Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D660467 | Light emitting diode lamp | Junichiro Yamamoto, Tomohiko Sato, Makoto Sakai, Kozo Ogawa | 2012-05-22 |
| 7295785 | Receiver, electronic apparatus, and discharge lamp lighting apparatus | Yuuji Takahashi, Noriyuki Kitamura, Katsuyuki Kobayashi, Hirokazu Otake, Keiichi Shimizu | 2007-11-13 |
| 7268496 | Discharge lamp lighting device and lighting system | Yuuji Takahashi, Masahiko Kamata | 2007-09-11 |
| 6891336 | High pressure discharge lamp lighting apparatus and luminaire using thereof | — | 2005-05-10 |
| 6791281 | High pressure discharge lamp lighting apparatus and luminaire using thereof | — | 2004-09-14 |
| 6710551 | High-intensity discharge lamp lighting apparatus and luminaire for using the same | Hideo Kozuka | 2004-03-23 |
| 6388394 | High-intensity discharge lamp lighting device and lighting system | Hisashi Honda, Seiji Ashida | 2002-05-14 |
| 6184632 | Lighting apparatus including circuit to detect an electrical characteristic of a component of a lamp mounted in the apparatus | Masahiko Kamata, Kazuo Takita | 2001-02-06 |
| 5939836 | Discharge lamp lighting apparatus and lighting apparatus | Keiichi Shimizu, Kazuyuki Uratani, Fuminori Nakaya | 1999-08-17 |
| 5737207 | Power supply | Kazuyuki Uratani, Noriyuki Kitamura, Tsutomu Kakitani, Yuji Takahashi, Keiichi Shimizu | 1998-04-07 |
| 5237242 | Apparatus for operating a discharge lamp and a lighting unit having the apparatus | Keiji Takahashi | 1993-08-17 |
| 5087862 | Discharge lamp lighting apparatus for controlling voltage of switching transistor by raising starting voltage | Keiichi Shimizu | 1992-02-11 |