Top Inventors at Grand Polymer Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Mikio Hashimoto | 5 |
| 2 | Ikunori Sakai | 3 |
| 3 | Hideki Nakagawa | 2 |
| #4 | Satoshi Matsuura | 2 |
| #5 | Takao Nomura | 2 |
| #6 | Tohru Takaoka | 2 |
| #7 | Haruo Fukuda | 1 |
| #8 | Hiroyuki Ikeuchi | 1 |
| #9 | Hisayuki Iwai | 1 |
| #10 | Hiroshi Satoh | 1 |
| #11 | Hiroshi Yoshikawa | 1 |
| #12 | Koji Tsuzukiyama | 1 |
| #13 | Masatoshi Matsuda | 1 |
| #14 | Masanori Motooka | 1 |
| #15 | Michio Toriumi | 1 |
| #16 | Osamu Kito | 1 |
| #17 | Satoru Moriya | 1 |
| #18 | Shigehiro Asano | 1 |
| #19 | Shigeru Harima | 1 |
| #20 | Shigeru Ikai | 1 |
| #21 | Tadashi Imai | 1 |
| #22 | Takayuki Nagai | 1 |
| #23 | Takeyoshi Nishio | 1 |
| #24 | Takashi Shimizu | 1 |
| #25 | Toshiyuki Fujiwara | 1 |
| #26 | Toshihiko Inagaki | 1 |
| #27 | Tsutomu Okano | 1 |
| #28 | Yasuhisa Sakakibara | 1 |
| #29 | Yoshifumi Nakano | 1 |
| #30 | Yutaka Sano | 1 |
| #31 | Yoshiyuki Sakuda | 1 |
| #32 | Nobuyosi Momoda | 1 |
| #33 | Akira Todo | 1 |