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Kazutomo Takahashi
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Saitama, JP
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Patents Grants
last 30 patents
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Patent Grant
Combined oil ring
Patent number
9,528,606
Issue date
Dec 27, 2016
Nippon Piston Ring Co., Ltd.
Hideshi Hitosugi
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Combined steel oil control ring
Patent number
7,044,472
Issue date
May 16, 2006
Nippon Piston Ring Co., Ltd.
Akira Takahashi
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
COMBINED OIL RING
Publication number
20180051806
Publication date
Feb 22, 2018
NIPPON PISTON RING CO., LTD
Yasuyuki MURATA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
COMBINED OIL RING
Publication number
20140062030
Publication date
Mar 6, 2014
Nippon Piston Ring Co., Ltd.
Hideshi HITOSUGI
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Combined steel oil control ring
Publication number
20030090066
Publication date
May 15, 2003
Akira Takahashi
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...