Assignee
Inventors
- Yoshihiro Tanaka (103 patents)
- Sadafusa Tsuji (41 patents)
- Yoshiaki Hata (77 patents)
- Manabu Inoue (200 patents)
- Hiroshi Ootsuka (152 patents)
- Michihiro Iwata (29 patents)
- Fumiaki Ishito (13 patents)
- Koh Hayama (9 patents)
US Patent 4868597 · Granted Sep 19, 1989