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Koji Ishii
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
LED illumination device having light reflecting and transmitting me...
Patent number
11,221,112
Issue date
Jan 11, 2022
ABRAM CORPORATION
Hidetoshi Mitsuzuka
F21 - LIGHTING
Information
Patent Grant
Apparatus for displaying damping effect or base isolation effect
Patent number
5,576,971
Issue date
Nov 19, 1996
Kajima Corporation
Koji Ishii
E04 - BUILDING
Information
Patent Grant
Anti-earthquake bearing apparatus
Patent number
5,353,559
Issue date
Oct 11, 1994
Bridgestone Corp.
Nobuo Murota
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
High damping device for seismic response controlled structure
Patent number
5,347,771
Issue date
Sep 20, 1994
Kajima Corporation
Takuji Kobori
E04 - BUILDING
Information
Patent Grant
Safety monitoring method for use in active seismic response and win...
Patent number
5,193,323
Issue date
Mar 16, 1993
Kajima Corporation
Koji Ishii
E04 - BUILDING
Information
Patent Grant
Elasto-plastic damper
Patent number
5,177,915
Issue date
Jan 12, 1993
Kajima Corporation
Takuju Kobori
E04 - BUILDING
Information
Patent Grant
Cylinder lock device for use in structure
Patent number
5,147,018
Issue date
Sep 15, 1992
Kajima Corporation
Takuji Kobori
E04 - BUILDING
Information
Patent Grant
Vibration absorbing device for structure
Patent number
5,097,547
Issue date
Mar 24, 1992
Kajima Corporation
Naoki Tanaka
E04 - BUILDING
Information
Patent Grant
Elasto-plastic damper
Patent number
5,065,555
Issue date
Nov 19, 1991
Kajima Corporation
Takuji Kobori
E04 - BUILDING
Information
Patent Grant
Variable damping and stiffness structure
Patent number
5,036,633
Issue date
Aug 6, 1991
Kajima Corporation
Takuji Kobori
E04 - BUILDING
Information
Patent Grant
Compound seismic response and wind control system
Patent number
5,025,599
Issue date
Jun 25, 1991
Kajima Corporation
Koji Ishii
E04 - BUILDING
Information
Patent Grant
Apparatus for accelerating response time of active mass damper eart...
Patent number
5,022,201
Issue date
Jun 11, 1991
Kajima Corporation
Takuji Kobori
E04 - BUILDING
Information
Patent Grant
Elasto-plastic damper
Patent number
4,901,486
Issue date
Feb 20, 1990
Kajima Corporation
Takuju Kobori
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
LIGHT-EMITTING DIODE-TYPE ILLUMINATION DEVICE
Publication number
20200141544
Publication date
May 7, 2020
ABRAM Corporation
Hidetoshi Mitsuzuka
F21 - LIGHTING