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Patents Grants
last 30 patents
Information
Patent Grant
Notched insulation gate static induction transistor integrated circuit
Patent number
5,475,242
Issue date
Dec 12, 1995
Small Power Communication Systems Research Laboratories Co., Ltd.
Jun-ichi Nishizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Diversity radio receiver
Patent number
5,448,602
Issue date
Sep 5, 1995
Small Power Communication Systems Research Laboratories Co., Ltd.
Hideaki Ohmori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-frequency communication system with an improved diversity scheme
Patent number
5,369,800
Issue date
Nov 29, 1994
Small Power Communication Systems Research Laboratories Co., Ltd.
Tasuku Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Harmonic-frequency communication system with improved diversity scheme
Patent number
5,345,601
Issue date
Sep 6, 1994
Small Power Communication Systems Research Laboratories Co., Ltd.
Tasuku Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Temporary address system in a radio communication system
Patent number
5,345,474
Issue date
Sep 6, 1994
Small Power Communication Systems Research Laboratories Co., Ltd.
Toshiya Hoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system using movable radio terminals
Patent number
5,333,174
Issue date
Jul 26, 1994
Small Power Communications Systems Research Laboratories Co., Ltd.
Risaburo Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Space-division multiplex communication method of executing multiple...
Patent number
5,329,522
Issue date
Jul 12, 1994
Small Power Communication Systems Research Laboratories Co., Ltd.
Tasuku Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tungsten chemical vapor deposition method
Patent number
5,227,336
Issue date
Jul 13, 1993
Small Power Communication Systems Research Laboratories Co., Ltd.
Kiichi Hirano
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Convolutionally-encoded quadrature frequency-modulation system
Patent number
5,173,926
Issue date
Dec 22, 1992
Communications Research Laboratory, Ministry of Posts and Telecommunications
Ken Iwasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of manufacturing step cut type insulated gate SIT having low...
Patent number
5,169,795
Issue date
Dec 8, 1992
Small Power Communication Systems Research Laboratories Co., Ltd.
Jun-ichi Nishizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Private branch radio communication system using optical fibers
Patent number
5,159,479
Issue date
Oct 27, 1992
Small Power Communication Systems Research Laboratories Co., Ltd.
Tasuku Takagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Radiocommunication system using time-division digital frames
Patent number
5,124,985
Issue date
Jun 23, 1992
Small Power Communication Systems Research Laboratories Co., Ltd.
Toshiya Hoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Step cut type insulated gate SIT having low-resistance electrode an...
Patent number
5,060,029
Issue date
Oct 22, 1991
Small Power Communication Systems Research Laboratories Co., Ltd.
Jun-ichi Nishizawa
H01 - BASIC ELECTRIC ELEMENTS