Executives
| YUYAMA MANUFACTURING CO., LTD | |
|---|---|
| President | Mr. Hiroyuki Yuyama |
| Senior Managing Director | Mr. Fumiaki Hayakawa |
| Managing Director | Mr. Koichi Kitamura |
| Managing Director | Mr. Takafumi Kurose |
| Auditor | Mr. Kazuto Wakisaka |
| YUYAMA CO., LTD. | |
| Senior adviser | Mr. Hiroyuki Yuyama |
| CEO | Mr. Fumiaki Hayakawa |
| President | Mr. Koichi Kitamura |
| Senior Managing Director | Mr. Masashi Yuyama |
| Auditor | Mr. Kazuto Wakisaka |