Tokushu tsuushin kougaku : suichuu tsuushin narabini hikari tsuushin

Tokushu denki tsuushin

Saishin kougaku bunken tekiroku tsuushin

Saishin kougaku bunken tekiroku tsuushin

Saishin kougaku bunken tekiroku tsuushin

Saishin kougaku bunken tekiroku tsuushin

Saishin kougaku bunken tekiroku tsuushin

Saishin kougaku bunken tekiroku tsuushin

Eigoka chuutou kougiroku : tsuushin kougaku

Eigoka chuutou kougiroku : tsuushin kougaku

Eigoka chuutou kougiroku : tsuushin kougaku

Eigoka chuutou kougiroku : tsuushin kougaku

Eigoka chuutou kougiroku : tsuushin kougaku

Shinrin shokubutsu shokuyou narabini tokushu youto chousasho

Saishin kagoshima kensei narabini kyoudoshi tokushu shiryou

Dentou shoumei narabini dennetsu kougaku

Choukyori kohīrento hikari faiba tsuushin no kenkyuu

3jigen ketsuzou kougaku ni motozuku hikari kiroku to hikari bisai kakou ni kansuru kenkyuu

Choukousoku hikari tsuushin nettowāku ni okeru shingou seigyo gijutsu no kenkyuu

Denryoku keitouyou hikari faiba ni yoru tsuushin shisutemu ni kansuru kenkyuu

Seifu shisei houshin narabini tokushu gaisha jigyou houshin

Hikari faibachuu no hisenkei kougaku kouka ni motozuku choukousoku hikari densou shori gijutsu no kenkyuu

Choukousoku hikari shingou shoriyou douhagata hisenkei kougaku debaisu ni kansuru kenkyuu

Seni kinzoku sankabutsu ni okeru hikari yuuki kato kougaku genshou

Ekishou kinou debaisu to sono hikari tsuushin e no ouyou ni kansuru kenkyuu