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Daisuke Ishiko
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical signal transmission system and magneto-optical modulator de...
Patent number
6,542,647
Issue date
Apr 1, 2003
Matsushita Electric Industrial Co., Ltd.
Hisashi Minemoto
G02 - OPTICS
Information
Patent Grant
Optical magnetic field sensor probe
Patent number
6,404,190
Issue date
Jun 11, 2002
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G02 - OPTICS
Information
Patent Grant
Optical magnetic field sensor probe
Patent number
6,370,288
Issue date
Apr 9, 2002
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G02 - OPTICS
Information
Patent Grant
Magneto-optical element
Patent number
6,333,809
Issue date
Dec 25, 2001
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G02 - OPTICS
Information
Patent Grant
Method for making a second-order nonlinear optical material, the ma...
Patent number
6,215,576
Issue date
Apr 10, 2001
Matsuhshita Electric Industrial Co., Ltd.
Hisashi Minemoto
G02 - OPTICS
Information
Patent Grant
Optical magnetic field sensor probe
Patent number
6,160,396
Issue date
Dec 12, 2000
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G02 - OPTICS
Information
Patent Grant
Optical sensor apparatus and signal processing circuit used therein...
Patent number
6,057,678
Issue date
May 2, 2000
Matsushita Electric Industrial Co., Ltd.
Satoshi Tagiri
G01 - MEASURING TESTING
Information
Patent Grant
Optical magnetic field sensor probe having drum lenses
Patent number
6,037,770
Issue date
Mar 14, 2000
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G02 - OPTICS
Information
Patent Grant
Optical fiber modulator having an optical fiber having a poled port...
Patent number
6,008,927
Issue date
Dec 28, 1999
Matsushita Electric Industrial Co., Ltd.
Hisashi Minemoto
G02 - OPTICS
Information
Patent Grant
Magneto-optical element and optical magnetic field sensor using the...
Patent number
5,835,257
Issue date
Nov 10, 1998
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G01 - MEASURING TESTING
Information
Patent Grant
Optical fiber sensor for measuring a magnetic field or electric cur...
Patent number
5,732,167
Issue date
Mar 24, 1998
Matsushita Electric Industrial Co., Ltd.
Daisuke Ishiko
G01 - MEASURING TESTING
Information
Patent Grant
Optical fiber sensors and method for making the same
Patent number
5,699,461
Issue date
Dec 16, 1997
Matsushita Electric Industrial Co., Ltd.
Hisashi Minemoto
G02 - OPTICS
Information
Patent Grant
Magneto-optical element and optical magnetic field sensor using the...
Patent number
5,691,837
Issue date
Nov 25, 1997
Matsushita Electric Industrial Co., Ltd.
Nobuki Itoh
G01 - MEASURING TESTING
Information
Patent Grant
Magnetic field measurement apparatus
Patent number
5,075,546
Issue date
Dec 24, 1991
Matsushita Electric Industrial Co., Ltd.
Osamu Kamada
G01 - MEASURING TESTING
Information
Patent Grant
Current and/or voltage detector for a distribution system
Patent number
4,999,571
Issue date
Mar 12, 1991
Matsushita Electric Industrial Co., Ltd.
Daisuke Ishiko
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Optical signal transmission system and magneto-optical modulator de...
Publication number
20020051279
Publication date
May 2, 2002
Hisashi Minemoto
G02 - OPTICS
Information
Patent Application
OPTICAL MAGNETIC FIELD SENSOR PROBE
Publication number
20020039462
Publication date
Apr 4, 2002
NOBUKI ITOH
G01 - MEASURING TESTING