Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491808 | Electrolytic etching method, method for producing photovoltaic element, and method for treating defect of photovoltaic element | Hirofumi Ichinose, Ippei Sawayama, Tsutomu Murakami, Masaya Hisamatsu | 2002-12-10 |
| 6472594 | Photovoltaic element and method for producing the same | Hirofumi Ichinose, Akio Hasebe, Tsutomu Murakami, Satoshi Shinkura | 2002-10-29 |