Top Inventors at Yahoo Japan 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Ikuo Kitagishi | 2 |
| 2 | Iztok Savnik | 2 |
| 3 | Kiyoshi Nitta | 2 |
| #4 | Bungo Tamari | 1 |
| #5 | Chikara Hashimoto | 1 |
| #6 | Kazuki NAKAYAMA | 1 |
| #7 | Kota TSUBOUCHI | 1 |
| #8 | Manabu Sassano | 1 |
| #9 | Motoi OMACHI | 1 |
| #10 | Ryotaro Takeda | 1 |
| #11 | Shintaro Nakajima | 1 |
| #12 | Shuuji Yamaguchi | 1 |
| #13 | Takanori Hirohashi | 1 |
| #14 | Takuya Nomura | 1 |
| #15 | Taro Watanabe | 1 |
| #16 | Yugo Matsuda | 1 |
| #17 | Yukihiro TAGAMI | 1 |
| #18 | Yuki Taguchi | 1 |
| #19 | Takashi Okuni | 1 |