My main account is ja:user:Penpen
My name is KOBAYASHI Takakazu.(KOBAYASHI is family name, Takakazu is surname and I have no middle name. This is Japanese order. It is a pitty that the en.wikipedia uses inverted order.)
I'm a Japanese male and I'm living in OSAKA. (Leagal romanization (ISO 3602) of Osaka is Ōsaka. Ō is a long vowel. But Japanese also use Osaka.)
Mainly I use ja.wikipedia. I'm a Japanese native speaker and I can speak English very little (sorry). My ja.wikipedia user ID is also Penpen.
My contribution in en.wikipedia is to translate ja.wikipedia articles.