| 1945 |
Nihon-Disk laboratory(dental disk research) |
| 1946 |
Nihon-Disk laboratory opening(manufacturing besides dental disk and dental point) |
| 1955 |
Nihon-Disk laboratory(industrial, precise cutting whetstone manufacturingand sales) |
| 1964 |
It is a company name change in industry Ltd. of Nihon-Disk Co., Ltd |
| 1971 |
Company's in-house development precise automatic cutting machine
(N521 type manufacturing and sales) |
| 1981 |
ND2 type precise automatic cutting machine development and sales |
| 1983 |
ND8 type W precise automatic cutting machine development and sales |
| 1998 |
ND10 type W precise automatic cutting machine development and sales |
| 2000 |
ND8 type S-1 precise automatic cutting machine development and sales |
| 2001 |
ND13 type W-T precise automatic cutting machine development and sales |
| 2011年 |
ND23 type precise automatic cutting machine development and sales |
| 2011年 |
Precise Cutting Whetstone development and sales |
