Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6340870 | Lighting circuit for discharge lamp | Jun Yabuzaki | 2002-01-22 |
| 6175190 | Discharge-lamp lighting circuit | Hiroki Ishibashi | 2001-01-16 |
| 6153987 | Lighting circuit for discharge lamp | Atsushi Toda | 2000-11-28 |
| 6087776 | Discharge lamp lighting circuit with protection circuit | Atsushi Toda, Jun Yabuzaki | 2000-07-11 |
| 6034487 | Lighting circuit for discharge lamp | Atsushi Toda | 2000-03-07 |
| 6034490 | Lighting circuit for discharge lamp | Atsushi Toda, Hideaki Takeuchi | 2000-03-07 |
| 6002215 | Lighting circuit for discharge lamp | Atsushi Toda, Jun Yabuzaki | 1999-12-14 |
| 5973457 | Lighting circuit for discharge lamp | Atsushi Toda, Jun Yabuzaki | 1999-10-26 |
| 5939835 | Discharge lamp lighting device with power system, control system and power source system | Hitoshi Takeda, Toru Nakayama, Goichi Oda | 1999-08-17 |
| 5936361 | Discharge lamp lighting circuit with lighting condition detector | Atsushi Toda | 1999-08-10 |
| 5925983 | Circuit for inhibiting the supply of power to a discharge lamp | Atsushi Toda | 1999-07-20 |
| 5914566 | Lighting circuit for applying a negative AC voltage to a discharge lamp | Akihiro Matsumoto, Jun Yabuzaki | 1999-06-22 |
| 5907224 | Abnormality detecting circuit for discharge lamp with delayed interruption for undervoltage | Atsushi Toda, Goichi Oda | 1999-05-25 |
| 5828177 | Light circuit for discharge lamp | Atsushi Toda, Goichi Oda | 1998-10-27 |
| 5783908 | Lighting circuit wherein the abnormality detection circuit gets its power directly from the auxiliary power supply section | Atsushi Toda, Goichi Oda | 1998-07-21 |
| 5705898 | Lighting circuit for discharge lamp which restricts inversion of output voltage polarity | Atsushi Toda | 1998-01-06 |
| 5663613 | Lighting circuit for discharge lamp | Atsushi Toda | 1997-09-02 |
| 5629588 | Lighting circuit utilizing DC power for a discharge lamp utilizing AC power | Goichi Oda, Atsushi Toda | 1997-05-13 |
| 5572094 | Lighting circuit for discharge lamp | Atsushi Toda, Goichi Oda | 1996-11-05 |
| 5565743 | Lighting circuit for discharge lamp | Goichi Oda | 1996-10-15 |
| 5514935 | Lighting circuit for vehicular discharge lamp | Goichi Oda | 1996-05-07 |
| 5486740 | Lighting circuit for vehicular discharge lamp having DC/AC converter | Atsushi Toda | 1996-01-23 |
| 5485059 | Lighting circuit for vehicular discharge lamp | Atsushi Toda | 1996-01-16 |
| 5449973 | Lighting circuit for vehicular discharge lamp | Goichi Oda, Masaru Sasaki | 1995-09-12 |
| 5438480 | Printed circuit board and electronic parts to be mounted thereon | — | 1995-08-01 |