Masao Tokita

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Patents Grantslast 30 patents

Information Patent Grant
Electric joining method and apparatus and a joined unit of members
- Patent number 6,899,265
- Issue date May 31, 2005
- Sumitomo Coal Mining Co., Ltd.
- Yoshito Miyasaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for automatically loading powder material into a mold
- Patent number 6,881,048
- Issue date Apr 19, 2005
- Sumitomo Coal Mining Co., Ltd.
- Masao Tokita
- B30 - PRESSES
Information Patent Grant
Method for preparing eutectic ceramics
- Patent number 6,592,798
- Issue date Jul 15, 2003
- Sumitomo Coal Mining Co., Ltd.
- Mamoru Omori
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Electric joining method and apparatus and a joined unit of members
- Patent number 6,515,250
- Issue date Feb 4, 2003
- Sumitomo Coal Mining Co., Ltd.
- Yoshito Miyasaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and system for automatic electrical sintering
- Patent number 6,383,446
- Issue date May 7, 2002
- Sumitomo Coal Mining Co., Ltd.
- Masao Tokita
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for automatically loading powder material into...
- Publication number 20050089436
- Publication date Apr 28, 2005
- SUMITOMO COAL MINING CO., LTD.
- Masao Tokita
- B30 - PRESSES
Information Patent Application
Electric joining method and apparatus and a joined unit of members
- Publication number 20030106877
- Publication date Jun 12, 2003
- SUMITOMO COAL MINING CO., LTD.
- Yoshito Miyasaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric joining method and apparatus and a joined unit of members
- Publication number 20020011468
- Publication date Jan 31, 2002
- SUMITOMO COAL MINING CO., LTD.
- Yoshito Miyasaka
- C21 - METALLURGY OF IRON