Yasuo Ookubo

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Tsukuba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silicon purification method and silicon purification device
- Patent number 8,778,143
- Issue date Jul 15, 2014
- Ulvac, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Silicon purification method
- Patent number 8,454,920
- Issue date Jun 4, 2013
- Ulvac, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Silicon purification method
- Patent number 8,409,319
- Issue date Apr 2, 2013
- Ulvac, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for refining metal
- Patent number 8,404,016
- Issue date Mar 26, 2013
- Ulvac, Inc.
- Yasuo Ookubo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
VACUUM PROCESSING APPARATUS
- Publication number 20240120233
- Publication date Apr 11, 2024
- Ulvac, Inc.
- Tetsushi Fujinaga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON PURIFICATION METHOD AND SILICON PURIFICATION DEVICE
- Publication number 20140075997
- Publication date Mar 20, 2014
- ULVAC, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SILICON REFINING DEVICE AND SILICON REFINING METHOD
- Publication number 20130247620
- Publication date Sep 26, 2013
- ULVAC, Inc.
- Yasuo OOKUBO
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SILICON PURIFICATION METHOD AND SILICON PURIFICATION DEVICE
- Publication number 20120181164
- Publication date Jul 19, 2012
- ULVAC, Inc.
- Yasuo Ookubo
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
SILICON PURIFICATION METHOD
- Publication number 20110132142
- Publication date Jun 9, 2011
- ULVAC, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SILICON PURIFICATION METHOD
- Publication number 20110135559
- Publication date Jun 9, 2011
- ULVAC, Inc.
- Yasuo Ookubo
- C01 - INORGANIC CHEMISTRY