| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | China | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Hong Kong | 2 | |
| #5 | Republic of Korea | 2 | |
| #6 | United States | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 | |
| #8 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Circuits for supplying electric power | |
| #2 | Batteries | |
| #3 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Okuno Shigeo | 13 |
| #2 | Shigeo Okuno | 2 |
| Publication | Filing date | Title |
|---|---|---|
| AU2003264467A1 | Method for removing lead sulfate film formed in lead-acid battery |