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Inventor

Naoto Hitotsuyanagi

Inventor
Kanagawa, JP

Overview

2→
Patents
1991–2009
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Dprimary
B01DSeparation29%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations14%
C02FTreatment of water, waste water, sewage, or sludge14%
C11DDetergent compositions14%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
PatentTitleYear
7,540,292'Detergent for washing a selectively permeable membrane and method of washing'20095,043,072'Method of treating fluoride-containing water'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2009Patents assigned to KURITA WATER IND LTD (2)· patent assignee history
1991Based in Tokyo, JP· patent location history
2009Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KURITA WATER IND LTD21991–2009
Locations
LocationPatentsSpan
Kanagawa, JP12009
Tokyo, JP11991