| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Japan | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Resonators | |
| #2 | Generation of oscillations | |
| #3 | Tuning resonant circuits |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hirama Koichi | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US2012223782A1 | Complex negative feedback frequency selection output circuit and oscillation circuit using the same | |
| JP2009147698A | Composite resonance type converter circuit | |
| US2009251234A1 | Complex resonance circuit | |
| JP2007295256A | Composite resonant circuit, and oscillation circuit using same | |
| WO2006046672A1 | Composite resonance circuit and oscillation circuit using the circuit |