| Number | Name | Date | Kind |
|---|---|---|---|
| D275770 | Yamada | Oct 1984 | S |
| 4596923 | Kuo | Jun 1986 | A |
| D377043 | Takahata | Dec 1996 | S |
| D377190 | Matsuda | Jan 1997 | S |
| D408437 | Kurabuti et al. | Apr 1999 | S |
| D409226 | Kurabuti et al. | May 1999 | S |
| D409227 | Takahata et al. | May 1999 | S |
| Entry |
|---|
| OPD (Office Products Dealer); Jan. 1982; p. 80; Pocket calculator by Sharp, bottom middle of page. |