Inventor
HARUNA KAZUO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “HARUNA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEITETSU KAGAKU CO LTD
5 patentsUS4684377AAug 4, 1987
Process for producing oxygen-enriched gas
SEITETSU KAGAKU CO LTD58 citations95
US4661125AApr 28, 1987
Process for producing high concentration oxygen by a pressure-swing-adsorption method
SEITETSU KAGAKU CO LTD54 citations91
US4985052AJan 15, 1991
Process for producing high purity oxygen gas from air
SEITETSU KAGAKU CO LTD25 citations90
US4529412AJul 16, 1985
Process for obtaining high concentration argon by pressure-swing-adsorption
SEITETSU KAGAKU CO LTD44 citations90
US4713100ADec 15, 1987
Adsorption apparatus
SEITETSU KAGAKU CO LTD5 citations54
SUMITOMO SEIKA CHEMICALS
5 patentsUS4917710AApr 17, 1990
Process for recovering oxygen enriched gas
SUMITOMO SEIKA CHEMICALS57 citations94
US5505765AApr 9, 1996
Method and apparatus for separating nitrogen-enriched gas
SUMITOMO SEIKA CHEMICALS29 citations92
US5755856AMay 26, 1998
Process of recovering oxygen-enriched gas
SUMITOMO SEIKA CHEMICALS38 citations89
US4955998ASep 11, 1990
Process for separating gas
SUMITOMO SEIKA CHEMICALS14 citations73
US6663691B2Dec 16, 2003
Method of recovering enriched gaseous oxygen
SUMITOMO SEIKA CHEMICALS9 citations66