Top Inventors at Katagiri Engineering Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroyuki Kano | 5 |
| 2 | Masaru Hori | 5 |
| 3 | Shoji Den | 5 |
| #4 | Koji Yamakawa | 3 |
| #5 | Hiroshi Amano | 2 |
| #6 | Masanu Hori | 1 |
| #7 | Masafumi Ito | 1 |
| #8 | Nobuo Ishii | 1 |
| #9 | Seigo Takashima | 1 |
| #10 | Takayuki Ohta | 1 |
| #11 | Toshio Goto | 1 |