| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 6 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Consumer goods | |
| #4 | Thermal processes | |
| #5 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ueno Shinji | 9 |
| #2 | Koga Naoki | 6 |
| #3 | Nagahiro Taizo | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0976978A1 | Combustion method in combustion device | |
| EP0978477A1 | Method and apparatus for condensing oxygen gas | |
| JPH0868104A | Opening/closing device for sewage drain pipe tip opening section | |
| JPS63144105A | Generation of oxygen | |
| JPS62216903A | Method for generating gaseous oxygen | |
| JPS6259503A | Method of generating oxygen gas | |
| JPS6252107A | Generation of oxygen in emergency | |
| JPS61228882A | Generation of oxygen in emergency |