HITACHI ENERGY LTD Patent Application Trends in 2025
HITACHI ENERGY LTD Patent Filing Activity
HITACHI ENERGY LTD patent applications in 2025
Top 10 Technology Areas
- H02M3/33573 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers)
- H01L25/0655 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 2 patents
- Example: 20250062242. POWER MODULE AND METHOD FOR MANUFACTURING A POWER MODULE (Hitachi Energy Ltd)
- H10D62/8325 (No explanation available)
- Count: 2 patents
- Example: 20250113570. MANUFACTURING METHOD AND POWER SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H02B1/24 (Circuit arrangements for boards or switchyards)
- H01Q1/526 ({Electromagnetic shields})
- H01Q13/20 (Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave)
- H02H3/405 (EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions)
- Count: 1 patents
- Example: 20250038519. DISTANCE PROTECTION OF A TRANSMISSION LINE (Hitachi Energy Ltd)
- G01R31/085 (Locating faults in cables, transmission lines, or networks)
- Count: 1 patents
- Example: 20250038519. DISTANCE PROTECTION OF A TRANSMISSION LINE (Hitachi Energy Ltd)
- G01R31/52 (MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits)
- Count: 1 patents
- Example: 20250038519. DISTANCE PROTECTION OF A TRANSMISSION LINE (Hitachi Energy Ltd)
- H02H7/26 (Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured (locating faults in cables)
- Count: 1 patents
- Example: 20250038519. DISTANCE PROTECTION OF A TRANSMISSION LINE (Hitachi Energy Ltd)
Emerging Technology Areas
- H01H31/003 (Air-break switches for high tension without arc-extinguishing or arc-preventing means (in combination with high tension or heavy-current switches with arc-extinguishing or arc-preventing means)
- Count: 1 patents
- Example: 20250104946. FAST EARTHING SWITCH FOR INTERRUPTING NON-SHORT-CIRCUIT CURRENTS (Hitachi Energy Ltd)
- H01H3/605 (ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables)
- Count: 1 patents
- Example: 20250104946. FAST EARTHING SWITCH FOR INTERRUPTING NON-SHORT-CIRCUIT CURRENTS (Hitachi Energy Ltd)
- H01H33/91 (ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables)
- Count: 1 patents
- Example: 20250104946. FAST EARTHING SWITCH FOR INTERRUPTING NON-SHORT-CIRCUIT CURRENTS (Hitachi Energy Ltd)
- H01L29/7416 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 1 patents
- Example: 20250015172. SEMICONDUCTOR DEVICE AND METHOD FOR OPERATING A SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H01L29/1012 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 1 patents
- Example: 20250015172. SEMICONDUCTOR DEVICE AND METHOD FOR OPERATING A SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H01L29/083 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 1 patents
- Example: 20250015172. SEMICONDUCTOR DEVICE AND METHOD FOR OPERATING A SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H01L29/0696 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 1 patents
- Example: 20250015172. SEMICONDUCTOR DEVICE AND METHOD FOR OPERATING A SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H01L29/745 (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS)
- Count: 1 patents
- Example: 20250015172. SEMICONDUCTOR DEVICE AND METHOD FOR OPERATING A SEMICONDUCTOR DEVICE (Hitachi Energy Ltd)
- H01F27/29 (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES (ceramics based on ferrites)
- Count: 1 patents
- Example: 20250014805. MULTI-HELICAL WINDINGS FOR A TRANSFORMER (Hitachi Energy Ltd)
- H01F30/06 (MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES (ceramics based on ferrites)
- Count: 1 patents
- Example: 20250014805. MULTI-HELICAL WINDINGS FOR A TRANSFORMER (Hitachi Energy Ltd)
Top Inventors
- Gianpaolo ROMANO (3 patents)
- Fabian FISCHER (2 patents)
- Lluis SANTOLARIA (2 patents)
- ChunMing YUAN (2 patents)
- Juergen STEINKE (2 patents)
- Milad MALEKI (2 patents)
- Goran Eriksson (2 patents)
- Giovanni ALFIERI (2 patents)
- Arne SCHROEDER (1 patent)
- Michele LUVISOTTO (1 patent)
Patent Categories
Geographical Distribution of Inventors
Geographical Distribution of US Inventors
Categories:
- HITACHI ENERGY LTD
- Companies
- CPC H02B1/24
- CPC H01Q1/526
- CPC H01Q13/20
- CPC H02H3/405
- CPC G01R31/085
- CPC G01R31/52
- CPC H02H7/26
- CPC H01L23/473
- CPC H01L21/4882
- CPC G05B13/047
- CPC G05B13/027
- CPC H01L29/063
- CPC H01L29/0869
- CPC H01L29/1608
- CPC H01L29/7395
- CPC H01L29/7802
- CPC H02M7/797
- CPC H02M1/32
- CPC H02M3/33576
- CPC H02M1/0043
- CPC H02M3/33573
- CPC H01L23/5386
- CPC H01L21/4853
- CPC H01L25/0655
- CPC H01L24/48
- CPC H01L24/49
- CPC H01L2224/48175
- CPC H01L2224/49176
- CPC H02H7/1213
- CPC H02H7/268
- CPC H02J7/342
- CPC H02J7/007
- CPC H02J7/345
- CPC H02J2207/20
- CPC H02J2207/50
- CPC H02M1/36
- CPC H02M1/0064
- CPC H02M1/0074
- CPC H02M1/0077
- CPC H02M1/14
- CPC H02M3/33592
- CPC G01R31/62
- CPC H01F29/02
- CPC H01B7/0233
- CPC H01P1/02
- CPC H01C1/032
- CPC H01C7/12
- CPC H01F27/33
- CPC H01F27/327
- CPC H01F27/36
- CPC H01F7/064
- CPC G01N29/12
- CPC G01N2291/02863
- CPC H01H33/664
- CPC H01H71/02
- CPC H01H71/08
- CPC H02H9/04
- CPC H04B5/79
- CPC H04B5/48
- CPC H05K9/0007
- CPC H10D62/8325
- CPC H01L21/0475
- CPC H10D64/027
- CPC H01L21/02378
- CPC H01L21/02447
- CPC H01L21/02529
- CPC H01F27/303
- CPC H01F2027/348
- CPC H01F27/322
- CPC H01F27/323
- CPC H01F41/04
- CPC H01L23/46
- CPC F28F13/06
- CPC G05B19/042
- CPC G05B2219/2639
- CPC H01F27/2823
- CPC H01F27/2876
- CPC H01F27/324
- CPC H01F30/06
- CPC H01F27/29
- CPC H01L29/745
- CPC H01L29/0696
- CPC H01L29/083
- CPC H01L29/1012
- CPC H01L29/7416
- CPC H01H33/91
- CPC H01H3/605
- CPC H01H31/003
- Patent Trends by Company in 2025