NOK Corporation

Company Profile

■URL

https://www.nok.co.jp/en/

■Address

1-12-15, Shibadaimon, Minato-ku, Tokyo 105-8585 Japan

Business Overview

-An independent manufacturer of oil seals.

-It operates in three business areas: the Seal Business, Electronic-parts Business, and Others.

‐It has a 70% share of the oil-seal market in Japan, according to the Company’s press release.

-It formed a partnership with Freudenberg in 1960, a major European oil-seal manufacturer based in Germany. This enabled the Company to create a worldwide supply chain that covers Japan, the Americas, Europe and Asia. In recent years, it has started developing products in response the trend in electrification and autonomous driving.

Shareholders

-Listed on the Prime Market of the Tokyo Stock Exchange.

(As of Mar. 31, 2024)

Name or Company Name	Investment Ratio (%)
Freudenberg SA (Standing proxy Tsuru Masato) (Standing proxy Mizuho Bank, Ltd. Sales of Yen Settlements Department)	25.93
The Master Trust Bank of Japan, Ltd. (Trust Account)	9.57
Custody Bank of Japan, Ltd.(Trust Account)	6.14
Showa Estate Co., Ltd.	5.23
Dai-ichi Life Insurance Company, Ltd. (Standing proxy Custody Bank of Japan, Ltd.)	4.77
Sumitomo Mitsui Banking Corporation	2.55
NOK employees stockholding	2.19
Sompo Japan Insurance Inc.	1.81
SMBC Trust Bank Ltd. (Sumitomo Mitsui Banking Corporation Retirement Benefit Trust Account)	1.79
SSBTC CLIENT OMNIBUS ACCOUNT (Standing proxy HSBC Bank Tokyo Branch)	1.78
Total	61.77

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Products

-Oil seals
-O-rings
‐Soft metals
-Seal washers
-Mechanical seals
-Lip seals
-Static metallic gaskets
-Dust covers
-Industrial rubber products
-Phenolic resin molding materials
-Iron rubber products (Urethane products)
-Vibration isolator and sound isolating products
-High damping rubber (HDR)
-Solenoid valves
-Actuators
-Carbon bearings
-Compressor valves
-Special lubricants
-Flexible circuits

Products for Electric Vehicles
-Thermally conductive compound "QLEASE"
-Flame retardant rubber
-Heater FPC
-Heat Resistant FPC
-High heat & high current resistant FPC
-Insulating thermal conductive resin
-Anti-corrosive seal & grease for aluminum parts
-Conductive ring
-FPC for Automotive
-FPC for high-speed transmission
-Transparent FPCs
-Space-saving gasket
-Oil seal for high-speed rotation motor shaft
-Low friction technology
-Surface textured mechanical seal for E-motor cooling system
-Crescent shape seal ring
-PTFE gas seal (high temperature & pressure seal)
-Self-lubricating rubber
-Biomass material
-Anti-vibration & noise reduction technology
-Cushion rubber
-Foldable rubber gasket
-Seals for piping joints
-Rubber electrode for biomedical signals
-Rubber applicable to near-infrared sensor
-Pressure control valve
-Intercell insulation/elastic rubber sheets

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History

Dec.1939	Established Edogawa Seiki in Katsushika, Tokyo.
Oct. 1948	Renamed as Tokyo Oil Seal Kogyo.
Dec. 1951	Merged with Nippon Yushi Kogyo, and changed Company name to Nippon Oil Seal Kogyo.
June 1954	Head office and plant moved to Ota, Tokyo.
Mar. 1960	Formed a business tie-up with the German company Freudenberg.
Aug. 1960	Built Fujisawa Works (Current Shonan Development Center) in Fujisawa, Kanagawa.
Sept. 1961	Listed on the Nagoya Stock Exchange.
Oct. 1961	Listed on the Tokyo Stock Exchange.
Oct.1961	Transferred headquarters to Chuo-ku, Tokyo.
June 1963	Established Saga Plant (currently Saga business facility) in Nakahara-cho, Saga Pref.
Oct. 1964	Established a subsidiary NIHON SEAL ALL Inc. (currently Eagle Industry Co., Ltd., an affiliated company).
Jan. 1966	Head office moved to the current location.
Aug. 1967	Established Shizuoka Plant (currently Shizuoka business facility) in Makinohara-shi, Shizuoka Pref.
Apr. 1968	Established a subsidiary, NOK-USA., Inc., currently NOK Inc., in the United States.
April 1968	Established Fukushima Plant (currently Fukushima business facility) in Fukushima, Fukushima Pref.
April 1970	Established Kumamoto Plant (currently Kumamoto business facility) in Asa, Kumamoto.
Dec. 1974	Established Tokai Plant (currently Tokai business facility) in Kikukawa-shi Shizuoka Pref.
Dec. 1976	Established NOK Cluver, a subsidiary.
Dec. 1978	Established NOK Megrastic, a subsidiary.
Jan. 1982	Eagle Industry Co., Ltd., an affiliated company was listed on the Tokyo Stock Exchange.
July 1985	Changed name from Nippon Oil Seal Kogyo to NOK Corporation.
Aug. 1987	Established Nihonmatsushi business facility in Nihonmatushi, Fukushima Pref.
Oct. 1988	Established a subsidiary in Thailand, Thai N.O.K. Co., Ltd.
Mar. 1989	Established NOK EG&G Optelectronics (currently NEOPT Corp.), a subsidiary.
July 1989	Its U.S. subsidiary, NOK Inc., established Freudenberg NOK GP with the U.S. subsidiary of Freudenberg.
Aug. 1989	Established Tsukuba Technology Research Center in Tsukuba, Ibaraki Pref.
Jun. 1995	Established a subsidiary in China, Wuxi NOK-Freudenburg Co., Ltd.
July,1996	Established a subsidiary, NOK Asia Co., Pte. Ltd., in Singapore.
Mar,2000	Started negotiations with Freudenberg GmbH with regard to the O-ring business, focusing on marketing in response to global shared ordering.
Apr,2001	Invested 1 billion yen to establish a wholly-owned subsidiary and plant in Thailand to produce HDD components. Will shift production from Japanese plants and concentrate it in this new plant, which currently produces 30% of total sales. Projected increase to 40%.
July 2001	Concentrated the main oil seal business at Fukushima business facility. Transferred and integrated the Fujisawa business facility's machine tool oil seal R&D functions to the Fukushima facility.
Apr. 2002	Span off a subsidiary UNIMATEC from another subsidiary Nippon Mektron, Ltd.
Jan. 2004	Newly established its Tottori plant in Nambucho, Tottori Prefecture.
Mar. 2004	Acquired all the shares in Hokushin Corporation and made it its subsidiary.
Oct. 2004	Delisted from the Nagoya Stock Exchange.
Mar. 2005	Acquired all the shares in Nitto Kogyo Corporation and made it its subsidiary.
Apr. 2005	Established Shonan Development Center in Fujisawa City, Kanagawa Pref.
Apr. 2007	Consolidated its subsidiaries, Hokushin Corporation and Nitto Kogyo Corporation, renaming them as a new company, Synztec Co., Ltd.
Apr. 2010	Established Kitaibaraki plant in Ibaraki Pref., Japan.
Oct. 2013	Split off Synztec Co., Ltd. (a subsidiary), establishing Synztec Co., Ltd. as the split-off surviving company.
Dec. 2018	Newly established Tsukuba plant in Tsukuba, Ibaraki Pref., Japan.
Apr. 2022	Moved from the First Section of the Tokyo Stock Exchange to the Prime Market in line with TSE’s reorganization in April 2022.
Oct. 2023	Acquired stock shares in Estoh Co., Ltd., turning it into a subsidiary.

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