1. Friedel oscillations in a two-band Hubbard model for CuO chains
   M. Mori, T. Tohyama, S. Maekawa and J. A. Riera
   Phys. Rev. B 69, (2004) 014513 (1-7).

2. Temperature and dimensionality dependencies of optical absorption spectra in Mott insulators
   H. Onodera, T. Tohyama and S. Maekawa
   Phys. Rev. B 69, (2004) 245117 (1-5).

3. Dynamical density matrix renormalization group study of photoexcited states in one-dimensional Mott insulators
   H. Matsueda, T. Tohyama and S. Maekawa
   Phys. Rev. B 70, (2004) 033102 (1-4).

4. "Physics of Transition Metal Oxides" (ISBN: 3-540-21293-0)
   S. Maekawa, T. Tohyama, S.E. Barnes, S. Ishihara, W. Koshibae and G. Khaliullin
   Springer Series in Solid-State Sciences, Vol. 144 (2004).

5. Doping dependence of spectral function in hole- and electron-doped high-Tc cuprates
   T. Tohyama
   Physica C 412-414, (2004) pp. 139-142.

6. Doping dependence of resonant inelastic X-ray scattering in high-Tc cuprates
   K. Tsutsui, T. Tohyama and S. Maekawa
   Physica C 412-414, (2004) pp. 143-146.

7. Asymmetry of the electronic states in hole- and electron-doped cuprates: Exact diagonalization study of the t-t'-t''-J model
   T. Tohyama
   Phys. Rev. B 70, (2004) 174517 (1-12).

8. Excitonic effect on the optical response in the one-dimensional two-band Hubbard model
   H. Matsueda, T. Tohyama and S. Maekawa
   Phys. Rev. B 71, (2005) 153106 (1-4).

9. Mott Gap Excitations in Twin-Free YBa₂Cu₃O_7-d (T_c=93 K) Studied by Resonant Inelastic X-Ray Scattering
   K. Ishii, K. Tsutsui, Y. Endoh, T. Tohyama, K. Kuzushita, T. Inami, K. Ohwada, S. Maekawa, T. Masui, S. Tajima, Y. Murakami and J. Mizuki
   Phys. Rev. Lett. 94, (2005) 187002 (1-4).

10. Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd_1.85Ce_0.15CuO₄: A Resonant Inelastic X-Ray Scattering Study
    K. Ishii, K. Tsutsui, Y. Endoh, T. Tohyama, S. Maekawa, M. Hoesch, K. Kuzushita, M. Tsubota, T. Inami, J. Mizuki, Y. Murakami and K. Yamada
    Phys. Rev. Lett. 94, (2005) 207003 (1-4).

11. Theoretical study of angle-resolved two-photon photoemission in two-dimensional insulating cuprates
    H. Onodera, T. Tohyama, K. Tsutsui and S. Maekawa
    Phys. Rev. B 72, (2005) 012508 (1-4).

12. Exact diagonalization study of optical conductivity in the two-dimensional Hubbard model
    T. Tohyama, Y. Inoue, K. Tsutsui and S. Maekawa
    Phys. Rev. B 72, (2005) 045113 (1-5).

13. Numerical study of the electronic states in hole- and electron-doped high-Tc cuprates
    T. Tohyama
    Inter. J. Mod. Phys. B 19, (2005) pp. 115-117.

14. Temperature dependence of spinon and holon excitations in one-dimensional Mott insulators
    H. Matsueda, N. Bulut, T. Tohyama and S. Maekawa
    Phys. Rev. B 72, (2005) 075136(1-7).

15. Theory of RIXS in strongly correlated electron systems: Mott gap excitations in cuprates
    T. Tohyama, K. Tsutsui and S. Maekawa
    J. Phys. Chem. Solids 66, (2005) pp. 2139-2144.

16. Dispersion relation of charge gap excitations in quasi-1D Mott insulators studied by resonant X-ray scattering
    D. Qian, Yinwan Li, M.Z. Hasan, D.M. Casa, T. Gog, Y.-D. Chuang, K. Tsutsui, T. Tohyama, S. Maekawa, H. Eisaki and S. Uchida
    J. Phys. Chem. Solids 66, (2005) pp. 2212-2215.