[2][3] After working for several years under Tokyo-based attorney Shintaro Kumagai (熊谷 信太郎), Yoshimura returned to Osaka and co-founded the Star Law Office in 2005.

[5] He was a candidate in the Osaka 4th district and lost in a close race with LDP incumbent Yasuhide Nakayama, but picked up a seat through the JIP proportional representation list.

In October, Hashimoto announced that he would transform the Osaka Restoration Association into a national party with about a dozen Diet members who had broken away from the JIP.

[8] In the final tally, he won 596,045 votes versus 406,595 for runner-up Akira Yanagimoto, who was supported by Prime Minister Shinzo Abe and the LDP.

[11] At the beginning of his term, Yoshimura joined with the newly elected Osaka Prefecture governor Ichiro Matsui to establish a joint office for the purpose of promoting Osaka as a "vice capital" of Japan, such as by hosting government agencies currently based in Tokyo.

Aichi: Hideaki Ōmura Akita: Norihisa Satake Aomori: Sōichirō Miyashita Chiba: Toshihito Kumagai Ehime: Tokihiro Nakamura Fukui: Tatsuji Sugimoto Fukuoka: Seitaro Hattori Fukushima: Masao Uchibori Gifu: Hajime Furuta Gunma: Ichita Yamamoto Hiroshima: Hidehiko Yuzaki Hokkaidō: Naomichi Suzuki Hyōgo: Motohiko Saitō Ibaraki: Kazuhiko Ōigawa Ishikawa: Hiroshi Hase Iwate: Takuya Tasso Kagawa: Toyohito Ikeda Kagoshima: Kōichi Shiota Kanagawa: Yūji Kuroiwa Kōchi: Seiji Hamada Kumamoto: Takashi Kimura Kyoto: Takatoshi Nishiwaki Mie: Katsuyuki Ichimi Miyagi: Yoshihiro Murai Miyazaki: Shunji Kōno Nagano: Shuichi Abe Nagasaki: Kengo Oishi Nara: Makoto Yamashita Niigata: Hideyo Hanazumi Ōita: Kiichiro Satō Okayama: Ryuta Ibaragi Okinawa: Denny Tamaki Osaka: Hirofumi Yoshimura Saga: Yoshinori Yamaguchi Saitama: Motohiro Ōno Shiga: Taizō Mikazuki Shimane: Tatsuya Maruyama Shizuoka: Yasutomo Suzuki Tochigi: Tomikazu Fukuda Tokushima: Masazumi Gotoda Tokyo: Yuriko Koike Tottori: Shinji Hirai Toyama: Hachiro Nitta Wakayama: Shūhei Kishimoto Yamagata: Mieko Yoshimura Yamaguchi: Tsugumasa Muraoka Yamanashi: Kotaro Nagasaki