Patent Grant
D403990
| Number | Name | Date | Kind |
|---|---|---|---|
| D289988 | Ito | May 1987 | |
| D300523 | Ito et al. | Apr 1989 | |
| D307119 | Yeh | Apr 1990 | |
| D325562 | Moyi et al. | Apr 1992 | |
| D341341 | Nakurama et al. | Nov 1993 | |
| D361741 | Sofue et al. | Aug 1995 | |
| 4557345 | Hamane et al. | Dec 1985 | |
| 4715465 | Takahashi et al. | Dec 1987 | |
| 4723619 | Yamamoto et al. | Feb 1988 | |
| 5613569 | Sugioka et al. | Mar 1997 | |
| 5647450 | Ogawa et al. | Jul 1997 |
