Assignee
- Kabushiki Kaisha Toshiba
- Fujitsu Limited
- Hitachi
- Sumitomo Electric Industries
- Mitsubishi Electric
- Nec
- Oki Electric Industry Co.
- Rohm Co.
- Sanyo Electric Co.
- Sharp Kabushiki Kaisha
- Sony
Inventors
- Kanji Otsuka (65 patents)
- Tamotsu Usami (24 patents)