Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akira Yamagiwa | Hitachi | 57 |
| 2 | Takashi Kawana | Nippon Soda Co. | 10 |
| 3 | Renpei Hatano | Nippon Soda Co. | 9 |
| #4 | Isamu Kasahara | Nippon Soda Co. | 7 |
| #4 | Michihiko Matsuda | Nippon Soda Co. | 7 |
| #4 | Kiyoshi Katsuura | Nippon Soda Co. | 7 |
| #7 | Izumi Kumita | Nippon Soda Co. | 5 |
| #8 | Masataka Nanba | Kabushiki Kaisha Toshiba | 4 |
| #8 | Masaaki Kataoka | Uniroyal Chemical Company | 4 |
| #10 | Satohiro Tanaka | Suntory Holdings Limited | 3 |
| #11 | Akira Nakada | — | 2 |
| #11 | Hiedo Takagi | Nippon Soda Co. | 2 |
| #11 | Shigeaki Koshino | Nsk-Warner Kabushiki Kaisha | 2 |
| #11 | Yen-Ching Huang | Sumitomo Metal Mining Co. | 2 |
| #15 | Shuuji Aisawa | Toho Titanium Co. | 1 |