Toyo Seikan Group Engineering Co., Ltd.

Kazuki Takahashi (2 out of 5 patents)

Kazumoto Obata (2 out of 5 patents)

Shinichiro Henda (2 out of 2 patents)

4.  Hiroshi Takahashi (1 out of 224 patents)

5.  Mitsuo Kumata (1 out of 5 patents)

6.  Akio Sato (1 out of 7 patents)

7.  Shin Nakamura (1 out of 3 patents)

8.  Yoshihiro Kaitsuka (1 out of 1 patent)

9.  Yukihito Nozaki (1 out of 1 patent)

10.  Tomoho Kikuchi (1 out of 1 patent)

11.  Kunihiko Hatazawa (1 out of 1 patent)

12.  Keitaro Hayashi (1 out of 1 patent)

13.  Yasuhiro Tokunaga (6 patents)