NHK Spring Co., Ltd.

Company Profile



3-10 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa-ken, 236-0004, Japan

Business Overview

-The Company is the largest manufacturer of automotive springs, producing and selling automotive parts such as suspension springs, seats, seat parts, precision parts, and other auto parts.

-The following are the Company's four business areas:

  • Suspension springs: leaf springs, coil springs, stabilizers, accumulators, torsion bars, stabilizer links, stabilizer linkers, and others
  • Seats: automotive seats, seat mechanism parts, interior parts, and others
  • Precision parts: Suspensions for HDDs, mechanical parts for HDDs, wire springs, thin leaf-springs, fasteners (screws), precision-processed parts, and others
  • Industrial machinery and others: Metal Substrate and others


-Moved to the Tokyo Stock Exchange Prime Market from April 2022 (As of Mar. 31, 2022)
Name or Company name Investment Ratio (%)
The Master Trust Bank of Japan, Ltd. (Trust Account) 10.79
The Mitsubishi UFJ Trust and Banking Corporation 9.88
Sojitz Corporation 5.82
Mizuho Trust and Banking Co., Ltd. 4.19
The Custody Bank of Japan (Trust Account) 4.10
Daido Steel Co., Ltd. 3.75
Mizuho Trust and Banking Co., Ltd. 2.54
The Bank of Yokohama 2.52
Total 51.94


Suspension spring related products
-Coil springs
-Torsion bars
-Stabilizer links
-Leaf springs
-Bonding Bushes
-GFRP Leaf Springs

Powertrain, Control device and Exhaust system related products
-Valve springs
-Flat springs for disc brake
-Clutch diaphragms
-Wave springs
-Arc springs
-Wire Springs for Gearboxes
-Wave Springs for Gearboxes
-Injector Springs
-Thin Plate Springs
-Disc springs
-Wire Spring Products

Seat and Interior/Exterior related products
-Sporty seats with active headrest
-Air suspension seats
-Active headrest structures
-Armrest adjusters
-Super seals/seats
-One motor power seats
-Screws, bolts
-Control cables
-Fatigue Reduction Seats
-Door Sunshades
-Tonneau Covers

Electric related products
-Metal base printed wiring boards
-Aluminum substrates
-Steel substrates
-Other Metal Substrates
-In vehicle laser radar actuators
-Motor cores
-Thin leaf springs
-Precision stamped products


Jun. 1936 Established as Shibaura Spring Seisakujo.
Sep. 1939 Renamed as Nihon Hatsujo.
Nov. 1940 Transferred the headquarters to Yokohama and started producing suspension springs at the Yokohama Plant.
Dec. 1943 Ina First Plant opened and started manufacturing of precision springs.
Dec. 1953 Participated in the management of Yokohama Kiko.
Mar. 1954 Listed on the Tokyo Stock Exchange.
Feb. 1958 Established Nippatsu Seimitsu Kogyo.
Jul. 1996 Acquired a Brazilian suspension spring manufacturer Fabrini , jointly with Rassini (Mexico).
Aug. 1996 In Thailand, NHK Spring (Thailand) launched the second plant for automotive seats and interiors as well as the first plant for precision springs. It also started construction of a second suspension spring plant.
Oct. 1996 Jointly with Lear Corporation (USA), established General Seating (Thailand) to manufacture automotive seats.
Oct. 1996 Established a second suspension plant dedicated to the manufacturing of suspension for HDDs, in Komagane City
Oct. 1996 Moved parking equipment plant from Komaki City, Aichi Pref. to Yasu, Shiga Pref.
Sep. 1997 An affiliate NHK Sales Co., LTD was registered on the over-the-counter market.
Jan. 1998 Bought into the Jamna Group, an Indian automotive suspension coil manufacturer, to which the Company had provided technical assistance for the last 10 years.
Mar. 1998 Closed the Hiroshima Plant to integrate production sites.
Apr. 1998 Established Jamna-NHK-Allevard Suspension jointly with Jamna Group
Sep. 1998 Jointly with Rassini (Mexico), merged Fabrini (Brazil) and NHK-Simebura (Brazil) into Rassini NHK Autopecas.
Jul. 1999 Established a third suspension plant dedicated to the manufacturing of suspensions for HDDs, in Komagane City.
Jul. 2000 Established NHK Parking Systems jointly with NHK Transport.
Oct. 2001 Established Faurecia-NHK and Faurecia-NHK Kyushu jointly with Faurecia S.A. (France)
May 2002 Established a joint venture, NHK-UNI Spring (Guangzho) Co., LTD, in China.
Oct. 2003 Made Horikiri Inc. a consolidated subsidiary.
Nov. 2003 Established NHK Spring Precision (Guangzhou) Co., Ltd. in China
Nov. 2003 Established NHK Spring (Shenzhen) Co., Ltd. in China.
Nov. 2003 Established a joint venture Nat Peripheral (H.K.) in China.
Apr. 2004 Made Uniflex Co., Ltd. a wholly owned consolidated subsidiary.
Dec. 2005 Acquired Tokuhatsu Co., Ltd. from Daido Steel Co., Ltd.
Jan. 2006 Acquired the remaining shares in General Seating of America Inc., making it into its wholly owned subsidiary.
Sep. 2006 Made NHK Precision (Thailand) Co., Ltd. a consolidated subsidiary.
Sep. 2006 Made Tohoku Nippastu Co., Ltd. a consolidated subsidiary.
Jul. 2007 Transfered shares of Thai Automotive Seating & Interior Co., Ltd. to Toyota Boshoku Corporation.
Dec. 2007 Made Faurecia-NHK Kyushu Co., Ltd. a consolidated subsidiary.
Apr. 2009 Made NHK Spring India Ltd. a consolidated subsidiary.
Sep. 2010 Made Yokohama Kiko Co., Ltd. a wholly owned subsidiary through an exchange of stock shares.  
Nov. 2010 Established NHK Seating (Hubei) Co., Ltd. in China.
Mar. 2011 Established NHK Seating (Guangzhou) Co., Ltd. in China.
Apr. 2011 Spun off the spring business of Yokohama Kiko Company, making it into a separate business entity called NHK Spring Production Company.
Jul. 2011 Established NHK Automotive Components India Pvt. Ltd., acquiring the precision spring business from India-based Bombay Burmah Trading Corporation Ltd.
Nov. 2011 Established NHK Spring (China) Co., Ltd. in China.
Apr. 2012 Turned NHK Sales Company into a wholly owned subsidiary by an exchange of stock shares.
Apr. 2012 Turned Topura Co., Ltd. into a wholly owned subsidiary by an exchange of stock shares.
Aug. 2012 Acquired Sun NHK Philippines, changing its name to NHK Spring Philippines.
Oct. 2012 Established NHK Antolin Thailand as a joint venture with the Antolin Group based in Spain.
Feb. 2013 Established NHK F. Krishna India Automotive Seating as a joint venture with the Krishna Group based in India.
Sep. 2013 Established NHK Spring Mexico S.A. de C.V. in Mexico.
Mar. 2014 Established NHK Spring Europe B.V. in Netherlands as a holding company.
Apr. 2014 Consolidated Topura America Fastener, Inc. in Kentucky, U.S.
Sep. 2014 Established "NHK Spring Kyushu" in Miyako-gun, Fukuoka Pref. in Japan.
Apr. 2015 Established NHK Spring Hungary Kft. in Hungary.
Jul. 2017 Established NHK Mizushima Co., Ltd. in Kurashiki City, Okayama.
Mar. 2019 Established a production plant in Kamiina District, Nagano Prefecture to produce semiconductor processing parts exclusively.
Jul. 2021 Sold all stock shares held in NHK Seating (Zhengzhou) Co., Ltd.
Apr. 2022

Moved from the First Section of the Tokyo Stock Exchange to the Prime Market

Supplemental Information 1