Laser and method of controlling laser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 8, 2018
Issued Date -
N/A
app pub date -
Mar 1, 2017
filing date -
Sep 19, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A laser includes first through fourth gain media, first through fifth wavelength selective filters, and first through fourth wavelength selective mirrors. The first through fourth gain media emit laser beams of different wavelengths. Each of the first through fifth wavelength selective filters includes first through fourth input/output ports. The fifth wavelength selective filter selects light of periodic wavelengths. The first through fourth wavelength selective filters have their respective first input/output ports connected to the first through fourth gain media, respectively, have their respective fourth input/output ports connected to the first through fourth wavelength selective mirrors, respectively, and have their respective second input/output ports connected to the first through fourth input/output ports, respectively, of the fifth wavelength selective filter.
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 | |
---|---|---|
FUJITSU LIMITED | KAWASAKI |
International Classification(s)

- 2017 Application Filing Year
- H01S Class
- 1389 Applications Filed
- 1119 Patents Issued To-Date
- 80.57 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Takabayashi, Kazumasa | Atsugi, JP | 38 | 294 |
# of filed Patents : 38 Total Citations : 294 | |||
Yamamoto, Tsuyoshi | Zama, JP | 324 | 4081 |
# of filed Patents : 324 Total Citations : 4081 |
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Patent Citation Ranking
- 0 Citation Count
- H01S Class
- 0 % this patent is cited more than
- 7 Age
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 8, 2025 |
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Date | Code | Event | Description |
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Oct 27, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
May 08, 2018 | I | Issuance | |
Apr 18, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 22, 2017 | P | Published | |
Mar 22, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKABAYASHI, KAZUMASA;YAMAMOTO, TSUYOSHI;SIGNING DATES FROM 20170221 TO 20170222;REEL/FRAME:041684/0492 Owner name: FUJITSU LIMITED, JAPAN |
Mar 01, 2017 | F | Filing |

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