Names without a link are companies not yet registered in OpenBizGraph
§05
Network
NETWORK
Loading the relationship graph...
Drag to move · click to open
§06
History
69 EVENTS
Eiichi Okuma started manufacturing and selling noodle-making machines.
Eiichi Okuma founded "Okuma Noodle Machine Company" and started manufacturing and selling noodle machines. : Noodle machine : Noodle machine
Started manufacturing machine tools.
Start of manufacturing of OS-type general lathes.
Okuma Iron Works Co., Ltd. established. : Started manufacturing OS type ordinary lathes. : OS type ordinary lathe
Our machine tool production volume ranked first in Japan.
Developed an absolute position detection type NC device (OSP) in-house, becoming the only comprehensive mechatronics manufacturer in Japan.
Developed our own absolute position detection NC device (OSP). : Became Japan's only comprehensive mechatronic manufacturer.
Started manufacturing LA-N type NC lathes.
Started manufacturing LA-N type NC lathes. : LA-N type NC lathe : LA-N type NC lathe
Started manufacturing MCD type gate-type machining centers.
Construction of Ooguchi assembly plant in Aichi Prefecture completed.
Completed large assembly plant (Aichi Prefecture).
Since then, all our NC machines have been equipped with CNC devices.
Developed our own CNC (Computerized NC). : All subsequent NC machines from our company are equipped with CNC devices. : OSP2000 type CNC device : OSP2000 type CNC device
Started manufacturing MC-H type horizontal machining centers.
Started manufacturing LB15 type NC lathes.
Started manufacturing LB15 type CNC lathes. : LB15 type NC lathe : LB15 type CNC lathe
Established OKUMA MACHINERY INC. sales company in the United States.
Established OKUMA MACHINE TOOLS INC. production base in the United States.
Established sales company OKUMA MACHINERY HANDELS GmbH and service company OKUMA SERVICE FUR WERKZEUGMASCHINEN GmbH in Germany.
Completed Phase 1 construction of Kani Factory. : Established OKUMA MACHINERY HANDELS GmbH sales company in Germany, and OKUMA SERVICE FUR WERKZEUGMASCHINEN GmbH service company.
Merged with OMG and OSG in Germany to establish a new company, OKUMA EUROPE GmbH.
German OMG and OSG merged, forming new company OKUMA EUROPE GmbH. : OKUMA EUROPE GmbH : OKUMA EUROPE GmbH
Renamed to Okuma Corporation.
Merged with OMI and OMT in the United States.
American OMI and OMT merged, establishing OKUMA AMERICA CORPORATION. : OKUMA AMERICA CORPORATION : OKUMA AMERICA CORPORATION
Established Taidong Okuma Co., Ltd.
Joint venture company 'Daido Okuma Co., Ltd.' established in the Republic of China (Taiwan).
Established North One Okuma (Beijing) Machine Tool Co., Ltd.
Established production base 'North First Okuma (Beijing) Machine Tool Co., Ltd.' in China.
Core technology of the Thermo-Friendly Concept.
Core of the thermally friendly concept, 'Thermal Displacement Compensation System', received the Japan Society of Mechanical Engineers award.
Okuma Holdings, Okuma, Okuma Toyokawa Machinery, and Okuma Engineering merged into four companies.
Merger of Okuma Holdings, Okuma, Okuma Toyowa Machinery, and Okuma Engineering.
Global CS Center and headquarters logistics center completed. : Global CS Center : Global CS Center
Headquarters completed.
Integrated production plant DS1 (Dream Site One) for multi-axis machines and NC lathes at headquarters completed. : DS1 : DS1
Developed next-generation intelligent CNC OSP suite.
"OPEN POSSIBILITIES"
Established brand message 'OPEN POSSIBILITIES'.
Established Aerospace Center of Excellence at headquarters.
Opened Aerospace Center of Excellence, a manufacturing service support base for the aerospace industry, at headquarters.
Headquarters parts factory completed.
Completed parts factory of integrated production plant DS2 (Dream Site Two) for small to medium-sized lathes at headquarters.
Developed next-generation robot system 'ARMROID'. : ARMROID : ARMROID
New generation smart factory completed at Kani Factory.
Completed new generation smart factory DS3 (Dream Site Three) at Kani factory. : Opened Okuma Northeast CS Center.
Developed 5-axis processing gate-shaped machining center 'MCR-BV'.
Opened West Japan CS Center.
Developed next-generation CNC OSP-P500.
Gumma Factory established. Ningbo Technical Center established in Shanghai, China. East Japan CS Center opened.
Opened Gunma factory. : Opened Ningbo Technical Center in Shanghai, China. : Opened East Japan CS Center.
Opened Kyushu CS Center.
§07
News
9 ARTICLES
MU-350V, 24-Hour Continuous Production Automation Cell
Oakuma has developed the MU-350V, a 5-axis controlled vertical machining center that balances high precision, high productivity, and energy efficiency. Equipped with an AWC that holds up to 33 work holders and an ATC that can change 120 tools as standard, it achieves unmanned operation for 24 hours on a class-minimum footprint. Targeting medium and small parts with a diameter of 360 mm or less, it aims to improve labor reduction through process consolidation and enhance quality and productivity for small batch, multi-product production.
Received the Precision Engineering Society Technical Award for Main Shaft Thermal Displacement Control Technology
The main shaft thermal displacement control technology developed by five members of Oakuma Co., Ltd.'s research and development department earned the 46th Precision Engineering Society Technical Award. This technology balances energy conservation with high-precision machining, reducing the power consumption of the main shaft cooling system by 56% while maintaining machining accuracy.
Notice of Oakma Inc.'s August Closure Period
Oakma Inc. will suspend services from August 11 to 16, 2026. Inquiries made during the closure period will be handled after the closure. We apologize for any inconvenience caused. Please understand.
Okuma's Multi-Processing Machine 'MULTUS U1000/U2000' Wins Top Award
Okuma Corporation's multi-processing machine 'MULTUS U1000/U2000' received the top prize (Minister of Economy, Trade and Industry Award) at the 56th Machine Industry Design Award IDEA. It contributes to improving processing quality and productivity through high positioning accuracy and AI diagnostic functions.
Announcement of Oakma Co., Ltd.'s Summer Holiday
Oakma Co., Ltd. will observe a summer holiday from July 18, 2026 to July 21, 2026, and inquiries during the period will be handled sequentially after the holiday.
Okuma Adds Turning Spindle Diagnosis Functionality to Advance AI Machine Diagnosis
Okuma Corporation has developed a diagnosis function for turning spindles, integrating it with existing diagnosis technologies to evolve AI diagnosis technology that covers key elements of machine tools.
Okuma completes new facility at Gyeongnam Plant
Okuma Corporation has completed and started operations at the Dream Site Engineered Solutions and Global Innovation Center at the Gyeongnam Plant.
Notice of Golden Week Holiday Period for Okuma Corporation
Okuma Corporation will be closed for Golden Week from April 29 to May 6, 2026, and the Service Center will also be closed for some periods.
Oakuma's compact multi-function machining center wins Top Ten New Product Award
Oakuma's 'MULTUS U1000/U2000' combines high precision and space-saving features, and was awarded the 68th Top Ten New Product Award for its excellence in process integration and automation.
§08
Public records
GOV
National Tax Agency basic information1180001081319
Source: National Tax Agency Corporate Number Publication Site, basic three items
Trade name
オークマ株式会社
Trade name (kana)
オークマ
Name in English
Corporation type
301
Address
〒480-0144 愛知県丹羽郡大口町下小口５丁目２５番地の１
Postal code
4800144
Prefecture code
23
City code
361
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2018-07-13
Change date
2015-10-05
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
Latest record
1
Excluded from search
0
Processing type
01
Correction type
1
Trade name image ID
Address image ID
Sequence number
3490491
METI gBizINFO1180001081319
Source: gBizINFO (Ministry of Economy, Trade and Industry)
