Top Inventors at Kddi 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Keisuke Takemori | 9 |
| 2 | Ayumu Kubota | 7 |
| 3 | Seiichiro Mizoguchi | 7 |
| #4 | Hideaki KAWABATA | 6 |
| #5 | Masahiro Suzuki | 3 |
| #6 | Tomoaki Ueda | 3 |
| #7 | Atsushi Miyamoto | 2 |
| #8 | Atsushi Tagami | 2 |
| #9 | Masato Andou | 2 |
| #10 | Eiji Yamada | 1 |
| #11 | Hailan PENG | 1 |
| #12 | Hirofumi Iizuka | 1 |
| #13 | Jun Kurihara | 1 |
| #14 | Kazuya MORIWAKI | 1 |
| #15 | Kazuaki Ueda | 1 |
| #16 | Keisuke Kuroki | 1 |
| #17 | Kenji Yokota | 1 |
| #18 | Masaharu Hattori | 1 |
| #19 | Masafumi Hirono | 1 |
| #20 | Michiaki Hayashi | 1 |
| #21 | Mitsumasa Iwanaga | 1 |
| #22 | Noriyuki HASHIMOTO | 1 |
| #23 | Satoshi Konishi | 1 |
| #24 | Sakiko Kurita | 1 |
| #25 | Takamasa Isohara | 1 |
| #26 | Takeo OHSEKI | 1 |
| #27 | Takashi Saitou | 1 |
| #28 | Teruaki Honma | 1 |
| #29 | Toshiharu Horiuchi | 1 |
| #30 | Tomoaki Matsuki | 1 |
| #31 | Toshiyuki Okamoto | 1 |
| #32 | Toshiaki Yamamoto | 1 |
| #33 | Yasuaki Kobayashi | 1 |
| #34 | Yasuhiro Suegara | 1 |
| #35 | Yoshitsugu Hashimoto | 1 |
| #36 | Yuuichirou Ishitani | 1 |