Kazunori Kurahashi

Person

Hadano-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing engine valve intermediate product with boss...
- Patent number 11,285,570
- Issue date Mar 29, 2022
- NITTAN VALVE CO., LTD.
- Atsuyuki Ichimiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Poppet valve and method for manufacturing same
- Patent number 10,473,002
- Issue date Nov 12, 2019
- Nittan Valve Co., Ltd.
- Maiku Mikami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Ni-Cr-Co-based alloy having high-temperature corrosion resistance,...
- Patent number 9,441,287
- Issue date Sep 13, 2016
- Fukuda Metal Foil & Powder Co., Ltd.
- Katsunori Otobe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Poppet valve with a formed seat, and method of making
- Patent number 9,371,915
- Issue date Jun 21, 2016
- Nittan Valve Co., Ltd.
- Maiku Mikami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-toughness cobalt-based alloy and engine valve coated with same
- Patent number 9,206,715
- Issue date Dec 8, 2015
- Fukuda Metal Foil & Powder Co., Ltd.
- Katsunori Otobe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Wear-resistant cobalt-based alloy and engine valve coated with same
- Patent number 9,206,319
- Issue date Dec 8, 2015
- Fukuda Metal Foil & Powder Co., Ltd.
- Katsunori Otobe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Poppet valve with a formed seat, and method of making
- Patent number 9,163,734
- Issue date Oct 20, 2015
- Nittan Valve Co., Ltd.
- Maiku Mikami
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing a valve for an internal combustion engine
- Patent number 9,015,940
- Issue date Apr 28, 2015
- Nittan Valve Co., Ltd.
- Kazunori Kurahashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing a valve for an internal combustion engine
- Patent number 8,978,248
- Issue date Mar 17, 2015
- Nittan Valve Co., Ltd.
- Kazunori Kurahashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Method of Manufacturing Engine Valve Intermediate Product with Boss...
- Publication number 20210245309
- Publication date Aug 12, 2021
- NITTAN VALVE CO., LTD.
- Atsuyuki ICHIMIYA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
POPPET VALVE AND METHOD FOR MANUFACTURING SAME
- Publication number 20170211434
- Publication date Jul 27, 2017
- NITTAN VALVE CO., LTD.
- Maiku MIKAMI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
POPPET VALVE
- Publication number 20160348546
- Publication date Dec 1, 2016
- NITTAN VALVE CO., LTD.
- Kazunori Kurahashi
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
POPPET VALVE WITH A FORMED SEAT, AND METHOD OF MAKING
- Publication number 20150300506
- Publication date Oct 22, 2015
- NITTAN VALVE CO., LTD.
- Maiku MIKAMI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Ni-Cr-Co-BASED ALLOY HAVING HIGH-TEMPERATURE CORROSION RESISTANCE,...
- Publication number 20150284828
- Publication date Oct 8, 2015
- Fukuda Metal Foil & Powder Co., Ltd.
- Katsunori Otobe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20150000130
- Publication date Jan 1, 2015
- NITTAN VALVE CO., LTD.
- Kazunori Kurahashi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20140283384
- Publication date Sep 25, 2014
- NITTAN VALVE CO., LTD.
- Kazunori Kurahashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
POPPET VALVE WITH A FORMED SEAT, AND METHOD OF MAKING
- Publication number 20140191150
- Publication date Jul 10, 2014
- NITTAN VALVE CO., LTD.
- Maiku MIKAMI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
HIGH-TOUGHNESS COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME
- Publication number 20130306019
- Publication date Nov 21, 2013
- Katsunori Otobe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
WEAR-RESISTANT COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME
- Publication number 20130221261
- Publication date Aug 29, 2013
- NITTAN VALVE CO., LTD.
- Katsunori Otobe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Kazunori Kurahashi

Person

Patents Grantslast 30 patents

Method of manufacturing engine valve intermediate product with boss...

Poppet valve and method for manufacturing same

Ni-Cr-Co-based alloy having high-temperature corrosion resistance,...

Poppet valve with a formed seat, and method of making

High-toughness cobalt-based alloy and engine valve coated with same

Wear-resistant cobalt-based alloy and engine valve coated with same

Poppet valve with a formed seat, and method of making

Method of manufacturing a valve for an internal combustion engine

Method of manufacturing a valve for an internal combustion engine

Patents Applicationslast 30 patents

Method of Manufacturing Engine Valve Intermediate Product with Boss...

POPPET VALVE AND METHOD FOR MANUFACTURING SAME

POPPET VALVE

POPPET VALVE WITH A FORMED SEAT, AND METHOD OF MAKING

Ni-Cr-Co-BASED ALLOY HAVING HIGH-TEMPERATURE CORROSION RESISTANCE,...

METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE

METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE

POPPET VALVE WITH A FORMED SEAT, AND METHOD OF MAKING

HIGH-TOUGHNESS COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME

WEAR-RESISTANT COBALT-BASED ALLOY AND ENGINE VALVE COATED WITH SAME