Takayuki Ichikawa

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Niigata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Combined oil control ring
- Patent number 10,352,446
- Issue date Jul 16, 2019
- Kabushiki Kaisha Riken
- Takayuki Ichikawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Combined oil control ring
- Patent number 10,247,306
- Issue date Apr 2, 2019
- Kabushiki Kaisha Riken
- Hiroshi Shimizu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Multi-piece oil ring
- Patent number 9,140,361
- Issue date Sep 22, 2015
- Kabushiki Kaisha Riken
- Junichi Takahashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
COMBINED OIL CONTROL RING
- Publication number 20180112775
- Publication date Apr 26, 2018
- Kabushiki Kaisha Riken
- Hiroshi SHIMIZU
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
COMBINED OIL CONTROL RING
- Publication number 20170350508
- Publication date Dec 7, 2017
- Kabushiki Kaisha Riken
- Takayuki ICHIKAWA
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
MULTI-PIECE OIL RING
- Publication number 20140021686
- Publication date Jan 23, 2014
- Kabushiki Kaisha Riken
- Junichi Takahashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...