EP0352061A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Metal material with film passivated by fluorination and apparatus composed of the metal material
Assignee: Stella Chemifa Corp
•
Filing: 1989-07-18
•
Granted: —
•
Expires: 2009-07-18
Abstract
Abstract A metal material characterised in that a film passivated by fluorination which is mainly composed of a metal fluoride substantially satisfying stoichiometric ratio is formed at least partially on a surface of a metal of the metal material, and an apparatus at least partially composed of the metal material.
Inventors
- 👤 Ohmi Tadahiro
- 👤 Miki Masahiro
- 👤 Maeno Matagoro
- 👤 Kikuyama Hirohisa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 10:54
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; H; H01; H01S; H01S3/00; H01S3/14; H01S3/22; H01S3/223; H01S3/225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
38 words
A metal material characterized in that a film passivated by fluorination which is mainly composed of a metal fluoride substantially satisfying stoichiometric ratio is formed at least partially on a surfafce of a metal of the metal material.
Claim 2
Dependent Claim
38 words
A metal material characterized in that a film passivated by fluorination which is mainly composed of a metal fluoride substantially satisfying stoichiometric ratio is formed at least partially on a surfafce of a metal of the metal material.
Claim 3
Dependent Claim
25 words
A metal material according to claim 1, wherein said film passivated by fluorination is formed on a surface of the metal polished like a mirror.
Claim 4
Dependent Claim
28 words
A metal material according to claim 1, wherein said metal is at least one of stainless steel, nickel, nickel alloy, aluminum, aluminum alloy, copper, copper alloy and chromium.
Claim 5
Dependent Claim
39 words
A metal material according to claim 1, wherein a metal film of at least one of nickel, nickel alloy, aluminum, aluminum alloy, copper, copper alloy and chromium is formed on a substance whose base material is said metal material.
Claim 6
Independent Claim
28 words
An apparatus characterized in that at least one of said metal materials according to claims 1, 2, 3 and 4 is used as a part forming the appratus.
Claim 7
Dependent Claim
12 words
An apparatus according to claim 5 which is a gas treating apparatus.
Claim 8
Dependent Claim
16 words
An apparatus according to claim 6 which is used in storage, distribution or reaction of gas.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.