※
（グレーの背景色）は、「渋沢関係略年譜」を参考のために表示しています。この社史に掲載されている年表項目ではありません。
| 年 | 月日 | 事項 | 年表種別 |
|---|---|---|---|
| 昭和57年（1982） | - | 【渋沢史料館】渋沢青淵記念財団竜門社付属渋沢史料館を開館する。 | 渋沢関係略年譜 |
| 6月 | Deputy Presidents Tetsuo Fujimori and Nobuya Hagura appointed Chairman and President, respectively. | ||
| 6月 | Japan's first completely automatic safe-deposit boxes put into service at Yurakucho Branch. | ||
| 6月 | Heart Large-Denomination Credit Line (customer loan) service introduced. | ||
| 7月 | Sankin-kai begins "Study of Problems Related to the Liberalization of Communications Circuits. | ||
| 7月 | Seminar on Inheritance initiated. | ||
| 7月 | Yen-denominated Heart Traveler's Checks marketed. | ||
| 11月 | National Heart Circle Activities Presentation Meeting held. | ||
| 11月 | Consumer loan balance tops 1 trillion. | ||
| 12月 | Heart Asset-Budding Pension Deposit service initiated. | ||
| 12月 | Heart Computer Consultation Service introduced. | ||
| 12月 | Individual deposits balance tops 5 trillion. | ||
| 昭和58年（1983） | - | 【竜門社】「青淵翁を偲ぶ座談会」を開催する。 | 渋沢関係略年譜 |
| 2月 | Heart Credit Service, Ltd., established. | ||
| 4月 | The Dai-Ichi Kangin Systems Development Co., Ltd. established. | ||
| 4月 | Counter sales of public bonds (e.g., government bond) begun. | ||
| 4月 | DKB organizes a large-scale, yen-based syndicated loan for Indonesia (76.8 billion). | ||
| 6月 | Heart's Data Transmission Service implemented. | ||
| 7月 | All branches switched to the new HOPS on-line system. | ||
| 7月 | Beijing Representative Office opened. | ||
| 8月 | Once-a-month five-day work week introduced. | ||
| 9月 | Heart Government Bond Time Deposit Account Asset introduced. |
