LexDanaLexDanabeta
Inventor

Michiyo Yokoyama

Inventor
Yokohama, JP

Overview

2→
Patents
1986–1988
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 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. pigments33%
G03GElectrography33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
4,791,194'AZO compound photoreceptor having napthol substiuents'19884,618,555'Electrophotographic photoreceptor comprising azo compounds'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1988Patents assigned to MITSUBISHI CHEM IND (2)· patent assignee history
1986–1988Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI CHEM IND21986–1988
Locations
LocationPatentsSpan
Yokohama, JP21986–1988