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Kawasaki, Japan

Keiko Takeda

USPTO Granted Patents = 18

Average Co-Inventor Count = 3.5

ph-index = 10

Forward Citations = 398(Granted Patents)

Location History:

Yokohama, JP (1991 - 1996)
Kawasaki, JP (1994 - 2004)

Company Filing History:

18 out of 39,245

Fujitsu Corporation

Nippon Telegraph and Telephone Corporation

where one patent can have more than one assignee

Years Active: 1991-2004

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18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6748176 - Optical dropping apparatus and optical add/drop multiplexer (2004-06-08),

2. 6408652 - Solution doping method of making an optical amplifying fiber (2002-06-25),

3. 6266180 - Optical fiber amplifier using optical fiber having a portion which suppresses nonlinear optical phenomena (2001-07-24),

4. 6163398 - Dispersion compensating fiber and optical amplifier using same (2000-12-19),

5. 6111586 - Electronic photo album editing apparatus (2000-08-29),

6. 5970198 - Optically amplifying fiber and optical fiber amplifier (1999-10-19),

7. 5930436 - Optical amplifying fiber and process of producing the same (1999-07-27),

8. 5812113 - Picture forming device (1998-09-22),

9. 5708826 - Apparatus and method for converting presentation data (1998-01-13),

10. 5508842 - Optical amplifier (1996-04-16),

11. 5467218 - Optical fiber amplifier (1995-11-14),

12. 5327282 - Optical amplifier for 1.3 .mu.m band (1994-07-05),

13. 5276549 - Optical transmitter including rare earth-doped fiber (1994-01-04),

14. 5155621 - Optical fiber amplifier (1992-10-13),

15. 5140598 - Fiber optic amplifier (1992-08-18),

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