US5120625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon material containing a halogen and deposition method for same
Assignee: Semiconductor Energy Laboratory Co Ltd
•
Filing: 1990-09-26
•
Granted: 1992-06-09
•
Expires: 2010-09-26
Abstract
Abstract An electrophotographic member and method of using same where the electrophotographic member includes an organic photosensitive member and a passivation film formed on the organic photosensitive member where the film includes a first carbon containing layer including halogen atoms and being in direct contact with the organic photosensitive member and a second carbon containing layer including halogen atoms and formed on the first carbonaceous layer, wherein the concentration of halogen atoms in the first layer is lower than that in the second layer and the thickness of the first layer is substantially less than that of the second layer.
Inventors
- 👤 Shunpei Yamazaki
- 👤 Shigenori Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:39
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C16/00; C23C16/22; C23C16/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
91 words
An electrophotographic member comprising an organic photosensitive member and a passivation film formed on said organic photosensitive member where the film includes: a first carbon containing layer including halogen atoms and being in direct contact with said organic photosensitive member; and a second carbon containing layer including halogen atoms and formed on said first carbon containing layer, wherein the concentration of halogen atoms in said first layer is lower than that in said second layer and the thickness of said first layer is substantially less than that of said second layer.
Claim 2
Dependent Claim
91 words
An electrophotographic member comprising an organic photosensitive member and a passivation film formed on said organic photosensitive member where the film includes: a first carbon containing layer including halogen atoms and being in direct contact with said organic photosensitive member; and a second carbon containing layer including halogen atoms and formed on said first carbon containing layer, wherein the concentration of halogen atoms in said first layer is lower than that in said second layer and the thickness of said first layer is substantially less than that of said second layer.
Claim 3
Dependent Claim
28 words
The electrophotographic member as in claim 1 including a third layer formed on the second layer to increase the hardness of the external surface of the passivation film.
Claim 4
Dependent Claim
28 words
The electrophotographic member as in claim 1 where the organic photosensitive member includes a charge generating film and a charge transfer film formed on the charge generating film.
Claim 5
Dependent Claim
22 words
The electrophotographic member as in claim 3 where the thickness of the charge generating film is in the range of 0.6-1.2 microns.
Claim 6
Dependent Claim
18 words
The electrophotographic member as in claim 4 where the thickness of the charge transfer film is 20 microns.
Claim 7
Dependent Claim
23 words
The electrophotographic member as in claim 1 where the resistivity of the passivation film is about 10 11 to 10 9 ohm cm.
Claim 8
Dependent Claim
28 words
The electrophotographic member as in claim 1 where the transparency of the passivation film is not lower than 80% to light rays of 500 nm wavelengths or longer.
Claim 9
Dependent Claim
28 words
The electrophotographic member as in claim 1 where the transparency of the passivation film is not lower than 60% to light rays of 400 nm wavelength or longer.
Claim 10
Dependent Claim
136 words
An electrophotographic copying method comprising: charging an electrophotographic member; applying a light image to the charged electrophotographic member to form a latent charge image on the electrophotographic member; applying toner to the latent charge image to form a toner image; transferring the toner image to a copy medium; and wherein the electrophotographic member includes a passivation film formed on an organic photosensitive member where the film includes: a first carbon containing layer containing halogen atoms and being in direct contact with said organic photosensitive member; and a second carbon containing layer containing halogen atoms and formed on said first carbon containing layer, wherein the concentration of halogen atoms in said first layer is lower than that in said second layer and the thickness of said first layer is substantially less than that of said second layer.
Claim 11
Dependent Claim
136 words
An electrophotographic copying method comprising: charging an electrophotographic member; applying a light image to the charged electrophotographic member to form a latent charge image on the electrophotographic member; applying toner to the latent charge image to form a toner image; transferring the toner image to a copy medium; and wherein the electrophotographic member includes a passivation film formed on an organic photosensitive member where the film includes: a first carbon containing layer containing halogen atoms and being in direct contact with said organic photosensitive member; and a second carbon containing layer containing halogen atoms and formed on said first carbon containing layer, wherein the concentration of halogen atoms in said first layer is lower than that in said second layer and the thickness of said first layer is substantially less than that of said second layer.
Claim 12
Dependent Claim
28 words
A copying method as in claim 9 including a third layer formed on the second layer to increase the hardness of the external surface of the passivation film.
Claim 13
Dependent Claim
28 words
A copying method as in claim 9 where the organic photosensitive member includes a charge generating film and a charge transfer film formed on the charge generating film.
Claim 14
Dependent Claim
22 words
A copying method as in claim 11 where the thickness of the charge generating film is in the range of 0.6-1.2 microns.
Claim 15
Dependent Claim
18 words
A copying method as in claim 12 where the thickness of the charge transfer film is 20 microns.
Claim 16
Dependent Claim
23 words
A copying method as in claim 9 where the resistivity of the passivation film is about 10 11 to 10 9 ohm cm.
Claim 17
Dependent Claim
28 words
A copying method as in claim 9 where the transparency of the passivation film is not lower than 80% to light rays of 500 nm wavelengths or longer.
Claim 18
Dependent Claim
28 words
A copying method as in claim 9 where the transparency of the passivation film is not lower than 60% to light rays of 400 nm wavelength or longer.
References Cited (Backward Citations)
US4260238A
Cited
US4508781A
Cited
US4486286A
Cited
US4597844A
Cited
US4783361A
Cited
US4770940A
Cited
US4664999A
Cited
US4675265A
Cited
US4713309A
Cited
US4801515A
Cited
US4882256A
Cited
US4837137A
Cited
US4809876A
Cited
US4965156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |