Ryoji KAWAI

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fluid machine
- Patent number 11,149,734
- Issue date Oct 19, 2021
- Hitachi Industrial Equipment Systems Co., Ltd.
- Kotaro Chiba
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Air compressor
- Patent number 10,995,756
- Issue date May 4, 2021
- Hitachi, Ltd.
- Masanao Kotani
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Air compressor having an oil separator, an oil cooler, first and se...
- Patent number 10,920,760
- Issue date Feb 16, 2021
- Hitachi, Ltd.
- Masanao Kotani
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Air Compressor
- Publication number 20190242382
- Publication date Aug 8, 2019
- Hitachi, Ltd
- Masanao KOTANI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Fluid Machine
- Publication number 20190170143
- Publication date Jun 6, 2019
- HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
- Kotaro CHIBA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Air Compressor
- Publication number 20190136843
- Publication date May 9, 2019
- Hitachi, Ltd
- Ryoji KAWAI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Air Compressor
- Publication number 20190024651
- Publication date Jan 24, 2019
- Hitachi, Ltd
- Masanao KOTANI
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...