Top Inventors at International Catalyst Technology All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Makoto Horiuchi | 14 |
| 2 | Shigeyoshi Taniguchi | 6 |
| 3 | Tatsuya Yoshikawa | 6 |
| #4 | Masao Hori | 5 |
| #5 | Takeshi Matsumoto | 5 |
| #6 | Takuji Nakane | 5 |
| #7 | Akihisa Okumura | 4 |
| #8 | Hideki Goto | 3 |
| #9 | Ryugo Kakimi | 3 |
| #10 | Takao Kobayashi | 3 |
| #11 | Takahiro Uno | 3 |
| #12 | Katsuji Tanihira | 2 |
| #13 | Masanori Ikeda | 2 |
| #14 | Naohiro Kato | 2 |
| #15 | Atsushi Fukumoto | 2 |
| #16 | Eiichi Shiraishi | 1 |
| #17 | Hideki Gotoh | 1 |
| #18 | Hiroaki Ohhara | 1 |
| #19 | Kazuo Tsuchitani | 1 |
| #20 | Kinichi Iwachido | 1 |
| #21 | Masanori Ide | 1 |
| #22 | Makoto Kawanami | 1 |
| #23 | Mariko Ono | 1 |
| #24 | Nakaba Tamura | 1 |
| #25 | Norimasa Okuda | 1 |
| #26 | Satoshi Inui | 1 |
| #27 | Takayuki Onodera | 1 |