Masahiro UMEZAWA

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a hollow spring member
- Patent number 11,701,943
- Issue date Jul 18, 2023
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hollow coil spring and suspension device for vehicle
- Patent number 11,685,211
- Issue date Jun 27, 2023
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hollow coil spring and suspension device for vehicle
- Patent number 11,254,177
- Issue date Feb 22, 2022
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Suspension coil spring
- Patent number 10,358,008
- Issue date Jul 23, 2019
- NHK Spring Co., Ltd.
- Kenji Yamamotoya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Strut-type suspension and compression coil spring for suspension
- Patent number 9,713,946
- Issue date Jul 25, 2017
- NHK Spring Co., Ltd.
- Kenji Yamamotoya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Suspension and compression coil spring for suspension
- Patent number 9,463,676
- Issue date Oct 11, 2016
- NHK Spring Co., Ltd.
- Kenji Yamamotoya
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Compression coil spring device having a discrete support
- Patent number 7,963,510
- Issue date Jun 21, 2011
- NHK Spring Co., Ltd.
- Masahiro Umezawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING A HOLLOW SPRING MEMBER
- Publication number 20220203800
- Publication date Jun 30, 2022
- NHK Spring Co., Ltd.
- Masahiro UMEZAWA
- B60 - VEHICLES IN GENERAL
Information Patent Application
HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE
- Publication number 20220041027
- Publication date Feb 10, 2022
- NHK Spring Co., Ltd.
- Masahiro UMEZAWA
- B60 - VEHICLES IN GENERAL
Information Patent Application
HOLLOW SPRING MEMBER
- Publication number 20190030979
- Publication date Jan 31, 2019
- NHK Spring Co., Ltd.
- Masahiro UMEZAWA
- C21 - METALLURGY OF IRON
Information Patent Application
HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE
- Publication number 20190030973
- Publication date Jan 31, 2019
- NHK Spring Co., Ltd.
- Masahiro UMEZAWA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SUSPENSION COIL SPRING
- Publication number 20160046164
- Publication date Feb 18, 2016
- NHK Spring Co., Ltd.
- Kenji YAMAMOTOYA
- B60 - VEHICLES IN GENERAL
Information Patent Application
STRUT-TYPE SUSPENSION AND COMPRESSION COIL SPRING FOR SUSPENSION
- Publication number 20150251514
- Publication date Sep 10, 2015
- NHK Spring Co., Ltd.
- Kenji YAMAMOTOYA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SUSPENSION AND COMPRESSION COIL SPRING FOR SUSPENSION
- Publication number 20150231939
- Publication date Aug 20, 2015
- NHK Spring Co., Ltd.
- Kenji YAMAMOTOYA
- B60 - VEHICLES IN GENERAL
Information Patent Application
Compression coil spring device having a discrete support
- Publication number 20070176340
- Publication date Aug 2, 2007
- Masahiro Umezawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Compression coil spring device having discontinuous support structure
- Publication number 20050051937
- Publication date Mar 10, 2005
- Masahiro Umezawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Masahiro UMEZAWA

Person

Patents Grantslast 30 patents

Method of manufacturing a hollow spring member

Hollow coil spring and suspension device for vehicle

Hollow coil spring and suspension device for vehicle

Suspension coil spring

Strut-type suspension and compression coil spring for suspension

Suspension and compression coil spring for suspension

Compression coil spring device having a discrete support

Patents Applicationslast 30 patents

METHOD OF MANUFACTURING A HOLLOW SPRING MEMBER

HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE

HOLLOW SPRING MEMBER

HOLLOW COIL SPRING AND SUSPENSION DEVICE FOR VEHICLE

SUSPENSION COIL SPRING

STRUT-TYPE SUSPENSION AND COMPRESSION COIL SPRING FOR SUSPENSION

SUSPENSION AND COMPRESSION COIL SPRING FOR SUSPENSION

Compression coil spring device having a discrete support

Compression coil spring device having discontinuous support structure