| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 24 | |
| #2 | United States | 22 | |
| #3 | China | 17 | |
| #4 | Taiwan | 16 | |
| #5 | WIPO (World Intellectual Property Organization) | 10 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Semiconductors | |
| #4 | Surface technology and coating | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Semiconductor devices | |
| #5 | Servomotors | |
| #6 | Shaping of plastics | |
| #7 | Coating metallic material | |
| #8 | Vehicle brake control systems | |
| #9 | Pipe-line systems | |
| #10 | Single-crystal-growth |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kou Chokuto | 19 |
| #2 | Iizuka Hisanobu | 18 |
| #3 | Iwabuchi Toshiaki | 15 |
| #4 | Kogure Yusaku | 10 |
| #5 | Koyama Goki | 6 |
| #6 | Yamada Yasuhito | 5 |
| #7 | Goto Akira | 4 |
| #8 | Horiguchi Hajime | 4 |
| #9 | Iijima Kazuo | 4 |
| #10 | Homma Katsuhiko | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US2020096127A1 | Vacuum gate valve | |
| KR20200135134A | Locking device for pipe joints and valve joints | |
| CN111758000A | One-touch lock valve and material container | |
| WO2018037993A1 | Diaphragm valve, and flow rate control device for semiconductor manufacturing equipment | |
| CN107208821A | Blocked valve and material container blocked valve | |
| WO2015020209A1 | High-pressure automatic diaphragm valve | |
| KR20120007963A | Actuator for valve | |
| TW201007033A | Pressure control batterfly valve | |
| US2009127487A1 | Slide valve | |
| US7100892B2 | Non-rubbing gate valve for semiconductor fabrication apparatus |