|
1911
|
The Rasa Island Phosphate a limited Partnership was founded. |
|
1913
|
The Partnership was reorganized as the Rasa Island Phosphate Ore, Ltd. |
|
1920
|
The Company started the production of lime superphosphate at the Osaka factory. |
|
1934
|
The Company was renamed to Rasa Industries, Ltd.(hereinafter “Rasa”) |
|
1937
|
Rasa was authorized as the proprietor of the Rasa Island (Okinawa Pref.). |
|
1941
|
Rasa started the production of machinery at the Hainuzuka factory (Fukuoka Pref.). |
|
1954
|
Rasa started the production of yellow phosphorus and phosphoric acid at the Osaka factory. |
|
1958 |
Rasa started the production of flocculent for water treatment at Osaka factory. |
|
1965
|
Rasa started the production of anhydrous phosphoric acid and metal surface processing materials at the Osaka factory. |
|
1971
|
Rasa withdrew from the mining business. |
|
1972
|
Rasa started the production of high purity red phosphorus for electronic use at the Osaka factory. |
|
1980
|
Rasa started the production of pipe jacking machines at the Hainuzuka factory. |
|
1981
|
Rasa withdrew from the smelting business. |
| 1981 |
Rasa started the reclaim of catalysts for oil refining. |
|
1982
|
Rasa started the production of high purity Gallium at Osaka factory. |
|
1983
|
Rasa withdrew from the fertilizer business, selling the fertilizer division to the Coop Chemical Industries, Ltd. |
|
1984
|
Rasa started the silicon wafer reclaim at Osaka factory. |
| 1985 |
Rasa set up the Electronic Materials Department, constructed the Sanbongi factory and started the silicon wafer reclaim and the production of high purity inorganic materials. |
|
1986
|
The Machinery Dept. started the precision machine processing. |
|
1986
|
Rasa started the production of high functional Fe-Cl. |
|
1987
|
Rasa started the production of the flocculent (Poli Aluminum Chloride) at the Sanbongi factory. |
|
1989
|
Rasa started the production of deodorizer at the Osaka factory. |
|
1989
|
Rasa started the sales of SOG,dielectric films. |
| 1993 |
The Noda factory (Chiba Pref.) started the production of the flocculent. |
|
1996
|
The Isesaki factory (Gumma Pref.) started the production of electronic materials. |
| 1996 |
Rasa started the rent of Miyako Shopping Center premises. |
|
1998
|
The Sanbongi factory, electronic material division obtained ISO9002. |
|
1999
|
The Osaka factory obtained ISO9002 for the production of high purity phosphoric acid. |
| 1999 |
The Sanbongi factory obtained ISO14001. |
|
2000
|
Rasa established a JV in Taiwan for the sales of phosphoric acid for LCD etching. |
|
2003
|
The Precision Machine Processing division obtained ISO9001 for the electronic beam welding. |
|
2003
|
Rasa established a subsidiary (Rasa Technology Taiwan Ltd.－RTT) in Taiwan for the production of phosphoric acid for LCD etching. |
|
2006
|
RTT started the construction of production line(2nd stage). |
|
2010
|
Rasa withdrew from the silicon wafer reclaim at Sanbongi factory. |
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