P

Inventor

KITAMURA SHOTARO

JP9 patents
⚠️ This page may combine multiple inventors who share the name “KITAMURA SHOTARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NEC CORP

5 patents
US6141477AOct 31, 2000

Semiconductor optical amplification element

NEC CORP100 citations96
US6052222AApr 18, 2000

Semiconductor optical amplifier

NEC CORP59 citations94
US5770466AJun 23, 1998

Semiconductor optical integrated circuits and method for fabricating the same

NEC CORP32 citations92
US5565693AOct 15, 1996

Semiconductor optical integrated circuits

NEC CORP34 citations92
US5374587ADec 20, 1994

Method of manufacturing optical semiconductor element

NEC CORP0 citations50

NEC ELECTRONICS CORP

2 patents
US7666694B2Feb 23, 2010

Method for manufacturing semiconductor laser device and semiconductor laser device

NEC ELECTRONICS CORP1 citations51
US7633986B2Dec 15, 2009

Distributed feedback laser diode

NEC ELECTRONICS CORP1 citations51

KITAMURA SHOTARO

1 patent
US8477819B2Jul 2, 2013

Semiconductor laser diode device and method of fabrication thereof

KITAMURA SHOTARO34 citations88

(unassigned)

1 patent
US5659565AAug 19, 1997

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

18 citations82