Shotaro Kitamura has been granted 9 US patents while listed as an inventor at Nec . The first was granted in 1994 and the most recent in July 2013. Shotaro Kitamura ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Shotaro Kitamura in Tokyo, JP.
Patents per Year Patents granted per year, 1994 to 2013 Bar chart with a peak of 2 patents in 2000. peak 2 1994: 1 patents 1994 1996: 1 patents 1996 1997: 1 patents 1997 1998: 1 patents 1998 2000: 2 patents 2000 2009: 1 patents 2009 2010: 1 patents 2010 2013: 1 patents 2013
Issued Patents All Time
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Showing 1–9 of 9 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8477819 Semiconductor laser diode device and method of fabrication thereof — 2013-07-02
7666694 Method for manufacturing semiconductor laser device and semiconductor laser device Masahide Kobayashi 2010-02-23
7633986 Distributed feedback laser diode Yasutaka Sakata 2009-12-15
6141477 Semiconductor optical amplification element — 2000-10-31
$67,000
6052222 Semiconductor optical amplifier — 2000-04-18
$91,000
5770466 Semiconductor optical integrated circuits and method for fabricating the same Tatsuya Sasaki , Mitsuhiro Kitamura , Kiichi Hamamoto , Keiro Komatsu , Yasutaka Sakata 1998-06-23
$18,000
5659565 Semiconductor optical device with mesa structure which is surrounded laterally by insulating mask for preventing current from leaking directly from cladding layer to substrate and process of fabrication thereof — 1997-08-19
5565693 Semiconductor optical integrated circuits Tatsuya Sasaki , Mitsuhiro Kitamura , Kiichi Hamamoto , Keiro Komatsu , Yasutaka Sakata 1996-10-15
$13,000
5374587 Method of manufacturing optical semiconductor element — 1994-12-20
$41,000
