1.　Dense Radial Growth of Silver Metal Leaves in a High Magnetic Field
I. Mogi, S. Okubo, and Y. Nakagawa
J. Phys. Soc. Jpn. 60 (1991) 3200-3202.

2.　Effect of High Magnetic Fields on Fractal Growth of Metal Leaves
S. Okubo, I. Mogi, Y. Nakagawa
in Pattern Formation in Complex Dissipative Systems, S. Kai ed. (World Scientific, Singapore, 1992) p.98-102

3.　Effect of High Magnetic Fields on Morphology in Electroless Deposition of Silver
I. Mogi, S. Okubo, Y. Nakagawa
n 2nd Int. Symp. on Electrochemical Processing of Tailored Materials, 1992 (The Electrochemical Society, INC., 1993) p.136-146.

4.　Effect of High Magnetic Fields on Fractal Growth of Lead Metal-leaves
I. Mogi, S. Okubo, and Y. Nakagawa
J. Cryst. Growth 128 (1993) 258-261.

5.　Pattern Formation of Electroless Deposition and Colloid Aggregation of Gold in High Magnetic Fields
I. Mogi, S. Okubo, G. Kido and Y. Nakagawa
Fractals 1 (1993) 475-479.

6.　Effect of High Magnetic Fields on Fractal Growth of Silver Metal-Forest
S. Okubo, I. Mogi, G. Kido and Y. Nakagawa
Fractals 1 (1993) 425-429.

7.　Pattern Formation of Electrodeposit of Zinc in Magnetic Fields
I. Mogi , M. Kamiko, S. Okubo, and G. Kido
Physica B, 201 (1994) 606-610.

8.　Magnetic Field Effects on Fractal Morphology in Electrochemical Deposition
I. Mogi , M. Kamiko, S. Okubo
hysica B, 211 (1995) 319-322.

9.　Pattern Formation in Electroless Deposition
I. Mogi and S. Okubo
Fractals 3 (1995) 371-375.

10.　Morphology tailoring of electrochemical deposits by strong magnetic fields
I. Mogi, S. Okubo and M. Kamiko
Crystal growth research, 3 (1997) 105-115.

11.　Submillimeter Wave ESR of Yb2Cu2O5
Y. Ikeuchi, H. Ohta, S. Okubo, M. Motokawa and N. Kitamura
J. Magn. Magn. Mater. 177-181 (1998) 765-766.

12.　Submillimeter wave ESR Measurements of Two Dimensional Organic Antiferromagnet β'-(BEDT-TTF)2ICl2
K. Akioka, H. Ohta, S. Okubo and K. Kanoda
J. Magn. Magn. Mater. 177-181 (1998) 746-747.

13.　ESR Measurements of Quasi-one-dimensional Ferromagnet Sr3CuPtO6 in Millimeter wave Region
T. Arioka, H. Ohta, S. Okubo, R. Kanno and N. Kitamura
J. Magn. Magn. Mater. 177-181 (1998) 653-654.

14.　High-Field Magnetization Measurement of (YxNd1-x)2BaNiO5
S. Okubo, M. Hayashi, H. Ohta, M. Motokawa, H. Kikuchi, H. Nagasawa and N. Kitamura
J. Magn. Magn. Mater. 177-181 (1998) 763-764.

15.　ESR Study of Mott-Hubbard Insulators YTiO3 and LaTiO3 in Submillimeter Wave Region
S. Okubo, S. Kimura, H. Ohta, M. Itoh
J. Magn. Magn. Mater. 177-181 (1998) 1373-1374.

16.　Fermi Surface Study of -(BEDT-TTF)2MHg(SCN)4 by Cyclotron Resonance Measurements
K. Akioka, H. Ohta, S. Kimura, S. Okubo, K. Kanoda and M. Motokawa
Physica B246-247 (1998) 311-314.

17.　Submillimeter wave ESR of Ttrianglular-Kagome antiferromagnet Cu9X2(cpa)6 (X=Cl, Br)
S. Okubo, M. Hayashi, S. Kimura, H. Ohta, M. Motokawa, H. Kikuchi and H. Nagasawa
Physica B 246-247 (1998) 553-556.

18.　High field AFMR measurement of Nd2BaNiO5 in submillimeter wave region
S. Okubo, H. Ohta, M. Hayashi, H. Kikuchi, M. Motokawa and H. Nagasawa
Physica B 246-247 (1998) 219-221.

19.　ESR Measurements of Quasi-one-dimensional Antiferromagnet Sr3CuPtO6 in Millimeter Wave Region
T. Arioka, H. Ohta, S. Okubo, R. Kanno and N. Kitamura
J. Magn. Magn. Mater. 177-181 (1998) 653-654.

20.　High field AFMR measurement of Bi2CuO4
H. Ohta, Y. Ikeuchi, S. Kimura, S. Okubo, H Nojiri, M. Motokawa, S. Hosoya, K. Yamada and Y. Endoh
Physica B 245-247 (1998) 557-560.

21.　High-frequency high-field ESR of quantum double spin chain systems KCuCl3and TlCuCl3
H. Tanaka, T. Takatsu, W. Shiramura, T. Kambe, H. Nojiri, T. Yamada, S. Okubo, H. Ohta and M. Motokawa
Physica B 246-247 (1998) 545-548.

22.　High Field ESR Measurement of CsCuCl3 Near the Commensurate-incommensurate Transition
S. Okubo, H. Ohta, T. Yamada, H. Nojiri, M. Motokawa, H. Tanaka
Proceedings of 4th Int. Symposium on Advanced Physical Fields: Quantum Phenomena in Advanced Materials at High Magnetic Fields, G. Kido ed. (Tsukuba, Japan, March 9-12, 1999) p. 231-233.

23.　Millimeter and Submillimeter wave ESR measurement of Ho2Cu2O5 aligned powder sample
S. Okubo, T. Goto, T. Tanaka, H. Ohta, I. Mogi, K. Watanabe and M. Motokawa
Proceedings of 4th Int. Symposium on Advanced Physical Fields: Quantum Phenomena in Advanced Materials at High Magnetic Fields, G. Kido ed. (Tsukuba, Japan, March 9-12, 1999) p. 251-254.

24.　Temperature Dependence ESR Measurements of Cu2(1,4-diazacycloheptane)2Cl4 in the Millimeter Wave Region
H. Ohta, S. Okubo, T. Tanaka, H. Kikuchi and H. Nagasawa
Proceedings of 4th Int. Symposium on Advanced Physical Fields: Quantum Phenomena in Advanced Materials at High Magnetic Fields, G. Kido ed. (Tsukuba, Japan, March 9-12, 1999) p. 223-226.

25.　ESR Study of an S=1 Quasi One Dimensional Antiferromagnet Ni(232-tet)(μ-N3)(ClO4) in Submillimeter wave Region
S. Kimura, S. Okubo, H. Ohta, S. Hayashi, H. Kikuchi and H. Nagasawa
Proceedings of 4th Int. Symposium on Advanced Physical Fields: Quantum Phenomena in Advanced Materials at High Magnetic Fields, G. Kido ed. (Tsukuba, Japan, March 9-12, 1999) p.267-269.

26.　Auger electron spectroscopy of super-doped Si:Mn thin films
S. Abe, Y. Nakashima, S. Okubo, H. Nakayama, T. Nishino, H. Yanagi, H. Ohta, S. Iida
Appl. Surface Science 142 (1999) 537-542.

27.　Millimeter And Submillimeter Wave ESR System:Using 30T Pulsed Magnetic Field
N. Nakagawa, T. Yamada, K. Akioka, S. Okubo, S. Kimura, H. Ohta
Int. J. Infra. Mill. Waves 19 (1998) 167-176.

28.　High Field Phase Transitions of Quasi One-Dimensional S=1/2 Heisenberg Antiferromagnet Cu2(1,4-diazacycloheptane) 2Cl4 Observed by Submillimeter Wave ESR
H. Ohta, T. Tanaka, S. Okubo, S. Kimura, H. Kikuchi and H. Nagasawa
J. Phys. Soc. Jpn. 68 (1999) 732-735.

29.　Submillimeter Wave ESR Study of Magnetic Excitations in the Ising Ferromagnetic Chain CoNb2O6
T. Kunimoto, K. Nagasaka, H. Nojiri, S. Luther, M. Motokawa, H. Ohta, T. Goto, S. Okubo and K. Kohn
J. Phys. Soc. Jpn. 68 (1999) 1703-1710.

30.　Submillimeter Wave ESR of Aligned Powder Sample of Er2Cu2O5
H. Ohta, Y. Ikeuchi, S. Okubo, M. Motokawa, I. Mogi, K. Watanabe and N. Kitamura
in Proceedings of the Physical Phenomena at High Magnetic Fields-III, eds. Z. Fisk, L. Gor'kov and R. Schrieffer (World Scientific, Singapore, 1999) 457-460.

31.　High Field ESR Measurements of Cu2(dach)2Cl4 (dach=1, 4-diazacycloheptane)
H. Ohta, T. Tanaka, S. Okubo, H. Kikuchi and H. Nagasawa
in Proceedings of the Physical Phenomena at High Magnetic Fields-III, eds. Z. Fisk, L. Gor'kov and R. Schrieffer (World Scientific, Singapore, 1999) 461-464.

32.　ESR Measurements of One-Dimensional Random Quantum Spin System Sr3CuPtxIr1-xO6 in Millimeter Wave Region
T. Arioka, T. Tanaka, H. Ohta, S. Okubo, R. Kanno and N. Kitamura
in Proceedings of the Physical Phenomena at High Magnetic Fields-III, eds. Z. Fisk, L. Gor'kov and R. Schrieffer (World Scientific, Singapore, 1999) 433-436.

33.　High Field ESR Measurement of Heavily Doped Si:Mn
Y. Nakashima, H. Ohta, S. Okubo, T. Arioka, H. Nakayama and T. Nishino
in Proceedings of the Physical Phenomena at High Magnetic Fields-III, eds. Z. Fisk, L. Gor'kov and R. Schrieffer (World Scientific, Singapore, 1999) 92-95.

34.　Cyclotron resonance study of -(BEDT-TTF) 2I3
Y. Oshima, N. Nakagawa, K. Akioka, H. Ohta, S. Okubo, M. Tamura, Y. Nishio, K. Kajita
Synthetic Metals 103 (1999) 1919-1920.

35.　X-Band and millimeter wave ESR studies of (DI-DCNQI) 2Ag
N. Nakagawa, K. Akioka, H. Ohta, S. Okubo, K. Kanoda, K. Hiraki
Synthetic Metals 103 (1999) 1894-1895.

36.　ESR study of mott insulator -(BEDT-TTF) 2Cu[N(CN) 2]Cl
H. Ohta, N. Nakagawa, K. Akioka, Y. Nakashima, S. Okubo, K. Kanoda, N. Kitamura
Synthetic Metals 103 (1999) 1914-1915.

37.　Circularly polarized cyclotron resonance measurement system and its application to BEDT-TTF salts
H. Ohta, Y. Oshima, N. Nakagawa, K. Akioka, S. Okubo, K. Kanoda
Synthetic Metals 103 (1999) 1913.

38.　Submillimeter Wave ESR and High-Field Magnetization Measurements of Aligned Powder Sample of Nd2BaNiO5
S. Okubo, H. Ohta, M. Hayashi, T. Yamada, H. Nojiri, T. Sakon, M. Motokawa, I. Mogi, K. Watanabe, H. Kikuchi, H. Nagasawa and N. Kitamura
phys. stat. sol. (b) 215 (1999) 1099-1107.

39.　Submillimeter Wave ESR Study of Spin Gap Excitations in CuGeO3
H. Nojiri, H. Ohta, S. Okubo, O. Fujita, J. Akimitsu and M. Motokawa
J. Phys. Soc. Jpn. 68 (1999) 3417-3423.