Inventor · disambiguated record
Masahiro Ishigami
Also filed as: ISHIGAMI MASAHIRO
9 granted patents·206 citations·filing 1988–2014
90Inventor score
Top patents by PatentIndex Score
9 records- 0183US6944472B1Cellular phone allowing a hand-written character to be entered on the backNEC CORP·Filed 2000·Granted Sep 13, 2005·47 cites·10 claims
- 0281US9356178B2Plasmonic phototransistorUNIV CENTRAL FLORIDA RES FOUND·Filed 2014·Granted May 31, 2016·6 cites·20 claims
- 0360US6415165B1Portable telephone device with additional display and data inputting capabilityNEC CORP·Filed 1999·Granted Jul 2, 2002·37 cites·5 claims
- 0457US6542140B1Color liquid crystal display and display method thereofNEC CORP·Filed 2000·Granted Apr 1, 2003·6 cites·15 claims
- 0556US4982424ATelephone having receive call indicating function and mute/light keyNEC CORP·Filed 1990·Granted Jan 1, 1991·33 cites·9 claims
- 0655US5398332ASystem for detecting the malfunction of a CPU including a watchdog timer circuit and a memory for storing a malfunction countNEC CORP·Filed 1992·Granted Mar 14, 1995·31 cites·1 claims
- 0748US5535436APortable transceiver and ESN transfer system thereforNEC CORP·Filed 1995·Granted Jul 9, 1996·28 cites·19 claims
- 0842US4924193AVolume control circuit for use in portable telephone or the likeNEC CORP·Filed 1988·Granted May 8, 1990·7 cites·13 claims
- 0936US6625445B1Data transfer method and systemNEC CORP·Filed 1999·Granted Sep 23, 2003·11 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →