Inventor

Koji Kutsuwa

Inventor
Tokyo, JP

Overview

6→
Patents
2009–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 6 as inventor

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

B41Mprimary
B41MPrinting, duplicating, marking, or copying processes20%
D21HPulp compositions20%
B41JTypewriters13%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties13%
C09DCoating compositions, e.g. paints, varnishes or lacquers13%
Y10TTechnical subjects covered by former us classification7%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2020Patents assigned to JUJO PAPER CO LTD (6)· patent assignee history
2009–2020Based in Tokyo, JP· patent location history
2013Patents assigned to KUTSUWA KOJI (2)· patent assignee history
2013Patents assigned to HARIMA CHEMICALS INC (1)· patent assignee history
2013Patents assigned to IIJIMA YUKO (1)· patent assignee history
2019–2020Patents assigned to KAO CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JUJO PAPER CO LTD62009–2020
KAO CORP22019–2020
KUTSUWA KOJIself22013
HARIMA CHEMICALS INC12013
IIJIMA YUKO12013
Locations
LocationPatentsSpan
Tokyo, JP62009–2020