Inventor · disambiguated record
Masahiro Kumon
Also filed as: KUMON MASAHIRO
4 granted patents·51 citations·filing 1989–1996
76Inventor score
Files withHITACHI LTD4
Top patents by PatentIndex Score
4 records- 0161US4969182AMethod of telephone call wherein status data inhibits calls and indicates to the caller the reason the called subscriber is unavailableHITACHI LTD·Filed 1989·Granted Nov 6, 1990·25 cites·5 claims
- 0252US5563940ASystem for connecting an incoming call to a selected one of a number of extensionsHITACHI LTD·Filed 1995·Granted Oct 8, 1996·14 cites·15 claims
- 0342US5541992ASystem for connecting an incoming call to a selected one of a number of extensionsHITACHI LTD·Filed 1993·Granted Jul 30, 1996·11 cites·9 claims
- 0428US5815564ASystem for connecting an incoming call to a selected one of a number of extensionsHITACHI LTD·Filed 1996·Granted Sep 29, 1998·1 cites·3 claims
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