US5097278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera using a film with a magnetic memory
Assignee: Canon Inc
•
Filing: 1991-03-14
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Granted: 1992-03-17
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Expires: 2011-03-14
Abstract
Abstract A camera using a film with a magnetic memory has a magnetic head for writing information to or reading information from the magnetic memory of the film, a pressure plate for holding the magnetic head, and a notch generally formed in the pressure plate at an area where the pressure plate holds the magnetic head.
Inventors
- 👤 Hideo Tamamura
- 👤 Chikara Aoshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:52
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G11; G11B; G11B15/00; G11B15/60; G11B15/62; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/244
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
64 words
A camera using a film with a magnetic memory comprising: (A) a magnetic head for writing information to or reading information from the magnetic memory of the film; and (B) restriction means for holding said magnetic head and assuring the planarity of the film; said restriction means having a notch gently formed to said restriction means at an area to hold said magnetic head.
Claim 2
Dependent Claim
64 words
A camera using a film with a magnetic memory comprising: (A) a magnetic head for writing information to or reading information from the magnetic memory of the film; and (B) restriction means for holding said magnetic head and assuring the planarity of the film; said restriction means having a notch gently formed to said restriction means at an area to hold said magnetic head.
Claim 3
Dependent Claim
14 words
A camera according to claim 1 wherein said restriction means includes a pressure plate.
Claim 4
Dependent Claim
12 words
A camera according to claim 1 wherein said notch includes a beveling.
Claim 5
Dependent Claim
35 words
A camera according to claim 1 wherein said restriction means holds said magnetic head such that a leading edge of said magnetic head is substantially coplanar with a film contact plane of said restriction means.
Claim 6
Dependent Claim
13 words
A camera according to claim 1 wherein said notch includes a linear groove.
Claim 7
Dependent Claim
18 words
A camera according to claim 5 wherein said linear groove is perpendicular to the direction of film transport.
Claim 8
Dependent Claim
17 words
A camera according to claim 5 wherein said linear groove is along the direction of film transport.
Claim 9
Dependent Claim
42 words
A camera according to claim 1 further comprising: urging means for urging the magnetic memory of the film to said magnetic head, said urging means urging the magnetic memory of the film to rail magnetic head within the area of said notch.
Claim 10
Dependent Claim
15 words
A camera according to claim 8 wherein said urging means has a curved urging plane.
Claim 11
Dependent Claim
19 words
A camera according to claim 8 wherein said urging means has curved planes at edges of an urging plane.
Claim 12
Dependent Claim
27 words
A camera according to claim 8 wherein said urging means has a slipping member on a film contact plane thereof to smooth the contact with the film.
Claim 13
Dependent Claim
14 words
A camera according to claim 11 wherein said slipping member includes a teflon sheet.
Claim 14
Dependent Claim
35 words
A camera according to claim 8 wherein said restriction means holds said magnetic head such that a leading edge of said magnetic head is substantially coplanar with a film contact plane of said restriction means.
Claim 15
Dependent Claim
13 words
A camera according to claim 8 wherein said notch includes a linear groove.
Claim 16
Dependent Claim
18 words
A camera according to claim 14 wherein said linear groove is perpendicular to the direction of film transport.
Claim 17
Dependent Claim
17 words
A camera according to claim 14 wherein said linear groove is along the direction of film transport.
References Cited (Backward Citations)
US5005031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |