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Inventor

Tomoaki Koyanagi

Inventor
Tokyo, JP

Overview

2→
Patents
2012–2015
Patent span
Textiles
Primary field (CPC D)

Patents· 2 as inventor

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

D21Cprimary
D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials22%
B01DSeparation11%
B03DFlotation11%
B41JTypewriters11%
C08BPolysaccharides11%
D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons11%
D21HPulp compositions11%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management11%
PatentTitleYear
9,139,662'Method for producing cellulose nanofibers'20158,181,790'Flotation apparatus'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2015Patents assigned to JUJO PAPER CO LTD (2)· patent assignee history
2012–2015Patents assigned to KOYANAGI TOMOAKI (2)· patent assignee history
2012Patents assigned to AIKAWA TEKKO (1)· patent assignee history
2012Patents assigned to AIKAWA YOSHIHIKO (1)· patent assignee history
2012–2015Based in Tokyo, JP· patent location history
2015Patents assigned to FUKAZAWA MASAHIKO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JUJO PAPER CO LTD22012–2015
KOYANAGI TOMOAKIself22012–2015
AIKAWA TEKKO12012
AIKAWA YOSHIHIKO12012
FUKAZAWA MASAHIKO12015
Locations
LocationPatentsSpan
Tokyo, JP22012–2015