Top Inventors at Epoch Company All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Ryo Sakai | 54 |
| 2 | Hiroshi Ukisu | 29 |
| 3 | Kei Kamiyama | 20 |
| #4 | Daisuke Matsuyama | 13 |
| #5 | Masahiro Kasahara | 8 |
| #6 | Momoko Susuki | 7 |
| #7 | Sachiko Naito | 7 |
| #8 | Daisuke Hattori | 6 |
| #9 | Teruo Matsumoto | 5 |
| #10 | Ai Nakanishi | 5 |
| #11 | Chihiro Tsuchiya | 3 |
| #12 | Eriko Kawashima | 3 |
| #13 | Tomomi Sano | 3 |
| #14 | Eriko Ishii | 2 |
| #15 | Hiroshi Hara | 2 |
| #16 | Maiko Yokoyama | 2 |
| #17 | Nozomu Furuta | 2 |
| #18 | Sachiko Tamura | 2 |
| #19 | Shiho Saegusa | 2 |
| #20 | Takashi Nanjo | 2 |
| #21 | Jin Sugiyama | 1 |
| #22 | Koichi Matsumoto | 1 |
| #23 | Koichi Nishino | 1 |
| #24 | Koichiro Yano | 1 |
| #25 | Mio Takakuta | 1 |
| #26 | Naoya Suzuki | 1 |
| #27 | Nobuaki Kurita | 1 |
| #28 | Roger Hulks | 1 |
| #29 | Shiori Goto | 1 |
| #30 | Shigekazu Hoshino | 1 |
| #31 | Susumu IWASAKI | 1 |
| #32 | Tomio Negishi | 1 |
| #33 | Tomomi Takeda | 1 |
| #34 | Tsutomu Okada | 1 |
| #35 | Yoshihiko Takagishi | 1 |
| #36 | Yuriko Ono | 1 |
| #37 | Yukihiro Shindo | 1 |
| #38 | Osamu Shibutami | 1 |
| #39 | Eriko Morioka | 1 |
| #40 | Kazuyuki Takiya | 1 |
| #41 | Minoru Kurushima | 1 |
| #42 | Daiki Sugie | 1 |
| #43 | Mio Akitsu | 1 |
| #44 | Akio Esaka | 1 |