OITA UNIVERSITY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2107
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
H02M 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 2100
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
C22C ALLOYS 171
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 172
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 165

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0358,718 CAPACITOR ELECTRODE MATERIAL, METHOD FOR PRODUCING SAME, AND ELECTRIC DOUBLE LAYER CAPACITORDec 19, 14Dec 08, 16[H01G]
2015/0353,361 METHOD FOR PRODUCING RANDOM-STRUCTURE GIC, METHOD FOR PRODUCING EXFOLIATED GRAPHITE DISPERSION LIQUID, EXFOLIATED GRAPHITE DISPERSION LIQUID, AND EXFOLIATED GRAPHITEMar 04, 14Dec 10, 15[C01B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9919926 Method for producing random-structure GIC, method for producing exfoliated graphite dispersion liquid, exfoliated graphite dispersion liquid, and exfoliated graphiteMar 04, 14Mar 20, 18[C01B]
9673465 Catalyst, method for producing catalyst, and method for producing hydrogen-containing gas using catalyst, and hydrogen generating device, fuel cell system, and silicon-supported CeZr-based oxideMar 07, 13Jun 06, 17[C01B, H01M, B01J]
9294076 Switching power supply device and pulse width modulation circuit used thereinJul 19, 12Mar 22, 16[H03K, H02M]
8379421 Power factor correction converter with parallel-connected converter sectionsFeb 24, 10Feb 19, 13[H02M, G05F, B23F]
8278783 Power supply apparatusDec 22, 09Oct 02, 12[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0270,119 CARBONACEOUS MATERIAL, PROCESS FOR PRODUCING CARBONACEOUS MATERIAL, PROCESS FOR PRODUCING EXFOLIATED GRAPHITE, AND EXFOLIATED GRAPHITEAbandonedNov 28, 11Oct 17, 13[C01B, C25D]
2011/0227,546 DC-DC CONVERTERAbandonedOct 28, 09Sep 22, 11[G05F]

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