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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Super heat-resisting Mo-based alloy and method of producing same
Patent number
6,210,497
Issue date
Apr 3, 2001
Doryokuro Kakunenryo Kaihatsu Jigyodan
Junichi Saito
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Object search method and object search system
Patent number
6,072,495
Issue date
Jun 6, 2000
Doryokuro Kakunenryo Kaihatsu Jigyodan
Kenshiu Watanabe
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiple-sheathed sodium leakage detection apparatus
Patent number
6,067,337
Issue date
May 23, 2000
Doryokuro Kakunenryo Kaihatsu Jigyodan
Nobumi Ohyama
G01 - MEASURING TESTING
Information
Patent Grant
Radioactive rays detection semiconductor device
Patent number
6,020,619
Issue date
Feb 1, 2000
Doryokuro Kakunenryo Kaihatsu Jigyodan
Takao Wada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of decomposing CMPO
Patent number
5,965,003
Issue date
Oct 12, 1999
Doryokuro Kakunenryo Kaihatsu Jigyodan
Masaki Ozawa
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Packer type groundwater sampling system and water sampling method
Patent number
5,896,926
Issue date
Apr 27, 1999
Doryokuro Kakunenryo Kaihatsu Jigyodan
Katsuhiro Hama
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Indirectly-cooled plasma jet torch
Patent number
5,880,426
Issue date
Mar 9, 1999
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yasutaka Fukui
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Metal-encapsulated fullerene compound and a method of synthesizing...
Patent number
5,869,626
Issue date
Feb 9, 1999
Doryokuro Kakunenryo Kaihatsu Jigyodan
Kazunori Yamamoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for determining photonuclear reaction cross section and tran...
Patent number
5,859,436
Issue date
Jan 12, 1999
Doryokuro Kakunenryo Kaithatsu Jigyodan
Hideo Harada
G01 - MEASURING TESTING
Information
Patent Grant
Multipurpose optical sensor
Patent number
5,838,843
Issue date
Nov 17, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Shinichi Aose
G01 - MEASURING TESTING
Information
Patent Grant
Electromagnetic rotary vibrator and damper for a rotary body
Patent number
5,834,867
Issue date
Nov 10, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Kiyotaka Kikuchi
G01 - MEASURING TESTING
Information
Patent Grant
Method for solidifying waste containing radioactive iodine
Patent number
5,826,203
Issue date
Oct 20, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Masahiro Fukumoto
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Hydraulic test system mounted with borehole television set for simu...
Patent number
5,767,400
Issue date
Jun 16, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Katsushi Nakano
E21 - EARTH DRILLING MINING
Information
Patent Grant
High-Ni austenitic stainless steel having excellent high-temperatur...
Patent number
5,753,177
Issue date
May 19, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Masahiko Morinaga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for treatment of radioactive waste
Patent number
5,744,020
Issue date
Apr 28, 1998
Douryokuro Kakunenryo Kaihatsu Jigyoudan
Takao Akiyama
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Vertical seismic isolation structure of common deck system for nucl...
Patent number
5,740,216
Issue date
Apr 14, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Masaki Morishita
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Thermal expansion-absorbing structure for pipe arrangement
Patent number
5,732,983
Issue date
Mar 31, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Takashi Nagata
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and apparatus for evaluating vibrations of a rotary body whi...
Patent number
5,717,141
Issue date
Feb 10, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Kiyotaka Kikuchi
G01 - MEASURING TESTING
Information
Patent Grant
Metal-encapsulated fullerene derivative compound of and method for...
Patent number
5,717,076
Issue date
Feb 10, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Kazunori Yamamoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of separating trivalent actinides and rare earth elements
Patent number
5,708,958
Issue date
Jan 13, 1998
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yoshikazu Koma
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Thermal design method for structures and optimum numerical calculat...
Patent number
5,699,284
Issue date
Dec 16, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Toshiharu Muramatsu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for dissolving nuclear fuels
Patent number
5,678,167
Issue date
Oct 14, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yukio Wada
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Hydrogen generating method using gamma rays
Patent number
5,650,051
Issue date
Jul 22, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yukio Wada
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for melt-decontaminating metal contaminated with radioactive...
Patent number
5,640,710
Issue date
Jun 17, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Hiroaki Kobayashi
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Method for detecting failure of nuclear reactor fuel
Patent number
5,638,414
Issue date
Jun 10, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yuji Enokido
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Diving bell type control rod equipped with sodium inflow port
Patent number
5,629,965
Issue date
May 13, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Tomonori Soga
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information
Patent Grant
Fitting structure of rectangular parallelopipedal blocks
Patent number
5,617,691
Issue date
Apr 8, 1997
Doryokuro Kakunenryo Kaihatsu Jigyodan
Ken Yamamoto
E04 - BUILDING
Information
Patent Grant
In-furnace inspection machine utilizing a double-walled structure
Patent number
5,594,548
Issue date
Jan 14, 1997
Kawasaki Jukogyo Kabushiki Kaisha
Hiroaki Kobayashi
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Continuous denitration apparatus
Patent number
5,589,140
Issue date
Dec 31, 1996
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yoshiharu Takahashi
F26 - DRYING
Information
Patent Grant
Method of coextracting neptunium and plutonium
Patent number
5,585,043
Issue date
Dec 17, 1996
Doryokuro Kakunenryo Kaihatsu Jigyodan
Yukio Wada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Trademark
last 30 trademarks