Rohm Co., Ltd.

Japan


 
Total IP 6,402
Total IP incl. subs 7,339 (+ 943 for subs)
Total IP Rank # 158
IP Activity Score 4.3/5.0    4,906
IP Activity Rank # 110
IP AS incl. subs 4.1/5.0    5,195
Stock Symbol
ISIN JP3982800009
Market Cap. 948630000000.0  (JPY)
Industry Semiconductors
Sector Technology
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

4,221 45
1 3
2,086 12
34
 
Last Patent 2025 - Usb interface circuit
First Patent 1981 - Thermal printing head
Last Trademark 2025 - LASCA
First Trademark 1971 - R.OHM

Subsidiaries

7 subsidiaries with IP (937 patents, 6 trademarks)

2 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 G/S Electronic publication; semiconductors; semiconductor elements; electronic circuits; integrated c...
2024 Invention Usb interface circuit. A pull-up circuit contains a variable current source structured to supply...
Invention Semiconductor device. A semiconductor device includes an insulating layer, a barrier electrode l...
Invention Power semiconductor device and boost converter. A power semiconductor device used in a boost con...
Invention Semiconductor device. A semiconductor device includes a first wire, a first semiconductor elemen...
Invention Semiconductor device. A semiconductor device includes a plurality of first switching parts, a fi...
Invention Semiconductor device. A semiconductor device includes a semiconductor element and a first connec...
Invention Joint structure, semiconductor device, and joining method. A joint structure includes a first an...
Invention Semiconductor device and method for manufacturing semiconductor device. A semiconductor device i...
Invention Overcurrent protection circuit. In order both to accommodate instantaneous current as well as ov...
Invention Gate drive circuit, power good circuit, overcurrent detection circuit, oscillation prevention cir...
Invention Semiconductor device. A semiconductor device includes a semiconductor chip that has a main surfa...
Invention Pulse transmission circuit, signal transmission device, and electronic apparatus. A pulse transm...
Invention Bootstrap circuit, power supply device, and vehicle. A bootstrap circuit includes a first switch...
Invention Linear regulator, semiconductor device, and switching power supply. A linear regulator includes:...
Invention Nitride semiconductor device comprising layered structure of active region and method for manufac...
Invention Semiconductor device. A semiconductor device includes a semiconductor element circuit, a conduct...
Invention Semiconductor device and switching power supply. A semiconductor device includes: a first driver...
Invention Output feedback control circuit and switching power supply. An output feedback control circuit i...
Invention Semiconductor device. A semiconductor device A1 includes a substrate 3, a conductive section 5 f...
G/S Semiconductors; semiconductor elements, namely, semiconductor chip sets, semiconductor wafers; in...
Invention Linear power source circuit. A linear power source circuit includes: an input unit to which an i...
Invention Power supply control device and switching power supply apparatus. In a switching power supply ap...
Invention Macro model, circuit design simulation program including macro model and circuit design simulator...
Invention Semiconductor device. This semiconductor device comprises: a main transistor that has a main surf...
Invention Insulating substrate. An insulating substrate comprises a ceramic substrate having a major surfa...
Invention Semiconductor package. Provided is a semiconductor package including a Si substrate, a drift lay...
Invention Simulation apparatus and program. A simulation apparatus comprises a model storage unit storing ...
Invention Power supply control device and power supply device. A power supply control device includes a fe...
G/S Semiconductors; semiconductor elements; integrated circuit chips; microprocessors; semiconductor ...
Invention Hall element and manufacturing method thereof, and semiconductor device. The present disclosure ...
Invention Nitride semiconductor device. A nitride semiconductor device includes an electron transit layer,...
Invention Nitride semiconductor device and manufacturing method thereof. The present disclosure provides a...
Invention Semiconductor device. This semiconductor device includes: a chip having a main surface; a body re...
Invention Chip resistor and electronic circuit device. A chip resistor includes: an insulating substrate h...
Invention Semiconductor device and method for manufacturing semiconductor device. This semiconductor device...
Invention Piezoelectric film device, transducer, and method for manufacturing piezoelectric film device. A...
Invention Semiconductor device, vehicle, and method for manufacturing semiconductor device. This semiconduc...
Invention Method for producing semiconductor device, and semiconductor device. A method for producing a sem...
Invention Transducer and manufacturing method thereof. The present disclosure provides a transducer. The t...
Invention Thermal print head and method for manufacturing thereof. The present disclosure provides a therm...
Invention Semiconductor device. This semiconductor device is provided with a first lead, a semiconductor el...
Invention Overcurrent protection circuit, semiconductor device, electronic equipment, and vehicle. An overc...
Invention Overcurrent protection circuit, semiconductor device, electronic apparatus, and vehicle. An over...
Invention Semiconductor device. This semiconductor device comprises a first terminal, a second terminal, a ...
Invention Semiconductor device. A semiconductor device includes: a first chip including a first semiconduc...
Invention Semiconductor device. A semiconductor device includes: a first chip including a first circuit; a...
Invention Semiconductor device. A semiconductor device according to the present invention comprises a plura...
Invention Operational amplifier and semiconductor device. An operational amplifier includes: an input circ...
Invention Semiconductor laser element. This semiconductor laser element comprises an element body which out...
Invention Semiconductor device. This semiconductor device includes a semiconductor element including a surf...
Invention Semiconductor device. This semiconductor device is provided with: a semiconductor element that ha...
G/S semiconductor testing apparatus; semiconductor inspection apparatus; semiconductor memory inspect...
G/S Semiconductor testing apparatus; downloadable electronic publications in the nature of books, mag...
G/S micro-electro-mechanical devices, namely, sensors and electric actuators; acceleration sensors; a...
G/S Micro-electro-mechanical devices, namely, sensors and electric actuators; acceleration sensors; a...
G/S semiconductors; semiconductor elements; integrated circuit chips; microprocessors; semiconductor ...
2023 G/S electronic circuits; integrated circuits; large-scale integrated circuits; semiconductors; semico...
G/S Electronic circuits; integrated circuits; large-scale integrated circuits; semiconductors; semico...
G/S vertical cavity surface emitting lasers [VCSELs]; semiconductor light emitting devices; semicondu...
G/S Vertical cavity surface emitting lasers (VCSELs) for the measuring and monitoring of scientific a...
G/S Semiconductors; integrated circuit chips; microprocessors; semiconductor devices; semiconductor c...
G/S Semiconductors; integrated circuit chips, namely, electronic chips for the manufacture of integra...
G/S Electronic circuits; integrated circuits; large-scale integrated circuits
G/S Telecommunication machines and apparatus, namely, transmitters and receivers for autonomous mobil...
G/S power modules; semiconductor modules; integrated circuit modules.
G/S Power modules comprised of electrical switches for car traction inverters; semiconductor modules;...
G/S Downloadable virtual goods, namely, computer programs featuring electronic components in the natu...
G/S Computer programs in online virtual worlds; downloadable virtual goods, namely, computer programs...
G/S Telecommunication machines and apparatus; radio communication machines and apparatus; vehicular r...
2022 G/S Semiconductor devices; integrated circuits; switches; semiconductor switches; intelligent power ...
G/S Semiconductor devices; integrated circuits; electric switches; semiconductor switches in the natu...
G/S Semiconductors; electronic circuits; integrated circuits; large-scale integrated circuits; elect...
G/S Semiconductors; electronic circuits; integrated circuits; large-scale integrated circuits; measur...
G/S Semiconductors; electronic circuits; integrated circuits; large-scale integrated circuits; gate d...
G/S Semiconductors; electronic circuits; integrated circuits; large-scale integrated circuits; microc...
G/S Integrated circuit chips; microprocessors; semiconductor devices; semiconductor chips; semiconduc...
G/S integrated circuit chips; microprocessors; semiconductor devices; semiconductor chips; semiconduc...
2021 G/S Power controllers; electric transformers; inverters [electricity]; switches, electric; integrated...
G/S Power controllers; electric transformers; electric inverters; switches, electric; integrated circ...
G/S Fire alarms; gas alarms; railway signal apparatus, luminous or mechanical; vehicle breakdown warn...
G/S Fire alarms; gas alarms; anti-theft warning apparatus; railway signal apparatus, luminous or mec...
G/S AC-DC converters; DC-DC converters, LED drivers; filters for removing electromagnetic ray; over c...
G/S Electrical power distributors; electric current control devices; power distribution or control m...