13 ✅ Patent 7,062,352 granted on 2006-06-13

US10438894

Method for displaying tool locus in NC data and method for analyzing NC data

#86 | 2006-04-13 ✅ Patent 7,485,082 granted on 2009-02-03

US20060079384A1

Tool changer and machine tool equipped with the tool changer

#87 | 2006-04-13 ✅ Patent 7,154,198 granted on 2006-12-26

US20060076839A1

Linear motor

#88 | 2006-02-23 ✅ Patent 7,689,300 granted on 2010-03-30

US20060041325A1

Numerical control unit

#89 | 2006-01-24 ✅ Patent 6,988,860 granted on 2006-01-24

US10347635

Cutting tool and cutting method using the cutting tool

#90 | 2006-01-19 ✅ Patent 7,673,298 granted on 2010-03-02

US20060015592A1

Software object verification method for real time system

#91 | 2006-01-05 ✅ Patent 7,561,927 granted on 2009-07-14

US20060004479A1

Numerical controller which can call program described in script language

#92 | 2006-01-05 ✅ Patent 7,049,924 granted on 2006-05-23

US20060001518A1

Electromagnetic induction type position sensor

#93 | 2005-10-13 ✅ Patent 7,167,772 granted on 2007-01-23

US20050228533A1

Machining time calculating apparatus

#94 | 2005-06-30 ✅ Patent 7,151,336 granted on 2006-12-19

US20050140238A1

Rotor of reluctance motor

#95 | 2005-03-31 ✅ Patent 7,026,779 granted on 2006-04-11

US20050067996A1

Motor control apparatus for controlling operation of mover of motor

#96 | 2005-03-10 ✅ Patent 6,998,810 granted on 2006-02-14

US20050052149A1