Patent US4454210A successfully refreshed from Google Patents.
US4454210A
Expired / Lapsed
US
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Electrophotographic reproduction of a three-dimensional object
Assignee: Ricoh Co Ltd
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Filing: 1982-01-25
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Granted: 1984-06-12
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Expires: 2002-01-25
Abstract
Abstract A method and apparatus for making a two-dimensional copy from either a two-dimensional or three-dimensional object is provided. In making a two-dimensional copy from a three-dimensional object, the object is submerged in the liquid contained in a container having a transparent bottom portion to which said object is brought into contact by placing a cover member thereon. The object is then exposed through the transparent bottom portion thereby the projected image of the object viewed through the transparent bottom portion is reproduced on a sheet of copy paper.
Inventors
- 👤 Kenzo Ariyama
- 👤 Hideo Yamazaki
- 👤 Tomotsu Motohashi
- 👤 Minoru Hirota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/605; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525; G03B27/526
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
An electrophotographic method for making a two-dimensional copy from a three-dimensional object, said method comprising the steps of: immersing said object into a quantity of transparent liquid contained in a container having a transparent bottom plate; bringing said object partly in contact with said bottom plate; exposing said object through said transparent bottom plate to a photosensitive member, by means of an optical system having a field of focal depth coincident with said object on said bottom plate; forming an electrostatic latent image of said object on said bottom plate on said photosensitive member; and developing said latent image to produce a two-dimensional image of said object on said photosensitive member.
Claim 2
Dependent Claim
111 words
An electrophotographic method for making a two-dimensional copy from a three-dimensional object, said method comprising the steps of: immersing said object into a quantity of transparent liquid contained in a container having a transparent bottom plate; bringing said object partly in contact with said bottom plate; exposing said object through said transparent bottom plate to a photosensitive member, by means of an optical system having a field of focal depth coincident with said object on said bottom plate; forming an electrostatic latent image of said object on said bottom plate on said photosensitive member; and developing said latent image to produce a two-dimensional image of said object on said photosensitive member.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said three-dimensional object is an internal organ of a creature.
Claim 4
Dependent Claim
14 words
The method of claim 1 or 2 wherein said liquid includes water and/or formalin.
Claim 5
Dependent Claim
42 words
The method of claim 1 wherein said step of bringing said object includes placing a cover member having a white bottom surface on said object such that any part of the bottom surface of said cover member is submerged in said liquid.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein said cover member is a flexible sheet.
References Cited (Backward Citations)
US2859352A
Cited
US3050872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |