Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835112 | Electroluminescent lamp and method for manufacturing the same | Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka | 2004-12-28 |
| 6831411 | Electroluminescent lamp having luminescent layer with phosphor particles fixed uniformly | Akito Kawasumi, Shinji Okuma, Yosuke Chikahisa, Naohiro Nishioka | 2004-12-14 |
| 6777626 | Input device and portable equipment using the same | Kenicni Takabatake, Toshiharu Fukui, Kenichi Matsumoto, Hirofumi Komiya | 2004-08-17 |
| 6741028 | EL element with dielectric insulation layer | Yosuke Chikahisa, Naohiro Nishioka | 2004-05-25 |