※
（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 |
| 9月 | Large-scale (10 billion) syndicated loan established for the Irish Republic with DKB serving as lead manager. | ||
| 10月 | DKB cited by NTT for con ribution to the company's funding in 30 years' service as the sole commissioned bank for NTT bonds. | ||
| 10月 | Dai-Ichi Kangyo Bank (Canada) attains the highest credit rating in Canada. | ||
| 11月 | Heart Personal Computer Service initiated. | ||
| 12月 | Housing loan balance tops 1 trillion. | ||
| 昭和59年（1984） | - | 【竜門社】「渋沢・クローデル賞」の共催に参加する。 | 渋沢関係略年譜 |
| 1月 | Joint use of CD and ATM services by 13 city banks (BANCS system) begun. | ||
| 3月 | First computer for the Third On-line Use of Computers Plan placed in service. | ||
| 3月 | San Francisco Representative Office opened. | ||
| 3月 | DKB appointed a lead manager for a participation loan (totaling 30 billion) for the Malaysian Government. | ||
| 4月 | The Fifth Long-Term Management Plan launched. | ||
| 4月 | Moody's Investors Service gives DKB its top long-term Triple-A (Aaa) rating. | ||
| 4月 | Naha Branch opened. | ||
| 5月 | Shanghai Representative Office opened. | ||
| 6月 | DKB rated first in total assets and second in deposits by American Banker. | ||
| 6月 | Dealing in government bonds initiated. | ||
| 10月 | Japan's first lump-sum payment system begun. | ||
| 11月 | Heart Finance Co., Ltd., a consumer finance company, established. | ||
| 11月 | Heart Telephone Service in Transfer and Payment (Pay by Phone) introduced. | ||
| 11月 | New dealing room established. | ||
| 12月 | DKB chapter of the Small Kindness Movement awarded the Clean Prize. |
