Masayuki Doi

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Minamiawaji-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Chuck device
- Patent number 10,967,471
- Issue date Apr 6, 2021
- Big Daishowa Co., Ltd.
- Masayuki Doi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hydraulic chuck
- Patent number 9,676,040
- Issue date Jun 13, 2017
- Daishowa Seiki Kabushiki Kaisha
- Masayuki Doi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
HYDRO CHUCK
- Publication number 20220331885
- Publication date Oct 20, 2022
- BIG DAISHOWA CO., LTD.
- Masayuki DOI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
CHUCK DEVICE
- Publication number 20200039015
- Publication date Feb 6, 2020
- BIG DAISHOWA CO., LTD.
- Masayuki DOI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
HYDRAULIC CHUCK
- Publication number 20160031015
- Publication date Feb 4, 2016
- DAISHOWA SEIKI KABUSHIKI KAISHA
- Masayuki DOI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Holder Device
- Publication number 20140197607
- Publication date Jul 17, 2014
- BIG DAISHOWA SEIKI CO LTD
- Masayuki Doi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR