| Head Office |
1-21-7, Wada, Suginami-ku, Tokyo |
| Head Office Administration Building |
1-22-3, Wada, Suginami-ku, Tokyo |
Head Office Center -
Tokyo Research Center |
1-22-10, Wada, Suginami-ku, Tokyo |
| Yamanashi Factory |
3180, Uenoyama, Nirasaki City, Yamanashi Pref. |
| Feb. 1913 |
Masayoshi Hori established "Hori Hakuai Yakubo" in Tajima-cho, Asakusa-ku (present, Nishi-Asakusa 2-chome, Taito-ku), Tokyo. |
| Sep. 1923 |
Moved the store to Okazaki-cho, Kyobashi-ku (present, Hacchobori 2-chome, Chuo-ku). |
| Jul. 1933 |
Changed business name to "Kyushin Seiyaku Sho". |
| Mar. 1938 |
Moved the factory to Wada Honcho, Suginami-ku (present, Wada 1-chome) for production facility expansion. |
| May 1945 |
Burned down 2nd factory (Nishi-Osaki 1-chome, Shinagawa-ku) by air raids. |
| Mar. 1946 |
Moved the 2nd factory (Nerima Factory) to Nerima-cho 5-chome, Itabashi-ku (present, Nerima 4-chome, Nerima-ku). |
| Mar. 1947 |
Separated the sales department for independence and established "Hori Trading Co., Ltd.". Masayoshi Hori took office as a president of the company. Only manufacturing department was left as "Kyushin Seiyaku Sho". |
| Jan. 1950 |
"Hori Trading Co., Ltd." and "Kyushin Seiyaku Sho" were merged to form "Kyushin Pharmaceutical Co., Ltd.". Masayoshi Hori became a president of the company. |
| Dec. 1964 |
Built the head office building on present place. |
| Aug. 1965 |
Moved the head office on present place. |
| May 1966 |
Masayoshi Hori took office as a chairman. Taisuke Hori took office as a president of the company. |
| Oct. 1967 |
Separated the sales department for independence and established "Kyushin Trading Co., Ltd.". Masami Hori took office as a president of the company. |
| Oct. 1970 |
Closed the Nerima Factory, and Built "Suginami 2nd factory" and "Research Laboratories" on Wada 1-chome, Suginami-ku for business expansion. |
| Jan. 1975 |
Separated the advertising department for independence and established "Hori Kikaku Co., Ltd.". Masami Hori took office as a president of the company. |
| Sep. 1981 |
Built new "Research Laboratories" on Wada 1-chome, Suginami-ku. |
| May 1989 |
Taisuke Hori took office as a chairman. Masami Hori took office as a president of the company. |
| Jun. 1998 |
Built new "Suginami factory" on Wada, Suginami-ku. |
| Feb. 2000 |
Masanori Hori took office as a president of the company. |
| Oct. 2007 |
Absorbed Hori Kikaku Co., Ltd. into Kyushin Pharmaceutical Co., Ltd.. |
| Apr. 2011 |
Absorbed Kyushin Trading Co., Ltd. into Kyushin Pharmaceutical Co., Ltd.. |
| Nov. 2011 |
Built new "Yamanashi factory" on Nirasaki City, Yamanashi Pref.. |
| Feb. 2013 |
100th Anniversary |
| Jun. 2019 |
Masanori Hori took office as a chairman & CEO. Atsushi Hori took office as a president & COO of the company. |
