Inventor · disambiguated record
Takatsugu Wachi
Also filed as: WACHI TAKATSUGU
7 granted patents·3 pending applications·113 citations·filing 2003–2025
82Inventor score
Top patents by PatentIndex Score
10 records- 0195US10075073B2DC/DC converter and switching power supply having overcurrent protectionROHM CO LTD·Filed 2016·Granted Sep 11, 2018·29 cites·32 claims
- 0292US7176701B2Semiconductor device, temperature sensor, and electronic apparatus comprising itROHM CO LTD·Filed 2003·Granted Feb 13, 2007·73 cites·6 claims
- 0378US10892684B2Circuit for a switching power supplyROHM CO LTD·Filed 2019·Granted Jan 12, 2021·5 cites·10 claims
- 0470US2025323576A1Power source control device, dc/dc converter, and vehicleROHM CO LTD·Filed 2025·Application pending·0 cites
- 0561US8653800B2Step-up switching power supply device with current-limiting transistorWACHI TAKATSUGU·Filed 2010·Granted Feb 18, 2014·3 cites·18 claims
- 0656US2024145406A1Semiconductor circuit and semiconductor deviceROHM CO LTD·Filed 2023·Application pending·0 cites
- 0753US12355354B2Switching power supply circuit and switching power supply deviceROHM CO LTD·Filed 2023·Granted Jul 8, 2025·0 cites·9 claims
- 0852US12407254B2Power supply semiconductor device and DC/DC converterROHM CO LTD·Filed 2023·Granted Sep 2, 2025·0 cites·9 claims
- 0949US8330440B2Power supply device with gain changing error amplifierWACHI TAKATSUGU·Filed 2008·Granted Dec 11, 2012·3 cites·7 claims
- 1044US2022239215A1Power Supply Control DeviceROHM CO LTD·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →