Patent US5053245A successfully refreshed from Google Patents.
US5053245A
Expired / Lapsed
US
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Method of improving the quality of an edge surface of a cutting device
Assignee: DIAMOND COATING TECHNOLOGIES LLC
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Filing: 1990-10-25
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Granted: 1991-10-01
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Expires: 2010-10-25
Abstract
Abstract A method of improving the quality of an edge surface of a cutting device, the method comprising a first step of irradiating assisting ions obtained from a first substance, which is in the state of gas in the room temperature, and a second substance, which is vapor-deposited from a hard material, onto a surface of a base body to form a first layer comprising of the hard material influenced by the assisting ions; and a second step of irradiating the second substance onto the first layer in an atmosphere of the first substance to form a second layer.
Inventors
- 👤 Seiichi Kiyama
- 👤 Hitoshi Hirano
- 👤 Masao Onji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:53
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/06; C23C14/0605
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A method of improving the quality of an edge surface of a cutting device, the method comprising: a first step of irradiating first ions obtained from a first substance, the first substance being a gas at room temperature, and a second substance, which is vapor-deposited from a hard material, onto a surface of a base body to form a first hard layer comprising molecules of the hard material influenced by the first ions; and a second step of irradiating the second substance onto the first hard layer in an atmosphere of the first substance to form a second layer.
Claim 2
Independent Claim
99 words
A method of improving the quality of an edge surface of a cutting device, the method comprising: a first step of irradiating first ions obtained from a first substance, the first substance being a gas at room temperature, and a second substance, which is vapor-deposited from a hard material, onto a surface of a base body to form a first hard layer comprising molecules of the hard material influenced by the first ions; and a second step of irradiating the second substance onto the first hard layer in an atmosphere of the first substance to form a second layer.
Claim 3
Dependent Claim
40 words
A method of claim 1, wherein the first substance is selected from a group consisting of H 2 , O 2 , N 2 , CO, CH 4 , CO 2 , C 2 H 2 and NH 3 .
Claim 4
Dependent Claim
83 words
A method of claim 1, wherein the hard material is selected from a group consisting of La, Ti, Zr, Nb, Ta, Mo, W, Co, Fe, Ni, Cr, Hf, V, Al, Mn, Re, Os, Cd, Au, Pt, Si, Al 2 O 3 , TiO 2 , TA 2 O 3 , SiO 2 , ZrO 2 , HfO 2 , AlN, BN, TiN, ZrN, HfN, CrN, CoN, WN, LaN, NbN, TaN, MoN, TiC, SiC, WC, ZrC, BC, MoC, HfC, TiB, WB, B and C.
Claim 5
Dependent Claim
39 words
A method of claim 1, wherein the first layer is formed with a ratio of the first ions of the first substance against the second substance being 0.2 at the lowest, the ratio being measured on the base body.
Claim 6
Dependent Claim
22 words
A method of claim 4, wherein the above ratio is adjusted to control the orientation and the crystallinity of the second layer.
Claim 7
Dependent Claim
21 words
A method of claim 4, wherein an acceleration voltage for the first ions is reduced in the passage of time hyperbolically.
Claim 8
Dependent Claim
14 words
A method of claim 4, wherein the cutting device is an electric razor blade.
Claim 9
Dependent Claim
46 words
A method of claim 1, wherein the first step is finished before a temperature of the base body gets high enough to damage flexibility of the base body, and the second step is continued until the first and the second layers get a desirable total thickness.
Claim 10
Dependent Claim
18 words
A method of claim 1, wherein the first and the second steps are repeated in the above order.
Claim 11
Dependent Claim
29 words
A method of claim 1, further comprising a step of irradiating carbon atoms and hydrogen ions simultaneously to form a pseudo-diamond film on a surface of the second layer.
References Cited (Backward Citations)
JPS61106767A
Cited
JPS62382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-30 | 1995-04-01 | 1995-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-30 | 1999-04-01 | 1999-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-30 | 2003-04-01 | 2003-10-01 | $7700.00 | Window Closed / Lapsed |