Top Inventors at Yoshida Industry Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Yukitomo Yuhara | 34 |
| 2 | Yoshiharu Hatakeyama | 26 |
| 3 | Tatsuo Ishikawa | 8 |
| #4 | Kenzo Teshima | 7 |
| #5 | Takashi Sugiyama | 7 |
| #6 | Nobuhisa Watanabe | 5 |
| #7 | Hirotake Ogasawara | 4 |
| #8 | Mitsuo Ishiguro | 4 |
| #9 | Yuji Ideshita | 4 |
| #10 | Yuzo Yoshida | 4 |
| #11 | Kiyokazu Miyokawa | 3 |
| #12 | Michiaki Kumagai | 3 |
| #13 | Shinichi Kozuka | 3 |
| #14 | Takayuki Tokushita | 3 |
| #15 | Yuji Shioi | 3 |
| #16 | Mikihiro Kuramitsu | 2 |
| #17 | Sumio Okojima | 2 |
| #18 | Fumiyoshi Fujita | 1 |
| #19 | Hiroki Fukuoka | 1 |
| #20 | Hisao Iwamoto | 1 |
| #21 | Hideaki Katsumi | 1 |
| #22 | Hidezi Nakazawa | 1 |
| #23 | Ichiro Kizawa | 1 |
| #24 | Junichi Kabasawa | 1 |
| #25 | Masayuki Sekine | 1 |
| #26 | Masashi Yamada | 1 |
| #27 | Natsumi Yanagisawa | 1 |
| #28 | Shuji Nakazawa | 1 |
| #29 | Shogo Yamazaki | 1 |
| #30 | Susumu Kimura | 1 |
| #31 | Toshihiro Nasuno | 1 |
| #32 | Toshihiro Yoshida | 1 |
| #33 | Tokiyo Yuhara | 1 |
| #34 | Yasuo Arai | 1 |
| #35 | Yasuko Nakajima | 1 |
| #36 | Yosiro Kikuma | 1 |
| #37 | Yosio Sakamaki | 1 |
| #38 | Yoshio Sakamaki | 1 |
| #39 | Yoshihumi Sakurai | 1 |
| #40 | Yuzi Ideshita | 1 |
| #41 | Chihiro Kitoh | 1 |
| #42 | Yoshio Minosawa | 1 |
| #43 | Masayuki Suzumori | 1 |