Top Inventors at Ckd 2021
| Rank | Name | Patents |
|---|---|---|
| 1 | Kazuyoshi Kikuchi | 4 |
| 2 | Norihiko Sakaida | 4 |
| 3 | Tsuyoshi Ohyama | 4 |
| #4 | Atsushi Fukuta | 3 |
| #5 | Hiroko Isayama | 3 |
| #6 | Hiroki Iwata | 3 |
| #7 | Takaharu Katou | 3 |
| #8 | Hiroyuki Ishigaki | 2 |
| #9 | Hideyuki Takeda | 2 |
| #10 | Hiroto Yasue | 2 |
| #11 | Keiichi Nishikawa | 2 |
| #12 | Tatsuhito Aoyama | 2 |
| #13 | Takahiro Mamiya | 2 |
| #14 | Takahiro Minatani | 2 |
| #15 | Tatsushi NABEI | 2 |
| #16 | Toshio Iwata | 2 |
| #17 | Yasuhisa Hirose | 2 |
| #18 | Yasunori Nishimura | 2 |
| #19 | Akihiro Ito | 1 |
| #20 | Akihiro Yamamoto | 1 |
| #21 | Fumihito Tsuchiya | 1 |
| #22 | Ikuo Futamura | 1 |
| #23 | Ikuo Ogino | 1 |
| #24 | Katsumi Ogawa | 1 |
| #25 | Kiyotoki Natsume | 1 |
| #26 | Kyomi Yamada | 1 |
| #27 | Masayuki Kouketsu | 1 |
| #28 | Manabu Okuda | 1 |
| #29 | Michio Miyashita | 1 |
| #30 | Naohiko Noda | 1 |
| #31 | Naoyuki Oba | 1 |
| #32 | Naofumi Yoshida | 1 |
| #33 | Nobuyuki Umemura | 1 |
| #34 | Ryo Eguchi | 1 |
| #35 | Shinjiro Hariyama | 1 |
| #36 | Shinji Ishikawa | 1 |
| #37 | Shunji Maruyama | 1 |
| #38 | Tadashi Inoguchi | 1 |
| #39 | Takemoto Kondo | 1 |
| #40 | Takaharu Matsuura | 1 |
| #41 | Takamasa Ohtani | 1 |
| #42 | Yasushi Ohshima | 1 |
| #43 | Yoshinori Tanaka | 1 |
| #44 | Yuki Sakaki | 1 |
| #45 | Yukihiro Taguchi | 1 |