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Akira HIKONE
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Combination of piston rings, and combination structure of piston an...
Patent number
12,000,491
Issue date
Jun 4, 2024
TPR CO., LTD.
Hiroyuki Nagakura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method of manufacturing internal combustion engine, internal combus...
Patent number
10,837,399
Issue date
Nov 17, 2020
TPR CO., LTD.
Masami Horigome
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
OIL CONTROL RING
Publication number
20240141993
Publication date
May 2, 2024
TPR CO., LTD.
Akira HIKONE
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Compression Ring
Publication number
20240110625
Publication date
Apr 4, 2024
TPR CO., LTD.
Takashi Ozawa
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Combination of Piston Rings, and Combination Structure of Piston an...
Publication number
20230358313
Publication date
Nov 9, 2023
TPR CO., LTD.
Hiroyuki Nagakura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Combination of Piston Rings, and Combination Structure of Piston an...
Publication number
20230272854
Publication date
Aug 31, 2023
Hiroyuki Nagakura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
METHOD OF MANUFACTURING INTERNAL COMBUSTION ENGINE, INTERNAL COMBUS...
Publication number
20190277220
Publication date
Sep 12, 2019
TPR CO., LTD.
Masami HORIGOME
B22 - CASTING POWDER METALLURGY