Issued Patents All Time
Showing 151–175 of 194 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6445085 | Vehicle headlamp leveling device | Nobuhiko Muramatsu, Hideaki Takeuchi | 2002-09-03 |
| 6438478 | Automatic leveling system for automotive headlamps | Hideaki Takeuchi | 2002-08-20 |
| 6430521 | Vehicle headlamp leveling device | — | 2002-08-06 |
| 6357898 | Automatic automobile headlamp leveling device | Hideaki Takeuchi | 2002-03-19 |
| 6349251 | Automatic automobile headlamp leveling device | Hideaki Takeuchi | 2002-02-19 |
| 6332698 | Automatic leveling apparatus for use with vehicle headlamps | Hideaki Takeuchi, Makoto Izawa | 2001-12-25 |
| 6305823 | Automatic leveling device for automotive vehicle headlamps | Hideaki Takeuchi | 2001-10-23 |
| 6208089 | Discharge-lamp lighting circuit | Masayasu Ito, Jun Yabuzaki | 2001-03-27 |
| 6183118 | Automatic leveling apparatus for use with automobile headlamps | Hideaki Takeuchi | 2001-02-06 |
| 6153987 | Lighting circuit for discharge lamp | Masayasu Yamashita | 2000-11-28 |
| 6087776 | Discharge lamp lighting circuit with protection circuit | Masayasu Yamashita, Jun Yabuzaki | 2000-07-11 |
| 6034487 | Lighting circuit for discharge lamp | Masayasu Yamashita | 2000-03-07 |
| 6034490 | Lighting circuit for discharge lamp | Masayasu Yamashita, Hideaki Takeuchi | 2000-03-07 |
| 6031244 | Luminescent semiconductor device with antidiffusion layer on active layer surface | Hiroyasu Noguchi, Kazushi Nakano, Akira Ishibashi, Satoshi Taniguchi, Tomonori Hino +1 more | 2000-02-29 |
| 6002215 | Lighting circuit for discharge lamp | Masayasu Yamashita, Jun Yabuzaki | 1999-12-14 |
| 5973457 | Lighting circuit for discharge lamp | Masayasu Yamashita, Jun Yabuzaki | 1999-10-26 |
| 5936361 | Discharge lamp lighting circuit with lighting condition detector | Masayasu Yamashita | 1999-08-10 |
| 5925983 | Circuit for inhibiting the supply of power to a discharge lamp | Masayasu Yamashita | 1999-07-20 |
| 5907224 | Abnormality detecting circuit for discharge lamp with delayed interruption for undervoltage | Masayasu Yamashita, Goichi Oda | 1999-05-25 |
| 5900697 | Vehicle discharge lamp lighting circuit with current-limiting DC impedance | — | 1999-05-04 |
| 5828177 | Light circuit for discharge lamp | Goichi Oda, Masayasu Yamashita | 1998-10-27 |
| 5783908 | Lighting circuit wherein the abnormality detection circuit gets its power directly from the auxiliary power supply section | Masayasu Yamashita, Goichi Oda | 1998-07-21 |
| 5705898 | Lighting circuit for discharge lamp which restricts inversion of output voltage polarity | Masayasu Yamashita | 1998-01-06 |
| 5663613 | Lighting circuit for discharge lamp | Masayasu Yamashita | 1997-09-02 |
| 5629588 | Lighting circuit utilizing DC power for a discharge lamp utilizing AC power | Goichi Oda, Masayasu Yamashita | 1997-05-13 |