History of Chugai Pharmaceutical

Understanding Chugai’s history that fostered the business philosophy “Innovation all for the patients”

Chugai merged with Nippon Roche in 2002 based on a strategic alliance agreement with Roche.

  • History of Chugai Pharmaceutical
  • History of Nippon Roche
1940
1941
Nippon Roche

Operations suspended during World War II; Evacuated to Takasaki

1943
Chugai

Reorganized into a corporation and company name changed to Chugai Pharmaceutical Co., Ltd. (Head Office: Tokyo) (Mar.)

1944
Chugai

Acquired Matsunaga Pharmaceutical Co., Ltd. and constructed the Matsunaga Plant (Hiroshima Prefecture) (Apr.)

1945
World War II ends
1945
Chugai

The headquarters, Ikebukuro Plant, Sakai Plant and Takada Plant destroyed during the World War II, (Apr.)

Chugai

Relocated the headquarters to the Takada Plant (Jun.)

Chugai

Reconstructed and commenced production at the Takada Plant (Dec.)

1946
Chugai

Constructed the Kagamiishi Plant (Fukushima Prefecture) (Sep.)

1947
Nippon Roche

Restarted operations at Takasaki Plant

1951
Nippon Roche

Established temporary office in Nihonbashi-Honcho, Tokyo

1953
Discovery of double stranded DNA
1953
Nippon Roche

Relocated headquarters to Nikkatsu International Hall (Apr.)

1954
Nippon Roche

Constructed Oi Plant; Closed Takasaki Plant (Apr.)

1955
Chugai

Chugai became publicly traded company (Jun.)

1956
Chugai

Stock listed on the Tokyo Stock Exchange (now Tokyo Stock Exchange, Inc.) (Mar.)

1957
Chugai

Constructed the Ukima Plant (Tokyo) (Apr.)

1959

Learn more about the turning points of this age

  1. Fresh start from the period of post-war turmoil (1940 - 1950s)
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History of Chugai Pharmaceutical

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