Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252140 | Solar cell substrate and process for its production | Shigeyoshi Kobayashi, Susumu Yaba, Shinya Kikugawa, Arun Madan | 1993-10-12 |
| 4808462 | Solar cell substrate | Susumu Yaba, Christopher M. Walker, Arun Madan | 1989-02-28 |