Top Inventors at Lead Chemical Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masao Mori | 9 |
| 2 | Haruo Saito | 5 |
| 3 | Seijiro Yama | 4 |
| #4 | Tamaki Horiuchi | 4 |
| #5 | Hideo Nemoto | 3 |
| #6 | Takayasu Matsuzawa | 3 |
| #7 | Atsushi Nishida | 2 |
| #8 | Eiichi Yoshii | 2 |
| #9 | Masao Hattori | 2 |
| #10 | Masako Nakagawa | 2 |
| #11 | Naoki Murai | 2 |
| #12 | Sunao Takeuchi | 2 |
| #13 | Chika Hasegawa | 1 |
| #14 | Daisuke Ichimatsu | 1 |
| #15 | Etsuko Minegishi | 1 |
| #16 | Hitomi Hashitani | 1 |
| #17 | Hideo Suda | 1 |
| #18 | Hidetsune Tamaoki | 1 |
| #19 | Hitomi Waki | 1 |
| #20 | Jun Mori | 1 |
| #21 | Kazuyoshi Uematsu | 1 |
| #22 | Kenji Toda | 1 |
| #23 | Makoto Takeuchi | 1 |
| #24 | Mineo Sato | 1 |
| #25 | Naoiki Yamamoto | 1 |
| #26 | Noriyasu Saito | 1 |
| #27 | Satoshi Takahashi | 1 |
| #28 | Seijirou Yama | 1 |
| #29 | Shingo Shimada | 1 |
| #30 | Tadashi Ishigaki | 1 |
| #31 | Takayuki Matsunaga | 1 |
| #32 | Tetsukazu Hamamoto | 1 |
| #33 | Yoshiaki Kudo | 1 |
| #34 | Yoshiaki Mori | 1 |
| #35 | Yuji Matsuya | 1 |
| #36 | Yu-ji Matsuya | 1 |
| #37 | Mihoko Fuwa | 1 |