Top Inventors at Topura Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Shigeto Mori | 9 |
| 2 | Mayumi Matsuno | 6 |
| 3 | Naoki Horiuchi | 5 |
| #4 | Eiichi Nagoshi | 3 |
| #5 | Osami Iwasaki | 3 |
| #6 | Tetuya Akashi | 3 |
| #7 | Kouhei Miyamoto | 2 |
| #8 | Takeshi Suzuki | 2 |
| #9 | Yousuke Okamura | 2 |
| #10 | Fumio Nakada | 1 |
| #11 | Hajime Minagawa | 1 |
| #12 | Hikaru Furuta | 1 |
| #13 | Hiroshi Nakano | 1 |
| #14 | Hideyori Sakuragi | 1 |
| #15 | Hiroyuki Sata | 1 |
| #16 | Hideki Tamura | 1 |
| #17 | Katsuhisa Yamasaki | 1 |
| #18 | Keisuke Hibino | 1 |
| #19 | Kenshichiro Shima | 1 |
| #20 | Koji Yamaki | 1 |
| #21 | Kouichi Yaotani | 1 |
| #22 | Kuninori Matsumoto | 1 |
| #23 | Minoru Sugiyama | 1 |
| #24 | Minoru Yoshida | 1 |
| #25 | Naoki Yamamoto | 1 |
| #26 | Noriyoshi Kaneda | 1 |
| #27 | Seiya Hoshino | 1 |
| #28 | Seiji Kashiwada | 1 |
| #29 | Shinji Nakano | 1 |
| #30 | Shunji Tozawa | 1 |
| #31 | Takehiro Okuwaki | 1 |
| #32 | Takao Tanaka | 1 |
| #33 | Toshio Kazama | 1 |
| #34 | Youichi MATSUEDA | 1 |
| #35 | Yosuke Okamura | 1 |
| #36 | Yoshie Sato | 1 |
| #37 | Takeki Sawanishi | 1 |
| #38 | Akihide Umada | 1 |