By far the plainest, most bare-bones name for a guy in Japan is Taro. Look at just about any sample application form in the country, and nine times out of ten the applicant’s name will be listed as “Taro.” When coupled with a girl’s name like Hanako it’s the equivalent of “Dick and Jane,” showing up in children’s stories and textbooks.
Nonetheless,the name Taro is something of a classic, and a common choice for first-born sons. But change the first kanji character Taro is written with and you get “Jiro,” meaning more or less “second son.” Jiro doesn’t have quite the cachet of Taro, as it has a perpetual little brother-like ring to it.
Restaurant chain Ramen Jiro doesn’t play second fiddle to anyone, though, especially with creations like this.