Kenji ARAI

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Saitama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Combined oil ring
- Patent number 10,724,636
- Issue date Jul 28, 2020
- Nippon Piston Ring Co., Ltd.
- Masataka Kawasaki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information 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...

Patents Applicationslast 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 20170227126
- Publication date Aug 10, 2017
- NIPPON PISTON RING CO., LTD
- Masataka KAWASAKI
- 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...