Nihon teikoku no sekiyu jigyou : fu sekiyu koudoubori ni kansuru shokan

Nihon sekiyu kabushiki gaisha jigyou youran : fu sekiyugyou ippan

Sekiyu senbai ni kansuru kenkyuu

Sekiyu haikyuu ni kansuru sanso no futou shinshutsu

Senji sekiyu zousan ni kansuru kenpakusho

Sekiyu sekitan gasu ni kansuru kenkyuu

Sekiyu jigyou no konponteki kakushin

Sekiyu jigyou no konponteki kakushin

Kitakarafuto sekiyu riken ni kansuru shiryou

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku

Dai nihon teikoku kenpou no kaishaku ni kansuru kenkai

Kokunai sekiyu shigen kaihatsu ni kansuru yo no shin oukyuu taisaku

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku kengi

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku yosan

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku kengi

Torihikijo ni kansuru hanreishuu : fu torihikijo hourei no enkaku

Sekiyu gasu choryuu tansanenganchuu no muki biryou seibun ni kansuru kenkyuu

Sekiyu seisei puranto no kenzensei hyouka to zairyou rekka ni kansuru kenkyuu

Jusan jigyou ni kansuru chousa

Wagakuni no shinsai ni taisuru shogaikoku no doujou to shinsai ni kansuru shomeishi no shokan

Okiai youjou sekiyu bichiku kichi no bouhatei ni kansuru jiban kougakuteki kenkyuu

Kokutai ni kansuru kunji : fu hijouji no igi

Dainihon teikoku kenpou no kaishaku ni kansuru kenkai

Dainihon teikoku kenpou no kaishaku ni kansuru kenkai

Nihon no kokumin ni kansuru kousatsu nihon no kokutai ni kansuru kannen