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Akihiro NAGANO
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Gojo-shi, Nara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Operation device for liquid leakage prediction system
Patent number
D993794
Issue date
Aug 1, 2023
VALQUA, LTD.
Akira Ueda
D10 - Measuring, testing, or signalling instruments
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Patent Grant
Operation device for liquid leakage prediction system
Patent number
D968249
Issue date
Nov 1, 2022
VALQUA, LTD.
Akira Ueda
D10 - Measuring, testing, or signalling instruments
Information
Patent Grant
Arrangement structure for seal member
Patent number
11,221,072
Issue date
Jan 11, 2022
VALQUA, LTD.
Katsuhisa Umeda
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Split seal ring
Patent number
10,907,736
Issue date
Feb 2, 2021
VALQUA, LTD.
Mitsuru Minami
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
ARRANGEMENT STRUCTURE FOR SEAL MEMBER
Publication number
20200072354
Publication date
Mar 5, 2020
VALQUA, LTD.
Katsuhisa UMEDA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
SPLIT SEAL RING
Publication number
20190203841
Publication date
Jul 4, 2019
NIPPON VALQUA INDUSTRIES, LTD.
Mitsuru MINAMI
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...