76.　Magneto-optical measurements of β-(BEDT-TTF) 2AuI2
H. Ohta, Y. Oshima, Y. Inagaki, S. Okubo, M. Kimata, K. Koyama, M. Motokawa, T. Mori,
Synthetic Metals 135-136 (2003) 527-528.

77.　High field ESR measurements of charge transfer salts under high pressure
T. Sakurai, M. Saruhashi, Y. Inagaki, S. Okubo, H. Ohta, K. Hiraki, Y. Uwatoko
Synthetic Metals 135-136 (2003) 523-524.

78.　Submillimeter and millimeter wave ESR measurements of (DMET) 2FeBr4 below TN
S. Okubo, K. Kirita, Y. Inagaki, H. Ohta, K. Enomoto, A. Miyazaki, T. Enoki,
Synthetic Metals 135-136 (2003) 589-590..

79.　Temperature dependence millimter wave ESR measurements of Et2Me2P[Pd(dmit) 2] 2
T. Sakurai, H. Ohta, S. Okubo, R. Kato, T. Nakamura
Synthetic Metals 133-134 (2003) 421-422.

80.　Anomalous temperature dependence of the ESR linewidth in CuGeO3 doped with magnetic impurities and the universal relations in the Oshikawa-Affleck theory
S. V. Demishev, Y. Inagaki, H. Ohta, S. Okubo, Y. Oshima, A. A. Pronin, N. A. Samarin, A. V. Semeno and N. E. Sluchanko
Europhys. Lett. 63(3) (2003) 446-452.

81.　Submillimeter Wave ESR System Using Pulsed Magnetic Field and Its Applications to One Dimensional Antiferromagnetic System
H. Ohta, S. Okubo, K. Kawakami, D. Fukuoka, Y. Inagaki, T. Kunimoto and Z. Hiroi
J. Phys. Soc. Jpn. 72 (2003) Suppl. B 26-35.

82.　lectron Spin Resonance in Trangular Antiferromagnets
H. Tanaka, T. Ono, S. Maruyama, S. Teraoka, K. Nagata, H. Ohta, S. Okubo, S. Kimura, T. Kambe, H. Nojiri and M. Motokawa
J. Phys. Soc. Jpn. 72 (2003) Suppl. B 84-98.

83.　Field Induced Magnetic Ordering in CsFeBr3 Studied by High Field ESR
Y. Inagaki, S. Okubo, H. Ohta and H. Tanaka
J. Phys. Soc. Jpn. 72 (2003) Suppl. B 127-134.

84.　High Field ESR Measurements under Pressure
T. Sakurai, M. Saruhashi, T. Hirano, Y. Inagaki, S. Okubo, T. Kunimoto, H. Ohta, H. Tanaka and Y. Uwatoko
J. Phys. Soc. Jpn. 72 (2003) Suppl. B 156-161.

85.　Quantum critical behavior in CuGeO3
S. V. Demishev, Y. Inagaki, M. M. Markina, H. Ohta, S. Okubo, Y. Oshima, A. A. Pronin, N. E. Sluchanko, N. A. Samarin
Acta Phys. Pol. B 34(2) (2003) 729-732.

86.　High field ESR measurements of diamond chain substance Cu3(OH)2(CO3)2
T. Kamikawa, S. Okubo, T. Kunimoto, H. Ohta, Y. Inagaki, H. Kikuchi, T. Saito, M. Azuma, M. Takano,
Physica B 329-333 (2003) 988-989.

87.　High-field ESR measurements of quantum spin system under high pressure
M. Saruhashi, T. Sakurai, T. Hirano, H. Ohta, S. Okubo, Y. Inagaki, Y. Uwatoko
Physica B 329-333 (2003) 963-964.

88.　Quantum critical point in CuGeO3 doped with magnetic impurities
S. V. Demishev, Y. Inagaki, M. M. Markina, H. Ohta, S. Okubo, Y. Oshima, A. A. Pronin, N. E. Sluchanko, N. A. Samarin, V. V. Glushkov
Physica B 329-333 (2003) 715-716.

89.　High magnetic field ESR study of field induced antiferromagnetic ordering in CsFeBr3 at low temperature
S. Okubo, R. Koyama, Y. Inagaki, H. Ohta, H. Tanaka
Physica B 329-333 (2003) 1069-1070.

90.　ESR study of frustrated Δ-chain system
T. Kunimoto, T. Kamikawa, Y. Inagaki, S. Okubo, H. Ohta, H. Kikuchi, T. Saito, M. Azuma, M. Takano
Physica B 329-333 (2003) 1057-1058.

91.　High Field ESR Study of the S=1/2 Diamond-Chain Substance Cu3 (CO3) 2 (OH) 2 up to the Magnetization Plateau Region
H. Ohta, S. Okubo, T. Kamikawa, T. Kunimoto, Y. Inagaki, H. Kikuchi, T. Saito, M. Azuma, M. Takano
J. Phys. Soc. Jpn. 72 (2003) 2464-2467.

92.　Millimeter wave investigation of the antiferromagnetic phase in λ-(BETS) 2FeCl4 in high magnetic fields
I. Rutel, S. Okubo, J. Brooks, E. Jobiliong, H. Kobayashi, A. Kobayashi, and H. Tanaka
Polyhedron 22 (2003) 2009-2012.

93.　Magnetic properties of the fullerene organic compounds in strong magnetic fields
N. Spitsina, S. Demishev, H. Ohta, S. Okubo, Y. Oshima, L. Weckhuysen
J. Phys. Soc. Jpn. 71 (2002) 2640-2643.