| 12249628 |
Method of forming p-type nitride semiconductor layer |
Katsuhiro KISHIMOTO, Yoichi Kawakami, Kunimichi OMAE |
2025-03-11 |
| 8686401 |
Ultraviolet irradiation apparatus |
Yoichi Kawakami, Takao Oto, Ryan Ganipan Banal, Masanori Yamaguchi, Ken Kataoka +1 more |
2014-04-01 |
| 8479308 |
Scanning probe microscope and method for detecting proximity of probes thereof |
Katsuhito Nishimura, Yoichi Kawakami, Akio Kaneta, Tsuneaki Hashimoto |
2013-07-02 |
| 7560859 |
Fluorescent material having two layer structure and light emitting apparatus employing the same |
Shigeo Fujita, Tatsuya Morioka, Shizuo Fujita, Yoichi Kawakami, Masafumi Harada +1 more |
2009-07-14 |
| 7348600 |
Nitride semiconductor device, and its fabrication process |
Yukio Narukawa, Isamu Niki, Axel Scherer, Koichi Okamoto, Yoichi Kawakami +1 more |
2008-03-25 |
| 6876009 |
Nitride semiconductor device and a process of manufacturing the same |
Yukio Narukawa, Isamu Niki, Axel Scherer, Koichi Okamoto, Yoichi Kawakami +1 more |
2005-04-05 |
