Hironobu SAYAMA

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow spring and method of manufacturing the same
- Patent number 12,135,068
- Issue date Nov 5, 2024
- Mitsubishi Steel Mfg. Co., Ltd.
- Hironobu Sayama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Hollow spring and manufacturing method thereof
- Patent number 10,987,779
- Issue date Apr 27, 2021
- MITSUBISHI STEEL MFG. CO., LTD.
- Hironobu Sayama
- B24 - GRINDING POLISHING
Information Patent Grant
Suspension coil spring
- Patent number 10,300,756
- Issue date May 28, 2019
- Mitsubishi Steel Mfg. Co., Ltd.
- Hironobu Sayama
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Suspension coil spring and strut type suspension
- Patent number 9,770,957
- Issue date Sep 26, 2017
- Mitsubishi Steel Mfg. Co., Ltd.
- Masanori Sano
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW SPRING AND METHOD OF MANUFACTURING THE SAME
- Publication number 20220170524
- Publication date Jun 2, 2022
- Mitsubishi Steel Mfg. Co., Ltd
- Hironobu SAYAMA
- B60 - VEHICLES IN GENERAL
Information Patent Application
HOLLOW SPRING AND METHOD FOR MANUFACTURING SAME
- Publication number 20200094376
- Publication date Mar 26, 2020
- MITSUBISHI STEEL MFG. CO., LTD.
- Hironobu Sayama
- B24 - GRINDING POLISHING
Information Patent Application
SUSPENSION COIL SPRING
- Publication number 20170050486
- Publication date Feb 23, 2017
- Mitsubishi Steel Mfg. Co., Ltd
- Hironobu SAYAMA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SUSPENSION COIL SPRING AND STRUT TYPE SUSPENSION
- Publication number 20160046165
- Publication date Feb 18, 2016
- Mitsubishi Steel Mfg. Co., Ltd
- Masanori SANO
- B60 - VEHICLES IN GENERAL