About
Company Profile
Corporate Philosophy
We contribute to society by turning creative ideas into reality through tireless effort and technical expertise, and by meeting our customers' needs.
We pursue the happiness of our employees, their families, and everyone who shares in our company's purpose.
Product Features
Unlike commonly used tools, we develop specialty tools tailored to the construction of new vehicle models introduced by each automaker.
KOTO Tools has developed original, innovative tools to meet the changing needs of the times.
They may look unusual at first, but we are confident that using them will show you how they reduce the hassle of service work more safely and reliably, while improving efficiency.
Pick one up and try it for yourself.
Company Profile
- Company Name
- Koto Sangyo Co., Ltd.
- Capital
- 1,000 units of ten thousand yen
- Year Founded
- Showa 6, October (10) 15 (incorporated in Showa 19, May (5) 1)
- President
- Shinya Aoki
- Number of Employees
- 40 employees
- Head Office
- 1-4-15 Hirai, Edogawa-ku, Tokyo 132-0035
TEL：03-5636-1251
FAX：03-5636-1252
- Oyama
- ９２−２ Nishikuroda, Oyama-shi, Tochigi 329-0203
TEL：0285-45-0302
FAX：0285-45-7940
- Saitama
- 1-9-28 Higashicho, Iwatsuki-ku, Saitama-shi, Saitama 339-0055
TEL：03-5636-1251
FAX：048-884-9576
Tokyo HQ
Oyama
Company History
- Showa 6, October (10)
- The late Sadashiro Aoki established Aoki Seisakusho as a sole proprietorship at 2-chome 16, Kotobashi, Honjo-ku, Tokyo, and began manufacturing dental equipment, drinking-water machinery, and other products.
- Showa 16
- Imports of automotive service tools from the United States stopped in Showa 13. The company subsequently researched manufacturing methods, successfully developed the products, and began production.
- Showa 18
- The factory's products were recognized for their excellent performance even in Manchuria and other extremely cold regions. As orders increased, a branch factory was established at 4-chome 42, Higashi, Azumacho, Mukojima, Tokyo.
- Showa 19, March (3)
- The factory was destroyed by fire during the war.
- Showa 19, May (5)
- Acquired Koa Aviation Co., Ltd. and renamed it Aoki Seisakusho Co., Ltd. (later the Sugamo Factory).
- Showa 20, June (6)
- Aoki Seisakusho Co., Ltd. was renamed Koto Sangyo Co., Ltd., and Sadashiro Aoki was appointed Representative Director.
- Showa 20, October (10)
- Established the Sumida Factory (3-chome 34, Higashiryogoku, Sumida-ku, Tokyo)
- Showa 24
- Passed the first Excellent Tool Certification Inspection and received an excellence certification from the Minister of International Trade and Industry (socket wrench set).
- Showa 28
- Passed the second Excellent Tool Certification Inspection and received an excellence certification from the Minister of International Trade and Industry (box-end wrenches).
- Showa 29, October (10)
- Established the Edogawa Factory
- Showa 31, May (5)
- Relocated the headquarters to its current location and closed the Sugamo and Sumida factories
- Showa 32, October (10)
- Established a branch factory at 7-chome 24-7, Matsue, Edogawa-ku, Tokyo
- Showa 33, May (5)
- Certified by the Minister of International Trade and Industry as a factory authorized to display the Japanese Industrial Standards (JIS) mark for socket handles.
- Showa 33, July (7)
- Became a designated factory for Defense Agency tool procurement.
- Showa 39, December (12)
- Established the sister company Nitto Kogyo Co., Ltd. in Oyama-shi, Tochigi
- Showa 44, November (11)
- Established a joint heat-treatment plant in Edogawa-ku under the guidance of the Ministry of International Trade and Industry
- Showa 58, February (2)
- Takayuki Aoki appointed as the new Representative Director following a change in officers
- Showa 60, April (4)
- The business rights of sister company Nitto Kogyo Co., Ltd. were transferred, and the operation became Koto Sangyo's Tochigi Factory as part of organizational expansion and strengthening.
- Showa 61, May (5)
- Founder Sadashiro Aoki passed away
- Showa 61, October (10)
- Expanded the Tochigi Factory to increase production capacity
- Showa 63, March (3)
- Following a change in officers, Nobuyuki Aoki was appointed Representative Director.
- Heisei 2, July (7)
- New office built at the Tochigi Factory
- Heisei 7, April (4)
- New headquarters factory built
- Heisei 9, September (9)
- Company website launched
- Heisei 15, May (5)
- Hirotaka Aoki appointed as the new Representative Director following a change in officers
- Heisei 24, May (5)
- Relocated the headquarters sales department and warehouse to Haruecho in the same ward due to the aging headquarters building
- Heisei 24, July (7)
- Expanded the Tochigi Factory to consolidate production departments and streamline operations
- Reiwa 3, March (3)
- Following a change in officers, Shinya Aoki was appointed Representative Director.
- Reiwa 7, October (10)
- Established the Saitama Warehouse in Saitama-shi, Saitama, to improve operating efficiency, and relocated the headquarters sales department to Hirai, Edogawa-ku.
Directions
〒132-0035 1-4-15 Hirai, Edogawa-ku, Tokyo
By Train・12-minute walk from Hirai Station on the JR Sobu Line
By Car・Approximately 9 minutes from Hirai Ohashi IC on the Metropolitan Expressway Central Circular Route
92-2 Nishikuroda, Oyama-shi, Tochigi 329-0203
By Car・Approximately 30 minutes east of the Sano-Fujioka Interchange on the Tohoku Expressway
・Approximately 30 minutes north on National Route 4 from Goka IC on the Ken-O Expressway
1-9-28 Higashicho, Iwatsuki-ku, Saitama-shi, Saitama 339-0055
By Train・12-minute walk from Iwatsuki Station on the Tobu Noda Line
By Car・Approximately 6 minutes east of the Iwatsuki Interchange on the Tohoku Expressway
KOTO for Safety and Reliability
Koto Sangyo Co., Ltd.
- Tokyo HQ
- 〒132-0035 1-4-15 Hirai, Edogawa-ku, Tokyo
- Oyama
- 92-2 Nishikuroda, Oyama-shi, Tochigi 329-0203
- Saitama
- 1-9-28 Higashicho, Iwatsuki-ku, Saitama-shi, Saitama 339-0055
