Assignee
Inventors
- Yoshihide Fukahori (24 patents)
- Wataru Seki (3 patents)
- Toshikazu Yoshizawa (4 patents)
- Shigenobu Suzuki (6 patents)
- Takeshi Suga (1 patents)
- Mitsuaki Maeda (4 patents)
- Akihiko Ogino (12 patents)
US Patent 4761925 · Granted Aug 9, 1988