The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Nov. 15, 2002
Applicants:
Tadanao Kohara, Anan, JP;
Tomoya Kubo, Anan, JP;
Inventors:
Tadanao Kohara, Anan, JP;
Tomoya Kubo, Anan, JP;
Assignee:
Nichia Corporation, Tokushima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 1700 ; B01J 3100 ; C08F 444 ;
U.S. Cl.
CPC ...
Abstract
A process for preparing a half-vanadocene compound, the process comprising reacting chlorine gas with a vanadocene compound represented by the formula (1)CpVX  (1)wherein Cp represents cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl, substituted fluorenyl, benzoindenyl, substituted benzoindenyl, azulenyl or substituted azulenyl, and the two Cp groups may be the same or different, X represents fluorine, chlorine, bromine or iodine and the two X atoms may be the same or different.