Which writer illustrated a Japanese Manga Series which spent 18 weeks at the top of the New York Times Manga Best Sellers list of 2009?
Masashi Kishimoto
Title: The Prince of Tennis
Passage: The Prince Of Tennis (Japanese: テニスの王子様 , Hepburn: Tenisu no Ōjisama ) is a Japanese manga series about a tennis prodigy written and illustrated by Takeshi Konomi.  The title is often shortened to Tenni-Pri (テニプリ ) , a portmanteau of the words "Tennis Prince".  The manga was first published in Japan in Shueisha's "Weekly Shōnen Jump" in July 1999, and ended publication on March 3, 2008.  A total of 379 chapters were serialized, spanning 42 volumes.  As of volume 40, the manga has sold over 40 million copies in Japan.  News that a sequel to the manga series was going to be developed was announced in the December issue of the Japanese manga magazine "Jump Square".  The new manga series, entitled "New Prince of Tennis", began serialization in the "Jump Square" magazine on March 4, 2009, with the story taking place several months after the end of the original manga.  Viz Media acquired the license to distribute the series in English in North America.
Title: The New York Times Manga Best Sellers of 2009
Passage: The first year of the Best Seller list saw 55 manga titles and one light novel title make their appearances.  Of these, eight titles reached the top of the weekly list (in order of number of weeks at the top of the list, from highest to lowest): "Naruto", 18 weeks; "Bleach", 9 weeks; "Vampire Knight", 7 weeks; "Fruits Basket", 4 weeks; "Negima! ", 3 weeks; "Chibi Vampire", 1 week; "Fullmetal Alchemist", 1 week; and "Warriors: Ravenpaw's Path", 1 week.  "Naruto" and "Warriors: Ravenpaw's Path" were the only two titles to reach the top rank on the week of their debut.
Title: Naruto
Passage: Naruto (ナルト ) is a Japanese manga series written and illustrated by Masashi Kishimoto.  It tells the story of Naruto Uzumaki, an adolescent ninja who searches for recognition and dreams of becoming the Hokage, the leader of his village.  The story is in two parts, the first set in Naruto's pre-teen years, and the second in his teens.  The series is based on two one-shot manga by Kishimoto: "Karakuri" (1995), which earned Kishimoto an honorable mention in Shueisha's monthly "Hop Step Award" the following year, and "Naruto" (1997).
Naruto The New York Times Manga Best Sellers of 2009