Method for amplifying a solid-state laser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 25, 2007
Grant Date -
Sep 8, 2005
app pub date -
Aug 27, 2004
filing date -
Mar 4, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Conventionally, a laser beam is amplified by making a single pass through an amplifier but the laser beam emitted from the oscillator generally has low energy, so the energy stored in the amplifier cannot be fully extracted and only low laser output power and overall efficiency result.According to the method of the invention for amplifying a solid-state laser, the laser beam is passed through the amplifier multiple times and with spatial uniformity so as to achieve efficient extraction of the energy stored in the amplifier and the thermally induced distortion of the laser beam can be compensated by the single amplifier.
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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JAPAN ATOMIC ENERGY RESEARCH INSTITUTE | 2-2 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO |
International Classification(s)

- 2004 Application Filing Year
- H01S Class
- 981 Applications Filed
- 495 Patents Issued To-Date
- 50.46 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kiriyama, Hiromitsu | Kyoto, JP | 7 | 37 |
# of filed Patents : 7 Total Citations : 37 | |||
Yamakawa, Koichi | Kyoto, JP | 13 | 34 |
# of filed Patents : 13 Total Citations : 34 |
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Patent Citation Ranking
- 0 Citation Count
- H01S Class
- 0 % this patent is cited more than
- 18 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

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Oct 26, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 25, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 25, 2015 |
Sep 25, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 08, 2015 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 24, 2011 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Sep 25, 2007 | I | Issuance | |
Sep 08, 2005 | P | Published | |
Dec 16, 2004 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIRIYAMA, HIROMITSU;YAMAKAWA, KOICHI;REEL/FRAME:016140/0408 Owner name: JAPAN ATOMIC ENERGY RESEARCH INSTITUTE, JAPAN Effective Date: Dec 16, 2004 |
Aug 27, 2004 | F | Filing | |
Mar 04, 2004 | PD | Priority Date |

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