Naofumi Okubo

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Radar apparatus with a simplified construction
- Patent number 5,973,636
- Issue date Oct 26, 1999
- Fujitsu Ltd.
- Naofumi Okubo
- G01 - MEASURING TESTING
Information Patent Grant
Radar apparatus
- Patent number 5,940,029
- Issue date Aug 17, 1999
- Fujitsu Limited
- Teruhisa Ninomiya
- G01 - MEASURING TESTING
Information Patent Grant
Linear amplifier for amplifying a composite signal of plural freque...
- Patent number 5,455,538
- Issue date Oct 3, 1995
- Fujitsu Limited
- Kazuhiko Kobayashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Portable FM-CW radar device with frequency conversion by first and...
- Patent number 5,381,153
- Issue date Jan 10, 1995
- Fujitsu Limited
- Tamio Saito
- G01 - MEASURING TESTING
Information Patent Grant
Constant-amplitude wave combination type amplifier
- Patent number 5,287,069
- Issue date Feb 15, 1994
- Fujitsu Limited
- Naofumi Okubo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High frequency power amplifier with high efficiency and low distortion
- Patent number 5,264,807
- Issue date Nov 23, 1993
- Fujitsu Limited
- Naofumi Okubo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier circuit having feedback circuit
- Patent number 5,095,283
- Issue date Mar 10, 1992
- Fujitsu Limited
- Kazuhiko Kobayashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Liquid cooling type high frequency solid state device
- Patent number 4,796,155
- Issue date Jan 3, 1989
- Fujitsu Limited
- Toshiyuki Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cavity resonator coupling type power distributor/power combiner com...
- Patent number 4,686,494
- Issue date Aug 11, 1987
- Fujitsu Limited
- Yoshiaki Kaneko
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Microwave power distributing and synthesizing device and microwave...
- Patent number 4,598,254
- Issue date Jul 1, 1986
- Fujitsu Limited
- Toshiyuki Saito
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Device for distributing and combining microwave electric power
- Patent number 4,588,962
- Issue date May 13, 1986
- Fujitsu Limited
- Toshiyuki Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cavity resonator coupling-type power distributor/power combiner
- Patent number 4,562,409
- Issue date Dec 31, 1985
- Fujitsu Limited
- Toshiyuki Saito
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Channel assigning method and system for radio base station group
- Publication number 20070135150
- Publication date Jun 14, 2007
- FUJITSU LIMITED
- Kazumasa Ushiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Naofumi Okubo

Person

Patents Grantslast 30 patents

Radar apparatus with a simplified construction

Radar apparatus

Linear amplifier for amplifying a composite signal of plural freque...

Portable FM-CW radar device with frequency conversion by first and...

Constant-amplitude wave combination type amplifier

High frequency power amplifier with high efficiency and low distortion

Amplifier circuit having feedback circuit

Liquid cooling type high frequency solid state device

Cavity resonator coupling type power distributor/power combiner com...

Microwave power distributing and synthesizing device and microwave...

Device for distributing and combining microwave electric power

Cavity resonator coupling-type power distributor/power combiner

Patents Applicationslast 30 patents

Channel assigning method and system for radio base station group