US3256433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy-selecting electron microscope using electron optics
Assignee: Hitachi Ltd
•
Filing: 1963-03-26
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Granted: 1966-06-14
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Watanabe Hiroshi
- 👤 Uyeda Ryozi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
AN ENERGY-SELECTING ELECTRON MICROSCOPE HAVING ELECTRON BEAM GENERATING MEANS, A SPECIMEN AND AN OBJECTIVE LENS COMPRISING COMPONENTS ARRANGED BETWEEN SAID OBJECTIVE LENS AND THE IMAGING PLANE OF THE MICROSCOPE INCLUDING A FIRST AUXILIARY LENS, A FIRST SELECTING MEANS FOR SELECTING AN ELECTRON RAY FORMING ONE OF THE ELECTRON DIFFRACTION SPOTS OF SAID SPECIMEN UNDER EXAMINATION ON THE BACK FOCAL PLANE OF THE OBJECTIVE LENS, MEANS FOR ENERGY-ANALYZING THE ELECTRON RAY SELECTED BY SAID FIRST SELECTING MEANS INTO MONOENERGETIC ELECTRON RAYS, A SECOND SELECTING MEANS FOR SELECTING ONE OF SAID MONOENERGETIC ELECTRON RAYS FORMED BY SAID ANALYZING MEANS, AND AN AUXILIARY LENS MEANS FOR MAGNIFYING SAID MONOENERGETIC ELECTRON RAY SELECTED BY SAID SECOND SELECTING MEANS TO FORM A FINAL IMAGE ON THE IMAGING PLANE.
Claim 2
Dependent Claim
123 words
AN ENERGY-SELECTING ELECTRON MICROSCOPE HAVING ELECTRON BEAM GENERATING MEANS, A SPECIMEN AND AN OBJECTIVE LENS COMPRISING COMPONENTS ARRANGED BETWEEN SAID OBJECTIVE LENS AND THE IMAGING PLANE OF THE MICROSCOPE INCLUDING A FIRST AUXILIARY LENS, A FIRST SELECTING MEANS FOR SELECTING AN ELECTRON RAY FORMING ONE OF THE ELECTRON DIFFRACTION SPOTS OF SAID SPECIMEN UNDER EXAMINATION ON THE BACK FOCAL PLANE OF THE OBJECTIVE LENS, MEANS FOR ENERGY-ANALYZING THE ELECTRON RAY SELECTED BY SAID FIRST SELECTING MEANS INTO MONOENERGETIC ELECTRON RAYS, A SECOND SELECTING MEANS FOR SELECTING ONE OF SAID MONOENERGETIC ELECTRON RAYS FORMED BY SAID ANALYZING MEANS, AND AN AUXILIARY LENS MEANS FOR MAGNIFYING SAID MONOENERGETIC ELECTRON RAY SELECTED BY SAID SECOND SELECTING MEANS TO FORM A FINAL IMAGE ON THE IMAGING PLANE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |