2020 Shimadzu All Japan Indoor Tennis Championships – Doubles
# 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] | | | | | | | | | | | | | | | |
