Hiroki Koyama

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing hydrorefining catalyst, and metal recovery...
- Patent number 7,335,618
- Issue date Feb 26, 2008
- Japan Energy Corporation
- Hiroki Koyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method and apparatus for stripping sulfur-containing compounds from...
- Patent number 7,001,503
- Issue date Feb 21, 2006
- Japan Energy Corporation
- Hiroki Koyama
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Hydrofining catalyst and hydrofining process
- Patent number 6,858,132
- Issue date Feb 22, 2005
- Japan Energy Corporation
- Hideaki Kumagai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Catalyst for hydrofining and method for preparation thereof
- Patent number 6,780,817
- Issue date Aug 24, 2004
- Japan Energy Corporation
- Hiroki Koyama
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Catalyst support, catalyst, reactor for hydrogenation reaction, and...
- Patent number 6,325,919
- Issue date Dec 4, 2001
- Japan Energy Corportion
- Hiroki Koyama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing hydrorefining catalyst, and metal recovery...
- Publication number 20060258531
- Publication date Nov 16, 2006
- Hiroki Koyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method for manufacturing hydrorefining catalyst, and metal recovery...
- Publication number 20030130118
- Publication date Jul 10, 2003
- Hiroki Koyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Hydrofining catalyst and hydrofining process
- Publication number 20020155045
- Publication date Oct 24, 2002
- Hideaki Kumagai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL