Top Inventors at P & Pf Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Tetsuo Nishina | 12 |
| 2 | Yoshinobu Saito | 11 |
| 3 | Tomoko Toda | 7 |
| #4 | Takahiro Okuda | 6 |
| #5 | Uhei Tamura | 6 |
| #6 | Takahito Makita | 5 |
| #7 | Shogo Nagura | 3 |
| #8 | Daiji Nagahama | 2 |
| #9 | Nobuyuki Kishi | 2 |
| #10 | Kazuo Iwai | 1 |
| #11 | Katsuhito Kita | 1 |
| #12 | Masahito Tanaka | 1 |
| #13 | Natsue Hirano | 1 |
| #14 | Saori Kajita | 1 |
| #15 | Shinya Yamasaki | 1 |
| #16 | Shinya Yamazaki | 1 |
| #17 | Yumiko Takeda | 1 |