Tomoyoshi Koyama

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Utsunomiya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fuel gas circulation apparatus
- Patent number 10,541,432
- Issue date Jan 21, 2020
- Honda Motor Co., Ltd.
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Solenoid valve
- Patent number 10,502,337
- Issue date Dec 10, 2019
- Honda Motor Co., Ltd.
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hydrogen injection apparatus
- Patent number 10,302,045
- Issue date May 28, 2019
- Honda Motor Co., Ltd.
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Valve apparatus
- Patent number 10,260,640
- Issue date Apr 16, 2019
- Honda Motor Co., Ltd.
- Koji Hakoda
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SOLENOID VALVE
- Publication number 20170248248
- Publication date Aug 31, 2017
- Honda Motor Co., Ltd.
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VALVE APPARATUS
- Publication number 20170248238
- Publication date Aug 31, 2017
- Honda Motor Co., Ltd.
- Koji Hakoda
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
FUEL GAS CIRCULATION APPARATUS
- Publication number 20170244116
- Publication date Aug 24, 2017
- Keihin Corporation
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HYDROGEN INJECTION APPARATUS
- Publication number 20170244118
- Publication date Aug 24, 2017
- Keihin Corporation
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FUEL GAS CIRCULATION APPARATUS
- Publication number 20170244119
- Publication date Aug 24, 2017
- Keihin Corporation
- Tomoyoshi Koyama
- H01 - BASIC ELECTRIC ELEMENTS