R. Ishihara (2024), Heteroepitaxial growth of single crystalline diamond.

R. Ishihara, J. Hermias, S. Neji, K. Y. Yu, M. Van Der Maas, S. Nur, T. Iwai, T. Miyatake, S. Miyahara, More Authors (2023), 3D Integration for Modular Quantum Computer based on Diamond Spin Qubits, In Proceedings of the 2023 IEEE International Interconnect Technology Conference and IEEE Materials for Advanced Metallization Conference, IITC/MAM 2023, IEEE.

Toshiki Iwai, Kenichi Kawaguchi, Tetsuya Miyatake, Tetsuro Ishiguro, Shoichi Miyahara, Yoshiyasu Doi, Salahuddin Nur, Ryoichi Ishihara, Shintaro Sato (2023), Cryogenic Integration for Quantum Computer Using Diamond Color Center Spin Qubits, In Proceedings - IEEE 73rd Electronic Components and Technology Conference, ECTC 2023 p.967-972, Institute of Electrical and Electronics Engineers (IEEE).

R. Ishihara, S. Nur, Jaime Oscar Tenorio Pearl (2023), Persistent current switch.

Tetsuya Miyatake, Kenichi Kawaguchi, Manabu Ohtomo, Toshiki Iwai, Tetsuro Ishiguro, Yoshiyasu Doi, Jeffrel Hermias, Salahuddin Nur, Ryoichi Ishihara, Shintaro Sato (2023), Surface-activated direct bonding of diamond (100) and c-plane sapphire with high transparency for quantum applications, In Japanese Journal of Applied Physics Volume 62.

R. Ishihara, J. Hermias, S. Yu, K. Y. Yu, S. Nur, T. Iwai, T. Miyatake, K. Kawaguchi, Y. Doi, S. Sato, Y. LI (2021), 3D Integration Technology for Quantum Computer based on Diamond Spin Qubits, In 2021 IEEE International Electron Devices Meeting, IEDM 2021 p.14.5.1-14.5.4, Institute of Electrical and Electronics Engineers (IEEE).

Ye Li, Amir Mirza Gheytaghi, Miki Trifunovic, Yuanxing Xu, Guo Qi Zhang, Ryoichi Ishihara (2021), Wafer-level direct bonding of optimized superconducting NbN for 3D chip integration, In Physica C: Superconductivity and its Applications Volume 582.

T. Iwai, R. Ishihara (2020), Integration of single crystal diamond photonic crystal on silicon substrate for quantum computer, Hasselt Diamond Workshop 2020.

Y. Xu, F. K. Unseld, A. Corna, A. M.J. Zwerver, A. Sammak, D. Brousse, N. Samkharadze, S. V. Amitonov, M. Veldhorst, G. Scappucci, R. Ishihara, L. M.K. Vandersypen (2020), On-chip integration of Si/SiGe-based quantum dots and switched-capacitor circuits, In Applied Physics Letters Volume 117.

S. Hiraoka, K. Horibe, R. Ishihara, S. Oda, T. Kodera (2020), Physically defined silicon triple quantum dots charged with few electrons in metal-oxide-semiconductor structures, In Applied Physics Letters Volume 117.