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Nobuyuki Fujiwara
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Ueda-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Piston for internal combustion engine
Patent number
11,111,877
Issue date
Sep 7, 2021
Art Metal Mfg. Co., Ltd.
Chiaki Taresawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for modifying surface of piston for internal combustion engi...
Patent number
9,995,242
Issue date
Jun 12, 2018
Art Metal Mfg Co., Ltd.
Nobuyuki Fujiwara
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for surface treatment of a skirt portion of a piston for an...
Patent number
8,430,020
Issue date
Apr 30, 2013
Art Metal Mfg Co., Ltd.
Nobuyuki Fujiwara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method for surface treatment of an internal combustion pistion and...
Patent number
8,231,741
Issue date
Jul 31, 2012
Art Metal Mfg Co., Ltd.
Nobuyuki Fujiwara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for surface treatment of an internal combustion piston and a...
Patent number
7,767,033
Issue date
Aug 3, 2010
Art Metal Mfg Co., Ltd.
Nobuyuki Fujiwara
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Patents Applications
last 30 patents
Information
Patent Application
PISTON FOR INTERNAL COMBUSTION ENGINE
Publication number
20190063604
Publication date
Feb 28, 2019
Art Metal Mfg. Co., Ltd.
Chiaki TARESAWA
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD FOR MODIFYING SURFACE OF PISTON FOR INTERNAL COMBUSTION ENGI...
Publication number
20150233320
Publication date
Aug 20, 2015
Art Metal Mfg. Co., Ltd.
Nobuyuki Fujiwara
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR SURFACE TREATMENT OF AN INTERNAL COMBUSTION PISTON AND A...
Publication number
20100275874
Publication date
Nov 4, 2010
Nobuyuki FUJIWARA
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
METHOD FOR SURFACE TREATMENT OF A SKIRT PORTION OF A PISTON FOR AN...
Publication number
20100083827
Publication date
Apr 8, 2010
ART METAL MFG CO., LTD.
Nobuyuki Fujiwara
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Method for surface treatment of an internal combustion piston and a...
Publication number
20080022962
Publication date
Jan 31, 2008
Nobuyuki Fujiwara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS