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Koichi HATAKEYAMA
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Yamagata, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Cylinder liner and manufacturing method for same
Patent number
11,499,498
Issue date
Nov 15, 2022
TPR CO., LTD.
Yuki Kuromasa
B24 - GRINDING POLISHING
Information
Patent Grant
Cylinder liner for cast-covering, and method for manufacturing cyli...
Patent number
11,168,642
Issue date
Nov 9, 2021
TPR CO., LTD.
Koichi Hatakeyama
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cylinder liner for insert casting
Patent number
11,141,783
Issue date
Oct 12, 2021
TPR CO., LTD.
Yasutomo Tokairin
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cylinder liner, block manufacturing method and cylinder liner manuf...
Patent number
11,047,333
Issue date
Jun 29, 2021
TPR CO., LTD.
Akira Sato
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cylinder liner, block manufacturing method and cylinder liner manuf...
Patent number
10,876,494
Issue date
Dec 29, 2020
TPR CO., LTD.
Akira Sato
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cast-iron cylindrical member and composite structure
Patent number
10,596,624
Issue date
Mar 24, 2020
TPR CO., LTD.
Akira Sayama
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Cylindrical member made of flake graphite cast iron
Patent number
10,428,407
Issue date
Oct 1, 2019
TPR CO., LTD.
Koichi Hatakeyama
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
CYLINDER LINER AND MANUFACTURING METHOD FOR SAME
Publication number
20220025829
Publication date
Jan 27, 2022
TPR CO., LTD.
Yuki KUROMASA
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CYLINDER LINER FOR CAST-COVERING, AND METHOD FOR MANUFACTURING CYLI...
Publication number
20200398336
Publication date
Dec 24, 2020
TPR CO., LTD.
Koichi Hatakeyama
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Cylinder Liner, Block Manufacturing Method and Cylinder Liner Manuf...
Publication number
20200063685
Publication date
Feb 27, 2020
TPR CO., LTD.
Akira Sato
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Cylinder Liner, Block Manufacturing Method and Cylinder Liner Manuf...
Publication number
20200063684
Publication date
Feb 27, 2020
TPR CO., LTD.
Akira Sato
B22 - CASTING POWDER METALLURGY
Information
Patent Application
CAST-IRON CYLINDRICAL MEMBER AND COMPOSITE STRUCTURE
Publication number
20190358701
Publication date
Nov 28, 2019
TPR CO., LTD.
Akira SAYAMA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
CYLINDRICAL MEMBER MADE OF FLAKE GRAPHITE CAST IRON
Publication number
20190093203
Publication date
Mar 28, 2019
TPR CO., LTD.
Koichi HATAKEYAMA
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS