Masahiro Dohi

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Hiroshima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hollow stepped shaft and method of forming the same
- Patent number 7,360,388
- Issue date Apr 22, 2008
- Kubota Iron Works Co., Ltd.
- Shigeaki Yamanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Electromagnetic coupling
- Patent number 7,172,059
- Issue date Feb 6, 2007
- Kubota Iron Works Co., Ltd.
- Shigeaki Yamanaka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Hollow stepped shaft and method of forming the same
- Patent number 7,171,837
- Issue date Feb 6, 2007
- Kubota Iron Works Co., Ltd.
- Shigeaki Yamanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of joining together magnetic and nonmagnetic materials
- Patent number 7,015,434
- Issue date Mar 21, 2006
- Kubota Iron Works Co., Ltd.
- Shigeaki Yamanaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Roll forming method and device
- Patent number 5,711,174
- Issue date Jan 27, 1998
- Mazda Motor Corporation
- Masahiro Dohi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Vibration-damping composite sheet steel
- Patent number 5,093,204
- Issue date Mar 3, 1992
- Nippon Kokan Kabushiki Kaisha
- Yukichi Watanabe
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
HOLLOW STEPPED SHAFT AND METHOD OF FORMING THE SAME
- Publication number 20080127704
- Publication date Jun 5, 2008
- KUBOTA IRON WORKS CO., LTD.
- Shigeaki Yamanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Hollow stepped shaft and method of forming the same
- Publication number 20070068215
- Publication date Mar 29, 2007
- KUBOTA IRON WORKS CO., LTD.
- Shigeaki Yamanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Electromagnetic coupling
- Publication number 20050061597
- Publication date Mar 24, 2005
- KUBOTA IRON WORKS CO., LTD.
- Shigeaki Yamanaka
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Hollow stepped shaft and method of forming the same
- Publication number 20050016246
- Publication date Jan 27, 2005
- KUBOTA IRON WORKS CO., LTD.
- Shigeaki Yamanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method of joining together magnetic and nonmagnetic materials
- Publication number 20040211773
- Publication date Oct 28, 2004
- KUBOTA IRON WORKS CO., LTD.
- Shigeaki Yamanaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR