Assignee
Inventors
- Takanori Endo (20 patents)
- Tadashi Yonezawa (13 patents)
- Masami Miyake (16 patents)
- Seiro Yahata (7 patents)
- Shigeru Yashima (1 patents)
- Shigenobu Irokawa (2 patents)
- Sumio Suzuki (2 patents)
- Hideaki Matsuda (72 patents)
US Patent 6474156 · Granted Nov 5, 2002