Shigeru Sakai

Follow

Person

Ichikawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Catalyst for hydrotreating hydrocarbons
- Patent number 4,997,801
- Issue date Mar 5, 1991
- Sumitomo Metal Mining Company Limited
- Yukuaki Mitarai
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalysts for hydrotreating hydrocarbons and methods of preparing t...
- Patent number 4,992,403
- Issue date Feb 12, 1991
- Sumitomo Metal Mining Company Limited
- Yasuhito Takahashi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for hydrotreatment of hydrocarbons and method for producti...
- Patent number 4,981,828
- Issue date Jan 1, 1991
- Yasuhito Takahashi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalysts for hydrotreating hydrocarbons and method of activating t...
- Patent number 4,845,068
- Issue date Jul 4, 1989
- Sumitomo Metal Mining Company Limited
- Yasuhito Takahashi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL