Founded Nippon Bearing Manufacturing Co., Ltd.
Renamed to Nippon USC Industrial Co., Ltd. and began manufacturing and selling oil seals
Merged with Nippon Oil Stop Industrial Co., Ltd. and Tokyo Oil Seal Co., Ltd. (established 1939) and renamed to Nippon Oil Seal Industrial Co., Ltd.
Relocated headquarters and factory to Ota-ku, Tokyo, and opened Haneda factory
Capital partnership with Germany's Friedenberg Co.
Constructed Fujisawa factory in Fujisawa City, Kanagawa Prefecture
Listed on the Tokyo Stock Exchange
Relocated headquarters to Chuo-ku, Tokyo
Established Japan Seal All Co., Ltd. (now Eagle Industrial Co., Ltd.)
Established Technical Center at Fujisawa Factory (now Shonan R&D Center)
Relocated headquarters to Minato-ku, Tokyo
Constructed Shizuoka Factory in Makinohara City, Shizuoka Prefecture (now Shizuoka Plant)
Established NOK-USA, Inc. (now NOK Inc.), the first overseas sales office in the United States
Constructed Fukushima Factory in Fukushima City, Fukushima Prefecture (now Fukushima Plant)
Established Japan Mektrolon Co., Ltd. (now Mektec Co., Ltd.)
Constructed Kumamoto Factory in Aso City, Kumamoto Prefecture (now Kumamoto Plant)
Established Singapole Oilseal Company, the first overseas production base in Singapore
Constructed Tokai Factory in Kikugawa City, Shizuoka Prefecture (now Tokai Plant)
Established NOK Clubbar Co., Ltd.
Integrated Haneda Factory into Fukushima Factory
Renamed company from Japan Oil Seal Industrial Co., Ltd. to NOK Co., Ltd.
Established Mektec Manufacturing Corporation (Taiwan) Ltd. in Taiwan
Constructed Nihonmatsu Plant in Nihonmatsu City, Fukushima Prefecture
Established Thai NOK Co., Ltd. in Thailand
Established Freudenberg-NOK General Partnership, a joint venture with Freudenberg in the United States
Established Changchun NOK-Freudenberg Oilseal Co., Ltd. in China
Established Mektec Manufacturing Corporation (Thailand) Ltd. in Thailand
Established Wuxi NOK-Freudenberg Oilseal Co., Ltd. in China
Established PT. NOK Indonesia in Indonesia
Established NOK Asia Company Pte. Ltd. in Singapore
Established Mektec Manufacturing Corporation (Zhuhai) Ltd. in China
Established Sigma Freudenberg NOK Pvt. Ltd. (now: Freudenberg NOK Pvt. Ltd.), a joint venture with Freudenberg in India
Established NOK Precision Component Thailand, Ltd. (now: Mektec Precision Component Thailand, Ltd.) in Thailand
Split off Unimatec Corporation from Mechtron Corporation (now: Mektec Corporation) in Japan
Established NOK (Wuxi) Vibration Control China Co., Ltd. in China
Established Mektec Europe GmbH in Germany
Established Mektec Manufacturing Corporation (Suzhou) in China
Constructed Mechtron Corporation Okahara Plant (now: Mektec Corporation Ushiku Facility) in Ushiku City, Ibaraki Prefecture
Established new Tottori Facility in Nambu Town, Tottori Prefecture
Established Vietnam NOK Co., Ltd. in Vietnam
Constructed Shonan Development Center (now: Shonan R&D Center) in Fujisawa City, Kanagawa Prefecture
Established Unimatec Singapore Pte. Ltd. in Singapore
Established Shinji Tech Corporation
Opened North Ibaraki Facility in Kitaibaraki City, Ibaraki Prefecture
Established Pyung Hwa NOK Drive Train CO., Ltd. (now: Pyung Hwa Oil Seal Industry Co., Ltd.) in South Korea
Established Mektec Manufacturing Corporation (Vietnam) Ltd. in Vietnam
Acquired all shares of Estor Co., Ltd. and made it a subsidiary
Mechtron Corporation of Japan changes its name to Mechtech Corporation
Conclusion of a unified contract and creation of a share transfer plan regarding the management integration through the establishment of a joint holding company between NOK Co., Ltd. and Eagle Industrial Co., Ltd. (share transfer)
Received the "Shizuoka Prefecture Invention Association Chairman Award" and "Invention Encouragement Award" at the 7th Reiwa Kanto Regional Invention Awards
Updated Our Stories: "Stronger, Safer, More Sustainable. The Technical Expertise in Handling Rubber – Exploring the Source of Value Creation, Rubber Materials Edition Part 2"
Complete renewal of the corporate sites of the 8 NOK Group companies
Transfer of all shares of ShinjiTech Corporation and its subsidiaries
NOK Mechtech opens a new headquarters office in Minato, Tokyo
Mechtech opens a new headquarters office in Minato, Tokyo
Refresh of work uniforms to celebrate NOK's 85th anniversary
Presentation of next‑generation seal technology supporting a hydrogen society at an international symposium
Implementation of rice‑field owner system to nurture groundwater in Kumamoto, Kyushu, by NOK Kyushu
Refresh of work uniforms to celebrate NOK's 85th anniversary
On October 10, NOK Kyushu conducted rice harvesting with 39 employees and their families in a paddy field in Ōtsu-cho, Kumamoto Prefecture. The company has been participating in the Paddy Owner System for eight consecutive years since 2019 as part of its groundwater conservation activities in Kumamoto. Some of the harvested rice will be donated to the Kumamoto City Food Bank and the children's cafeteria "Volter's Kitchen".
NOK Group swimmer Tetsuhei Morimoto was selected as Japan's representative for the 18th World Championships (25m) to be held in Beijing, China, in December 2026. He is scheduled to compete in the men's 200m butterfly. In the final of the selection meeting, he recorded his personal best of 1 minute 50.23 seconds, finishing second and surpassing the dispatch standard record.
NOK will exhibit at the co-hosted event 'Disaster Prevention Theme Park' of 'Disaster Prevention 2026 in Tottori', held on October 17-18, 2026, in Kurayoshi City, Tottori Prefecture. It will introduce cardboard acoustic panels, a high-capacity pressurized water purifier, and hydrogen sulfide detection rubber for improving the acoustic environment of shelters and preventing secondary disasters at infrastructure restoration sites.
NOK Corporation published its Integrated Report 2026 on September 29, 2026. The report summarizes strategies for the group's medium- and long-term value creation and its ESG initiatives. It is available on the company's corporate website.
NOK Corporation renewed its official partner agreements with the Kumamoto Volters and Forest Leaves Kumamoto for the 2026–27 season. Its logo will appear on both teams’ uniforms. Through cheering at games and community events, the company will continue environmental conservation activities, including participating in the “Water Festival” promoting groundwater conservation and supporting a rice paddy ownership program.
Mektec Corporation renewed its Gold Sponsor agreement with Ibaraki Robots for a third year and will display its logo at Adastria Mito Arena during the 2026–27 season. In addition, NOK’s hair tie brand KKOOR was selected as official team merchandise and will go on sale starting with preseason games. With a major base in Ibaraki Prefecture, Mektec will continue contributing to the local community.
NOK Corporation will continue its club partnership with Kawasaki Frontale until the 2026/27 season. They will display signage at their home stadium and the National Stadium, and support community activities and merchandise sales.
NOK improved its ESG rating from 4.3 points to 4.4 points in the FTSE Russell ESG evaluation and was continuously selected as a constituent of global ESG investment indices.
NOK Corporation will sponsor the Japan Student Formula Competition in 2026 and provide approximately 300 products free of charge. During the event, a corporate PR booth will also be set up to support the development of the next generation of engineers. NOK has been supporting student manufacturing for many years.
NOK Corporation will jointly exhibit with Nichiyu Giken at the Sewerage Exhibition '26 Tokyo, unveiling a newly developed ammonia and hydrogen sulfide detection rubber for the first time. This product visualizes the type of gas through color change, contributing to the efficiency and safety improvement of sewer infrastructure inspection and investigation. It is expected to easily grasp the gas emission status of aging sewer systems.