Major incidents in KINCHO Showa Era (before World War II)
- Meiji Era
- Taisho Era
- Showa Era
(before World War II) - Showa Era
(after World War II) - Showa Era
- Heisei Era
- Reiwa Era
| 1927 (S2) | Yugoslavia offered us to compromise on pyrethrum trade through the Japanese Chamber of Commerce and Industry. |
|---|---|
| 1929 (S4) |
Eiichiro was appointed Honorary Consul of Yugoslavia in Osaka.  |
| 1930 (S5) | Established KANSAI KINCHO HANBAI CO. LTD. Kantaro, the eldest son, became president of Dainihon Jochuhun Co., Ltd. at age 41. |
| 1931 (S6) | Established TOKYO KINCHO HANBAI CO., LTD. |
| 1933 (S8) | Opened Onomichi Branch. |
| 1934 (S9) |
Established Nagasu Factory in Hyogo Prefecture, Japan, to produce KINCHOL liquid insecticide.  |
| 1935 (S10) | Changed company name to DAINIHON JOCHUGIKU CO., LTD. |
| 1936 (S11) | Opened the Tokyo Branch. |
| 1938 (S13) | Third son Hideo (later President Kantaro) resigned from Nippon Kangyo Bank and became Executive Vice President of the Company at age 39. |
| 1939 (S14) | The R&D Laboratory was completed at the Osaka Factory. |
| 1940 (S15) |
Completed automatic rotary punching machine for manufacturing mosquito coils.  |
| 1942 (S17) | Moved its head office to 2 Cho-me, Tosabori, Nishi Ward, Osaka (present location). President Kantaro, the 3rd son of Eiichiro, died in an aircraft accident in Singapore while on a business trip to Southeast Asia as a commissioned officer of the Army and Navy at age 53. |
| 1943 (S18) | Hideo Ueyama, Vice President, assumed the name Kantaro and became the third president of DAINIHON JOCHUGIKU CO., LTD. at age 44. Eiichiro passed away at age 81. |
- Meiji Era
- Taisho Era
- Showa Era
(before World War II) - Showa Era
(after World War II) - Showa Era
- Heisei Era
- Reiwa Era