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Tsutomu Katsura
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Mitaka-shi, Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Monitoring system
Patent number
11,821,583
Issue date
Nov 21, 2023
ECO FIRST CO., LTD.
Tsutomu Katsura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Nozzle-type steam trap
Patent number
11,480,295
Issue date
Oct 25, 2022
ECO FIRST CO., LTD.
Tsutomu Katsura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Nozzle-type steam trap
Patent number
11,242,954
Issue date
Feb 8, 2022
ECO FIRST CO., LTD.
Tsutomu Katsura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Pressurized with a fluid having a specific gravity greater than air
Patent number
5,083,596
Issue date
Jan 28, 1992
Hiroshi Kato
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
MONITORING SYSTEM
Publication number
20210071814
Publication date
Mar 11, 2021
ECO FIRST Co., Ltd.
Tsutomu KATSURA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
NOZZLE-TYPE STEAM TRAP
Publication number
20210003251
Publication date
Jan 7, 2021
ECO FIRST Co., Ltd.
Tsutomu KATSURA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
NOZZLE-TYPE STEAM TRAP
Publication number
20160146399
Publication date
May 26, 2016
ECO FIRST Co., Ltd.
TSUTOMU KATSURA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...