AKB48 Members

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1st Generation (Original Team A)

- these members took part and made the Original Team A.

Members (21): Itano Tomomi · Usami Yuki · Urano Kazumi · Ooe Tomomi · Oshima Mai · Orii Ayumi · Kawasaki Nozomi · Kojima Haruna · Komatani Hitomi · Sato Yukari · Takahashi Minami · Tojima Hana · Nakanishi Rina · Narita Risa · Hirajima Natsumi · Hoshino Michiru · Maeda Atsuko · Masuyama Kayano · Minegishi Minami · Watanabe Shiho | Shinoda Mariko (joined the group on 2006/1/22)

Still part of AKB48 (7/21): Itano Tomomi · Kojima Haruna · Takahashi Minami · Hirajima Natsumi · Maeda Atsuko · Minegishi Minami · Shinoda Mariko

• Transfered to Old Team B (3): Urano Kazumi · Hirajima Natsumi · Watanabe Shiho
• Now on New Team A (4): Kojima Haruna · Takahashi Minami · Maeda Atsuko · Shinoda Mariko
• Now on New Team K (2): Itano Tomomi · Minegishi Minami
• Now on New Team B (1): Hirajima Natsumi
• Now on SDN48 (2): Urano Kazumi · Sato Yukari

- Now Graduated (14/21): Usami Yuki · Urano Kazumi · Ooe Tomomi · Oshima Mai · Orii Ayumi · Kawasaki Nozomi · Komatani Hitomi · Sato Yukari · Tojima Hana · Nakanishi Rina · Narita Risa · Hoshino Michiru · Masuyama Kayano · Watanabe Shiho

2nd Generation (Original Team K)

- these members took part and made the Original Team K.

Members (17): Akimoto Sayaka · Imai Yuu · Uemura Ayako · Umeda Ayaka · Oshima Yuko · Ohori Megumi · Oku Manami · Ono Erena · Kasai Tomomi · Kobayashi Kana · Sato Natsuki · Takada Ayana · Noro Kayo · Hayano Kaoru · Masuda Yuka · Matsubara Natsumi · Miyazawa Sae

Still part of AKB48 (10/17): Akimoto Sayaka · Umeda Ayaka · Oshima Yuko · Oku Manami · Kasai Tomomi · Kobayashi Kana · Sato Natsuki · Masuda Yuka · Matsubara Natsumi · Miyazawa Sae

• Now on New Team A (1): Matsubara Natsumi
• Now on New Team K (4): Akimoto Sayaka · Umeda Ayaka · Oshima Yuko · Miyazawa Sae
• Now on New Team B (5): Oku Manami · Kasai Tomomi · Kobayashi Kana · Sato Natsuki · Masuda Yuka
• Now on SDN48 (2): Ohori Megumi · Noro Kayo

- Now Graduated (7/17): Imai Yuu · Uemura Ayako · Ohori Megumi · Ono Erena · Hayano Kaoru · Takada Ayana · Noro Kayo

3rd Generation (Original Team B)

- these members took part of the Original Team B.

Members (13): Inoue Naru · Oota Aika · Kashiwagi Yuki · Katayama Haruka · Kikuchi Ayaka · Saotome Miki · Tanabe Miku · Nakagawa Haruka · Nakaya Sayaka · Noguchi Reina · Matsuoka Yuki · Yonezawa Rumi · Watanabe Mayu

Still part of AKB48 (8/13): Oota Aika · Kashiwagi Yuki · Katayama Haruka · Tanabe Miku · Nakagawa Haruka · Nakaya Sayaka · Yonezawa Rumi · Watanabe Mayu

• Now on New Team A (4): Oota Aika · Katayama Haruka · Nakagawa Haruka · Nakaya Sayaka
• Now on New Team K (2): Tanabe Miku · Yonezawa Rumi
• Now on New Team B (2): Kashiwagi Yuki · Watanabe Mayu

- Now Graduated (5/13): Inoue Naru · Saotome Miki · Noguchi Reina · Matsuoka Yuki · Kikuchi Ayaka*

4th Generation (Kenkyusei Members)

Members (17) (bolded members were promoted (9)): Iinuma Yurina · Uriya Akane · Oya Shizuka · Kaneko Satomi · Kuramochi Asuka · Kozuka Rina · Saeki Mika · Sato Amina · Suzuki Nae · Deguchi Aki · Nakanishi Yuka · Nakata Chisato · Naruse Rina · Fujie Reina · Fujimoto Sara · Muranaka Satomi · Yoshioka Saki

• Promoted to Old Team A (4): Sato Amina · Nakata Chisato · Fujie Reina
• Promoted to Old Team K (2): Kuramochi Asuka · Naruse Rina
• Promoted to Old Team B (1): Saeki Mika

• Transfered to SKE48 (2): Nakanishi Yuka · Deguchi Aki

• Now on New Team A (3): Oya Shizuka · Kuramochi Asuka · Nakata Chisato
• Now on New Team K (1): Fujie Reina
• Now on New Team B (1): Sato Amina

- Promoted and still part of AKB48/SKE48 (7/9): Oya Shizuka · Kuramochi Asuka · Sato Amina · Degchi Aki · Nakanishi Yuka · Nakata Chisato · Fujie Reina
- After Promoted, Now Graduated (2/9): Saeki Mika · Naruse Rina

- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (8/17): Iinuma Yurina · Uriya Akane · Kaneko Satomi · Kozuka Rina · Suzuki Nae · Fujimoto Sara · Muranaka Satomi · Yoshioka Saki

5th Generation (Kenkyusei Members)

Members (13) (bolded members were promoted (9)): Arima Yuka · Ishida Haruka · Uchida Mayumi · Chikano Rina · Kitahara Rie · Kohara Haruka · Sashihara Rino · Tomita Mayu · Nakatsuka Tomomi · Nito Moeno · Hatayama Arisa · Miyazaki Miho · Yamada Mizuki

• Promoted to Old Team A (2): Kitahara Rie · Miyazaki Miho
• Promoted to Old Team K (1): Chikano Rina
• Promoted to Old Team B (4): Kohara Haruka · Sashihara Rino · Nakatsuka Tomomi · Nito Moeno

• Now on New Team A (3): Oya Shizuka · Kuramochi Asuka · Nakata Chisato
• Now on New Team K (2): Uchida Mayumi · Nakatsuka Tomomi
• Now on New Team B (4): Ishida Haruka · Chikano Rina · Kitahara Rie · Miyazaki Miho
• Now on SDN48 (1): Kohara Haruka

- Promoted and still part of AKB48 (8/9): Ishida Haruka · Uchida Mayumi · Chikano Rina · Kitahara Rie · Sashihara Rino · Nakatsuka Tomomi · Nito Moeno · Miyazaki Miho
- After Promoted, Now Graduated (1/9): Kohara Haruka

- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (4/13): Arima Yuka · Tomita Mayu · Hatayama Arisa · Yamada Mizuki

6th Generation (Kenkyusei Members)

Members (4) (bolded members were promoted (2)): Katano Yurie · Takajyo Aki · Nishizawa Sara · Nonaka Misato

• Promoted to Old Team A (1): Takajyo Aki

• Now on New Team A (1): Takajyo Aki
• Now on New Team K (1): Nonaka Misato

- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (2/4): Katano Yurie · Nishizawa Sara

7th Generation (Kenkyusei Members)

Members (11) (bolded members were promoted (7)): Ishiguro Remi · Iwasa Misaki · Katono Mizuho · Kikuchi Ayaka · Komori Mika · Sato Sumire · Suzuki Shihori · Suzuki Mariya · Hayashi Ayano · Maeda Ami · Matsui Sakiko

• Promoted to New Team A (2): Iwasa Misaki · Maeda Ami
• Promoted to New Team K (2): Kikuchi Ayaka · Matsui Sakiko
• Promoted to New Team B (3): Komori Mika · Sato Sumire · Suzuki Mariya

- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (3/11): Ishiguro Remi · Suzuki Shihori · Hayashi Ayano

8th Generation (Kenkyusei Members)

Members (15): Asai Madoka · Ishii Ayaka · Ishibe Aya · Imai Yurie · Ueki Asaka · Kaku Grace · Komizu Nanami · Sakamoto Rio · Sono Yurio · Sugiyama Miku · Tomite Ami · Nishikawa Nanami · Miki Nikoru · Muranaka Satomi

- Still part of Team Kenkyusei (1/15): Sono Yurio
- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (14/15): Asai Madoka · Ishii Ayaka · Ishibe Aya · Imai Yurie · Ueki Asaka · Kaku Grace · Komizu Nanami · Sakamoto Rio · Sugiyama Miku · Tomite Ami · Nishikawa Nanami · Miki Nikoru · Muranaka Satomi

9th Generation (Kenkyusei Members)

Members (14): Ishiguro Atsuki · Ito Ayaka* · Oba Mina* · Kinumoto Momomko · Shimazaki Haruka* · Takamatsu Eri · Takeuchi Miyu* · Nagao Mariya* · Nakamura Mariko* · Fujimoto Sara · Mori Anna* · Yamauchi Suzuran* · Yokoyama Yui*

- Still part of Team Kenkyusei (9/14): Ito Ayaka · Oba Mina · Shimazaki Haruka · Takeuchi Miyu · Nagao Mariya · Nakamura Mariko · Mori Anna · Yamauchi Suzuran · Yokoyama Yui
- Now not part of the group (Demoted Kenkyusei Members (AKB48)) (3/14): Ishiguro Atsuki · Takamatsu Eri · Fujimoto Sara

10th Generation (Kenkyusei Members)

Members (10): Abe Maria · Izuda Rina · Ichikawa Miori · Iriyama Anna · Iwasaki Hitomi · Katou Rena · Kanazawa Yuki · Kobayashi Marina · Nakamata Shiori · Fujida Nana

- All the 10th gen members are still part of Team Kenkyusei.