| 1887 |
丸石商会として大阪市東区淡路町で創業 |
| 1887 |
Maruishi Firm founded in Awajimachi, Higashi-ku, Osaka. |
| 1908 |
丸石製薬合名会社として大阪市北区に天満工場竣工 |
| 1908 |
Temma Plant constructed in Kita-ku, Osaka, reorganizing into Maruishi Pharmaceutical unlimited partnership. |
| 1936 |
丸石製薬株式会社設立 資本金25万円 |
| 1936 |
Reorganized as a stock company (capital: ¥250,000), using the current name Maruishi Pharmaceutical Co., Ltd. |
| 1943 |
大阪市城東区今津町（現在地）に今津工場竣工 |
| 1943 |
Imazu Plant constructed in Imazucho, Joto-ku, Osaka (present location). |
| 1962 |
本社を大阪市東区伏見町に移転 |
| 1962 |
Head office relocated to Fushimimachi, Higashi-ku, Osaka. |
| 1978 |
グルタラール製剤 ステリハイド®発売 |
| 1978 |
STERIHYDE® (disinfectant: glutaral preparation) launched. |
| 1983 |
中央研究所竣工 |
| 1983 |
Construction of Central Research Laboratories completed. |
| 1985 |
速乾性擦式手指消毒剤 ウエルパス®発売 |
| 1985 |
WELPAS® (disinfectant: alcohol-based hand rub) launched. |
| 1990 |
全身吸入麻酔薬 セボフレン®発売 |
| 1990 |
SEVOFRANE® (inhalation: general anesthetic) launched. |
| 1992 |
増資 資本金2億8,500万円 |
| 1992 |
Capital increased to ¥285,000,000. |
| 1993 |
中央研究所新館竣工 |
| 1993 |
Annex of Central Research Laboratories constructed. |
| 1995 |
セボフルラン 米国FDA承認取得 |
| 1995 |
SEVOFLURANE approved from the US food and Drug Administration. |
| 1997 |
株式会社目黒研究所を子会社化 |
| 1997 |
Meguro Institute Co, Ltd. became a subsidiary. |
| 1998 |
本社新社屋（本社事務所）竣工 大阪市鶴見区今津 |
| 1998 |
New head office building constructed in Imazu, Tsurumi-ku, Osaka. |
| 2003 |
全社組織改革を実施 |
| 2003 |
Organizational changes implemented. |
| 2004 |
α2作動性鎮静剤 プレセデックス®発売 |
| 2004 |
PRECEDEX® (sedative: alpha-2 adrenergic agonists） launched. |
| 2008 |
長時間作用性局所麻酔剤 ポプスカイン®発売 |
| 2008 |
POPSCAINE® (long-acting local anesthetic） launched. |
| 2010 |
速乾性擦式手指消毒剤 ウエルセプト®発売 |
| 2010 |
WELCEPT® (disinfectant: alcohol-based hand rub) launched. |
| 2011 |
泡の速乾性手指消毒剤 ウエルフォーム®発売 |
| 2011 |
WELFOAM® (disinfectant: foaming alcohol-based hand rub) launched. |
| 2012 |
本店所在地を大阪市鶴見区今津に変更 |
| 2012 |
Corporate domicile changed to Imazu, Tsurumi-ku, Osaka. |
| 2014 |
今津工場特薬棟竣工 |
| 2014 |
Warehouse for specific drugs at Imazu Plant constructed. |
| 2022 |
株式会社目黒研究所を帝人株式会社へ譲渡 |
| 2022 |
Transferred Meguro Institute Co., Ltd. to Teijin Limited. |
