Assignee
Inventors
- Masashi Kodama (3 patents)
- Yutaka Katayama (11 patents)
- by Shigemasa Katayama, heir (1 patents)
- by Nobuko Katayama, heir (1 patents)
- by Yoshimasa Katayama, heir (1 patents)
- Toru Tani (4 patents)
- Kazuo Teramoto (11 patents)
- Mutsuo Murakami (2 patents)