Masayoshi DOI

Follow

Person

Osaka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Engine device
- Patent number 11,428,177
- Issue date Aug 30, 2022
- YANMAR POWER TECHNOLOGY CO., LTD.
- Ryoichi Hagiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine device
- Patent number 11,111,866
- Issue date Sep 7, 2021
- YANMAR POWER TECHNOLOGY CO., LTD.
- Ryoichi Hagiwara
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Engine device
- Patent number 10,690,069
- Issue date Jun 23, 2020
- Yanmar Co., Ltd.
- Ryoichi Hagiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine device
- Patent number 10,393,035
- Issue date Aug 27, 2019
- Yanmar Co., Ltd.
- Ryoichi Hagiwara
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine device
- Patent number 10,378,461
- Issue date Aug 13, 2019
- Yanmar Co., Ltd.
- Ryoichi Hagiwara
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
ENGINE DEVICE
- Publication number 20210355886
- Publication date Nov 18, 2021
- Yanmar Power Technology Co., Ltd.
- Ryoichi HAGIWARA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE DEVICE
- Publication number 20200284213
- Publication date Sep 10, 2020
- Yanmar Co., Ltd.
- Ryoichi HAGIWARA
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
ENGINE DEVICE
- Publication number 20190085773
- Publication date Mar 21, 2019
- Yanmar Co., Ltd.
- Ryoichi HAGIWARA
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
ENGINE DEVICE
- Publication number 20180258868
- Publication date Sep 13, 2018
- Yanmar Co., Ltd.
- Ryoichi HAGIWARA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE DEVICE
- Publication number 20180252174
- Publication date Sep 6, 2018
- Yanmar Co., Ltd.
- Ryoichi HAGIWARA
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT