Inventor · disambiguated record
Hiroyuki Fukayama
Also filed as: FUKAYAMA HIROYUKI
6 granted patents·1 pending application·153 citations·filing 1975–2001
83Inventor score
Files withCITIZEN WATCH CO LTD6
Top patents by PatentIndex Score
7 records- 0193US6731181B2Temperature compensated oscillator using a control voltage generation circuitCITIZEN WATCH CO LTD·Filed 2001·Granted May 4, 2004·46 cites·35 claims
- 0287US6040744ATemperature-compensated crystal oscillatorCITIZEN WATCH CO LTD·Filed 1998·Granted Mar 21, 2000·73 cites·18 claims
- 0358US6239662B1Mis variable capacitor and temperature-compensated oscillator using the sameCITIZEN WATCH CO LTD·Filed 1999·Granted May 29, 2001·19 cites·8 claims
- 0446US6175284B1Temperature-compensated crystal oscillator having constant voltage generator with filterCITIZEN WATCH CO LTD·Filed 1999·Granted Jan 16, 2001·12 cites·8 claims
- 0532US6160459ATemperature-compensated crystal oscillatorCITIZEN WATCH CO LTD·Filed 1999·Granted Dec 12, 2000·3 cites·6 claims
- 0631US2001000414A1MIS variable capacitor and temperature-compensated oscillator using the sameFiled 2000·Application pending·0 cites
- 0729US4006584AElectronic timepieceCITIZEN WATCH CO LTD·Filed 1975·Granted Feb 8, 1977·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →