Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12120852 | Composite material and heat dissipation part | Seog Woo Lee, Young Suk Kim | 2024-10-15 |
| 12110446 | Composite material and heat dissipation part comprising the composite material | Seog Woo Lee, Young Suk Kim | 2024-10-08 |
| 11876030 | Clad material and method for producing same | Tomotsugu Aoyama, Hiroto Narieda, Ilho Kim | 2024-01-16 |
| 11285701 | Heat sink plate | Il Ho Kim, Seog Woo Lee, Young Suk Kim, Hiroto Narieda, Tomotsugu Aoyama | 2022-03-29 |
| 10777484 | Heat sink plate | Il Ho Kim, Young Suk Kim | 2020-09-15 |
| D853977 | Heat sink plate | Il Ho Kim, Young Suk Kim | 2019-07-16 |
| 9537053 | III nitride semiconductor device and method of manufacturing the same | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2017-01-03 |
| 9502603 | Vertically structured group III nitride semiconductor LED chip and method for manufacturing the same | Seog Woo Lee, Pil Guk Jang, Ryuichi Toba, Yoshitaka Kadowaki | 2016-11-22 |
| 9184338 | Semiconductor device and method of manufacturing the same | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2015-11-10 |
| 9012935 | Vertically structured group III nitride semiconductor LED chip and method for manufacturing the same | Seog Woo Lee, Pil Guk Jang, Ryuichi Toba, Tatsunori Toyota, Yoshitaka Kadowaki | 2015-04-21 |
| 8962362 | Vertically structured group III nitride semiconductor LED chip and method for manufacturing the same | Seog Woo Lee, Pil Guk Jang, Ryuichi Toba, Tatsunori Toyota, Yoshitaka Kadowaki | 2015-02-24 |
| 8963290 | Semiconductor device and manufacturing method therefor | Ryuichi Toba, Yoshitaka Kadowaki, Seog Woo Lee, Pil Guk Jang | 2015-02-24 |
| D711581 | Lighting element | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2014-08-19 |
| D711583 | Lighting element | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2014-08-19 |
| D711582 | Lighting element | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2014-08-19 |
| D703863 | Lighting elements | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2014-04-29 |
| D703862 | Lighting elements | Seog Woo Lee, Ryuichi Toba, Yoshitaka Kadowaki | 2014-04-29 |
| 8216869 | Group III nitride semiconductor and a manufacturing method thereof | Takafumi Yao, Ryuichi Toba | 2012-07-10 |
| 8124504 | Method for growth of GaN single crystal, method for preparation of GaN substrate, process for producing GaN-based element, and GaN-based element | Takafumi Yao | 2012-02-28 |
| 8119499 | Semiconductor substrate fabrication by etching of a peeling layer | Takafumi Yao | 2012-02-21 |
| 7906409 | Device manufacturing method | Takafumi Yao | 2011-03-15 |
| 7829207 | Manufacture method for ZnO based compound semiconductor crystal and ZnO based compound semiconductor substrate | Hiroyuki Kato, Michihiro Sano, Katsumi Maeda, Hiroshi Yoneyama, Takafumi Yao | 2010-11-09 |
| 7829435 | Method for growth of GaN single crystal, method for preparation of GaN substrate, process for producing GaN-based element, and GaN-based element | Takafumi Yao | 2010-11-09 |
| 7438762 | Manufacture method for ZnO based compound semiconductor crystal and ZnO based compound semiconductor substrate | Hiroyuki Kato, Michihiro Sano, Katsumi Maeda, Hiroshi Yoneyama, Takafumi Yao | 2008-10-21 |
| 6664570 | P-type contact electrode device and light-emitting device | Takafumi Yao | 2003-12-16 |