Assignee
Inventors
- Sumio Okuno (23 patents)
- Michifumi Takeichi (10 patents)
- Keiji Ohmura (19 patents)
- Msato Okazaki (1 patents)
- Hitoshi Tsuruda (5 patents)
- Hiroyuki Yamada (357 patents)
- Morishige Hattori (17 patents)
- Kenji Kimura (289 patents)
US Patent 5113769 · Granted May 19, 1992