About Syntek




Synthetic Technology


Using Syntek’s excellent technology and skill, we believe we can solve your complex material processing needs.
We provide the best quality and services for diamond processing and superfine processing – in Japan or abroad.

What’s the industrial diamond?


You might have been asked from somebody to buy a “diamond” as a gift.
When you hear “diamond” a lot of people image a shiny, hard, gorgeous, and costly gem stone.
It is said that “diamonds are forever”, but usually one’s economic power is not limitless.
Nevertheless, the attraction of diamonds is irresistible and beyond the description.
Diamond is a very mysterious material, and for that reason, there are many tragic stories about diamonds around the world.


Let’s come to the point. As you might know, diamonds are not used only for gems.
They are used for industrial parts for their hardness, chemical stability, high heat conductivity semiconducting, and surface characteristic.
Actually, more than 90 % of diamonds are used in the industrial field, like diamond tools (end mill, cutter, bite, indenter, substrate or etc.), semi conductor, medical equipment, heat sink and more.
Diamond is a versatile material with many possibilities. There will be many more ways to utilize diamond in the future.
We, Syntek keep doing our research and development every day.
We produce accurate products as well as something extra.
We keep opening new doors and exploring the possibilities of diamond.
We help to eliminate your fatigue and troubles with this promising material.
Knock, and it shall be opened unto you.








  • Company name: Syntek Co., Ltd.
  • President : Susumu YAMAZAKI
  • Foundation : September, 1978
  • Address     :Leading Venture Plaza 2-403, 75-1 Ono-cho, Tsurumi-ku, Yokohama-shi, #230-0046, Japan
  • Capital : JPY 10,000,000
  • Employee number: 26
  • Phone number: +81-45-500-6603
  • Facsimile number: +81-45-501-6605

How to get to Syntek?