| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 10 | |
| #2 | Sweden | 2 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Finland | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Italy | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Norway | 1 | |
| #12 | United States | 1 | |
| #13 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Hairstyling and cosmetic |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yamamoto Hisahiro | 22 |
| #2 | Yamamoto Kiyouko | 4 |
| Publication | Filing date | Title |
|---|---|---|
| JP2004309445A | In-vitro convection device and in-vitro convection method | |
| JPS63220897A | Hair shearing instrument | |
| JPS61170403A | Hair wave forming device | |
| JPS60171005A | Formation of hair wave | |
| JPS5977805A | Formation of permanent wave | |
| JPS5939820A | Method for forming permanent wave | |
| JPS5640594A | Binderrfile with fixed pasteboard | |
| JPS564492A | Changeeover file | |
| JPS5579193A | File | |
| JPS54163116A | Looseeleaf file |