|
| US4165604 | 6 juin 1977 | 28 août 1979 | Citizen Watch Co., Ltd. | Solar battery timepiece |
| US4276629 | 27 avr. 1979 | 30 juin 1981 | Citizen Watch Company Limited | Solar battery timepiece |
| US4354115 | 28 nov. 1980 | 12 oct. 1982 | Hitachi, Ltd. | Photocoupling device |
| US4666313 | 1 avr. 1986 | 19 mai 1987 | Junghans Uhren GmbH | Timepiece and drive unit therefor |
| US4882239 | 8 mars 1988 | 21 nov. 1989 | Minnesota Mining and Manufacturing Company | Light-rechargeable battery |
| US7746731 | 13 avr. 2005 | 29 juin 2010 | Citizen Holdings Co., Ltd. | Electronic device with solar cell |
| USD351558 | 6 nov. 1991 | 18 oct. 1994 | | Wrist watch |
| USD648230 | 18 mars 2011 | 8 nov. 2011 | Citizen Holdings Co., Ltd.
Citizen Watch Co., Ltd. | Wrist watch |
