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Inventor

Yoshio Yada

Inventor
Akita, JP

Overview

3→
Patents
1977–1998
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

B29Cprimary
B29CShaping or joining of plastics25%
G03GElectrography25%
G21CNuclear reactors25%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution25%
PatentTitleYear
5,837,413'Electrophotographic toner, and developer'19984,601,872'Water sealing device for use in replacing control rod drive housing'19864,053,143'Screw for use in an extruder'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to TORAY INDUSTRIES (1)· patent assignee history
1977Based in Otsu, JP· patent location history
1986Patents assigned to HITACHI LTD (1)· patent assignee history
1986Based in Hitachi, JP· patent location history
1998Patents assigned to TDK CORP (1)· patent assignee history
1998Based in Akita, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD11986
TDK CORP11998
TORAY INDUSTRIES11977
Locations
LocationPatentsSpan
Akita, JP11998
Hitachi, JP11986
Otsu, JP11977