| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 5 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Surface technology and coating | |
| #3 | Materials and metallurgy | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Coating metallic material | |
| #2 | Unspecified technologies | |
| #3 | Metal tempering | |
| #4 | Furnaces | |
| #5 | Details of furnaces |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hiramoto Noboru | 7 |
| #2 | Kubota Ken | 4 |
| #3 | Ken Kubota | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2007224424A | Vacuum heat treatment apparatus | |
| JP2005009702A | Multi-cell type vacuum heat treating apparatus | |
| JP2003236479A | Method and apparatus for vacuum degreasing and washing | |
| JP2003183728A | Vacuum heat-treatment apparatus | |
| JP2003155552A | Continuous vacuum carburization method and apparatus for the same | |
| CA2215897A1 | Vacuum carburizing method and device, and carburized products |