Inventor

Kazuki Ishii

Inventor

Tokyo, JP

Overview

9→

Patents

2003–2021

Patent span

Performing operations

Primary field (CPC B)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B01Dprimary

B01DSeparation24%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein18%

C02FTreatment of water, waste water, sewage, or sludge12%

C11DDetergent compositions12%

B03DFlotation6%

B08BCleaning in general6%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%

D02GCrimping or curling fibres, filaments, threads, or yarns6%

H01JElectric discharge tubes or discharge lamps6%

Y02ATechnologies for adaptation to climate change6%

PatentTitleYear

11,077,403Water treatment method2021 10,780,400Agent, liquid, and method for cleaning reverse osmosis membrane2020 10,737,221Scale inhibitor for reverse osmosis membranes and reverse osmosis membrane treatment method2020 10,443,023Alkaline cleaning liquid comprising urea and/or biuret, and cleaning method for reverse osmosis membrane2019 9,568,795'Liquid crystal display device'2017 9,170,463'Liquid crystal display device'2015 8,563,982'Liquid crystal display device'2013 6,725,639'Yarn texturing device, yarn texturing method and winding package employing quality indicating function'2004 6,548,954'Color cathode ray tube with black matrix holes having different diameters'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003Patents assigned to HITACHI LTD (1)· patent assignee history

2003–2017Based in Sakura, JP· patent location history

2004Based in Uji, JP· patent location history

2013Patents assigned to HITACHI DISPLAYS LTD (1)· patent assignee history

2013Patents assigned to ISHII KAZUKI (1)· patent assignee history

2015–2017Patents assigned to JAPAN DISPLAY INC (2)· patent assignee history

2019–2021Patents assigned to KURITA WATER IND LTD (4)· patent assignee history

2019–2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KURITA WATER IND LTD	4	2019–2021
JAPAN DISPLAY INC	2	2015–2017
HITACHI DISPLAYS LTD	1	2013
HITACHI LTD	1	2003
ISHII KAZUKIself	1	2013

Locations

Location	Patents	Span
Tokyo, JP	4	2019–2021
Sakura, JP	4	2003–2017
Uji, JP	1	2004