KOA Corporation

Japan


Create a watch for KOA Corporation
Total IP 417
Total IP incl. subs 424 (+ 7 for subs)
Total IP Rank # 3,155
IP Activity Score 3.2/5.0    283
IP Activity Rank # 2,503
Stock Symbol 69990 (tse)
ISIN JP3283400004
Market Cap. 57238329736.0  (JPY)
Industry Electronic Components
Sector Technology
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

158 9
1 3
233 8
5
 
Last Patent 2025 - Zinc oxide varistor and method f...
First Patent 1984 - Electroluminescent device having...
Last Trademark 2024 - KOA
First Trademark 1980 - KOA

Subsidiaries

1 subsidiaries with IP (0 patents, 7 trademarks)

1 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 Invention Zinc oxide varistor and method for producing zinc oxide varistor. The present invention relates t...
2024 Invention Layered resistor. Provided is a layered resistor that has a low profile but still suppresses shor...
Invention Resistor. This resistor comprises a die pad and a circuit body disposed on the die pad, wherein t...
Invention Chip resistor. A chip resistor 1, which is excellent in the surge characteristics and also suita...
Invention Method for manufacturing resistor. The present invention relates to a method for manufacturing a ...
G/S Temperature sensors; inclinometers; pressure sensors; pressure gauges; manometers, namely, high-p...
G/S Temperature sensors; inclinometers; pressure sensors; pressure gauges; manometers; gas sensors; ...
G/S Temperature sensors; inclinometers; pressure sensors; pressure gauges; manometers; gas sensors; a...
Invention Current detecting device. This current detecting device comprises a resistor which has a stacked ...
Invention Current detection device. This current detection device is provided with: a lamination-structure ...
Invention Current detection device. The present invention provides a configuration for more precisely detec...
Invention Stacked resistor and method for manufacturing stacked resistor. Disclosed is a stacked resistor w...
Invention Multilayer resistor and method for manufacturing multilayer resistor. This multilayer resistor is...
Invention Sulfurization detection sensor. The present invention provides a sulfurization detection sensor c...
Invention Chip resistor. Provided is a chip resistor excellent in surge characteristics and suitable for mi...
Invention Chip-type current fuse. The chip-type current fuse is configured to include a fuse element 5 for...
Invention Wind velocity measuring system. The objective of the present invention is to provide a wind veloc...
Invention Flow rate sensor. The objective of the present invention is to provide a flow rate sensor in whic...
Invention Sensor system. The purpose of the present invention is to provide an optimal sensor system for me...
Invention Metal plate resistor and method for manufacturing metal plate resistor. The present invention rel...
G/S Temperature sensors; inclinometers; pressure sensors; pressure gauges; manometers being pressure ...
Invention Current detection circuit. A current detection circuit, including: an output circuit to output a...
Invention Multi-linked devices. The objective of the present invention is to provide multi-linked devices t...
Invention Oxygen sensor element. Provided is an oxygen sensor element that enables reduced power consumptio...
2023 Invention Chip resistor and chip resistor manufacturing method. Provided is a chip resistor with excellent ...
Invention Oxygen gas detecting elemental device and method for using oxygen gas detecting elemental device....
Invention Copper alloy material and shunt resistor. A copper alloy material having a low volume resistivit...
Invention Shunt resistor. The present invention relates to a shunt resistor. This shunt resistor (1) compri...
Invention Electronic component. An electronic component according to an embodiment of the present inventio...
Invention Electronic component. A resistor 10, which is an electronic component that provides suppression o...
Invention Temperature sensor and current detection device. The present invention provides: a temperature se...
Invention Shunt resistor and shunt resistor manufacturing method. The present invention relates to a shunt ...
Invention All-solid-state potassium ion selective electrode, and method for producing same. x6y22O, at leas...
Invention All-solid-state potassium ion selective electrode. xxFeFe, wherein x represents a number that is ...
Invention Resistor. The present invention relates to a resistor, particularly to a surface-mount resistor. ...
Invention Shunt resistor and current detection apparatus. The present invention relates to a shunt resisto...
Invention Load sensor element. A load sensor element include: a substrate; an inorganic layer that is a fi...
Invention Load sensor element. A load sensor element includes a substrate and an inorganic layer having a ...
2022 Invention Chip resistor. A chip resistor includes an insulating substrate, a pair of front electrodes prov...
Invention Electronic component. An electronic component that can secure a creepage distance between electr...
Invention Circuit protection device. A circuit protection device includes a pair of electrode portions, an...
Invention All-solid-state potassium ion-selective electrode and method of manufacturing the all-solid-state...
Invention Shunt resistor. The shunt resistor includes: the resistance body; and the electrode joined to th...
Invention Built-in chip resistor for substrate, resistor built-in module, manufacturing method of resistor ...
Invention Resistive oxygen gas sensor and oxygen sensor device. In a resistive oxygen gas sensor, an oxyge...
Invention Oxygen sensor element and method for manufacturing same. An oxygen sensor element that can achie...
Invention Temperature sensor. Provided is a temperature sensor which can enhance strength more easily. The...
Invention Sensor element. Provided is a sensor element capable of obtaining a wide sensing region, suppres...
Invention Current detection device. The present invention relates to a current detection device, in partic...
Invention Resistor and manufacturing method of resistor. Provided is a resistor provided with a resistance...
Invention Mounting structure for chip component. Provided is a mounting structure for a chip component hav...
Invention Sensor device. An object is to provide a sensor device capable of highly accurately detecting a ...
2021 Invention Chip component. A chip resistor according to the present invention includes an insulating substr...
2020 Invention Chip component production method. A chip component 10 comprises: an insulating substrate 1 on whi...
2019 G/S Electric resistors for telecommunication apparatus; telecommunication machines and apparatus; se...
G/S Coils, electric; fuses for telecommunication apparatus; electric resistors for telecommunication...
G/S Integrated circuit chips; Fuses; Electric resistors; Rheostats; Semiconductor parts; Magnetic mat...
2018 G/S Electric measuring devices, namely, flowmeters, temperature indicators, speed indicators, meteoro...
G/S Measuring devices, electric; LED monitors; telecommunication machines and apparatus; computers; ...
2016 G/S Measuring devices, electric; power distribution or control machines and apparatus; electric or m...
2006 G/S [electric resistors, fixed resistor networks, potentiometers,] circuit protectors [, capacitors, ...
2004 G/S Electric coils; fuses adapted for communication apparatus; electric resistances; thermistors; hyb...
1999 G/S resistors, fixed resistors networks, potentiometers, circuit protectors, capacitors, thermistors,...
1998 G/S fixed resistors, resistor networks, potentiometers, circuit protectors, capacitors, thermistors, ...
1980 G/S Resistors