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April 2012: Takadake Manufacturing Co., Ltd. and Tokkaku Electric Co., Ltd. signed a 'Basic Agreement' to establish a joint holding company that would become the ultimate parent company of both companies through a joint share transfer method.
Takada Seisakusho Co., Ltd. and Tokoku Electric Co., Ltd. signed a "Letter of Intent" to establish a joint holding company that would become the ultimate parent of both companies through a joint share transfer.
May 2012: Takadake Manufacturing Co., Ltd. and Tokkaku Electric Co., Ltd. signed a 'Management Integration Agreement' and prepared a share transfer plan to establish a joint holding company that would become the ultimate parent company of both companies through a joint share transfer method.
Takada Seisakusho Co., Ltd. and Tokoku Electric Co., Ltd. signed a "Management Integration Agreement" and prepared a share transfer plan to establish a joint holding company that would become the ultimate parent of both companies via joint share transfer.
June 2012: At the regular shareholders' meetings of Takadake Manufacturing Co., Ltd. and Tokkaku Electric Co., Ltd., a resolution was approved to establish a joint holding company that would become the ultimate parent company of both companies through a joint share transfer method.
At the regular shareholders' meetings of Takada Seisakusho Co., Ltd. and Tokoku Electric Co., Ltd., a resolution was approved to establish a joint holding company that would become the ultimate parent of both companies through joint share transfer.
October 2012: Company establishment (listed on the First Section of the Tokyo Stock Exchange): (Former company name Tokkaku Takadake Holdings Co., Ltd.)
Company establishment (listed on the First Section of the Tokyo Stock Exchange): (Former company name: Tokoku Takada Holdings Co., Ltd.)
Established.
November 2013: Takadake Manufacturing Co., Ltd. acquired shares of Japan Reliance Co., Ltd. and made it a consolidated subsidiary.
Takada Seisakusho Co., Ltd. acquired shares of Japan Reliance Co., Ltd. and made it a consolidated subsidiary.
December 2013: The board of directors resolved and signed a merger agreement to absorb merge Takadake Manufacturing Co., Ltd. and Tokkaku Electric Co., Ltd. effective April 1, 2014.
On April 1, 2014, the board of directors resolved to absorb and merge Takada Seisakusho Co., Ltd. and Tokoku Electric Co., Ltd., and signed the merger agreement.
April 2014: Absorption merger of Takadake Manufacturing Co., Ltd. and Tokkaku Electric Co., Ltd. effective April 1, 2014: Company name changed to Tokkaku Takadake Co., Ltd.; head office location changed to 5-6-36 Toyosu, Koto-ku, Tokyo (previously 3-2-20 Toyosu, Koto-ku, Tokyo).
On April 1, 2014, Takada Seisakusho Co., Ltd. and Tokoku Electric Co., Ltd. were absorbed and merged: the company name changed to Tokoku Takada Co., Ltd.; the head office location changed to 5-6-36 Toyosu, Koto-ku, Tokyo (previously 3-2-20 Toyosu, Koto-ku, Tokyo).
July 2014: Completion of a smart meter production plant (assembly building and warehouse) in the Reneta area, Saitama Prefecture.
The smart meter production plant (assembly building and warehouse) was completed in the Reneta area of Saitama Prefecture.
October 2014: Acquired from Tokyo Keiki Industrial Co., Ltd. the business related to the replacement of expired equipment and all associated or related construction and work.
Acquired from Tokyo Keki Kogyo Co., Ltd. the business related to the replacement of expired equipment and all associated or related construction and work.
June 2015: Tokkaku Kōun Co., Ltd. changed its name to Wattline Service Co., Ltd.
Tokoku Kōun Co., Ltd. changed its name to Wattline Service Co., Ltd.
January 2017: Established a Measurement Business Headquarters that integrated sales and production systems for the measurement business.
Established the Measurement Business Division, integrating sales and production systems for the measurement business.
June 2017: Established a joint venture gas transformer company (Tokkaku Takadake Korea Co., Ltd.) in the Republic of Korea. (Note: In February 2025, Tokkaku Takadake Korea Co., Ltd. changed its name to City Electric Co., Ltd.)
Established a joint venture in the Republic of Korea for gas transformers (Tokoku Takada Korea Co., Ltd.): *In February 2025, Tokoku Takada Korea Co., Ltd. changed its name to City Electric Co., Ltd.
November 2017: Sold all shares of Japan Reliance Co., Ltd. held by the company.
Sold all shares of Japan Reliance Co., Ltd. held by the company.
June 2019: Acquired shares of Applied Technical Systems Joint Stock Company (headquarters: Hanoi, Socialist Republic of Vietnam) and made it an associate under the equity method.
Acquired shares of Applied Technical Systems Joint Stock Company (headquarters: Hanoi, Socialist Republic of Vietnam) and made it an associate under the equity method.
June 2020: Transitioned from a company with an audit board to one with an audit and other committees.
Transitioned from a company with a board of auditors to one with an audit and related committee.
April 2021: Tokkaku Toshiba Meter Systems Co., Ltd. absorbed and merged with TMT Co., Ltd.
Tokoku Toshiba Meter Systems Co., Ltd. absorbed and merged with TMT Co., Ltd.
October 2021: Absorbed and merged with Yukequest Co., Ltd.
Absorbed and merged with Yukequest Co., Ltd.
April 2022: Moved from the First Section to the Prime Market of the Tokyo Stock Exchange due to a review of market classifications.
Moved from the First Section to the Prime Market of the Tokyo Stock Exchange due to a review of market classifications.
June 2022: Established the GX Solutions Division aiming to provide diverse solutions toward achieving carbon neutrality.
Established the GX Solutions Division aiming to provide diverse solutions toward achieving carbon neutrality.
Established a Human Resources Development Center that leverages human capital to enhance corporate value.
Established a Risk and Compliance Management Department to build a responsible structure overseeing safety, risk, and compliance activities across the group.
The instrument center that performs final assembly and pairing of second-generation smart meters in the Reneta area of Saitama Prefecture has been completed.
Renamed from Instrument Center to Smart Meter Assembly Center.
We announced the progress of the SQC First Reform as of November 1, 2026. The reform consists of four components: fostering a culture of proactive thinking, strengthening on-site capabilities and people/organization, improving systems and environment, and concentrating resources through business structure reform. The status of each action plan is presented in categories of on schedule, delayed (expected to be achieved), and not meeting the plan.
Tokkō Takadake published the Japanese version of the Integrated Report 2026 on its website. The report includes information on sustainability initiatives and corporate value creation, as well as the direction toward realizing the company's vision, "SERA Company," the mid‑term management plan for 2027, and progress on the "SOC First Reform." The company states that it will continue to strengthen communication with stakeholders through enhanced information disclosure and strive to improve corporate value.
From August 2026, twelve entities—MESH-X, NHK Technologies, Kyushu University, KDDI, SoftBank, Tokoku Takadake, University of Tokyo, Tokyo Electric Power Power Grid, Tokyo Electric Power Holdings, Fujitsu, Hokkaido University, and Morgan Stanley—formed a multi-stakeholder collaborative wide‑area workload shift demonstration consortium and began the demonstration. The consortium aims to build a "virtual hyperscaler" that realizes mutual optimization of wide‑area, multi‑carrier, data center, and power system by integrated control of communications, power, and computing resources, and by optimally operating computing resources required for AI learning and inference.
At its board meeting on September 30, 2026, Toko Takaoka Co., Ltd. decided on new responsibilities for executive officers. Michio Takahashi and Manabu Aoki will take up new positions.
As part of its diversity initiatives, Toko Electrical Co., Ltd. has supported Sekisui House’s IKUKYU.PJT, a project focused on men’s parental leave, since fiscal year 2024. The company holds discussions and interviews with fathers who have taken leave and provides a childcare leave support allowance to maintain take-home pay during leave, aiming to increase uptake. These initiatives seek to create a workplace where people of all genders can balance childcare and work.
On September 17, 2026, the completion ceremony of the Apapa Road Substation in Lagos City, Nigeria, was held. Attendees included Mr. Akihiko Ichikawa of TEC, Director Keiji Ishigame of JICA Nigeria Office, Group Leader Katsuhiro Higuchi of Toyota Tsusho Corporation, Minister Joseph Olusunkanmi Teguve of the Ministry of Power, Acting Ambassador Hitoshi Ozaki of the Embassy of Japan in Nigeria, and Mr. Sule Ahmed Abdulaziz, President of Nigeria Transmission Company.
The SERA-400 next-generation ultra-fast charger, jointly developed by Toko Electrical Construction and e-Mobility Power, began operating at the uphill charging station of Ebina Service Area at 10:00 a.m. on September 14, 2026. It delivers a maximum voltage of 1,000 V and up to 350 kW per connector, making it the first such charger to enter service at an expressway charging station. Designed for higher voltage and capacity, it features an easy-to-see, easy-to-use design, a large LCD, and a lighter, thinner charging cable.
Toko Takaoka Co., Ltd. will exhibit at the 2026 Power and Energy Division Conference of the Institute of Electrical Engineers of Japan, held at Chiba University's Nishi-Chiba Campus. The company will demonstrate DIgSILENT PowerFactory and PFM300 at its corporate exhibit booth, where it will also provide product information and individual consultations. PFM300 will be connected to test equipment at the Oyama Works for monitoring. No advance registration is required; visitors are welcome.
The Toko Takahashi Group has established a customer harassment policy to ensure employees can work in a safe environment and to build good relationships with customers and business partners. The group will continue to listen sincerely to feedback and requests and aims to remain a trusted and preferred company.
Starting September 1, 2026, Toko Takahashi Co., Ltd. will air its first radio commercials on FM NACK5 (79.5 MHz), reaching all of Saitama Prefecture, southern Tochigi Prefecture, and the greater Tokyo area. The commercials will air on the popular program GOGOMONZ to raise awareness of the company and strengthen local communication, highlighting its support for energy infrastructure and contributions to local communities.