Corporate Profile: KOYO-KOWA CO.,LTD.

Corporate Profile

◆ Corporate Vision ◆

“Respond & Reward with our Best Proposal for our Customer's needs”

◆ Corporate Philosohy ◆

We will make progress in high reliability and evaluation by our Best Services towards the needs of Customer and Group Company.

President: Hisashi Okamoto

We make a promise to customers to deliver satisfaction in our goods and services by quick action upon prompt decision making.
It should be our pleasure to keep long time and good relationship with all of our customers and suppliers.

President: Hisashi Okamoto

Corporate Profile

Company name: KOYO-KOWA CO.,LTD.
Foundation: July 1982
Number of employees: 77(as of June 2018)
Capital: 21,500K.yen
Shareholder: JTEKT Corporation (100%)
Business fields
  1. Sales of various Koyo Bearings and JTEKT products
  2. Sales of Machine service parts, Electric parts, Tools, Cutters and Overhaul of Machines
  3. Sales of Materials and Components for factory
  4. Purchasing and Export Agent for JTEKT global plants
Head Office

Runessa Namba Bldg. 6th Floor, 1-7, 2-chome, Minatomachi, Naniwa-ku, Osaka, 556-0017 Japan

Company History

Established as the name of Miyake & Co. at Fukushima in Osaka.
Changed to Osaka Koyo Co., Ltd and became group company of Koyo.
Took-over Kowa Kogyo and changed location & company name to Koyo-Kowa Co., Ltd, Chuo-Ku Osaka.
Opened Osaka Branch at Chuo-Ku, Osaka.
Took-over Sanwa and opened as Shikoku sales office.
Changed share holder to JTEKT (100%)
Unified Osaka branch and Changed location to Naniwa-ku Osaka.
Opened Kagawa office at JTEKT Kagawa plant.
Began KES (Koyo Express Service/E-business for Bearing in Japan market)
Moved & unified Logistic W/H to Higashi Osaka in collaboration with Fujikyu Express.




1. Bearings: Koyo Bearings,Oil seals and other Brand bearings.

High Precision Bearings

Oil Seals

2. Machine parts, Electrical and Electronic parts :

A) Ball screw--- Koyo Machine Industries Co., Ltd. (KMI)
B) Electronic devices--- Koyo Electronics Industries Co., Ltd. (KE)
C) Hydraulic equip.--- Nachi, Yasukawa Electric.
D) Pneumatic devices--- CKD. E) Hydraulic Cyl. Horiuchi Machine etc.

Ball Screw & Spindle Unit


3. Machineries:

JTEKT, KMI, Mitsui Seiki, Toyo Mach. Sumitomo H/M.CNK etc.

Cylindrical Grinder

Horizontal Machining Center

4. Machined parts and components: Bearing Components, Forged parts.

Service to support global manufacturing plant: Parts/materials (Grinding stone, Grease, Oil etc), Machine parts & Export Service

Diamond Rotary Dresser

Cutting tool


Okita Iron Works, Kitanihon Seiki, Samtec, GMB, Araya Industrial, Sumitomo Heavy Industries, Tokushin Denki, Nidec-Shimpo, Hitachi Construction Machinery Tierra, Heishin, Makishinko

〈JTEKT Group〉

JTEKT Corporation, JTEKT global plants, Utsunomiya kiki, Eiko Seimitsu, KJK, Koyo Machine Industries, Koyo Thermo System, Koyo Sealing Techno, Koyo Heat Treatment, Koyo Metaltec, CNK, Taiho, Daibea, Nakatetsu, Nippon Needle, Yamato Seiko

Global partners of JTEKT group


TEL +81-6-6632-3604
FAX +81-6-6632-3552