title: 2020 Shimadzu All Japan Indoor Tennis Championships – Doubles
text: # 2020 Shimadzu All Japan Indoor Tennis Championships – Doubles
  
  Eri Hozumi and Moyuka Uchijima were the defending champions but chose to participate with different partners. Hozumi partnered Mana Ayukawa, but lost in the first round to Wu Fang-hsien and Zhang Ying.
  
  Uchijima played alongside Erina Hayashi and successfully defended the title, defeating Hsieh Yu-chieh and Minori Yonehara in the final, 7–5, 5–7, [10–6].
  
  ## Seeds
  
  * Haruka Kaji / Junri Namigata (semifinals)
  * Miyu Kato / Kyōka Okamura (quarterfinals)
  * Hsieh Yu-chieh / Minori Yonehara (final)
  * Mana Ayukawa / Eri Hozumi (first round)
  
  ## Draw
  
  ### Key
  
  * Q = Qualifier
  * WC = Wild card
  * LL = Lucky loser
  * Alt = Alternate
  * SE = Special exempt
  * PR = Protected ranking
  * ITF = ITF entry
  * JE = Junior exempt
  * w/o = Walkover
  * r = Retired
  * d = Defaulted
  * SR = Special ranking
  
  ### Draw
  
  | First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | H Kaji J Namigata | 6 | 6 | | | | | | | | | | | | | | | | |
  | WC | N Morimoto K Osafune | 2 | 1 | | 1 | H Kaji J Namigata | 6 | $7^7$ | | | | | | | | | | | |
  | | M Hontama H Kuwata | 3 | 2 | | | A Omae P Plipuech | 4 | $6^5$ | | | | | | | | | | | |
  | | A Omae P Plipuech | 6 | 6 | | | | | | | 1 | H Kaji J Namigata | 6 | 3 | [8] | | | | | |
  | 3 | Y-c Hsieh M Yonehara | 7 | 6 | | | | | | | 3 | Y-c Hsieh M Yonehara | 1 | 6 | [10] | | | | | |
  | | K-y Ng Ar Rodionova | 5 | 2 | | 3 | Y-c Hsieh M Yonehara | 4 | 6 | [11] | | | | | | | | | | |
  | | A Okuno F Xun | $6^6$ | 3 | | | M Kobori A Shimizu | 6 | 4 | [9] | | | | | | | | | | |
  | | M Kobori A Shimizu | $7^8$ | 6 | | | | | | | | | | | | 3 | Y-c Hsieh M Yonehara | 5 | 7 | [6] |
  | | I de Vroome Xin Wang | 6 | 6 | | | | | | | | | | | | | E Hayashi M Uchijima | 7 | 5 | [10] |
  | WC | M Imanishi R Kajitani | 2 | 2 | | | I de Vroome Xin Wang | | | | | | | | | | | | | |
  | | F-h Wu Yi Zhang | 6 | 6 | | | F-h Wu Yi Zhang | w/o | | | | | | | | | | | | |
  | 4 | M Ayukawa E Hozumi | 4 | 2 | | | | | | | | F-h Wu Yi Zhang | $6^4$ | 7 | [6] | | | | | |
  | | E Hayashi M Uchijima | 6 | 6 | | | | | | | | E Hayashi M Uchijima | $7^7$ | 5 | [10] | | | | | |
  | | H Arakawa J Kang | 0 | 3 | | | E Hayashi M Uchijima | 4 | 6 | [10] | | | | | | | | | | |
  | | E Bektas T Moore | $7^7$ | 4 | [2] | 2 | M Kato K Okamura | 6 | 0 | [6] | | | | | | | | | | |
  | 2 | M Kato K Okamura | $6^2$ | 6 | [10] | | | | | | | | | | | | | | | |
  