Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11641009 | Light-emitting device | Takashi Fukuda, Tetsuya Gouda, Yuta Sakimoto, Naoto Hirosaki | 2023-05-02 |
| 9711686 | Lighting device with plural fluorescent materials | Kenichi Yoshimura, Hiroshi Fukunaga | 2017-07-18 |
| 9631140 | Light-emitting device | Kenichi Yoshimura, Hiroshi Fukunaga, Masamichi Harada | 2017-04-25 |
| 9570655 | Semiconductor light-emitting device | Kenichi Yoshimura, Hiroshi Fukunaga | 2017-02-14 |
| 9322529 | Light emitting device | Kenichi Yoshimura, Hiroshi Fukunaga, Masatsugu Masuda | 2016-04-26 |
| 9279079 | Method of manufacturing phosphor, light-emitting device, and image display apparatus | Masamichi Harada, Naoto Hirosaki | 2016-03-08 |
| 8928005 | Light-emitting device | Kenichi Yoshimura, Hiroshi Fukunaga, Naoto Hirosaki | 2015-01-06 |
| 8901591 | Light-emitting device | Kenichi Yoshimura, Hiroshi Fukunaga, Naoto Hirosaki | 2014-12-02 |
| 8674392 | Light-emitting device | Kenichi Yoshimura, Hiroshi Fukunaga, Naoto Hirosaki | 2014-03-18 |
| 7611642 | Oxynitride phosphor and light emitting device | Naoto Hirosaki | 2009-11-03 |
| 7494606 | Oxynitride phosphor and semiconductor light-emitting device | Naoto Hirosaki | 2009-02-24 |
| 4899349 | Semiconductor laser device | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1990-02-06 |
| 4860297 | Quantum well semiconductor laser device | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1989-08-22 |
| 4841533 | Semiconductor laser device having a graded index waveguide | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1989-06-20 |
| 4835783 | Semiconductor laser | Takahiro Suyama, Toshiro Hayakawa, Masafumi Kondo, Saburo Yamamoto | 1989-05-30 |
| 4824518 | Method for the production of semiconductor devices | Toshiro Hayakawa, Takahiro Suyama, Saburo Yamamoto | 1989-04-25 |
| 4807235 | Semiconductor laser device | Takahiro Suyama, Saburo Yamamoto, Toshiro Hayakawa, Masafumi Kondo | 1989-02-21 |
| 4806994 | Semiconductor device | Toshiro Hayakawa, Takahiro Suyama, Saburo Yamamoto | 1989-02-21 |
| 4787089 | Quantum well semiconductor laser device | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1988-11-22 |
| 4769822 | Semiconductor laser device | Takahiro Suyama, Saburo Yamamoto, Toshiro Hayakawa, Masafumi Kondo | 1988-09-06 |
| 4761790 | Optical semiconductor device | Toshiro Hayakawa, Takahiro Suyama, Saburo Yamamoto | 1988-08-02 |
| 4750183 | Semiconductor laser device | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1988-06-07 |
| 4745612 | Separate confinement heterostructure semiconductor laser device | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1988-05-17 |
| 4737959 | Semiconductor laser array device | Takahiro Suyama, Toshiro Hayakawa, Saburo Yamamoto | 1988-04-12 |
| 4720833 | Semiconductor laser apparatus | Takahiro Suyama, Toshiro Hayakawa, Saburo Yamamoto | 1988-01-19 |