Touhoku kougyou kensetsu ni kansuru kenkyuu

Moratoriumu ni kansuru kenkyuu

Gin ni kansuru kenkyuu

Kin ni kansuru kenkyuu

Gunjihi ni kansuru kenkyuu

Tennentou ni kansuru kenkyuu

Kougyou ni kansuru shisetsu kougai : fu kougyou kankei houki

Kougyou seinen kyouiku ni kansuru kenkyuu

Denki tousei ni kansuru kenkyuu

Sanso kougyou ni kansuru chousa

Gomu kougyou ni kansuru chousa

Tokushu kankyouka no kensetsu sagyou ni kansuru kenkyuu : sagyousha no seitai futan ni kansuru chousa kenkyuu

Keihi ni kansuru kenkyuu

Kikai kougyou ni kansuru toukeihyou

Kikai kougyou ni kansuru toukeihyou

Kokutei shuushinsho ni kansuru kenkyuu

Kougyoujou no shiken kenkyuu ni kansuru sankou shiryou

Inasaku no houkyou ni kansuru kenkyuu

Densenbyou ni okeru meneki ni kansuru kenkyuu

Touhoku nougyou no kenkyuu

Sekiyu sekitan gasu ni kansuru kenkyuu

Roudou kumiai houan ni kansuru kenkyuu

Naibu kansa ni kansuru chousa kenkyuu

Gijutsu kensa ni kansuru chousa kenkyuu

Shina tsuuka mondai ni kansuru kenkyuu