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Toshiyuki Usagawa
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor gas sensor
Patent number
9,857,322
Issue date
Jan 2, 2018
Hitachi, Ltd.
Toshiyuki Usagawa
G01 - MEASURING TESTING
Information
Patent Grant
Semiconductor gas sensor and method for producing the same
Patent number
9,484,448
Issue date
Nov 1, 2016
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gas sensor and a method of manufacturing the same
Patent number
9,383,329
Issue date
Jul 5, 2016
Hitachi, Ltd.
Toshiyuki Usagawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Gas sensor
Patent number
9,228,973
Issue date
Jan 5, 2016
Hitachi, Ltd.
Toshiyuki Usagawa
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for electron spin resonance CT
Patent number
7,541,811
Issue date
Jun 2, 2009
Hitachi, Ltd.
Toshiyuki Usagawa
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for forming microstructure body
Patent number
5,746,826
Issue date
May 5, 1998
Hitachi, Ltd.
Tsuyoshi Hasegawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
PN-junction gate FET
Patent number
5,670,804
Issue date
Sep 23, 1997
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
5,567,961
Issue date
Oct 22, 1996
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Superconductized semiconductor device using penetrating Cooper pairs
Patent number
5,455,451
Issue date
Oct 3, 1995
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having a heterojunction and a two dimensional...
Patent number
5,381,027
Issue date
Jan 10, 1995
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method of producing the same
Patent number
5,373,191
Issue date
Dec 13, 1994
Hitachi Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical device with nanowhiskers
Patent number
5,332,910
Issue date
Jul 26, 1994
Hitachi, Ltd.
Keiichi Haraguchi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High speed logic circuit
Patent number
5,293,084
Issue date
Mar 8, 1994
Hitachi, Ltd.
Hiroyuki Itoh
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Semiconductor device having a two-dimensional electron gas as an ac...
Patent number
5,258,631
Issue date
Nov 2, 1993
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Quantum wave circuit
Patent number
5,233,205
Issue date
Aug 3, 1993
Hitachi, Ltd.
Toshiyuki Usagawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor device and method of producing the same
Patent number
5,181,087
Issue date
Jan 19, 1993
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and manufacturing method of the same
Patent number
4,805,005
Issue date
Feb 14, 1989
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,710,787
Issue date
Dec 1, 1987
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Heterojunction bipolar transistor
Patent number
4,683,487
Issue date
Jul 28, 1987
Hitachi, Ltd.
Kiichi Ueyanagi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device
Patent number
4,605,945
Issue date
Aug 12, 1986
Hitachi, Ltd.
Yoshifumi Katayama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR GAS SENSOR
Publication number
20160097731
Publication date
Apr 7, 2016
Hitachi, Ltd
Toshiyuki USAGAWA
G01 - MEASURING TESTING
Information
Patent Application
Semiconductor Gas Sensor And Method For Producing The Same
Publication number
20130313569
Publication date
Nov 28, 2013
Hitachi, Ltd
Toshiyuki USAGAWA
G01 - MEASURING TESTING
Information
Patent Application
GAS SENSOR AND A METHOD OF MANUFACTURING THE SAME
Publication number
20130186178
Publication date
Jul 25, 2013
Hitachi, Ltd
Toshiyuki Usagawa
B82 - NANO-TECHNOLOGY
Information
Patent Application
GAS SENSOR
Publication number
20120217550
Publication date
Aug 30, 2012
Hitachi, Ltd
Toshiyuki Usagawa
G01 - MEASURING TESTING
Information
Patent Application
Apparatus for Electron Spin Resonance CT
Publication number
20080061782
Publication date
Mar 13, 2008
TOSHIYUKI USAGAWA
G01 - MEASURING TESTING