Cutting using high energy radiation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 16, 1993
Grant Date -
N/A
app pub date -
Apr 10, 1991
filing date -
Aug 15, 1988
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In order to make a laser cut in a diamond (1), the diamond (1) is reciprocated transversely, the radiation is focussed onto the bottom of the cut (6) by a stationary focussing lens (4 ), and the radiation is passed to the focussing lens (4) by a mirror (3) which is reciprocated in the same direction as the diamond (1), thereby rocking the axis (5) of the beam below the lens (4). This increases the energy entering the cut and reduces the focal spot area projected on the cut wall, thus increasing the energy density of radiation on the inclined cut walls.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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ANSTALT GERSAN | FL-9490 VADUZ |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Gaukroger, Michael P | Hampshire, GB2 | 2 | 13 |
# of filed Patents : 2 Total Citations : 13 |
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Patent Citation Ranking
- 6 Citation Count
- B23K Class
- 5.01 % this patent is cited more than
- 32 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Apr 13, 2010 | I | Issuance | |
Mar 24, 2010 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 20, 2008 | P | Published | |
Dec 20, 2006 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATAKI, HIROSHI;FUKUI, TOSHIMI;REEL/FRAME:018774/0715 Owner name: KRI, INC., JAPAN Effective Date: Dec 20, 2006 |
Jun 30, 2005 | F | Filing | |
Jul 05, 2004 | PD | Priority Date |

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