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New lineup of wire bonding compatible products added to platinum thin film thermal sensor
A New Specification of ±0.5% Resistance Tolerance Added to WK73R 0508 Inch Size.
Power Ratings of Wide Terminal Type Flat Chip Resistors Significantly Increased
Lead Content Greatly Reduced!｜Earth-Friendly Resistors are Currently under Development
Release Information of Updated Product Page
Newly Released Wide Terminal Type Metal Film Flat Chip Resistors WN73H
High Precision Metal Film Flat Chip Resistors is One Size Smaller than Before
Rated power of pulse/surge resistant chip resistors is significantly expanded
Newly Released Multilayer Type Metal Oxide Varistors Offer Surge Current Up To 6000 A
New Product Lineup of HSG73P-AT -Excellent Heat Resistance, Heat Shock Resistance-
Size 3216 Metal Plate Chip Resistors TLR2BPseries Now Offers Power Rating 3W
2022 ver. CATALOG Now Downloadable
KOA has released mold wirewound resistors MWS5
High heat resistant resistors HSG73P series has now added Sn plating type
New Flat Chip Resistors HSG73P series - High Temperature Resistance up to 200 deg. C
High Reliability Flat Chip Resistors RS73 series offers new size lineup 0402
Small Type Platinum Thin Film Thermal Sensor SDT101 series offers 1kΩ
New Voltage Divider RK92D series(SIP Type) for High Voltage Circuit up to 4kV
New Release of Design Support Tools
New High Precision Metal Film Resistors RN73R 0402 - 1210
0402 Chip Current Fuse now offers new rated current values
0603 Chip Current Fuse for Automotive -High Rated Voltage-
High Reliability Flat Chip Resistors RS73 series offers 1608, 2012 & 3216 size
New wide terminal resistors with high power and high pulse resistance characteristics
Wide terminal resistors WK73 series offers new size lineup 0204, 0306, 0508
High Reliability Thick Film Chip Resistor RS73 1J(0603inch, ±0.1%, TCR±25x10-6/K)
Ultra Precision Grade Chip Resistor, Power Rating 0.1W by Size 0402
Automotive Type Current Sense Wide Terminal Chip Resistor Now Offers T.C.R. ±75×10-6/K
New Anti-Pulse Chip Resistor-Ultra Precision Grade, Tolerance±0.5％ and T.C.R.±50×10-6/K
SIP-shaped High Voltage Type Charge/Discharge Resistors suitable for Space Saving Mounting
Small Type Wirewound Resistor With Fusing Function Suitable for Space Saving Mounting
Large Size Thick Film Chip Resistors Strengthen Power Rating
Size 0612 Wide terminal Type Chip Resistor WK73R now offers 1W
Anti-Sulfur Type Low Resistance Chip Resistor SR73-RT Now Added New 1210 Size
Anti-Sulfur, High Precision Chip Resistors RK73G-RT Expands to Smaller Tolerance ±0.25%
[Mass Production Start] Small Type Pt Thermal Sensor SDT310VASP
New 0805 Current Sense Low Resistance Resistor UR73V/UR73VD(0.5W) Now Available
Automotive Type Current Sense Resistors UR73V Series 0.75W Now Available
High Power Type 7W Current Sense Resistors SLN series Now Available
Anti-Sulfur Chip Resistor Lineup Widens Low Resistance Range
Metal Chip Current Sense Resistor TLR series adds 1.5W by 1206
Power Ratings of Anti-Surge Resistor(Anti Sulfur Type) SG73-RT Improved
High Power Type 5W Current Sense Resistors SLN series Now Available
Power Shunt PSJ2/PSG4 for Large Current Sensing
High Voltage Type Chip Resistors HV73V for Automotive Applications
Precision type thick film chip resistors RK73G offer new tolerance ±0.25%
Metal plate chip jumper adds new size 1206
Thick film low ohm resistors & wide terminal resistors expand the lineup
Metal Plate Shunt TLR series expands resistance range
Metal Film F/C resistors RN73H expands resistance range
F/C chip 01005 resistor improves T.C.R.
Event・Information
SBTi Validation of Greenhouse Gas Emissions Reduction Targets
Website Maintenance Notice [23 Mar.]
Received the Innovation and Environment Bureau Director-General's Award at the 2025 Industrial Standardization Business Awards
Holiday Notice
Holiday Notice（Aug. 9, to Aug. 17, 2025）
Holiday Notice
New release of Technical Note
KOA Corporation received B Score rating in the 2024 CDP survey.
Received the Kanto Bureau of Economy, Trade and Industry Director-General's Award under the 2024 Factory Greening Award Program
Received a Certificate of Appreciation from JAXA
Holiday Notice
Release of Enhanced Parametric Search System
Holiday Notice（Aug. 10, to Aug. 18, 2024）
New release of Technical Note
Holiday Notice（Apr. 27, to May 6, 2024）
About the earthquake off the east coast of Taiwan
New release "KOA Thermal Design Technology"
About the earthquake that occurred in Ishikawa Prefecture
[Update] About the earthquake that occurred in Ishikawa Prefecture
New release of Technical Note
New release of Technical Note
Signing of the United Nations Global Compact
New channel "KOA Thermal Design Technology"
Website Maintenance Notice
New release of Technical Note
KOA will exhibit at CEATEC 2021 ONLINE
Visit KOA at Automotive Engineering Exposition 2021 Online
New release of Technical Note
Updates in "Download data for Simcenter Flotherm" page.
KOA will exhibit at CEATEC 2020 ONLINE
New release of KOA’s Uniqueness report 2020
New release of KOA’s Uniqueness report 2021
New release of KOA’s Uniqueness report 2022
New release of Technical Note
New release of Technical Note
Simcenter Flotherm data for thermo fluid simulator download page update notice
Response of Domestic Sales Bases to the New Coronavirus
Notice of Temporary Closing of KOA DENKO(MALAYSIA)SDN.BHD
Operation status of affiliates in China
KOA to exhibit at electronica 2016
The information of the plan to stop this site. (23:00 - 20:00 on March 10.)
KOA is showcasting at electronica 2018
IR News
Changes in Executive Officers
Supplementary Materials on Financial Performance for the Nine Months Ended December 31, 2025
Revision of Consolidated Financial Forecast for the Fiscal Year Ending March 31, 2026
Summary of Consolidated Financial Results for the Nine Months Ended December 31, 2025
KOA Integrated Report 2025
Corporate Governance Report (as of December 19, 2025)
Changes in Executive Officers
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Semi-annual Securities Report for the Six Months Ended September 30, 2025
(Correction, Numerical Data Correction) Partial Correction to Summary of Consolidated Financial Results for the Six Months Ended September 30, 2025
Transcript of the Performance Review for the Six Months Ended September 30, 2025
Performance Review for the Six Months Ended September 30, 2025
Changes to Dividend Policy
Formulation of the 2027 Medium-Term Management Plan
Differences Between Forecast for the Six Months Ended Sep. 30, 2025 and Actual Results, and Revision of Forecast for the Fiscal Year Ending Mar. 31, 2026
Summary of Consolidated Financial Results for the Six Months Ended September 30, 2025
Completion of Payment for Disposal of Treasury Shares as Restricted Stock Compensation
Revision of consolidated financial forecast for the six months ending September 30, 2025 and the fiscal year ending March 31, 2026
Summary of Consolidated Financial Results for the Three Months Ended June 30, 2025
Corporate Governance Report (as of July 11, 2025)
Disposal of Treasury Shares as Restricted Stock Compensation
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Notice of Resolutions Adopted at the 97th Ordinary General Meeting of Shareholders
Annual Securities Report for the Fiscal Year Ended March 31, 2025
Convocation Notice for the 97th Ordinary General Meeting of Shareholders
Performance Review for the Fiscal Year Ended March 31, 2025
Partial Amendment to the Articles of Incorporation
Differences Between Forecast and Actual Consolidated Finacial Results for the Fiscal Year Ended March 2025
Summary of Consolidated Financial Results for the Year Ended March 31,2025
Completion of Cancellation of Treasury Shares
KOA Integrated Report 2024
Cancellation of Treasury Shares
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Change in Representative Director
Summary of Consolidated Financial Results for the Nine Months Ended December 31, 2024
Performance Review for the Six Months Ended September 30, 2024
Recording of non-operating expenses (foreign exchange losses)
Revision of the consolidated financial forecast and dividend forecast for the year ending March 31, 2025
Summary of Consolidated Financial Results for the Six Months Ended September 30,2024
Revision of the consolidated financial forecast for the year ending March 31, 2025
Corporate Governance Report（as of July 24, 2024）
Summary of Consolidated Financial Results for the Three Months Ended June 30,2024
Completion of Payment for Disposal of Treasury Shares as Restricted Stock Compensation
Annual Securities Report for the Fiscal Year Ended March 31, 2024
Disposal of Treasury Shares as Restricted Stock Compensation
Introduction of the Executive Officer System and Personnel Changes
Convocation Notice for the 96th Ordinary General Meeting of Shareholders
Performance Review for the Fiscal Year Ended March 31, 2024
Summary of Consolidated Financial Results for the Year Ended March 31,2024
Revision of the consolidated financial forecast for the year ended March 31, 2024
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2023
Revision of the consolidated financial forecast for the year ending March 31, 2024
Summary of Consolidated Financial Results for the Six Months Ended September 30,2023
Summary of Consolidated Financial Results for the Three Months Ended June 30,2023
Completion of Payment for Disposal of Treasury Shares as Restricted Stock Compensation
KOA Integrated Report 2023（English Version）
Establishment of a new factory at KOA DENKO (MALAYSIA) SDN. BHD.
Summary of Consolidated Financial Results for the Year Ended March 31,2023
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2022
Summary of Consolidated Financial Results for the Six Months Ended September 30,2022
Summary of Consolidated Financial Results for the Three Months Ended June 30,2022
Notice of Convocation of the 94th Ordinary General Meeting of Shareholders
Summary of Consolidated Financial Results for the Year Ended March 31,2022
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2021
Summary of Consolidated Financial Results for the Six Months Ended September 30,2021
Summary of Consolidated Financial Results for the Three Months Ended June 30,2021
Summary of Consolidated Financial Results for the Year Ended March 31,2021
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2020
Summary of Consolidated Financial Results for the Six Months Ended September 30,2020
Summary of Consolidated Financial Results for the Three Months Ended June 30,2020
Summary of Consolidated Financial Results for the the Year Ended March 31,2020
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2019
Summary of Consolidated Financial Results for the Six Months Ended September 30,2019
Summary of Consolidated Financial Results for the Three Months Ended June 30,2019
Notice of Convocation of the 91th Ordinary General Meeting of Shareholders
Notice of Convocation of the 92th Ordinary General Meeting of Shareholders
Notice of Convocation of the 93rd Ordinary General Meeting of Shareholders
Summary of Consolidated Financial Results for the Year Ended March 31,2019
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2018
Summary of Consolidated Financial Results for the Six Months Ended September 30,2018
Summary of Consolidated Financial Results for the Three Months Ended June 30, 2018
Notice of Convocation of the 90th Ordinary General Meeting of Shareholders
Summary of Consolidated Financial Results for the Year Ended March 31,2018
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2017
Summary of Consolidated Financial Results for the Six Months Ended September 30,2017
Summary of Consolidated Financial Results for the Three Months Ended June 30,2017
Notice regarding the acquisition the equity interest of VIA electronic GmbH by our subsidairy company
Notice of Convocation of the 89th Ordinary General Meeting of Shareholders
Summary of Consolidated Financial Results for the Year Ended March 31,2017
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2016
To our shareholders
Summary of Consolidated Financial Results for the Six Months Ended September 30,2016
Summary of Consolidated Financial Results for the Three Months Ended June 30,2016
Notice of Convocation of the 88th Ordinary General Meeting of Shareholders
Summary of Consolidated Financial Results for the Year Ended March 31,2016
Summary of Consolidated Financial Results for the Nine Months Ended December 31,2015
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