| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 12 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Surface technology and coating | |
| #3 | Chemical engineering | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Chemical or physical processes | |
| #3 | Generating mechanical vibrations | |
| #4 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fujita Hideto | 12 |
| #2 | Fujita Yoshiyuki | 11 |
| #3 | Fujino Ryoji | 8 |
| #4 | Matsumura Yoshio | 5 |
| #5 | Hatano Kazuhide | 5 |
| #6 | Maeda Toyoichi | 3 |
| #7 | Kudo Osamu | 3 |
| #8 | Ogawa Yasutaka | 1 |
| #9 | Takei Masami | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2019163498A | Heat treatment apparatus | |
| JP2011127214A | Heat treatment apparatus | |
| JP2009102671A | Heat treatment apparatus | |
| JP2008038190A | Bath cooling apparatus | |
| JP2007084863A | Heat treatment furnace | |
| JP2007023336A | Heat-treatment furnace | |
| JP2007023335A | Heat-treatment furnace | |
| JP2004043914A | Gas nitriding furnace | |
| JP2002357524A | Hardness meter | |
| JP2002323422A | Hardness meter | |
| JP2002053911A | Heat treatment system and method for transporting solution | |
| JP2000180330A | Durometer |