| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 7 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Australia | 1 | |
| #4 | Republic of Korea | 1 | |
| #5 | United States | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Emergency protective circuit arrangements | |
| #2 | Spark gaps and corona devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kijima Hitoshi | 13 |
| #2 | Yashiro Kenji | 2 |
| #3 | Shibayama Masao | 1 |
| #4 | Nishizawa Shigeru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2011210732A | Switch | |
| JP2010261506A | Buried pipe shielding structure and buried pipe shielding method | |
| JP2009240029A | Lightning protection device and housing box | |
| JP2009240028A | Lightning protection device and distribution switchboard with lightning protection function | |
| JP2009238377A | Discharge device | |
| JP2009199804A | Contact and switch | |
| EP2043216A1 | Separator | |
| JP2007185081A | Overvoltage protection device and method therefor |