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Jun Tsuneyoshi
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Chiba, JP
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last 30 patents
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Patent Grant
Personal ornament and method for producing personal ornament
Patent number
11,618,930
Issue date
Apr 4, 2023
SEIKO WATCH KABUSHIKI KAISHA
Jun Tsuneyoshi
C21 - METALLURGY OF IRON
Information
Patent Grant
Magnetically insensitive, highly hard and constant-modulus alloy, a...
Patent number
8,684,594
Issue date
Apr 1, 2014
The Foundation: The Research Institute for Electric and Magnetic Materials
Yuetsu Murakami
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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Patent Application
HAIRSPRING, TIMEPIECE MOVEMENT, AND TIMEPIECE
Publication number
20230305493
Publication date
Sep 28, 2023
Seiko Watch Kabushiki Kaisha (trading as Seiko Watch Corporation)
Tomokazu EJIRI
G04 - HOROLOGY
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Patent Application
PERSONAL ORNAMENT AND METHOD FOR PRODUCING PERSONAL ORNAMENT
Publication number
20210198763
Publication date
Jul 1, 2021
SEIKO WATCH KABUSHIKI KAISHA
Jun TSUNEYOSHI
C21 - METALLURGY OF IRON
Information
Patent Application
MAGNETICALLY INSENSITIVE, HIGHLY HARD AND CONSTANT-MODULUS ALLOY, A...
Publication number
20110286312
Publication date
Nov 24, 2011
SEIKO INSTRUMENTS INC.
Yuetsu Murakami
C21 - METALLURGY OF IRON