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| Number | Title | Issue Date |
| 6194841 | Discharge lamp lighting device A discharge lamp lighting device in which dim control can be performed for a discharge lamp continuously and stably in a wide range, and which is simple in circuit configuration and low in price. The discharge lamp lighting device comprises: an inverter (... | 02/27/2001 |
| 6181087 | Discharge lamp operating device A discharge lamp lighting apparatus according to this invention comprises: an inverting circuit for converting a DC input into a high frequency output; a load circuit which is connected to the inverting circuit and is constructed by a plurality of dischar... | 01/30/2001 |
| 6049179 | High-pressure discharge lamp lighting apparatus To provide a high-pressure discharge lamp lighting apparatus which is adapted to be used in common for several kinds of AC voltages such as 100 V and 200 V, which is small in size, and which can secure good starting property with less circuit loss in use ... | 04/11/2000 |
