| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Aoki Katsutoshi | 5 |
| #2 | Watanabe Masatoshi | 3 |
| #3 | Takeda Taizo | 1 |
| #4 | Shirai Masami | 1 |
| #5 | Seta Katsutoshi | 1 |
| #6 | Murase Tetsuro | 1 |
| #7 | Suzuki Kazunori | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2020165082A | Drilling force generation apparatus and drilling machine | |
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| JP2009108582A | Drilling apparatus | |
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| JP2005296130A | Automatic continuous fryer and frying method | |
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