Top Inventors at Idemitsu Unitech Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenichi Tanaka | 18 |
| 2 | Ryo Katada | 14 |
| 3 | Takumi TODAKA | 14 |
| #4 | Shuichi Goto | 12 |
| #5 | Yoshinori Nanba | 8 |
| #6 | Tomoyuki Kitajima | 4 |
| #7 | Yoshinori NAMBA | 4 |
| #8 | Kaname KONDO | 3 |
| #9 | Shunichi Ito | 3 |
| #10 | Hiroyuki Takahashi | 2 |
| #11 | Hiroaki Yoshimura | 2 |
| #12 | Masao Takashige | 2 |
| #13 | Raizo Kuge | 2 |
| #14 | Sho Obara | 2 |
| #15 | Shigeki Yamaguchi | 2 |
| #16 | Takehiro Iwamoto | 2 |
| #17 | Takuto OGAWA | 2 |
| #18 | Toshiya Sato | 2 |
| #19 | Tomohiko Tamaoki | 2 |
| #20 | Yuichi Oki | 2 |
| #21 | Akira Funaki | 2 |
| #22 | Hiroko Shioda | 1 |
| #23 | Katsumi Uchiyama | 1 |
| #24 | Kenichi Mori | 1 |
| #25 | Keishi Tada | 1 |
| #26 | Koji Kakigami | 1 |
| #27 | Masahiro Akamatsu | 1 |
| #28 | Masahiro Kubo | 1 |
| #29 | Michio Mogami | 1 |
| #30 | Taishiro AKAO | 1 |
| #31 | Tatsuro MATSUURA | 1 |
| #32 | Tetsuro Yasuike | 1 |
| #33 | Tohru Yukumoto | 1 |
| #34 | Yoichiro Kimura | 1 |
| #35 | Yusuke Tameda | 1 |
| #36 | Akira OTOBUCHI | 1 |