Wave gear device 'Harmonic Drive®'Precision planetary reduction device 'AccuDrive®'Harmonic Planetary®
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Kagome Vegetable Life Farm Co., Ltd.
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Harman (Shanghai) Trading Co., Ltd.
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Harmonic Precision Corporation
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Harmonic Winbell Co., Ltd.
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Harmonic Drive L.L.C.
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| ドイツ Harmonic Drive SE | ||||||||
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| 中国 哈默纳科(上海)商贸有限公司 | ||||||||
| 台湾 日商ハーモナ科股份有限公司 | ||||||||
| 日本株式会社ハーモニック・エイディ | ||||||||
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Harmonic Precision Inc.
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| 米国 Harmonic Drive L.L.C. HD Systems, Inc. | ||||||||
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Oume Casting Co., Ltd.
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| 韓国 三益ADM株式会社 |
Since its founding in 1970, Harmonic Drive Systems has steadily grown as a leading company in precision gearboxes for motion control, contributing to various technological innovations worldwide through the provision of motion control technology.
Established as a joint venture between Hasegawa Gears Co., Ltd. and USM Corporation (U.S.)
Established Harmonic Drive Systems Co., Ltd. through a joint venture between Hasegawa Gear Co., Ltd. and USM Corporation.
Established Harmonic Drive Systems Co., Ltd. through a joint venture between Hasegawa Gear Co., Ltd. and US corporation USM Corporation (hereinafter referred to as "USM Co.").
Commenced manufacturing of Harmonic Drives at the Matsumoto plant (now Toyoshina, Azumino City, Nagano Prefecture).
Entered into an agency agreement with Mitsui & Co., Ltd. for our products.
Started manufacturing Harmonic Drives at the Matsumoto plant.
Commenced manufacturing of Harmonic Drive® at Matsumoto Plant (currently in Toyoshina, Azumino City, Nagano Prefecture).
Became a 100% subsidiary of USM.
Commenced manufacturing and sales of mechatronics products.
Signed a dealership agreement with Mitsui & Co., Ltd. for domestic sales of our products (terminated the agency agreement from November 1970).
Established sales agencies in Taiwan and Korea.
Founded HD Systems Incorporated in the United States.
Established H.D. Systems Incorporated in the United States (now a consolidated subsidiary).
Established H.D. Systems Incorporated (now a consolidated subsidiary) in the United States.
Signed a dealership agreement with Mitsui & Co., Ltd. for sales in Korea.
Signed a dealer agreement with Mitsui & Co., Ltd. for selling our products in Korea.
Commenced manufacturing and sales of the new tooth profile IH Harmonic Drive.
Commenced manufacturing and sales of the new tooth profile IH tooth-shaped Harmonic Drive®.
Established a new Harmonic Drive Systems, Inc. as a 100% subsidiary of the former Harmonic Drive Systems, Inc.
Established a new Harmonic Drive Systems Co., Ltd. as a 100% subsidiary of the former Harmonic Drive Systems Co., Ltd.
Established new Harmonic Drive Systems Co., Ltd. as a 100% subsidiary of the former Harmonic Drive Systems Co., Ltd. (hereinafter referred to as "the former company").
The former company was absorbed and merged into Kōden Seisakusho Co., Ltd., and the new company became a 100% subsidiary of Kōden Seisakusho.
The new company became a 100% subsidiary of Kōden Seisakusho Co., Ltd. after the former company was absorbed and merged into it.
Relocated production facilities from the Matsumoto plant to the Hotaka plant.
December: Moved production from Matsumoto Plant to Hodaka Plant.
Signed an exclusive dealership agreement with Harmonic Drive Anturivstehnik GmbH (Germany) for sales in Europe, the Middle East, Africa, India, and South America.
Signed an exclusive distribution agreement with German corporation Harmonic Drive Anturivstehnik GmbH (now Harmonic Drive SE) to sell our products in Europe, the Middle East, Africa, India, and South America.
March: Signed an exclusive dealership agreement with Harmonic Drive Anturivstehnik GMBH (now Harmonic Drive SE) to sell our products in Europe, the Middle East, Africa, India, and South America.
Signed a license and technical assistance agreement with Harmonic Drive Anturivstehnik GmbH (Germany).
Entered into a license and technical assistance agreement with German corporation Harmonic Drive Anturivstehnik GmbH (now Harmonic Drive SE).
Registered shares with the Japan Securities Dealers Association.
Established H.C. Logistics Co., Ltd.
Established H.D. Logistics Co., Ltd. (now a consolidated subsidiary).
Established Harmonic Precision Co., Ltd.
Established Harmonic Precision Co., Ltd. (now a consolidated subsidiary).
Acquired 25% of shares in German subsidiary Harmonic Drive Arge.
Acquired 25% of the shares of German corporation Harmonic Drive Arge (now an equity-method affiliate, now Harmonic Drive SE).
July: Acquisition of 25% of shares in Harmonic Drive Arge (now a related company under the equity method, currently Harmonic Drive SE).
Established Harmonic A.D.I. Co., Ltd.
Established Harmonic A.D. Co., Ltd. (now a consolidated subsidiary).
April: Establishment of Harmonic A.D. Co., Ltd. (now a consolidated subsidiary).
Listed shares on the JASDAQ Stock Exchange.
December: Listing of shares on the JASDAQ Securities Exchange.
Signed a single-agent distribution agreement with Mitsui & Co. for sales in Taiwan.
Signed a first‑party dealer agreement with Mitsui & Co., Ltd. for selling in Taiwan.
Signed a sole distributor agreement with Mitsui & Co., Ltd. for the sale of our products in Taiwan.
February: Signing of a single-distributor agreement with Mitsui & Co., Ltd. for the sale of our products in Taiwan.
Terminated the distribution agreement with Mitsui & Co. for sales in Korea.
Signed a first‑party dealer agreement with Mitsui & Co., Ltd. for selling in Korea. (Dealer agreement signed in April 1987 was terminated)
Signed a sole distributor agreement with Mitsui & Co., Ltd. for the sale of our products in South Korea. (Discontinued the distributor agreement signed in April 1987)
March: Signed a single-agent dealership agreement with Mitsui & Co., Ltd. to sell our products in Korea. (Terminated the dealership agreement signed in April 1987)
Established Harmonic Drive LLC in the United States in a joint venture with Nabtesco.
Established Harmonic Drive LLC in the US through a joint venture with Nabtesco Co., Ltd.
Established Harmonic Drive LLC (now a consolidated subsidiary) in the U.S. through a joint venture with Nabtesco Co., Ltd.
December: Established Harmonic Drive LLC (now a consolidated subsidiary) in the United States in a joint venture with Nabtesco Corporation.
Entered into a business and capital partnership with Winbell Co., Ltd.
Entered into business and capital cooperation with Winbell Co., Ltd. (now a consolidated subsidiary).
May: Entered into a business and capital partnership with Winbell Co., Ltd. (now a consolidated subsidiary).
Acquired an additional 10% of shares in German subsidiary Harmonic Drive Arge (ownership ratio 35%).
Acquired an additional 10% of shares in German corporation Harmonic Drive Arge (now a related company under the equity method, currently Harmonic Drive SE), bringing the current ownership ratio to 35%.
September: Acquired an additional 10% stake in Harmonic Drive Arge (now an equity-method affiliate, currently Harmonic Drive SE). Current ownership ratio is 35%.
Entered into a business and capital partnership with Aomei Foundry.
Entered into a business and capital partnership with Aomi Foundry Co., Ltd.
Entered into a business and capital partnership with Aomi Foundry Co., Ltd. (now a related company under the equity method).
October–November: Entered into a business and capital partnership with Aomi Casting Co., Ltd. (now an equity-method affiliate).
Entered into a business and capital partnership with Aomi Foundry Co., Ltd.
Terminated all distribution and single-agent agreements with Mitsui & Co.
Terminated all dealer and first‑party agency agreements with Mitsui & Co., Ltd.
February: Terminated all dealership and single-agent agreements with Mitsui & Co., Ltd.
Due to the merger of the Osaka Stock Exchange and JASDAQ, the listing market changed to the Osaka Stock Exchange JASDAQ market.
The Osaka Stock Exchange and JASDAQ Stock Exchange merged, changing the listing market to the Osaka Stock Exchange JASDAQ Market.
Apr: Following the merger of the Osaka Stock Exchange and the JASDAQ Stock Exchange, the listing market changed to the Osaka Stock Exchange JASDAQ market.
Due to the market integration of the Osaka Stock Exchange, the listing market changed to the Osaka Stock Exchange JASDAQ (Standard).
With the integration of the Osaka Stock Exchange Hercules Market, JASDAQ Market, and NEO Market, the listing market changed to Osaka Stock Exchange JASDAQ (Standard).
Oct: Following the integration of the Osaka Stock Exchange Hercules market, JASDAQ market, and NEO market, the listing market changed to Osaka Stock Exchange JASDAQ (Standard).
Established Hammerna Co., Ltd. (Shanghai) in China.
Established Hamerna Co. (Shanghai) Trading Co., Ltd. in China (now a consolidated subsidiary).
Jan: Established Hamerna Co., Ltd. (Shanghai) Trading Co., Ltd. in China (now a consolidated subsidiary).
Established Sanmei ADM Co., Ltd. in Korea through a joint venture with Sanmei HDS Co.
Established the joint venture company Sanmeik ADM Co., Ltd. with Sanmeik HDS Co., Ltd. in South Korea.
Established a joint venture, San-Myek ADM Co., Ltd., with San-Myek HDS Co., Ltd. in South Korea (now a consolidated subsidiary).
Feb: Established joint venture Sanmi ADM Co., Ltd. (now a consolidated subsidiary) with Sanmi HDS Co., Ltd. in South Korea.
Due to the merger of the Tokyo Stock Exchange and Osaka Stock Exchange, the listing market changed to the Tokyo Stock Exchange JASDAQ market.
Jul: Following the merger of the Tokyo Stock Exchange and the Osaka Stock Exchange, the listing market changed to the Tokyo Stock Exchange JASDAQ market.
Acquired an additional 63.2% of shares in Harmonic Drive Arge in cooperation with the Industrial Innovation Organization, making it a subsidiary (ownership ratio increased from 36.8% to 74.7%).
Co-acquired 63.2% of the issued shares of German corporation Harmonic Drive Arge and made it a subsidiary with the Industrial Innovation Institute.
Co-acquired an additional 63.2% of issued shares of German corporation Harmonic Drive Arge (now Harmonic Drive SE) with Industrial Innovation Corporation, converting it into a subsidiary. (Ownership ratio increased from 36.8% to 74.7%, Industrial Innovation Corporation holds 25.3%).
Mar: Co-acquired an additional 63.2% of issued shares of German subsidiary Harmonic Drive Ager (now Harmonic Drive SE) with the Industrial Innovation Institute, making it a subsidiary. (Ownership ratio increased from 36.8% to 74.7%, Industrial Innovation Institute 25.3%)
Commenced operations at the Ariake plant in Hoshikawa, Azumino City, Nagano Prefecture.
Commenced operations of the Ariake Factory in Hoshikawa Ariake, Azumino City, Nagano Prefecture.
March: Commencement of operations at the Ariake Factory in Hoshikusa, Azumino City, Nagano Prefecture.
Completed construction of the Matsumoto plant in the New Matsumoto Industrial Complex, Matsumoto City, Nagano Prefecture.
Completed construction of the Matsumoto Factory in the Shin-Matsumoto Industrial Complex, Matsumoto City, Nagano Prefecture.
January: Completion of the Matsumoto Factory within the Shin-Matsumoto Industrial Complex, Matsumoto City, Nagano Prefecture.
Completed construction of the new Ariake plant building in Hoshikawa, Azumino City, Nagano Prefecture.
Completed construction of the Ariake New Factory Building in Hoshikawa Ariake, Azumino City, Nagano Prefecture.
September: Completion of the Ariake New Factory Building in Hoshikusa, Azumino City, Nagano Prefecture.
Held the 50th anniversary celebration.
Held a 50th anniversary celebration ceremony. : Please visit the 50th anniversary special site here.
November: Held a 50th anniversary celebration ceremony. : Please visit the 50th anniversary special site here.
Acquired 49% of the shares of US subsidiary Harmonic Drive LLC from Nabtesco and made it a 100% subsidiary.
Acquired 49% of the shares of U.S. corporation Harmonic Drive LLC from Nabtesco Co., Ltd. and made it a 100% subsidiary.
Acquired 49% of shares of US corporation Harmonic Drive LLC (now a consolidated subsidiary) from Nabtesco Co., Ltd., converting it into a 100% subsidiary.
Feb: Acquired 49% of shares of Harmonic Drive LLC (now a consolidated subsidiary) from Nabtesco Co., Ltd., making it a 100% subsidiary.
Acquired additional shares of Winbell Co., Ltd. and made it a 100% subsidiary.
Acquired additional shares of Winbell Co., Ltd. (now a consolidated subsidiary) and converted it into a 100% subsidiary.
Jun: Additional acquisition of shares of Winbell Co., Ltd. (now a consolidated subsidiary), making it a 100% subsidiary.
Acquired the partner's stake in H.D. Management LLC and made Harmonic Drive SE a subsidiary.
Acquired all partner shares of LLC H.D. Management and made German corporation Harmonic Drive SE a 100% subsidiary.
Acquired all partner shares of the joint venture H.D. Management LLC, jointly established with INCJ, and converted German corporation Harmonic Drive SE (now a consolidated subsidiary) into a 100% subsidiary.
Jul: Acquired all partner interests in the joint venture H.D. Management LLC, co-founded with INCJ, and made German subsidiary Harmonic Drive SE (now a consolidated subsidiary) a 100% subsidiary.
Moved from JASDAQ (Standard) to the Standard market due to a review of the Tokyo Stock Exchange market classification.
Revised market classification of the Tokyo Stock Exchange, moving from JASDAQ (Standard) to the Standard Market.
Apr: Due to a review of market classifications at the Tokyo Stock Exchange, moved from JASDAQ (Standard) to the Standard market.
Completed the new Komagane factory in Akaho, Komagane City, Nagano Prefecture.
Completed construction of the Komagane New Factory in Akaho, Komagane City, Nagano Prefecture.
May: Completion of the Komagane New Factory in Akaho, Komagane City, Nagano Prefecture.
Renamed Winbell Co., Ltd. to Harmonic Winbell Co., Ltd.
Renamed Winbell Co., Ltd. to Harmonic Winbell Co., Ltd. (now a consolidated subsidiary).
Apr: Renamed Winbell Co., Ltd. to Harmonic Winbell Co., Ltd. (now a consolidated subsidiary).
In the 2024-2026 Mid-Term Management Plan that began in fiscal year 2024, we clarified the key issues that need to be addressed by reviewing materiality and setting a new long-term vision: "Be the best provider of total motion control that harmonizes with the future." We will sincerely address these key issues with the keyword "value creation and challenge to transformation" and work toward achieving the mid-term plan.
Changed from the Standard market to the Prime market on the Tokyo Stock Exchange.
Changed market classification from the Tokyo Stock Exchange Standard Market to the Prime Market.
Feb: Changed market classification from the Standard market to the Prime market at the Tokyo Stock Exchange.
We will exhibit at RoboNext 2026, held at Intex Osaka from December 2 to 4, 2026. We will showcase products in development, mobility-oriented products, and catalog products for robots, focusing on physical AI and humanoid robots. Our booth is C-38 in Building 4.
We would like to inform you that we are discontinuing production of the servo driver RF series dedicated communication cable and ending new sales of the RF series. Please see the attached PDF for details.
We will be closed on Monday, November 9, as it is a company-designated holiday. We will respond to inquiries and requests for materials received that day starting Tuesday, November 10, in the order received.
In response to the addition of new models in the HA-900A series, we are updating the HA-Navigator® software. Version 1.5.0.0 will be available for download from the company's website from late October 2026. We are guiding current customers to upgrade to version 1.5.0.0.
We established the Harmonic Drive Systems Alumni Association with the aim of fostering interaction and camaraderie among retirees. While valuing connections made during employment, we aim to broaden the circle of interaction, and we provide information and membership application forms to retirees at the time of their retirement.
The Harmonic Drive® R Series has been registered as an Important Historical Materials for Science and Technology by the National Museum of Nature and Science. The series was recognized as a strain wave gear reducer that contributed to the development of industrial robots. A commemorative panel exhibition and display of the actual product are planned.
Harmonic Drive Systems Inc. will participate in Robotics NEXT Tokyo 2026, held at Tokyo International Forum on Tuesday, September 29. Eleven people involved in physical AI and robotics research and development will speak at the event, including keynote speaker Ashwin Balakrishna of Physical Intelligence. Shizuka Yada will also present a talk titled "Motion Control Technology That Has Supported Industry, for the Next Generation of Robots." Participation is free and advance registration is required.
Harmonic Drive Systems Inc. will exhibit at the 29th Mechanical Components & Materials Technology Expo Osaka from October 7 to 9, 2026. The company will showcase its latest actuators, including lightweight, compact flat AC servo actuators and AC servo actuators with built-in planetary gears, and present new motion-control technologies combining gearheads, motors, and control systems. Numerous demonstration units are planned. Visitors can register in advance or book a time-specific appointment and see the products at booth 34-22 in Hall 5.
The 24th Harmonic Lecture will be held in Matsumoto on September 11, 2026. Aya Komaki of Sanrio Entertainment will speak about value stories in the age of AI. Admission is free, with registration available for the first 600 people. The event is organized by the Harmonic Ito Foundation and sponsored in part by Harmonic Drive Systems.
Harmonic Drive Systems Inc. will renew the molds for die-cast parts in its FHA-C series as production is transferred. See the PDF for details.