LexDanaLexDanabeta
Inventor

Utako Takeda

Inventor
Kanagawa, JP

Overview

3→
Patents
2014–2015
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments20%
C09DCoating compositions, e.g. paints, varnishes or lacquers20%
G02BOptical elements, systems or apparatus20%
C07DHeterocyclic compounds13%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein13%
B41JTypewriters7%
G09FDisplaying7%
PatentTitleYear
9,200,171'AZO compound and ink containing the compound'20158,999,050'Ink containing anthraquinone based dye, dye used in the ink, and display'20158,747,537'Ink containing heterocyclic azo dye, and dye for use in said ink'2014

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2014–2015Patents assigned to MITSUBISHI CHEM CORP (3)· patent assignee history
2014–2015Based in Kanagawa, JP· patent location history
2015Patents assigned to ISHIDA MIO (1)· patent assignee history
2015Patents assigned to KADOWAKI MASAMI (1)· patent assignee history
2015Patents assigned to SHIGA YASUSHI (1)· patent assignee history
2015Patents assigned to TAKEDA UTAKO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI CHEM CORP32014–2015
ISHIDA MIO12015
KADOWAKI MASAMI12015
SHIGA YASUSHI12015
TAKEDA UTAKOself12015
Locations
LocationPatentsSpan
Kanagawa, JP32014–2015