| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Canada | 1 | |
| #4 | China | 1 | |
| #5 | Finland | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hongu Tatsuhiko | 11 |
| #2 | Uesaka Kenichi | 5 |
| #3 | Hagimoto Hiroshi | 4 |
| #4 | Kato Yasuhiro | 4 |
| #5 | Kenichi Uesaka | 2 |
| #6 | Kimura Tomishi | 2 |
| #7 | Tubota Yoshitake | 1 |
| #8 | Tatsuhiko Hongu | 1 |
| #9 | Shigeta Haruyasu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2006249200A1 | Polycrystalline silicon material for solar power generation and silicon wafer for solar power generation | |
| WO2005123583A1 | Method for producing polycrystalline silicon and polycrystalline silicon for solar cell produced by the method | |
| US5071083A | Touch roller for plastic polymer film manufacturing apparatus |