by OKAMOTO HIROTAKA
Year of Publication 24.09.1987

by KONDO SHUJI, TSUZAKI TAKANOBU, KONDO MASAYA, HIRAOKA YUKIO, FUJII AKITA, ASAKURA HIROSHI, ASAZUMA TOMOHIRO, OKAMOTO HIROTAKA
Year of Publication 06.06.2013

by KURATA RYOICHI, NISHIMURA NOBUTAKA, SAWADA AKIRA, ENOHARA TAKAAKI, BABA KENJI, TAKAHASHI YUSUKE, SUZUKI YOSHIHIKO, OKAMOTO HIROTAKA
Year of Publication 06.06.2013

by KATO, MAKOTO, HAYASHIDA, KENICHI, OKAMOTO, HIROTAKA, NAGAI, TAKAYUKI, WATANABE, TOSHIO, WATANABE, OSAMU, TANAKA, HIROMITSU
Year of Publication 05.06.2013

by OKAMOTO, HIROTAKA, KONDOH, SYUUJI, KONDO, SHINYA, TSUZAKI, TAKANOBU, HIRAOKA, YUKIO, FUJI, AKIHIRO, ASAKURA, HIRAKU, ASAZURA, TOMOHIRO
Year of Publication 23.05.2013

by OKUYAMA, HISASHI, URUSHIHARA, TSUYOSHI, OKAMOTO, HIROTAKA, NAKANO, MITSURU, KAWAMOTO, NAOSHI, SAITO, HITOSHI, TOBITA, ETSUO, KANAMORI, TAKESHI
Year of Publication 22.05.2013

by KUWAJIMA HIDEKI, OKAMOTO HIROTAKA
Year of Publication 23.01.2001

by KATO, MAKOTO, HAYASHIDA, KENICHI, OKAMOTO, HIROTAKA, NAGAI, TAKAYUKI, WATANABE, TOSHIO, WATANABE, OSAMU, TANAKA, HIROMITSU
Year of Publication 10.04.2013

by KURAMOTO HIROSHI, OKAMOTO HIROTAKA
Year of Publication 11.07.2000

by KATO MAKOTO, WATANABE OSAMU, NAGAI TAKAYUKI, TANAKA HIROMITSU, WATANABE TOSHIO, OKAMOTO HIROTAKA, HAYASHIDA KENICHI
Year of Publication 06.12.2012

by OKAMOTO, HIROTAKA, KUWAJIMA, HIDEKI
Year of Publication 15.12.1999

by KUNO KOUKI, OKAMOTO HIROTAKA
Year of Publication 28.05.1999

by KUWAJIMA HIDEKI, OKAMOTO HIROTAKA
Year of Publication 22.12.1998

by OKAMOTO, HIROTAKA, KUWAJIMA, HIDEKI
Year of Publication 16.12.1998

by KOIKE MASARU,OKAMOTO HIROTAKA,MORITA KOJI,HIRAOKAKIYUKI
Year of Publication 11.10.2006

by Okamoto, Hirotaka, Katagiri, Yoshihide, Nakano, Mitsuru, Usuki, Arimitsu
Year of Publication 08.09.2009

by KATAGIRI YOSHIHIDE, NAKANO MITSURU, USUKI ARIMITSU, OKAMOTO HIROTAKA
Year of Publication 08.09.2009

by INOUE, Tadashi, OKAMOTO, Hirotaka, HAYASHIHARA, Hiroshi, OSAKI, Kunihiro
Published in Nihon Reoroji Gakkaishi (1991)

by OKAMOTO, HIROTAKA, KONDOH, SYUUJI, KONDO, SHINYA, TSUZAKI, TAKANOBU, HIRAOKA, YUKIO, FUJII, AKIHIRO, ASAKURA, HIRAKU, ASAZUMA, TOMOHIRO
Year of Publication 11.12.2017

by OKAMOTO, Hirotaka, HWANG, Eui Jeong, INOUE, Tadashi, OSAKI, Kunihiro
Published in Nihon Reoroji Gakkaishi (1993)