Hikari o kiku

Hikari o abite

Hikari o shitaite

Hikari o tazunete

Hikari o shitaitsutsu : kashuu

Serafuita : hikari o yobu onna

Kokoro no hikari o motomete

Seikiji ni hikari o hanatsu

Michi o kiku (Object); Imayo kiku zoroi (Series)

Shirase o kiku (Object); Imayo kiku zoroi (Series)

Kiku hitotsu

Denryoku mondai o yoron ni kiku

Kougai kyougo o hogosha ni kiku

Hikari ni somuku

Ekishou kuukan hikari henchouki o mochiita horoguramugata hikari suitchi ni kansuru kenkyuu

Hikari dentatsu kansuu gyouretsu o mochiita hikari kairo gouseiron ni kansuru kenkyuu

Porimā zairyou o mochiita hikari LANyou maruchimōdo hikari bunki soshi ni kansuru kenkyuu

Handoutai hikari zoufukuki o mochiita koukinou rēza

Barukugata hikari jikai sensa o mochiita kichuu zetsuen hikari henryuuki ni kansuru kenkyuu

Yami ni kagayaku hikari

Juugo haikyuusha to shouhisha no koe o kiku

Nukada susumu shi ni kagakuteki jinseikan o kiku

Hikari outou handoutai funmatsu no chousei oyobi kakushu hikari outou handoutai o riyou shita hikari shokubai hannou no kenkyuu

Denen ni kagayaku hikari

Tousou ni kagayaku hikari