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Inventor

Keiji Sano

Inventor
Narashino, JP

Overview

2→
Patents
1992–2019
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
B01DSeparation33%
C02FTreatment of water, waste water, sewage, or sludge33%
G11BInformation storage based on relative movement between record carrier and transducer33%
PatentTitleYear
10,280,094Method and apparatus for treating urea aqueous solution20195,085,379'Method of controlling reel drive'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Patents assigned to NAKAMICHI CORP (1)· patent assignee history
1992Based in Futyu, JP· patent location history
2019Patents assigned to TOYO ENGINEERING CORP (1)· patent assignee history
2019Based in Narashino, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NAKAMICHI CORP11992
TOYO ENGINEERING CORP12019
Locations
LocationPatentsSpan
Narashino, JP12019
Futyu, JP11992