| 1951 |
Mr Hiroyuki Yamaguchi (President) started manufacturing and selling mica
powder in Toyohashi, Aichi, Japan. |
| 1954 |
Moved to Toyokawa, Aichi, Japan (former Kozakai, Hoi-gun) |
| 1960 |
Yamaguchi Unmo Ind. Co., Ltd. was founded |
| 1965 |
COLOR MICA for pebbly design material was developed |
| 1978 |
Mica powder for cosmetic was developed |
| 1986 |
MICALET (pelletized mica) for plastic filler was developed |
| 1988 |
New factory was established in Toyohashi, Aichi |
| 1988 |
Surface treatment for cosmetic was started
Demand of mica powder for engineering plastics & paint increased |
| 2003 |
2nd factory was established in Toyohashi, Aichi |
| 2004 |
ISO9001 (LRQA) was acquired |
| 2005 |
Indian OEM products were developed and started manufacturing and selling |
| 2006 |
Chinese OEM products were developed and started manufacturing and selling
Hybrid-ground mica powder was developed |
| 2010 |
Company name was changed to YAMAGUCHI MICA CO., LTD. |
| 2010 |
Demand of mica powder for super engineering plastics increased
Demand of mica powder for overseas cosmetic increased |
Head office (as of 1954)
