Search Strings and Number of Hits for Light-emitting Diode (LED) device
In the searches for a light-emitting diode (LED) with following features, about 875 hits were generated.
LED features: A LED comprising: an LED chip that emits a blue light having a first wavelength, and a thin film layer over the LED chip that interacts with the blue light to form a light having a different wavelength.
After screening and reviewing the 875 hits, 7 Japanese patent documents are uncovered. In additional to the 7 documents, 11 other patents disclosing LEDs with changed wavelength of the emitted light by using fluorescent material were also identified.
Search strings used and number of hits generated are summarized below for reference.
|Search No. ||Explanation ||Number of hits*|
|S13 ||S5+ S11+ S12 ||875|
|S12 ||S1*S2*S3*S10 ||71|
|S11 ||S9*S10 ||45|
|S10 ||Full text search using synonyms corresponding to “passivation” ||21613|
|S9 ||S1*S2*S3*S8 ||2288|
|S8 ||Full text search Using Japanese synonym corresponding to “wavelength” ||435994|
|S7 ||S1*S2*S3 ||3674|
|S6 ||S1*S2 ||26687|
|S5 ||S1*S2*S3*S4 ||823|
|S4 ||Full text search Using synonym corresponding to “white” ||583498|
|S3 ||Full text search Using synonym corresponding to “blue” ||354418|
|S2 ||Using Japanese key word synonyms corresponding to “light emitting device”, “light emitting element” ||118338|
|S1 ||IPC search ||440703|
Period of the search:
Documents published prior to 2002
NRI, Patolis, and JPO database