Inventor
OKAJIMA YASUNOBU
JP19 patents
⚠️ This page may combine multiple inventors who share the name “OKAJIMA YASUNOBU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KUBOTA KK
12 patentsUS6287467B1Sep 11, 2001
Submerged membrane cartridge
KUBOTA KK32 citations92
US6843908B2Jan 18, 2005
Multistage immersion type membrane separator and high-concentration wastewater treatment facility using same
KUBOTA KK26 citations90
US8366929B2Feb 5, 2013
Spacing member, membrane element, and submerged membrane separation device
KUBOTA KK8 citations81
US10106440B2Oct 23, 2018
Membrane separation device
KUBOTA KK2 citations71
US10040701B2Aug 7, 2018
Membrane separation device
KUBOTA KK2 citations71
US6843470B2Jan 18, 2005
Air diffuser and flushing method thereof
KUBOTA KK6 citations61
US11452971B2Sep 27, 2022
Method for operating membrane separation device with halt process
KUBOTA KK0 citations51
US9873089B2Jan 23, 2018
Method for lifting membrane separation apparatus
KUBOTA KK0 citations49
US10328394B2Jun 25, 2019
Membrane cartridge and membrane-cartridge production method
KUBOTA KK0 citations48
US10071924B2Sep 11, 2018
Diffusion pipe and method for cleaning diffusion pipe
KUBOTA KK0 citations48
US11413583B2Aug 16, 2022
Filtering membrane cleaning method
KUBOTA KK0 citations47
US10549957B2Feb 4, 2020
Method for operating lifting set including lifting apparatus and water device
KUBOTA KK0 citations39