Koa Corporation
Ina-shi, JP· latest recorded location
KOA CORPORATION is named on 161 US grants and 197 published applications in this corpus. Its most frequent classification is H01C (Resistors).
- Granted patents
- 161
- Published applications
- 197
- Inventors
- 218
- Granted in 2026 so far
- 4
- Most recent grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 4 |
| 2005 | 1 | 5 |
| 2006 | 4 | 1 |
| 2007 | 4 | 3 |
| 2008 | 3 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 4 |
| 2011 | 2 | 1 |
| 2012 | 5 | 4 |
| 2013 | 3 | 1 |
| 2014 | 3 | 3 |
| 2015 | 0 | 5 |
| 2016 | 3 | 5 |
| 2017 | 7 | 11 |
| 2018 | 13 | 18 |
| 2019 | 13 | 12 |
| 2020 | 8 | 13 |
| 2021 | 15 | 21 |
| 2022 | 16 | 25 |
| 2023 | 9 | 23 |
| 2024 | 15 | 16 |
| 2025 | 23 | 9 |
| 2026 | 4 | 6 |
By publication year. 2026 runs to 8 Oct.
Technology areas
Share of 358 documents
- H01CResistors244
- G01RMeasuring electric variables95
- G01NInvestigating or analysing materials by determining their chemical or physical properties31
- H05KPrinted circuits31
- Y10TTechnical subjects covered by former us classification22
- G01FMeasuring volume, volume flow, mass flow or liquid level21
- G01PMeasuring linear or angular speed, acceleration, deceleration, or shock21
- H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by18
- G01KMeasuring temperature17
- C22CAlloys13
Recent patents
- Current detection circuit25 Aug 2026US 12,719,345 B2
- Sensor element26 May 2026US 12,638,321 B2
- Shunt resistor and shunt resistance device17 Mar 2026US 12,580,104 B2
- Oxygen sensor element and method for manufacturing same10 Mar 2026US 12,571,752 B2
- Sensor device16 Dec 2025US 12,498,260 B2
- Chip resistor1 Oct 2026US 2026/0302005 A1
- Metal plate resistor and method for manufacturing metal plate resistor24 Sep 2026US 2026/0290657 A1
- Chip resistor9 Jul 2026US 2026/0196389 A1
- Shunt resistor2 Jul 2026US 2026/0188544 A1
- Shunt resistor and shunt resistance device25 Jun 2026US 2026/0177588 A1
Most cited
By later US patents