Ohkawara Kakohki Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 3131
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 129
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6703149 Method and apparatus for producing reformed hydrocarbon and hydrogen, engine installed with fuel cell, and energy stationDec 20, 01Mar 09, 04[H01M, C07C, B01J]
6042636 Method and apparatus of treating incinerator exhaust gasMar 17, 98Mar 28, 00[B01D]
5294298 Spray-drying granulation apparatusSep 29, 92Mar 15, 94[B01D]
5272820 Two-fluid pressure nozzle of upward injection type, spray dryer using the nozzle, and method for control of droplet diameter in the nozzleJul 03, 91Dec 28, 93[F26B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5499768 Spray nozzle unitExpiredNov 02, 94Mar 19, 96[B05B]
5232550 Vacuum drying methodExpiredSep 26, 91Aug 03, 93[B01D]
5227017 Spray drying apparatus equipped with a spray nozzle unitExpiredAug 06, 90Jul 13, 93[B01D]
5140756 Fluidized bed granulatorExpiredJan 25, 89Aug 25, 92[F26B]
5044093 Spray-drying granulation apparatusExpiredApr 25, 90Sep 03, 91[F26B]
5015332 Spray dryerExpiredJan 25, 89May 14, 91[F26B, B01D]
4943449 Microcapsules and process for producing themExpiredSep 01, 87Jul 24, 90[B01J]
4896436 Spray drying process and apparatus thereforExpiredApr 18, 88Jan 30, 90[F26B, B01D]
4809442 Spray drying process and apparatus thereforExpiredDec 29, 86Mar 07, 89[F26B]
4675236 Mono-core type microcapsules and process for producing themExpiredOct 30, 85Jun 23, 87[B01J, B32B]

Top Inventors for This Owner

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