Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11145799 | LED module having LED chips as light source | Masahiko Kobayakawa, Riki SHIMABUKURO | 2021-10-12 |
| 10756247 | LED module having LED chips as light source | Masahiko Kobayakawa, Riki SHIMABUKURO | 2020-08-25 |
| 10038130 | LED module having LED chips as light source | Masahiko Kobayakawa, Riki SHIMABUKURO | 2018-07-31 |
| 9548287 | LED module having LED chips as light source | Masahiko Kobayakawa, Riki SHIMABUKURO | 2017-01-17 |
| 8901578 | LED module having LED chips as light source | Masahiko Kobayakawa, Riki SHIMABUKURO | 2014-12-02 |
| 7429759 | Optical semiconductor device with improved illumination efficiency | — | 2008-09-30 |
| 7242033 | Semiconductor device using LED chip | Tomoji Yamaguchi | 2007-07-10 |
| 7202507 | Optical semiconductor device | — | 2007-04-10 |
| 7128444 | Light emitting diode lamp | Tomoji Yamaguchi | 2006-10-31 |
| 7002185 | Semiconductor device using semiconductor chip | — | 2006-02-21 |
| 6847116 | Chip-type semiconductor light-emitting device | — | 2005-01-25 |
| 6686607 | Structure and method for mounting a semiconductor element | — | 2004-02-03 |
| 6670648 | Semiconductor light-emitting device having a reflective case | Tadahiro Okazaki | 2003-12-30 |
| 6335545 | Light emitting diode element | Hidekazu Toda | 2002-01-01 |
| 6184544 | Semiconductor light emitting device with light reflective current diffusion layer | Hidekazu Toda | 2001-02-06 |
| 6121637 | Semiconductor light emitting device with increased luminous power | Hidekazu Toda | 2000-09-19 |
| 6084252 | Semiconductor light emitting device | Hidekazu Toda | 2000-07-04 |
| 6054716 | Semiconductor light emitting device having a protecting device | Masayuki Sonobe, Tsuyoshi Tsutsui, Shunji Nakata, Norikazu Itoh, Hidekazu Toda | 2000-04-25 |