Top Inventors at Sanko Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Hisatoshi Yamauchi | 6 |
| 2 | Shigeru Oda | 3 |
| 3 | Yoshito Nakagawa | 3 |
| #4 | Akihiko Yoshizato | 3 |
| #5 | Daishiro Kishimoto | 2 |
| #6 | Kazuhiko Miyata | 2 |
| #7 | Naoki Komiya | 2 |
| #8 | Ryoichi Kinishi | 2 |
| #9 | Yoshimi Ishibashi | 2 |
| #10 | Akira Inoue | 2 |
| #11 | Eiji Kawabata | 1 |
| #12 | Hideo Ishizu | 1 |
| #13 | Hiroaki Matsubara | 1 |
| #14 | Hitoshi Mouri | 1 |
| #15 | Hidetsugu Nakai | 1 |
| #16 | Hiroshi Sumitomo | 1 |
| #17 | Hiroyuki Tano | 1 |
| #18 | Histatoshi Yamauchi | 1 |
| #19 | Isami Katsumoto | 1 |
| #20 | Juji Uchida | 1 |
| #21 | Katsunori Makino | 1 |
| #22 | Katsuya Okumura | 1 |
| #23 | Koichiro Shioaki | 1 |
| #24 | Kunihiko Iwahara | 1 |
| #25 | Masayuki Iwata | 1 |
| #26 | Masaru Kagawa | 1 |
| #27 | Masayuki Okazaki | 1 |
| #28 | Masayuki Suzuki | 1 |
| #29 | Masayoshi Kakutani | 1 |
| #30 | Noriaki Hayashi | 1 |
| #31 | Rumi Tsuchiya | 1 |
| #32 | Shuya Akahane | 1 |
| #33 | Takao Iwata | 1 |
| #34 | Takahiko Mitani | 1 |
| #35 | Takaaki Mori | 1 |
| #36 | Takashi Owashi | 1 |
| #37 | Teruhiko Inoue | 1 |
| #38 | Tetsushi Katsube | 1 |
| #39 | Tjangkie Tan | 1 |
| #40 | Tjang Kie Tan | 1 |
| #41 | Tomio Kimura | 1 |
| #42 | Toru Makino | 1 |
| #43 | Tsutomu Hotta | 1 |
| #44 | Yoshimi Fujihara | 1 |
| #45 | Yoichi Umeki | 1 |