| 1938 (Showa 13) | Founder Masayuki Kuramoto founds the Kuramoto factory |
| 1941 (Showa 16) | The factory to work at the Navy Fuel. |
| 1947 (Showa 22) | Kuramoto Factory Co., Ltd. (Shinbashi, Tokyo) founded |
| 1948 (Showa 23) | Agency of Stanley Electric Co., Ltd. |
| 1954 (Showa 9) | Agency of Nikko Electric Industry Co., Ltd. |
| 1960s - | Connected a distributor ship agreement and signed with Denso in 1960, Hitachi in 1962, and Mitsubishi Electric in 1965 |
| 1960s - | Sales operating base established on Sendai in 1963, Tokyo in 1964 and Nagano in 1966 |
| 1967 (Showa 42) | The company name changed to Kuramoto Co., Ltd. |
| 1970s - | Sales operating base established on Aomori in 1974 and Koriyama in 1976 |
| 1973 (Showa 48) | Our company celebrates the 35th anniversary of foundation and Seoul training tour conducted (Participated 132 companies of customers) |
| 1974 (Showa 49) | The capital increased to ¥42,500,000 |
| 1975 (Showa 50) | Opened the Tokyo branch of the former site of the current Headquarters building (headquarters relocation) |
| 1980s - | Sales operating base established on Oyama in 1988 and Nigata in 1988 |
| 1985 (Showa 60) | The capital increased to ¥60,700,000 |
| 1988 (Showa 63) | The 50th anniversary of foundation, Hawaii conducted training tour for all employees |
| 1990 (Heisei 2) | Sales operating base established on Kanagawa and Kanazawa in 1988 and the capital increased to ¥91,050,000 |
| 1993 (Heisei 5) | Started sales systems for electrical component maintenance business. Started a business information and telecommunication (Opened NTT DoCoMo shop) |
| 1994 (Heisei 6) | Technical services division established and started manufacturing of rebuilt products |
| 1995 (Heisei 7) | DoCoMo shop Nerima station store opened |
| 2000 (Heisei 12) | Sapporo sales office established |
| 2001 (Heisei 13) | Rebuilt products of house brand (12V/24V) officially released |
| 2003 (Heisei 15) | Present DoCoMo shop Ekoda store opened |
| 2005 (Heisei 17) | Takasaki sales office established |
| 2007 (Heisei 19) | Present DoCoMo shop Nakamurabashi store opened |
| 2007 (Heisei 19) | The Kuramoto second building completed (Nerima, Tokyo) |
| 2009 (Heisei 21) | Rebuilt factory and Takasaki sales office relocated |
| 2010 (Heisei 22) | Nagoya salse office established, Present DoCoMo shop Hikawadai store opened |
| 2013 (Heisei 25) | Fukuoka salse office established |
| 2014 (Heisei 26) | Present DoCoMo shop Nakamurabashi store relocated |
| 2014 (Heisei 26) | Fukuoka salse office relocated |
| 2015 (Heisei 27) | Transfer of Business from Fukuoka-Nissin Co., Ltd. |
| 2015 (Heisei 27) | Sendai branch relocated |
| 2017 (Heisei 29) | Present DoCoMo shop Hikawadai store relocated/Nagano salse office closed |
| 2018 (Heisei 30) | Present DoCoMo shop Ekoda store relocated/Takasaki salse office closed |
| 2018 (Heisei 30) | Osaka salse office established |
| 2022 (Reiwa 4) | Niigata branch relocated |
2023 (Reiwa 5) | DoCoMo shop Hikawadai store closed |
2025 (Reiwa 7) | Hiroshima salse office established |
