KI

Keiji Ishibashi

Sumitomo Electric Industries: 4 patents #37 of 571Top 7%
📍 Itami, JP: #7 of 117 inventorsTop 6%
Overall (2018): #41,596 of 503,207Top 9%
4
Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10113248 Group III nitride crystal substrate, epilayer-containing group III nitride crystal substrate, semiconductor device and method of manufacturing the same Yusuke Yoshizumi, Shugo Minobe 2018-10-30
10078059 Nitride crystal, nitride crystal substrate, epilayer-containing nitride crystal substrate, semiconductor device and method of manufacturing the same Tokiko Kaji, Seiji Nakahata, Takayuki Nishiura 2018-09-18
9923063 Group III nitride composite substrate and method for manufacturing the same, laminated group III nitride composite substrate, and group III nitride semiconductor device and method for manufacturing the same Takuya Yanagisawa, Koji Uematsu, Yuki Seki, Yoshiyuki Yamamoto 2018-03-20
9917004 Group III nitride composite substrate and method for manufacturing the same, and method for manufacturing group III nitride semiconductor device Akihiro Hachigo, Yuki Hiromura, Naoki Matsumoto, Seiji Nakahata, Fumitake Nakanishi +6 more 2018-03-13