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NOK Corporation
NOK Corporation (NOK株式会社, NOK kabushiki gaisha), commonly referred to as NOK, is a Japanese manufacturing company specializing in the production of sealing products, functional parts, and electronic components. Founded in 1939 and headquartered in Minato, Tokyo, Japan.[2] NOK is an independent automotive parts supplier, boasts a domestic market share of 70% and has business relationships with all major Japan's complete vehicle manufacturers.[1] HistoryNOK was initially founded as Nippon Oil Seal Industry Co., Ltd. in 1939. The company began by manufacturing oil seals and various rubber products, gradually expanding its product range and technological capabilities.[2]
ProductsNOK's business is conducted by three main companies(主要三社): NOK, Eagle Industries(EKK) and Nippon Mektron(MEK).[5] NOK primarily develops and manufactures oil seals and manages R&D of the group. EKK handles the mechanical seal business, expanding into industrial and aviation field. The electronical components business is conducted by MEK. Overseas sales account for about 60% of the company's total sales,[6] with seal production bases in Vietnam and Thailand, and FPC production bases in China[7] Sealing productsNOK is the first Japanese seals manufacturer, has extensive range of sealing products including oil seals, packings, O-ring, soft metals, seal washers and mechanical seals. Seals are used to prevent the leakage of fluids and gases in automotive engines. As a major product line, sealing products account for half of the group's sales.[8] Electronic componentsNOK ranks third in the world in the FPC(Flexible Printed Circuit) market share, providing FPC products for major smartphone manufacturers, including Apple. NOK also invests heavily in electric vehicle (EV) related technologies. In 2023, NOK allocated 70 billion yen to expand FPC manufacturing specifically for use in EV batteries.[9] Corporate affairsNOK is headquartered in Minato, Tokyo. NOK has domestic factories in Fujisawa, Fukushima, Kita-ibaraki, Tsukuba, Shizuoka, Kikugawa, Tottori and Kumamoto. R&D Centre of the group located at Fujisawa, Kanagawa. NOK owns 51 overseas group companies in US, India, Indonesia, Hong Kong, South Korea, Singapore, Taiwan, Thailand, China, Philippines, Vietnam, Malaysia, Czech Republic, Germany, Hungary and France.[10] In April 2024, NOK published its new CI designed by Kashiwa Sato.[11] Related companies
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