Top Inventors at Kyoraku Co. 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Masaaki Onodera | 4 |
| 2 | Takeru Sano | 4 |
| 3 | Yoshinori Ono | 3 |
| #4 | Yu Igarashi | 3 |
| #5 | Ryosuke Oki | 2 |
| #6 | Ryohei YUASA | 2 |
| #7 | Shinsuke TARUNO | 2 |
| #8 | Takashi Nomura | 2 |
| #9 | Takaaki SOMEYA | 2 |
| #10 | Teruo Tamada | 2 |
| #11 | Akihiko Watanabe | 1 |
| #12 | Daisuke Yamazaki | 1 |
| #13 | Kazuhiko Saeki | 1 |
| #14 | Kenji Ishii | 1 |
| #15 | Kengo Shimada | 1 |
| #16 | Kouichiro YOSHIDA | 1 |
| #17 | Naoki Ueda | 1 |
| #18 | Ryuichi Ishida | 1 |
| #19 | Seiji Ono | 1 |
| #20 | Shinji Ishikawa | 1 |
| #21 | Shuji Ito | 1 |
| #22 | Sho Nakajima | 1 |
| #23 | Tatsuya Fukuda | 1 |
| #24 | Takafumi Funato | 1 |
| #25 | Takehiko Sumi | 1 |
| #26 | Tadatoshi Tanji | 1 |
| #27 | Tetsuaki EGUCHI | 1 |
| #28 | Teruhisa Hanafusa | 1 |
| #29 | Tomohiro Taniguchi | 1 |
| #30 | Tomohiro Yuhara | 1 |
| #31 | Tsutomu Sakaguchi | 1 |
| #32 | Yasunobu Ueda | 1 |
| #33 | Yoshinori Motohashi | 1 |
| #34 | Yosuke MUROYA | 1 |
| #35 | Yoshinori Ohno | 1 |
| #36 | Yoshihiro YAMASAKI | 1 |
| #37 | Yoshio Yamauchi | 1 |
| #38 | Yuki HARASAWA | 1 |
| #39 | Yusuke Hiraina | 1 |
| #40 | Yuta Minamigawa | 1 |