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TBK Co., Ltd.
Company Profile
Business Overview
-The Company is a supplier of automotive and industrial-equipment water pumps and oil pumps for brakes and engines. It is the largest company manufacturing brakes for commercial vehicles in Japan, with a strong presence in the retarder business.
-Below is a breakdown of the Company's market share of each product for commercial vehicles in Japan, based on the Company's own studies.
- Brakes: 61%
- Water pumps: 65%
- Oil pumps: 85%
Shareholders
| -Listed on the Standard Market of the Tokyo Stock Exchange. | (As of Mar. 31, 2025) |
| Name or Company Name | Investment ratio (%) |
| Isuzu Motor Ltd. | 9.54 |
| Asahi Mutual Life Insurance Company (Standing proxy: Custody Bank of Japan, Ltd.) | 5.49 |
| Sumitomo Mitsui Banking Corp. | 4.85 |
| The Bank of Yokohama, Ltd. (Standing proxy: Custody Bank of Japan, Ltd.) | 4.85 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 4.57 |
| SKANDINAVISKA ENSKILDA BANKEN AB FBO ATHANASE INDUSTRIAL PARTNER AB (Standing proxy: MUFG Bank, Ltd.) | 4.32 |
| Custody Bank of Japan, Ltd. (Trust Account E) | 2.83 |
| Teikyo University | 1.91 |
| The Master Trust Bank of Japan, Ltd. (Trust Account) | 1.47 |
| Yorozu Corporation | 1.35 |
| Total | 41.19 |
Products
Brakes
Drum brakes
-Drum brakes for heavy-duty vehicles
-Air brakes for heavy-duty vehicles
-Drum brakes for medium-duty vehicles
-Hydraulic brakes for medium-duty vehicles
-Air brakes for medium-duty vehicles
Disk brakes
-Disk brakes for heavy-duty vehicles
-Air brakes for heavy-duty vehicles
-Disk brakes for medium-duty vehicles
-Air brakes for medium-duty vehicles
Retarders
-Electromagnetic retarders
-Regeneration-type retarders
Lining pads
-Linings
-Pads
Pumps
Water pumps
-Water pumps for commercial vehicles
Oil pumps
-Oil pumps
-Front cover module
-Electric energy efficient oil pumps
Electric pumps
-Electric water pumps
-Electric oil pumps
-Electric pump concept models (For heavy-duty HEV, EV, and FCV)
Engine components
Engine units
-Engine cam shafts
-Cylinder heads
-Crank cases
Bearing housings
-Turbocharger bearing housings
Engine assist systems
-Engine assist systems
History
| Aug. 1949 | Isuzu Buhin Kogyo Co., Ltd. was established |
| Mar. 1951 | Tokyo Brake industries Co., Ltd. was established |
| Nov. 1956 | Tokyo Buhin Kogyo Co., Ltd. was established as a result of the merger of the above-mentioned two companies. |
| Dec. 1957 | Constructed a new factory was built at 3-30-17 Haginaka, Ota-ku, Tokyo. Relocated headquarters and factory to new site. |
| Aug. 1963 | Took over Daiichi Seiki Co., Ltd. and merged into the Company. |
| Nov. 1971 | Listed on the second section of the Tokyo Stock Exchange. |
| Jan. 1972 | Relocated headquarters and factory to 1-6-1 Tsukimino, Yamato, Kanagawa. |
| Dec. 1983 | Tokyo Buhin Rockwell Co., Ltd. (currently TBR Co., Ltd.) was established as a joint venture with Rockwell International Co., Ltd. in the U.S. |
| Established Full Win Developments Ltd. (currently consolidated) in Hong Kong as an affiliated company. | |
| Nov. 1996 | TBK Brake Co., Ltd. (Currently TBKK (Thailand) Co., Ltd.) was established as a joint venture with CM Industries in Thailand |
| Jul. 1998 | Established TB Optical Co., ltd. as a result of a merger with Asahi Koden Co., Ltd. |
| Oct. 1998 | Established TBK India Private Ltd. as a joint venture in India. |
| May,1999 | Relocated factory to 304-7 Oaza Kawabe Aza Miyanomae, Tamagawa-mura, Ishikawa county, Fukushima. |
| June,1999 | Relocated headquarters to 4-21-1 Minami-Naruse, Machida, Tokyo |
| Jan. 2002 | Established TBK America, Inc. |
| Jun. 2002 | Established GSB-TBK Automotive Components, S.L. in Spain jointly with CIE Automotive. |
| Mar. 2004 | Disposed all the business rights of TBK Krungthep Co., Ltd. to TBK Brake Co., Ltd. |
| Apr. 2004 | TBK Brake Co., Ltd. adopted the name TBKK (Thailand) Co., Ltd. |
| Mar. 2005 | Listed on the first section of the Tokyo Stock Exchange. |
| May, 2005 | Started operation of Kagamiishi Plant |
| July, 2005 | The Company name was changed to TBK Co., Ltd. |
| Aug. 2005 | Jointly established Changchun TBK Shili Auto Parts Co. Ltd., which is currently a consolidated subsidiary, with Changchun Shin Automobile Brake Parts Co., Ltd. |
| May, 2006 | Started production at its Fukushima Daini Plant. |
| Nov. 2006 | Started operation of Richmond Plant of TBK America, Inc. |
| Jan. 2007 | Certified ISO/TS16949 |
| Mar. 2007 | Certified ISO14001 |
| May 2007 | The Company established TBK China Co., Ltd. |
| Feb. 2011 | Established Qiaotou TBK Co., Ltd., which is now a consolidated subsidiary. |
| Sep. 2011 | Turned TBK India Private Ltd. into a subsidiary. |
| Oct. 2011 | Transferred the equity shareholding in GSB-TBK to its Spanish partner. |
| Apr. 2012 | Established Changchun FAW Sihuan TBK Co., Ltd. as a joint venture with Changchun FAW Sihuan Brake Company. |
| Nov. 2014 | Operation started in Fukushima No.3 Plant (Ishikawa-gun, Fukushima Pref.). |
| Feb. 2018 | Acquired Kimura Malleable Iron Co., Ltd. through a stock acquisition, which became a subsidiary. |
| Nov. 2018 | Acquired SUNTEC Co., Ltd. through a stock acquisition, which became a subsidiary. |
| Dec. 2019 | Dongguan Qiaotou TBK Co., Ltd. merged and absorbed the operations of Chang'an TBK Co., Ltd. and TBK China Co., Ltd. |
| Apr. 2022 | Moved from the First Section of the Tokyo Stock Exchange to the Prime Market in line with the TSE’s reorganization. |
| Oct. 2023 | Moved to the Standard Market of the Tokyo Stock Exchange |
| Jan. 2024 | Merged and absorbed the operations of Tokyo Seiko Co., Ltd. and TBR Co., Ltd., two consolidated subsidiaries. |
Supplemental Information 1
>>>Business report FY ended Mar. 31, 2008
>>>Business report FY ended Mar. 31, 2009
>>>Business report FY ended Mar. 31, 2010
>>>Business report FY ended Mar. 31, 2011
>>>Business report FY ended Mar. 31, 2012
>>>Business report FY ended Mar. 31, 2013
>>>Business report FY ended Mar. 31, 2014
>>>Business report FY ended Mar. 31, 2015
>>>Business report FY ended Mar. 31, 2016
Archives of Past Exhibits
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