Top Inventors at Tosoh Quartz All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Masayuki Kudo | 3 |
| 2 | Chiemi ITO | 2 |
| 3 | Hiroya Nagata | 2 |
| #4 | Koji Tsukuma | 2 |
| #5 | Masakazu Kudoh | 2 |
| #6 | Mutsumi Asano | 2 |
| #7 | Shinkichi Hashimoto | 2 |
| #8 | Yoshinori Harada | 2 |
| #9 | Hideaki Kiriya | 1 |
| #10 | Hideki Kiyohara | 1 |
| #11 | Hideto Kuramochi | 1 |
| #12 | Hiroyuki Yokomizo | 1 |
| #13 | Kazuyoshi Arai | 1 |
| #14 | Katsufumi Takahashi | 1 |
| #15 | Minoru Kuniyoshi | 1 |
| #16 | Naoki Miura | 1 |
| #17 | Satoshi Kondo | 1 |
| #18 | Shuzo Mizutani | 1 |
| #19 | Shinichi Satoh | 1 |
| #20 | Shuji Takatoh | 1 |
| #21 | Takeshi MUTOU | 1 |
| #22 | Takaya Suzuki | 1 |
| #23 | Takashi Taniguchi | 1 |
| #24 | Tomoyuki Akiyama | 1 |
| #25 | Tsutomu Takahata | 1 |
| #26 | Yoshihiko Gotoh | 1 |
| #27 | Yoshikazu Kikuchi | 1 |
| #28 | Yuka Oba | 1 |
| #29 | Atsushi Ando | 1 |