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Masahide Okumura
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Sagamihara-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,583,431
Issue date
Jun 24, 2003
Hitachi, Ltd.
Hiroyuki Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,555,833
Issue date
Apr 29, 2003
Hitachi, Ltd.
Hiroyuki Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,509,572
Issue date
Jan 21, 2003
Hitachi, Ltd.
Hiroyuki Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,441,383
Issue date
Aug 27, 2002
Hitachi, Ltd.
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Electron beam exposure method and apparatus and semiconductor devic...
Patent number
6,403,973
Issue date
Jun 11, 2002
Hitachi, Ltd.
Hiroyuki Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,329,665
Issue date
Dec 11, 2001
Hitachi, Ltd.
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,320,198
Issue date
Nov 20, 2001
Hitachi, Ltd.
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,262,428
Issue date
Jul 17, 2001
Hitachi, Ltd.
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Method of fabricating semiconductor circuit devices utilizing multi...
Patent number
6,159,644
Issue date
Dec 12, 2000
Hitachi, Ltd.
Hidetoshi Satoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Charged particle beam lithography apparatus for forming pattern on...
Patent number
6,121,625
Issue date
Sep 19, 2000
Hitachi, Ltd.
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Electron beam writing system
Patent number
5,650,631
Issue date
Jul 22, 1997
Hitachi, Ltd.
Yasunari Sohda
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam exposure apparatus
Patent number
5,424,550
Issue date
Jun 13, 1995
Hitachi, Ltd.
Masamichi Kawano
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam exposure apparatus
Patent number
5,281,827
Issue date
Jan 25, 1994
Hitachi, Ltd.
Masamichi Kawano
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Piezoelectric actuator control apparatus
Patent number
4,841,191
Issue date
Jun 20, 1989
Hitachi, Ltd.
Keiji Takada
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam lithography system
Patent number
4,829,444
Issue date
May 9, 1989
Hitachi, Ltd.
Norio Saitou
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Mark position detection system for use in charged particle beam app...
Patent number
4,808,829
Issue date
Feb 28, 1989
Hitachi Ltd.
Masahide Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron beam exposure apparatus
Patent number
4,701,620
Issue date
Oct 20, 1987
Hitachi, Ltd.
Masahide Okumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electron beam lithography apparatus
Patent number
4,692,579
Issue date
Sep 8, 1987
Hitachi, Ltd.
Norio Saitou
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Charged particle beam microprobe apparatus
Patent number
4,670,652
Issue date
Jun 2, 1987
Hitachi, Ltd.
Mikio Ichihashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Small-dimension measurement system by scanning electron beam
Patent number
4,600,839
Issue date
Jul 15, 1986
Hitachi, Ltd.
Mikio Ichihashi
G01 - MEASURING TESTING
Information
Patent Grant
Electron beam control system
Patent number
4,437,008
Issue date
Mar 13, 1984
Nippon Telegraph & Telephone Public Corporation
Tadahito Matsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum valve apparatus
Patent number
4,099,704
Issue date
Jul 11, 1978
Hitachi, Ltd.
Masahide Okumura
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
SEM having D-C bias of video signal controlled by maximum and/or mi...
Patent number
4,099,054
Issue date
Jul 4, 1978
Hitachi, Ltd.
Masahide Okumura
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Charged particle beam lithography apparatus for forming pattern on...
Publication number
20020179856
Publication date
Dec 5, 2002
Hitachi, Ltd
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Application
Charged particle beam lithography apparatus for forming pattern on...
Publication number
20020100881
Publication date
Aug 1, 2002
Hiroyuki Ito
B82 - NANO-TECHNOLOGY
Information
Patent Application
Charged particle beam lithography apparatus for forming pattern on...
Publication number
20020096651
Publication date
Jul 25, 2002
Hiroyuki Ito
B82 - NANO-TECHNOLOGY