- 2021 - 2025 Visible, long wavelength LEDs based on In-rich InGaN on ScAlMgO4 substrates
- 2020 - 2025 Light emitting synthesizer : aiming to create the ultimate lighting devices
- 2020 - 2021 ScAlMgO4基板上へのInリッチInGaN系LEDの実現
- 2016 - 2021 近接場分光(SNOM)による特異構造の発光機構解明と制御
- 2016 - 2021 Elucidation and control of carrier recombination processes for the realization of AlGaN-based ultra-high efficiency ultraviolet light emitting devices
- 2015 - 2020 Achievement of Tailor-made Lighting Sources by the Control of Nanoscopic Carrier Localization in Nitride Semiconductors
- 2016 - 2018 Fabrication of nitride-semiconductor-based light-emitters on a reusable substrate
- 2015 - 2016 深紫外近接場分光による超ワイドギャップ半導体の物性解明
- 2009 - 2014 Development of Key Technologies for the Multi-probe Spectroscopy based on Near-field Optics
- 2006 - 2011 Optoelectronics Frontier by Nitride Semiconductor-Ultimate Utilization of Nitride Semiconductor Material Potential-
- 2006 - 2010 Assessment and control of radiative/nonradiative recombination processes in In-rich InGaN and in Al-rich AlGaN
- 2007 - 2009 Development of nitride-semiconductor based green laser diodes on a novel semipolar plane
- 2006 - 2008 Development of key technologies for the measurement of luminescence dynamics in the nano-space
- 2003 - 2005 The assessment of emission mechanism in GaN-based nano-structures by scanning near-field optical microscopy
- 2003 - 2004 Research on precise artificial structure and position control of ultra-small nanodots, nanorods, and nanolines
- 2000 - 2002 Study on nonradiative recombination mechanism in widegap semiconductors
- 1999 - 2000 表面エネルギー変調エピタキシーによる半導体不整合系へテロ構造の作製
- 1998 - 2000 Basic Research for the Fabrication of Light Emitting Devices Utilizing Quantum Confined Exciton Molecules
- 1990 - 2000 II-VI/III-V異族半導体多層構造に関する研究
- 1990 - 2000 Study on II-VI/III-V hetero-valent multilayered structures
- 1999 - 1999 半導体/強磁性体薄膜多層構造による励起子磁気光学効果の創出
- 1999 - 六方晶 GaN の有機金属気相成長
- 1999 - MOVPE of Hexagonal GaN
- 1997 - 1998 原子価不整合系半導体ヘテロ界面の原子層レベル制御とバンド不連続量
- 1995 - 1997 Dynamics of Semiconductor Vapor Growth with Photocatalytic Surface Reactions
- 1997 - 立方晶GaNの有機金属気相成長
- 1997 - MOVPE of cubic GaN
- 1994 - 1994 異族半導体多層構造の作製と界面物性に関する研究
- 1993 - 1994 Epitaxial Growth of Novel II-VI Semiconductor Alloys for Ultraviolet Optical Devices
- 1993 - 1993 異族半導体AlGaAs-ZnSe新人工多層構造の作製と新物性に関する研究
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