Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9595635 | Point source light-emitting diode | Masumi Hirotani, Shinji Iio, Hidetoshi Sone, Cheng-Chung Yang | 2017-03-14 |
| 7880187 | Semiconductor light emitting device having narrow radiation spectrum | Ken Sasakura, Hanako Ono | 2011-02-01 |
| 7084422 | Semiconductor light emitting device having quantum well layer sandwiched between carrier confinement layers | Tsuyoshi Maruyama, Kazuhisa Ishii, Ken Sasakura, Shotaro Tomita, Toshio Tomiyoshi | 2006-08-01 |
| 6900467 | Semiconductor light emitting device having quantum well layer sandwiched between carrier confinement layers | Tsuyoshi Maruyama, Kazuhisa Ishii, Ken Sasakura, Shotaro Tomita, Toshio Tomiyoshi | 2005-05-31 |
| 5980571 | Substitute-heart control apparatus | Takashi Nomura, Douglas W. Blakely, Setsuo Takatani | 1999-11-09 |
| 5707900 | Method of heat-treating semiconductor crystal of a group II-group VI compound | Michihiro Sano | 1998-01-13 |
| 4749618 | Tip member for coating tool | Kiyoshi Kuroyanagi, Gengo Shinada, Yasutaka Shinguu | 1988-06-07 |
| 4664711 | Ink for marking pen | Takafusa Ando | 1987-05-12 |