Sheets of Japan, 1998
| Issuer | Date | Desc | State | ||
| - |  |
Japan | 2/5/1998 | Winter Olympics 1998, sheet of 10 types | incomplete |
| - |  |
Japan | 7/23/1998 | Letter Writing Day 1998, sheet of 1 type | all added |
| - |  |
Japan | 12/15/1998 | 50th Anniversary of New Year's Greetings Stamps, empty sheet (#7587) | incomplete |