Doushi no ishisei ni tsuite : taigo nihongo no taishou kenkyuu o mezashite

Gendai nihongo ni okeru gaizensei o arawasu fukushi no kenkyuu

Doushi no imi kouzou o sasaeru imēji sukīma no kenkyuu

Suigan no rinshou byourigakuteki kenkyuu : tokuni yogo koujou o mezashite

Gendai chuugokugo no doushi kouzou no kenkyuu : go keisei to ku keisei no heikousei o chuushin ni

Nihongo no konponteki kenkyuu

Nihongo no konponteki kenkyuu

Nihongo no konponteki kenkyuu

Seiyoujin no nihongo kenkyuu

Meishirui zero anafora no kenkyuu : nihongo to supeingo no danwa no jisshoutekina kenkyuu

Nihongobun no shouou mondai kaiketsu shuhou ni tsuite no kenkyuu

Nihongo no shuujoshi 「 yo 」 「 ne 」 「 yone 」 ni tsuite : nihongo kyouiku no shiten kara

Kyoudo kenkyuu ni tsuite

Makurofāji no enkisei aminosan yusou ni tsuite no kenkyuu

Hikiatekin kaikei ni tsuite no kenkyuu

Gendai nihongo no ukemibun no kenkyuu : sono imi to kinou oyobi bungaku sakuhin ni okeru shiyou ni tsuite

Kanjiken ni okeru nihongo kyouiku no shiteki kenkyuu

Daichou gan kenshin no yuukousei ni kansuru shourei taishou kenkyuu

Shikaku shougaisha no tame no onrain nihongo nyuuryoku shisutemu ni kansuru kenkyuu

Shinrei kenkyuu kyoukai setsuritsu ni tsuite shuisho

Roshiyago zenchishi no kenkyuu

Ripoporisakkaraido ni yoru kidou kabinsei moderu ni tsuite no yakurigakuteki kenkyuu

Kankitsu ni okeru mukakusei hinshu no ikushu ni kansuru kenkyuu : shutoshite yuusei funensei o riyoushita mukakusei hinshu no ikusei ni tsuite

Ishi kyouiku no kenkyuu

Tenpe ni tsuite no shokuhin eiyougakuteki kenkyuu : tenpe no teimi seibun ni kansuru kenkyuu