Inventor
NAGAOKA TADAYOSHI
JP35 patents
⚠️ This page may combine multiple inventors who share the name “NAGAOKA TADAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAGAOKA KK
14 patentsUS5787980AAug 4, 1998
Well screen having a uniform outer diameter
NAGAOKA KK72 citations96
US5618424AApr 8, 1997
Rotary drum type device for separating solid particles from a liquid
NAGAOKA KK81 citations96
US5476143ADec 19, 1995
Well screen having slurry flow paths
NAGAOKA KK214 citations96
US5476588ADec 19, 1995
Multi-layer composite screen
NAGAOKA KK58 citations96
US6221320B1Apr 24, 2001
Device and method for holding catalyst in a radial flow reactor
NAGAOKA KK41 citations92
US5622625AApr 22, 1997
Method of manufacturing a drum
NAGAOKA KK24 citations92
US5415294AMay 16, 1995
Screen with a surface having projections or depressions
NAGAOKA KK24 citations92
US5311942AMay 17, 1994
Well screen having a protective frame for a horizontal or high-angle well
NAGAOKA KK39 citations92
US5307984AMay 3, 1994
Method of manufacturing a selective isolation screen
NAGAOKA KK41 citations92
US5246158ASep 21, 1993
Method of manufacturing a selective isolation screen
NAGAOKA KK22 citations92
US5858235AJan 12, 1999
Sludge dehydrating press having cylindrical inner screen case
NAGAOKA KK14 citations74
US5673726AOct 7, 1997
Method for weaving a multi-ply fabric packing with hexagonal cells
NAGAOKA KK11 citations74
US5643458AJul 1, 1997
Sludge dehydrating press and method for treating sludge
NAGAOKA KK12 citations74
US5377423AJan 3, 1995
Sludge dehydrating press and method for treating sludge
NAGAOKA KK12 citations74
(unassigned)
10 patentsUS6488842B2Dec 3, 2002
Filtering device
44 citations92
US6200467B1Mar 13, 2001
Filtering device with rotatable backwash tube
25 citations92
US6177006B1Jan 23, 2001
Filtering device
21 citations92
US6070739AJun 6, 2000
Filtering device
21 citations92
US5768851AJun 23, 1998
Structure unit
51 citations92
US5450898ASep 19, 1995
Gravity enhanced maintenance screen
22 citations92
US6536323B2Mar 25, 2003
Column packing and method for manufacturing the same
3 citations63
US6538225B1Mar 25, 2003
Column packing and method for manufacturing the same
4 citations63
US5901456AMay 11, 1999
Device for measuring distance between walls of coaxial cylindrical screens
2 citations63
US6481325B1Nov 19, 2002
Column packing and method for manufacturing the same
1 citations52
NAGAOKA KANAAMI KK
4 patentsUS4818403AApr 4, 1989
Double cylinder screen
NAGAOKA KANAAMI KK62 citations95
US5069279ADec 3, 1991
Well structure having a screen element with wire supporting rods
NAGAOKA KANAAMI KK22 citations92
US4578248AMar 25, 1986
Distributor/collector assembly
NAGAOKA KANAAMI KK23 citations81
US4366608AJan 4, 1983
Method for manufacturing fluid contacting device
NAGAOKA KANAAMI KK22 citations81