| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 8 | |
| #2 | Taiwan | 4 | |
| #3 | United States | 3 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Republic of Korea | 2 | |
| #6 | Canada | 1 | |
| #7 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Mechanical elements | |
| #4 | Civil engineering | |
| #5 | Electrical machinery and energy | |
| #6 | Semiconductors |
| # | Technology | |
|---|---|---|
| #1 | Water treatment | |
| #2 | Separation | |
| #3 | Venting or aerating devices | |
| #4 | Domestic plumbing installations | |
| #5 | Electric discharge tubes | |
| #6 | Semiconductor devices | |
| #7 | Semiconductor light sources |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kawakami Yoichi | 21 |
| #2 | Kawakami Akiyasu | 5 |
| #3 | Funato Mitsuru | 1 |
| #4 | Banal Ryan Ganipan | 1 |
| #5 | Oto Takao | 1 |
| #6 | Kataoka Ken | 1 |
| #7 | Yamaguchi Masanori | 1 |
| #8 | Hata Hiroshige | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2013056405A1 | Spout faucet | |
| WO2010116479A1 | Anti-backflow valve device for reverse osmosis membrane-treated water | |
| WO2010100770A1 | Hollow cartridge | |
| TW200942714A | Improved structure of switch valve device for water processor | |
| WO2009022433A1 | Eight-way valve | |
| TW200841924A | Improved water treatment device | |
| WO2008056429A1 | Spout faucet of water treatment equipment | |
| KR20090026808A | Water treatment device | |
| JP2007018476A | Stock brand retrieval system |