Rohm Co., Ltd.

Japan


 
Total IP 6,427
Total IP incl. subs 7,360 (+ 939 for subs)
Total IP Rank # 160
IP Activity Score 4.3/5.0    4,908
IP Activity Rank # 111
IP AS incl. subs 4.1/5.0    5,189
Stock Symbol
ISIN JP3982800009
Market Cap. 948630000000.0  (JPY)
Industry Semiconductors
Sector Technology
Dominant Nice Class Scientific and electric apparatu...

Patents

Trademarks

4,241 45
0 2
2,093 12
34
 
Last Patent 2025 - Current mode control type switch...
First Patent 1981 - Thermal printing head
Last Trademark 2025 - LASCA
First Trademark 1984 - ROHM

Subsidiaries

7 subsidiaries with IP (933 patents, 6 trademarks)

2 subsidiaries without IP

 Register for free to unlock the subsidiary list

Industry (Nice Classification)

Latest Inventions, Goods, Services

2025 G/S Electronic publication; semiconductors; semiconductor elements; electronic circuits; integrated c...
2024 Invention Current mode control type switching power supply device. A switching power supply device include...
Invention Sic semiconductor device. An SiC semiconductor device includes an SiC semiconductor layer includ...
Invention Cooler and cooling structure for semiconductor device. A cooler includes: a housing that include...
Invention Nitride semiconductor device. The present invention provides a nitride semiconductor device, inc...
Invention Wafer structure and method for manufacturing semiconductor devices. The wafer structure includes...
Invention Resistor mounting structure. A mounting structure includes: a substrate; a conductive portion (a...
Invention Semiconductor device. A semiconductor device includes a semiconductor layer of a first conductiv...
Invention Semiconductor device. A semiconductor device includes a semiconductor layer made of SiC. A trans...
Invention Semiconductor device. A semiconductor device includes an insulating layer, a conductive layer, a...
Invention Semiconductor device with improved heat dissipation. A semiconductor device includes a lead fram...
Invention Semiconductor device and method for producing same. A semiconductor device has an electrode stru...
Invention Electronic component. An electronic component of the present disclosure includes a first insulat...
Invention Nitride semiconductor device. A nitride semiconductor device includes a first nitride semiconduc...
Invention Light-emitting element drive system and light-emitting element drive device. Provided is a light...
G/S Semiconductors; semiconductor elements, namely, semiconductor chip sets, semiconductor wafers; in...
Invention Semiconductor device and method for manufacturing semiconductor device. This semiconductor device...
Invention Semiconductor device. This semiconductor device comprises: a plurality of terminals that include ...
Invention Circuit system. A first integrated circuit and a second integrated circuit are coupled via a sin...
Invention Semiconductor device. A semiconductor device according to the present invention comprises at leas...
Invention Semiconductor device, semiconductor module, led drive device, dc/dc converter, and vehicle. A se...
Invention Semiconductor integrated circuit device and power supply device. A semiconductor integrated circ...
Invention Semiconductor device and method for manufacturing semiconductor device. A semiconductor device i...
Invention Semiconductor device. This semiconductor device comprises: a semiconductor substrate 1; an insula...
Invention Semiconductor light emitting device. A semiconductor light emitting device includes a surface-em...
Invention Semiconductor device. This semiconductor device includes: a chip having a major surface; a trench...
Invention Semiconductor device. This semiconductor device includes: a chip having a main surface; a pad reg...
Invention Semiconductor device. A semiconductor device includes: a chip which has a main surface; an active...
Invention Semiconductor device. This semiconductor device includes: a chip having a main surface; an active...
Invention Semiconductor device, and package of semiconductor device. This semiconductor device is configure...
Invention Semiconductor device. This semiconductor device includes: a chip having a main surface; a semicon...
Invention Gate driver circuit, motor drive device using same, and electronic device. A gate driver circuit...
Invention Gate driver circuit. A first current source is configured to generate a first current switchable...
Invention Semiconductor device, electronic apparatus and vehicle. The present disclosure provides a semico...
Invention Semiconductor light emitting device. A semiconductor light emitting device includes: a surface e...
Invention Power conversion circuit. In a power conversion circuit, a first end of an inductor is connected...
Invention Thermal printing head, thermal printing system, and method for manufacturing thermal printing hea...
Invention Semiconductor device. This semiconductor device is provided with: a first lead that includes a fi...
Invention Electronic device and method for manufacturing electronic device. This electronic device includes...
Invention Semiconductor device. This semiconductor device includes: a chip that has a main surface; a semic...
Invention Electronic device and method for manufacturing electronic device. This electronic device comprise...
Invention Signal transmission device, electronic device provided with signal transmission device, and vehic...
Invention Signal transmission apparatus, electronic device provided with signal transmission apparatus, and...
Invention Abnormal voltage protection circuit, signal transmission device comprising abnormal voltage prote...
Invention Semiconductor module. This semiconductor module includes a substrate, an encapsulating resin, a f...
Invention Semiconductor device. This semiconductor device includes: a first impurity region, a second impur...
G/S Semiconductors; semiconductor elements; integrated circuit chips; microprocessors; semiconductor ...
Invention Semiconductor device. This semiconductor device includes: a base impurity region of a second cond...
Invention Resistance circuit, voltage detection device, electronic apparatus, and vehicle. This resistance ...
Invention Semiconductor light emitting device. A semiconductor light emitting device comprises a current c...
Invention Photodiode. A photodiode comprises a substrate and a semiconductor stack. The substrate has a ma...
Invention Signal transmission apparatus, electronic device, and vehicle. A signal transmission apparatus 40...
Invention Mems accelerometer with horizontal sense fingers. A micro-electromechanical systems (MEMS) Z-axi...
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...