Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10914444 | Lamp unit, vehicular lamp system | Yasuo Toko, Masafumi Ohno, Yoshihisa Iwamoto | 2021-02-09 |
| 10895820 | Pulse signal generation circuit and image forming apparatus including the same | — | 2021-01-19 |
| 10738958 | Lighting device | Yasuo Toko, Takashi Sugiyama | 2020-08-11 |
| 10571090 | Automotive headlight | Yasuo Toko, Ryotaro Owada | 2020-02-25 |
| 10551018 | Vehicular lamp, vehicular lamp system | Yasuo Toko, Ryotaro Owada | 2020-02-04 |
| 10534231 | Lighting device | Yasuo Toko | 2020-01-14 |
| 8044591 | Fluorescent lamp and lighting unit | Naoyuki Matsubara | 2011-10-25 |
| 7775847 | Method for manufacturing hot cathode fluorescent lamp | Naoyuki Matsubara, Masayuki Kanechika, Kazuhiro Miyamoto, Toshiyuki Nagahara, Junji Matsuda | 2010-08-17 |
| 6724145 | Discharge lamp | Masaaki Muto, Shigeru Shibayama, Hiroharu Shimada, Isamu Sato, Shinya Omori +3 more | 2004-04-20 |
| 6121729 | Metal halide lamp | Toshiyuki Nagahara | 2000-09-19 |
| 5936350 | Metal halide headlamp | Mitsunari Yoshida, Toshiyuki Nagahara | 1999-08-10 |
| 5101991 | Nipple for nursing bottle | Yasuo Morifuji | 1992-04-07 |
| 4993568 | Nipple for nursing bottles | Yasuo Morifuji | 1991-02-19 |