Nobuyuki NARISAWA

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Patents Grantslast 30 patents

Information Patent Grant
Compressor with piston ring arrangement on piston
- Patent number 12,116,996
- Issue date Oct 15, 2024
- Hitachi Industrial Equipment Systems Co., Ltd.
- Nobuyuki Narisawa
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
COMPRESSOR
- Publication number 20250188921
- Publication date Jun 12, 2025
- Hitachi Industrial Equipment Systems Co., Ltd.
- Kosuke SUDO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
COMPRESSOR
- Publication number 20250116267
- Publication date Apr 10, 2025
- Hitachi Industrial Equipment Systems Co., Ltd.
- Nobuyuki NARISAWA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Compressor
- Publication number 20220106950
- Publication date Apr 7, 2022
- Hitachi Industrial Equipment Systems Co., Ltd.
- Nobuyuki NARISAWA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Compressor
- Publication number 20220074399
- Publication date Mar 10, 2022
- HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
- Nobuyuki NARISAWA
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...