Seiji Nishi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circular waveguide antenna and circular waveguide array antenna
- Patent number 7,872,609
- Issue date Jan 18, 2011
- Oki Electric Industry Co., Ltd.
- Hok Huor Ou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Antenna with stripline splitter circuit
- Patent number 7,612,732
- Issue date Nov 3, 2009
- Oki Electric Industry Co., Ltd.
- Kei Takeishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal semiconductor FET having doped A1GaAs layer between channel l...
- Patent number 6,037,615
- Issue date Mar 14, 2000
- Oki Electric Industry Co., Ltd.
- Isamu Matsuyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave semiconductor device with via holes and associated structure
- Patent number 5,949,140
- Issue date Sep 7, 1999
- Oki Electric Industry Co., Ltd.
- Seiji Nishi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
WAVEGUIDE, METHOD OF MANUFACTURING WAVEGUIDE AND ANTENNA
- Publication number 20240213643
- Publication date Jun 27, 2024
- Waseda University
- Seiji NISHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circular waveguide antenna and circular waveguide array antenna
- Publication number 20100231475
- Publication date Sep 16, 2010
- Hok Huor Ou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Antenna with stripline splitter circuit
- Publication number 20080180329
- Publication date Jul 31, 2008
- Oki Electric Industry Co., Ltd.
- Kei Takeishi
- H01 - BASIC ELECTRIC ELEMENTS