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Dive into the research topics where Yohei Wakai is active.

Publication


Featured researches published by Yohei Wakai.


Archive | 2010

Method for manufacturing substrate for semiconductor light emitting element and semiconductor light emitting element using the same

Shunsuke Minato; Junya Narita; Yohei Wakai; Yukio Narukawa; Motokazu Yamada


Archive | 2011

SAPPHIRE SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME AND NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE

Junya Narita; Yohei Wakai; Takayoshi Wakaki


Archive | 2011

Substrate for semiconductor light-emitting element, method of manufacturing the same, and semiconductor light-emitting element using substrate

Yoshiki Inoue; Junya Narita; Takuya Okada; Yohei Wakai; 芳樹 井上; 岡田 卓也; 准也 成田; 陽平 若井


Archive | 2011

Sapphire substrate, method for producing same, and nitride semiconductor light emitting element

Junya Narita; Yohei Wakai; Takayoshi Wakaki


Archive | 2013

Sapphire substrate and semiconductor

Junya Narita; Takuya Okada; Yohei Wakai; Yoshiki Inoue; Naoya Sako; Katsuyoshi Kadan


Archive | 2013

Sapphire substrate having triangular projections with bottom sides formed of outwardly curved lines

Junya Narita; Takuya Okada; Yohei Wakai; Yoshiki Inoue; Naoya Sako; Katsuyoshi Kadan


Archive | 2013

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE

Junya Narita; Takuya Okada; Yohei Wakai; Yoshiki Inoue; Naoya Sako; Katsuyoshi Kadan


Archive | 2011

Sapphire substrate and nitride semiconductor light emitting device

Junya Narita; Yohei Wakai; Takayoshi Wakaki


Archive | 2012

Semiconductor light-emitting element substrate manufacturing method and semiconductor light-emitting element using the same

Shunsuke Minato; 俊介 湊; Junya Narita; 准也 成田; Yohei Wakai; 陽平 若井; Yukio Narukawa; 幸男 成川; Motokazu Yamada; 元量 山田


Archive | 2017

METHOD FOR MANUFACTURING A GALLIUM NITRIDE COMPOUND SEMICONDUCTOR LIGHT EMITTING ELEMENT

Takashi Ichihara; Hirofumi Yoshida; Takao Yamada; Yohei Wakai

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