Japan National Oil Corporation

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing hydrocarbons by Fischer-Tropsch process
- Patent number 6,924,316
- Issue date Aug 2, 2005
- Japan National Oil Corporation
- Osamu Iwamoto
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Insert chip of oil-drilling tricone bit, manufacturing method there...
- Patent number 6,719,074
- Issue date Apr 13, 2004
- Japan National Oil Corporation
- Keiichi Tsuda
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for recovering core samples under pressure
- Patent number 6,659,204
- Issue date Dec 9, 2003
- Japan National Oil Corporation
- James T. Aumann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Bit apparatus
- Patent number 6,637,528
- Issue date Oct 28, 2003
- Japan National Oil Corporation
- Akio Nishiyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of measuring flow rates of respective fluids constituting mu...
- Patent number 6,467,358
- Issue date Oct 22, 2002
- Japan National Oil Corp.
- Tomomi Nishi
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic wave transmission system and method for transmitting an ac...
- Patent number 6,272,916
- Issue date Aug 14, 2001
- Japan National Oil Corporation
- Ryosuke Taniguchi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ship type floating oil production system
- Patent number 6,220,787
- Issue date Apr 24, 2001
- Japan National Oil Corporation
- Akio Tanabe
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Sealed neutron tube
- Patent number 6,141,395
- Issue date Oct 31, 2000
- Japan National Oil Corporation
- Kazuya Nishimura
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Shaft alignment
- Patent number 6,059,661
- Issue date May 9, 2000
- Japan National Oil Corporation
- Neil Andrew Abercrombie Simpson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Device for controlling the drilling direction of drill bit
- Patent number 5,875,859
- Issue date Mar 2, 1999
- Japan National Oil Corporation
- Akio Ikeda
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for determining density of an earth formation
- Patent number 5,804,820
- Issue date Sep 8, 1998
- Schlumberger Technology Corporation
- Michael L. Evans
- G01 - MEASURING TESTING
Information Patent Grant
Method for oxidative coupling of methane comprising catalytic cracking
- Patent number 5,750,821
- Issue date May 12, 1998
- Japan National Oil Corporation
- Makoto Inomata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Apparatus for oxidative coupling of methane
- Patent number 5,736,107
- Issue date Apr 7, 1998
- Japan National Oil Corporation
- Makoto Inomata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Information transmitting apparatus using tube body
- Patent number 5,675,325
- Issue date Oct 7, 1997
- Japan National Oil Corporation
- Ryosuke Taniguchi
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Organic substance analyzing method and apparatus using portable con...
- Patent number 5,389,550
- Issue date Feb 14, 1995
- Japan National Oil Corporation
- Shigeaki Ishida
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for measuring steam density by neutron method
- Patent number 5,327,773
- Issue date Jul 12, 1994
- Japan National Oil Corporation
- Tatsuo Nishimura
- E21 - EARTH DRILLING MINING
Information Patent Grant
Receiving apparatus
- Patent number 5,189,415
- Issue date Feb 23, 1993
- Japan National Oil Corporation
- Takashi Shimada
- E21 - EARTH DRILLING MINING
Information Patent Grant
Submersible optical wet connector
- Patent number 4,828,353
- Issue date May 9, 1989
- Japan National Oil Corp.
- Masayoshi Yamaguchi
- G02 - OPTICS
Information Patent Grant
Swivel joint for fluid pipes
- Patent number 4,756,559
- Issue date Jul 12, 1988
- Japan National Oil Corporation
- Mitsuhiro Shimada
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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Patents Applicationslast 30 patents

Information Patent Application
Hydrocarbon-reforming catalyst and a method of manufacturing thereof
- Publication number 20040067848
- Publication date Apr 8, 2004
- Japan National Oil Corporation
- Toshiya Wakatsuki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Japan National Oil Corporation

Organization

Patents Grantslast 30 patents

Method for producing hydrocarbons by Fischer-Tropsch process

Insert chip of oil-drilling tricone bit, manufacturing method there...

Method and apparatus for recovering core samples under pressure

Bit apparatus

Method of measuring flow rates of respective fluids constituting mu...

Acoustic wave transmission system and method for transmitting an ac...

Ship type floating oil production system

Sealed neutron tube

Shaft alignment

Device for controlling the drilling direction of drill bit

Method for determining density of an earth formation

Method for oxidative coupling of methane comprising catalytic cracking

Apparatus for oxidative coupling of methane

Information transmitting apparatus using tube body

Organic substance analyzing method and apparatus using portable con...

Method and apparatus for measuring steam density by neutron method

Receiving apparatus

Submersible optical wet connector

Swivel joint for fluid pipes

Patents Applicationslast 30 patents

Hydrocarbon-reforming catalyst and a method of manufacturing thereof