Top Inventors at Joel All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masaki Takiwaki | 3 |
| 2 | Misao Matsushige | 3 |
| 3 | Seketsu Fukuzawa | 3 |
| #4 | Makoto Satou | 2 |
| #5 | David A. Richard | 1 |
| #6 | Gary L. Samuelson | 1 |
| #7 | Hidetoshi Nishiyama | 1 |
| #8 | Hideyuki Takahashi | 1 |
| #9 | Kiyoshi Kawashima | 1 |
| #10 | Kozo Koiwa | 1 |
| #11 | Kozo Sato | 1 |
| #12 | Masayuki Inokuchi | 1 |
| #13 | Masahiko Kawakami | 1 |
| #14 | Masaki Morita | 1 |
| #15 | Minoru Inatsugu | 1 |
| #16 | Mitsuru Koizumi | 1 |
| #17 | Naoya Tanaka | 1 |
| #18 | Nari Tsutagawa | 1 |
| #19 | Noriaki Kurihara | 1 |
| #20 | Shin Saito | 1 |
| #21 | Shin Watanabe | 1 |
| #22 | Takashi Sato | 1 |
| #23 | Takaya Satoh | 1 |
| #24 | Takaomi Yokoyama | 1 |
| #25 | Toshikazu Honda | 1 |
| #26 | Yohei Daino | 1 |
| #27 | Yuhei Kaneko | 1 |
| #28 | Howard S. Hutchins | 1 |
| #29 | Akio Kimura | 1 |
| #30 | Albert P. Zens | 1 |