Inventor
Kunihiro Hayakawa
Inventor
Tokyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation33%
C02FTreatment of water, waste water, sewage, or sludge33%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management10%
A01KAnimal husbandry5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
C11DDetergent compositions5%
Y02ATechnologies for adaptation to climate change5%
PatentTitleYear
10,307,713Agent and method for cleaning permeable membranes201910,252,219Method for operating reverse osmosis membrane device, and reverse osmosis membrane device201910,239,019Reverse-osmosis-membrane device and method for operating the same201910,046,280Method for improving rejection rate of reverse osmosis membrane20189,498,754'Method for improving rejection of reverse osmosis membrane, treatment agent for improving rejection, and reverse osmosis membrane'20169,156,001'Method and apparatus for further purifying ultrapure water'20158,025,159'Agent for increasing rejection with a permeable membrane, process for increasing the rejection, permeable membrane and process for water treatment'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2019Patents assigned to KURITA WATER IND LTD (7)· patent assignee history
2011Based in Hasuda, JP· patent location history
2015–2016Patents assigned to HAYAKAWA KUNIHIRO (2)· patent assignee history
2015Patents assigned to KOBAYASHI HIDEKI (1)· patent assignee history
2015–2019Based in Tokyo, JP· patent location history
2016Patents assigned to AOKI TETSUYA (1)· patent assignee history
2016Patents assigned to KAWAKATSU TAKAHIRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KURITA WATER IND LTD | 7 | 2011–2019 |
| HAYAKAWA KUNIHIROself | 2 | 2015–2016 |
| AOKI TETSUYA | 1 | 2016 |
| KAWAKATSU TAKAHIRO | 1 | 2016 |
| KOBAYASHI HIDEKI | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 6 | 2015–2019 |
| Hasuda, JP | 1 | 2011 |