Issued Patents 2003
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654684 | Navigation apparatus and method that performs route guiding to a provider location | Akira Shinada, Eiichi Tanaka, Makoto Sasaki, Shigeru Tanaka | 2003-11-25 |
| 6624594 | Discharge lamp lighting circuit | Hitoshi Takeda, Akihiro Mochizuki | 2003-09-23 |
| 6617809 | Discharge lamp lighting circuit | Hitoshi Takeda | 2003-09-09 |
| 6617808 | Discharge-lamp lighting circuit | Akihiro Mochizuki, Hitoshi Takeda | 2003-09-09 |
| 6617807 | Discharge lamp lighting circuit for a plurality of discharge lamps | Hitoshi Takeda | 2003-09-09 |
| 6600297 | Power supply unit for regulating output voltage using a series regulator | Hitoshi Takeda, Tomokazu Suzuki | 2003-07-29 |
| 6597131 | Discharge lamp lighting circuit | Hitoshi Takeda | 2003-07-22 |
| 6583587 | Discharge lamp lighting circuit | Hitoshi Takeda | 2003-06-24 |
| 6583570 | Discharge lamp device for vehicle | Hiroshi Takeda, Shuji Matsuura, Akihiro Mochizuki, Hiroki Ishibashi, Akihiro Matsumoto | 2003-06-24 |
| 6583585 | Discharge lamp lighting circuit | Hitoshi Takeda, Toru Nakayama | 2003-06-24 |
| 6563275 | Discharge lamp lighting circuit | Hitoshi Takeda | 2003-05-13 |
| 6552501 | Discharge lamp lighting circuit with protection circuit | Hitoshi Takeda | 2003-04-22 |
| 6546333 | Car navigation apparatus, traffic information providing apparatus, program recording medium for car navigation apparatus, and program recording medium for traffic information providing apparatus | Eiichi Tanaka, Akira Shinada, Makoto Sasaki, Shigeru Tanaka | 2003-04-08 |
| 6534930 | Discharge lamp lighting circuit with protection circuit | Hitoshi Takeda | 2003-03-18 |
| 6522557 | Inverter device | Hitoshi Takeda | 2003-02-18 |
| 6504316 | Discharge lamp lighting circuit | Hitoshi Takeda | 2003-01-07 |