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Inventor

Hidefumi Kasai

Inventor
Tokyo, JP

Overview

3→
Patents
1980–2003
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%
G04BMechanically-driven clocks or watches25%
G04GElectronic time-pieces25%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests25%
PatentTitleYear
6,517,339'Resin molding mold'20034,371,429'Timepiece hand manufacturing method'19834,221,112'Electronic watch with illumination device'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2003Patents assigned to CITIZEN WATCH CO LTD (3)· patent assignee history
1980–2003Based in Tokyo, JP· patent location history
1983Based in Tanashi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CITIZEN WATCH CO LTD31980–2003
Locations
LocationPatentsSpan
Tokyo, JP21980–2003
Tanashi, JP11983