Yoshinori Matsunaga

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Damping coefficient switching-type hydraulic damper
- Patent number 7,234,574
- Issue date Jun 26, 2007
- Kajima Corporation
- Yoshinori Matsunaga
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Attenuation coefficient switching type hydraulic damper
- Patent number 7,143,875
- Issue date Dec 5, 2006
- Kajima Corporation
- Yoshinori Matsunaga
- B60 - VEHICLES IN GENERAL
Information Patent Grant
High damping device for seismic response controlled structure
- Patent number 5,347,771
- Issue date Sep 20, 1994
- Kajima Corporation
- Takuji Kobori
- E04 - BUILDING
Information Patent Grant
Variable damping device for seismic response controlled structure
- Patent number 5,311,709
- Issue date May 17, 1994
- Kajima Corporation
- Takuji Kobori
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
ABRASIVE DIAMOND GRAIN FOR WIRE TOOL AND WIRE TOOL
- Publication number 20180215074
- Publication date Aug 2, 2018
- FURUKAWA ELECTRIC CO., LTD.
- Naoki Tanaka
- B24 - GRINDING POLISHING
Information Patent Application
Damping coefficient switching-type hydraulic damper
- Publication number 20060231359
- Publication date Oct 19, 2006
- Yoshinori Matsunaga
- B60 - VEHICLES IN GENERAL
Information Patent Application
Attenuation coefficient switching type hydraulic damper
- Publication number 20050016086
- Publication date Jan 27, 2005
- Yoshinori Matsunaga
- B60 - VEHICLES IN GENERAL