About us


Tokyo Tanso Co. Ltd.,originally a carbon brush maker, was established in 1947. In 1957, after moving the factory from Kojiya to Shinagawa, founder, Ishiko Yamazaki focused on machining electrodes and furnace parts to expand the business.  In 1985, Tokyo Tanso expanded its machining capabilities by moving/acquiring a bigger land in Yachimata, Chiba prefecture.

Today, using our CNC (Computer Numerical Control) machines, we specialize in processing graphite materials,  various impregnated carbon, c/c composites, carbon fiber, carbon insulator and machinable ceramics. We  provide our customers with a complete and cost-effective supply solution.

CNC aided by CAD/CAM software & manual machining operations are the backbone of our machine shop accomplished by our well-trained and experienced machinists.  Our staff is highly  competent, experienced,production-ready for prototypes short run orders, as well as complex assemblies and quantity production.  We can work from broken parts or freehand sketches to provide the parts our customers’ desire.  We partner with customers and work closely to produce the highest quality parts at the best possible price.  We have earned a reputation based on pricing by fulfilling requirements for precision, accuracy, quality, value and flexibility.


Our focus is on exceeding the needs of our customers in various industries:

  • Aircraft Aerospace
  • Automotive
  • Controls
  • Incinerator/Industrial furnaces
  • Electrical &Electronic
  • Medical & Surgical
  • Military & Defense
  • Telecommunications
  • Recreation


  • Graphite
  • C/C composites
  • Impregnated carbon
  • Carbon fiber
  • Carbon insulator
  • Machinable ceramics


  • Rapid lead time
  • Prototype and volume Production

Able to obtain various brands of graphite materials domestic and overseas.






Address: 3-4-11 Shimbashi, Minato-ku, Tokyo 105-0004 Japan

Phone: +813-3591-6245 (Contact: Yamazaki)

Mail: info@tokyotanso.com


Monday-Friday 9AM-6PM JST





カーボン加工 | グラファイト加工 | マシニングセンタ | NCフライス | 精密CNC旋盤 | 精密CNC平面研削 | フライス盤 | 普通旋盤 | サーフェイス研磨 | センタレス研磨 | 2.5・3次元モデル


カーボン材全般 | グラファイト製品 | 高温度・高温炉用部材 | 半導体製造装置用部材 | 黒鉛ルツボ・発熱体 | 太陽電池製造用部材 | 燃料電池用分離板 | 焼結用黒鉛鋳型 | カーボンブラシ | 電極板・電極棒 | 放電加工用電極 | 中性子反応装置部材 | 航空宇宙産業用機材 | 軸受・摺動材

TEL:03-3591-6245 TEL:03-3591-6245 FAX:03-3591-1071 FAX:03-3591-1071
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