Sumitomo Riko


Sumitomo Riko Co. Ltd. (住友理工株式会社, Sumitomo Rikō Kabushiki-gaisha) is a Japanese company which produces rubber and other synthetic resin products.[3]

Sumitomo Riko Co. Ltd.
TypePublic KK
TYO: 5191
NAG: 5191
IndustryRubber & plastic
Founded(December 1929; 92 years ago (1929-12))
Headquarters3-1, Higashi, Komaki, Aichi 485-8550, Japan
Key people
Yoshiaki Nishimura
(President and CEO)
  • Automotive parts
  • IT-related products
  • Industrial materials
RevenueIncrease US$ 3.58 billion (FY 2013) (JPY 369 billion) (FY 2013)
Increase US$398 million (FY 2013) (JPY 41 billion) (FY 2013)
Number of employees
22,546 (as of March 31, 2014)
ParentSumitomo Electric Industries (49.53%)
WebsiteOfficial website
Footnotes / references

In June 2014, the company changed its corporate name from Tokai Rubber Industries to Sumitomo Riko to clarify that it is a part of the Sumitomo Group.[4]

Through its subsidiaries in 24 countries, the company claims to hold the largest market share of automotive anti-vibration products.[4] Automotive products account for nearly 80 percent of sales.[4]

Business segments and productsEdit

Automotive productsEdit

  • Anti-vibration rubber components
  • Sound controlling and insulation products
  • Automotive hoses
  • Modular parts

IT-related productsEdit

  • Office automation equipment components
  • Precision anti-vibration rubber products

Industrial productsEdit

  • Hydraulic hoses
  • Rubber hoses

Infrastructure application productsEdit

  • Anti-vibration rubber for railway vehicles
  • Anti-vibration rubber for industrial machinery
  • Seismic isolation bearings for bridges

Construction and housing productsEdit

  • Earthquake countermeasures: dampers
  • Countermeasures to traffic and other vibrations in the living environment
  • Energy-saving products

See alsoEdit


  1. ^ "Company outline". Sumitomo Riko. Retrieved January 28, 2015.
  2. ^ "Company Overview". Reuters. Retrieved January 28, 2015.
  3. ^ "Company Snapshot". Bloomberg L.P. Retrieved January 24, 2015.
  4. ^ a b c "Tokai Rubber changes name to Sumitomo Riko in push for overseas growth". Automotive News. June 19, 2014. Retrieved January 28, 2015.

External linksEdit

  • Main Corporate Site (in English)