Ryouichi Tanaka

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Communication system
- Patent number 9,319,910
- Issue date Apr 19, 2016
- Hitachi, Ltd.
- Yusuke Shomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Handover management apparatus, base station, and handover managemen...
- Patent number 8,923,866
- Issue date Dec 30, 2014
- Hitachi, Ltd.
- Ryouichi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
RF amplification device
- Patent number 7,928,802
- Issue date Apr 19, 2011
- Renesas Electronics Corporation
- Masami Ohnishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
RF amplifying device
- Patent number 7,825,731
- Issue date Nov 2, 2010
- Renesas Electronics Corporation
- Masami Ohnishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Positioning system, positioning method, and positioning server
- Patent number 7,379,744
- Issue date May 27, 2008
- Hitachi, Ltd.
- Tsuyoshi Tamaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS COMMUNICATION METHOD, TRACKING ERROR MANAGEMENT DEVICE, AN...
- Publication number 20140094171
- Publication date Apr 3, 2014
- Hitachi, Ltd
- Ryouichi TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION SYSTEM
- Publication number 20140064136
- Publication date Mar 6, 2014
- Hitachi, Ltd
- Yusuke SHOMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HANDOVER MANAGEMENT APPARATUS, BASE STATION, AND HANDOVER MANAGEMEN...
- Publication number 20130244658
- Publication date Sep 19, 2013
- Hitachi, Ltd
- Ryouichi TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RF AMPLIFICATION DEVICE
- Publication number 20100090767
- Publication date Apr 15, 2010
- Renesas Technology Corp.
- Masami Ohnishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RF AMPLIFYING DEVICE
- Publication number 20090085666
- Publication date Apr 2, 2009
- RENESAS TECHNOLOGY CORP.
- MASAMI OHNISHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Positioning system, positioning method, and positioning server
- Publication number 20050143092
- Publication date Jun 30, 2005
- Hitachi, Ltd.
- Tsuyoshi Tamaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE