Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kiyotaka Oyama | Toyo Soda Manufacturing Co. | 4 |
| 2 | Yukihiro Tsutsumi | Toyo Soda Manufacturing Co. | 3 |
| 2 | Tatsushi Nakagawa | Toyo Soda Manufacturing Co. | 3 |
| #4 | Kazuhiko Sekizawa | Tosoh | 2 |
| #4 | Katsuo Komiya | Tosoh | 2 |
| #4 | Yuji Nonaka | Toyo Soda Manufacturing Co. | 2 |
| #7 | Mamoru Narui | Toyo Soda Manufacturing Co. | 1 |
| #7 | Sadakatsu Kumoi | Toyo Soda Manufacturing Co. | 1 |
| #7 | Hideo Sakka | Tosoh | 1 |
| #7 | Masashige Kubo | Toyo Soda Manufacturing Co. | 1 |
| #7 | Takaaki Tsukidate | Toyo Soda Manufacturing Co. | 1 |
| #7 | Yasuhiro Sakanaka | Toyo Soda Manufacturing Co. | 1 |
| #7 | Kayoko Koseki | Mecta | 1 |
| #7 | Hideotoshi Wakamatsu | Toyo Soda Manufacturing Co. | 1 |
| #7 | Toru Seita | Toyo Soda Manufacturing Co. | 1 |
| #7 | Yasuhiro Kurauchi | Toyo Soda Manufacturing Co. | 1 |
| #7 | Ryuichi Kitayama | Tosoh | 1 |