Assignee
Inventors
- Satoshi Nishigaki (13 patents)
- Ryusuke Kita (14 patents)
- Shuhei Tsuchimoto (35 patents)
- Akiteru Rai (8 patents)
- Masaru Iwasaki (8 patents)
- Yuzi Matsuda (1 patents)
- Takashi Nukii (11 patents)
US Patent 4766085 · Granted Aug 23, 1988