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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Avalanche photodiode
Patent number
9,006,854
Issue date
Apr 14, 2015
NTT Electronics Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
8,754,445
Issue date
Jun 17, 2014
NTT Electronics Corporation
Tadao Ishibashi
G02 - OPTICS
Information
Patent Grant
Avalanche photodiode
Patent number
8,729,602
Issue date
May 20, 2014
NTT Electronics Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Avalanche photodiode
Patent number
8,575,650
Issue date
Nov 5, 2013
NTT Electronics Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Avalanche photodiode having doping region with monotonically increa...
Patent number
7,880,197
Issue date
Feb 1, 2011
NTT Electronics Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optoelectronic waveguide
Patent number
7,787,736
Issue date
Aug 31, 2010
NTT Electronics Corporation
Tadao Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor optoelectronic waveguide
Patent number
7,599,595
Issue date
Oct 6, 2009
NTT Electronics Corporation
Tadao Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Avalanche photodiode
Patent number
7,557,387
Issue date
Jul 7, 2009
Nippon Telegraph and Telephone Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Thin film deposition method of nitride semiconductor and nitride se...
Patent number
6,920,166
Issue date
Jul 19, 2005
Nippon Telegraph and Telephone Corporation
Tetsuya Akasaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic flux measuring method and apparatus for detecting high fre...
Patent number
5,537,038
Issue date
Jul 16, 1996
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for magnetically detecting defects in an objec...
Patent number
5,512,821
Issue date
Apr 30, 1996
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for magnetic inspection using magnetic shield, with speci...
Patent number
5,502,382
Issue date
Mar 26, 1996
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for magnetic inspection using magnetic shield
Patent number
5,357,198
Issue date
Oct 18, 1994
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Saturable core magnetometer with a parallel resonant circuit in whi...
Patent number
5,287,059
Issue date
Feb 15, 1994
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Magnetic inspection apparatus for thin steel strip having magnetize...
Patent number
5,235,275
Issue date
Aug 10, 1993
NKK Corporation
Seigo Ando
G01 - MEASURING TESTING
Information
Patent Grant
Recording medium playing apparatus
Patent number
5,151,793
Issue date
Sep 29, 1992
Pioneer Electronic Corporation
Hiroshi Ito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Current measuring method and apparatus therefor
Patent number
5,132,608
Issue date
Jul 21, 1992
Katsuyuki Nishifuji
Katsuyuki Nishifuji
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20130313608
Publication date
Nov 28, 2013
Nippon Telegraph and Telephone Corporation
Tadao Ishibashi
G02 - OPTICS
Information
Patent Application
AVALANCHE PHOTODIODE
Publication number
20130168793
Publication date
Jul 4, 2013
NTT ELECTRONICS CORPORATION
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AVALANCHE PHOTODIODE
Publication number
20130154045
Publication date
Jun 20, 2013
Nippon Telegraph and Telephone Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AVALANCHE PHOTODIODE
Publication number
20110241150
Publication date
Oct 6, 2011
NTT Electronics Corporation
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
AVALANCHE PHOTODIODE
Publication number
20100163925
Publication date
Jul 1, 2010
NTT ELECTRONICS CORPORATION
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor optoelectronic waveguide
Publication number
20080304786
Publication date
Dec 11, 2008
NTT ELECTRONICS CORPORATION
Tadao Ishibashi
G02 - OPTICS
Information
Patent Application
Avalanche Photodiode
Publication number
20070200141
Publication date
Aug 30, 2007
NTT ELECTRONICS CORPORATION
Tadao Ishibashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor optoelectronic waveguide
Publication number
20070172184
Publication date
Jul 26, 2007
Tadao Ishicashi
G02 - OPTICS
Information
Patent Application
Thin film deposition method of nitride semiconductor and nitride se...
Publication number
20030179793
Publication date
Sep 25, 2003
Nippon Telegraph and Telephone Corporation
Tetsuya Akasaka
H01 - BASIC ELECTRIC ELEMENTS