Masaaki FUJITA

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Kashiwazaki-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piston ring
- Patent number 10,415,704
- Issue date Sep 17, 2019
- KABUSHIKI KAISHA RIKEN
- Masaaki Fujita
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Piston ring
- Patent number 10,352,445
- Issue date Jul 16, 2019
- KABUSHIKI KAISHA RIKEN
- Masaaki Fujita
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Combined oil control ring
- Patent number 9,618,115
- Issue date Apr 11, 2017
- Kabushiki Kaisha Riken
- Hiroyuki Yabune
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
PISTON RING
- Publication number 20200018395
- Publication date Jan 16, 2020
- Kabushiki Kaisha Riken
- Hiroshi SHIMIZU
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PISTON RING
- Publication number 20190049010
- Publication date Feb 14, 2019
- Kabushiki Kaisha Riken
- Masaaki FUJITA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PISTON RING
- Publication number 20180017159
- Publication date Jan 18, 2018
- Kabushiki Kaisha Riken
- Masaaki FUJITA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
PISTON RING
- Publication number 20160305545
- Publication date Oct 20, 2016
- Kabushiki Kaisha Riken
- Fumihiro OKAZAKI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
COMBINED OIL CONTROL RING
- Publication number 20150167844
- Publication date Jun 18, 2015
- Kabushiki Kaisha Riken
- Hiroyuki YABUNE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...